Resolve merge conflict with social-backup-poc

* social-backup-poc:
  Improve setup password explanation string
  Improve choose password info dialog
  Improve threshold selector screen
  Basic strength meter when choosing threshold

bramble-android/build.gradle

@@ -50,10 +50,10 @@ dependencies {
 	compileOnly 'javax.annotation:jsr250-api:1.0'
 
 	testImplementation project(path: ':bramble-api', configuration: 'testOutput')
-	testImplementation 'junit:junit:4.12'
-	testImplementation "org.jmock:jmock:2.8.2"
-	testImplementation "org.jmock:jmock-junit4:2.8.2"
-	testImplementation "org.jmock:jmock-legacy:2.8.2"
+	testImplementation "junit:junit:$junit_version"
+	testImplementation "org.jmock:jmock:$jmock_version"
+	testImplementation "org.jmock:jmock-junit4:$jmock_version"
+	testImplementation "org.jmock:jmock-imposters:$jmock_version"
 }
 
 def torBinariesDir = 'src/main/res/raw'

bramble-android/src/test/java/org/briarproject/bramble/account/AndroidAccountManagerTest.java

@@ -9,7 +9,7 @@ import org.briarproject.bramble.api.db.DatabaseConfig;
 import org.briarproject.bramble.api.identity.IdentityManager;
 import org.briarproject.bramble.test.BrambleMockTestCase;
 import org.jmock.Expectations;
-import org.jmock.lib.legacy.ClassImposteriser;
+import org.jmock.imposters.ByteBuddyClassImposteriser;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
@@ -44,7 +44,7 @@ public class AndroidAccountManagerTest extends BrambleMockTestCase {
 	private AndroidAccountManager accountManager;
 
 	public AndroidAccountManagerTest() {
-		context.setImposteriser(ClassImposteriser.INSTANCE);
+		context.setImposteriser(ByteBuddyClassImposteriser.INSTANCE);
 		app = context.mock(Application.class);
 		applicationInfo = new ApplicationInfo();
 		applicationInfo.dataDir = testDir.getAbsolutePath();

bramble-android/witness.gradle

@@ -1,38 +1,39 @@
 dependencyVerification {
     verify = [
-        'cglib:cglib:3.2.0:cglib-3.2.0.jar:adb13bab79712ad6bdf1bd59f2a3918018a8016e722e8a357065afb9e6690861',
-        'com.android.tools.analytics-library:protos:27.1.1:protos-27.1.1.jar:13f77e73762e58ab372d140b3a6be6903aea9775b62dd14fbc62d4cc7069c9a4',
-        'com.android.tools.analytics-library:shared:27.1.1:shared-27.1.1.jar:82930a52001410e97d809930b670f4de3002286975f046b9de5f6b777b06d366',
-        'com.android.tools.analytics-library:tracker:27.1.1:tracker-27.1.1.jar:31bc5a00be0055bac89c9b2f34751883e987cd89e3ac1783720645c164f591d9',
+        'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
+        'com.android.tools.analytics-library:protos:27.2.2:protos-27.2.2.jar:02482564443c294dfe87c5f2b25387f724a698a09ed58e0cf0127400caa35a19',
+        'com.android.tools.analytics-library:shared:27.2.2:shared-27.2.2.jar:0efe017ca17ee775c5af386475a09799a1282faa04821d54810c1a34f6348d9c',
+        'com.android.tools.analytics-library:tracker:27.2.2:tracker-27.2.2.jar:62489d84192dc06219664945c43201654ff85c3b715f46550751512a880d0e39',
         'com.android.tools.build:aapt2-proto:4.1.0-alpha01-6193524:aapt2-proto-4.1.0-alpha01-6193524.jar:17e75523e1e92dd4f222c7368ee41df9e964a508232f591e265d0c499baf9dca',
-        'com.android.tools.build:apksig:4.1.1:apksig-4.1.1.jar:e0a69da9e5a03986d608b45bbf954ef0e6a0b3f58c1b8315bd169ec08b279e72',
-        'com.android.tools.build:apkzlib:4.1.1:apkzlib-4.1.1.jar:ba4b5e419b6be0130eae7f8301c3a551ad3976f487d2e0c6852ebb175ac41127',
-        'com.android.tools.build:builder-model:4.1.1:builder-model-4.1.1.jar:e95c99cc298ad67b8deb6ced99c51abc8f59afebedad044b1a10dde14646a4dd',
-        'com.android.tools.build:builder-test-api:4.1.1:builder-test-api-4.1.1.jar:464f596ab261c051c3847406748e843770dea123f6fa5fee8a9390644e709b7a',
-        'com.android.tools.build:builder:4.1.1:builder-4.1.1.jar:0f78d4759d2f7b57b95865522ec34596ba419b9982f3b25e3449213f9c98b80d',
-        'com.android.tools.build:gradle-api:4.1.1:gradle-api-4.1.1.jar:d42e6b539e4c1353ad3546e75ec8ce11a017b97481023e8ea18577eefe374358',
-        'com.android.tools.build:manifest-merger:27.1.1:manifest-merger-27.1.1.jar:7a45fa143687859bb2e5a961dcf6ee88094d3853de0cb543dc03dbcb0f4b554b',
-        'com.android.tools.ddms:ddmlib:27.1.1:ddmlib-27.1.1.jar:da6e4bd834b6a85dae8019039849d8bd96933347dfbf460df74913ddade6e40a',
-        'com.android.tools.external.com-intellij:intellij-core:27.1.1:intellij-core-27.1.1.jar:2591a7363c4443c59bf9f793730acafce9d6ec3076e2f46716edaf53a41b6fb6',
-        'com.android.tools.external.com-intellij:kotlin-compiler:27.1.1:kotlin-compiler-27.1.1.jar:5054ae770ba788f110303c65abd6b1fa28eccf52dee1274510e201b2b81885c8',
-        'com.android.tools.external.org-jetbrains:uast:27.1.1:uast-27.1.1.jar:54cd8f6886a9d2f5641659dd5c91f626629672cd48301f7f0bd6aad9bd448714',
-        'com.android.tools.layoutlib:layoutlib-api:27.1.1:layoutlib-api-27.1.1.jar:8a9a22e3b309521ea83b724e5a89cfdac6076f52d675c0e17d77b05527bc0f8c',
-        'com.android.tools.lint:lint-api:27.1.1:lint-api-27.1.1.jar:c1d8176094cb0478786070d40533efb578ebc53529a82f6ef5bee879bdca418b',
-        'com.android.tools.lint:lint-checks:27.1.1:lint-checks-27.1.1.jar:3899c91e00bd059b40c31a9ca00cd0f8303191947608735ae1b657323693fb61',
-        'com.android.tools.lint:lint-gradle-api:27.1.1:lint-gradle-api-27.1.1.jar:26aa89d38b9825cc73229daa82a68875801c8b8491f30497ce62aff1f206eb0d',
-        'com.android.tools.lint:lint-gradle:27.1.1:lint-gradle-27.1.1.jar:f7355823ead869f4d28184ba28b7a0c693b507519a2d3705bb9848a0f35b3756',
-        'com.android.tools.lint:lint-model:27.1.1:lint-model-27.1.1.jar:bc23c0c413bdfca59dac2cd56b870d8360d009e9ec0d365e71f774bcf127971d',
-        'com.android.tools.lint:lint:27.1.1:lint-27.1.1.jar:2f6038a5398a42bd591883c3f5e5894f4ec52ca1c3683bf94fa8553c1700af81',
-        'com.android.tools:annotations:27.1.1:annotations-27.1.1.jar:ff28c504d2acb9fd1a5ffbd97ae85cf59ee18c76927525aad250509bccf2cab1',
-        'com.android.tools:common:27.1.1:common-27.1.1.jar:63d9a2a9ad6d278db319f3749b9f50bdf5457ef7020074a1bebe124e714b535c',
-        'com.android.tools:dvlib:27.1.1:dvlib-27.1.1.jar:998a54201fc1cefee5f2399215e95c42b1f64f9e1d8f4452eb8255c68ba5440f',
-        'com.android.tools:repository:27.1.1:repository-27.1.1.jar:d25b74ccabf4d876903efb375e9af6fb380d8ae0445bb74bbdcc225c1e37fa1d',
-        'com.android.tools:sdk-common:27.1.1:sdk-common-27.1.1.jar:4473ae97d0ef7061ee1de61041d5aa97405ae08e44c09cf7bb278b42e4b97c7c',
-        'com.android.tools:sdklib:27.1.1:sdklib-27.1.1.jar:08e6b83961ac9724b3c1e3d0eff971f13be6701292c77914b8794480f3391250',
-        'com.android:signflinger:4.1.1:signflinger-4.1.1.jar:0c66825988873ec2d51057fa463f54a8f18fc7326ff4530b9da363b71e97ce60',
-        'com.android:zipflinger:4.1.1:zipflinger-4.1.1.jar:0a8c3e52ac13dd031236f9fb5ba4408b1d5dcd12325a05440b36da09d8881446',
+        'com.android.tools.build:apksig:4.2.2:apksig-4.2.2.jar:632690bf641b429dcb31650e6b2f6a2e87c4ac8afd45a6ba3cbc99fb1612178f',
+        'com.android.tools.build:apkzlib:4.2.2:apkzlib-4.2.2.jar:3b5167c1265e97f65201c4d2be6a6f72165a3aa2fe9e0594a59b67af9e9e97b9',
+        'com.android.tools.build:builder-model:4.2.2:builder-model-4.2.2.jar:41868de0cb88ae70b828eee4191c13e0233f433abb1becdf6a2bd391bd446bc0',
+        'com.android.tools.build:builder-test-api:4.2.2:builder-test-api-4.2.2.jar:2f305c6d3a7b637d736b821bad372dcabd959e979f2065a9f65bac1e7b4d1875',
+        'com.android.tools.build:builder:4.2.2:builder-4.2.2.jar:40fedd0d16db8f34ddb4eaf812d966b90ef1764f65cf119030442823bcf995cd',
+        'com.android.tools.build:gradle-api:4.2.2:gradle-api-4.2.2.jar:dd4ef35bbbfb8fc2d20e3311c76b516bc1672e82b61cb3a59fc877da0f9b4f61',
+        'com.android.tools.build:manifest-merger:27.2.2:manifest-merger-27.2.2.jar:971974756f32d9e94c857d92772b1499b0b0f5d9c70cb8ebbd20d9bbf804a923',
+        'com.android.tools.ddms:ddmlib:27.2.2:ddmlib-27.2.2.jar:9ab0f9b58737c316af454184705854c75936ca3531f21acc29bd68a3343334d1',
+        'com.android.tools.external.com-intellij:intellij-core:27.2.2:intellij-core-27.2.2.jar:01619d5dc28ec909cbdee699f1f13056e84462faf6dccf4817561293fb28bef0',
+        'com.android.tools.external.com-intellij:kotlin-compiler:27.2.2:kotlin-compiler-27.2.2.jar:71bd460199ce7293ecc54b91a115319c1e4b585eca5a5b3699f6a406f29e626c',
+        'com.android.tools.external.org-jetbrains:uast:27.2.2:uast-27.2.2.jar:efa59302fd433015e993143530cecb456b63d10d0b89bd1d3b1a016904338a65',
+        'com.android.tools.layoutlib:layoutlib-api:27.2.2:layoutlib-api-27.2.2.jar:f0901f2295d814e82ad95850ea2103dd89d8489e01727fafa55ccccc0dccd163',
+        'com.android.tools.lint:lint-api:27.2.2:lint-api-27.2.2.jar:1ecb5959c8e624ee49cdf9178de67bb0e823b4382ed253410eb36afe5c458b05',
+        'com.android.tools.lint:lint-checks:27.2.2:lint-checks-27.2.2.jar:989e545a6b5e398e63a9f3608da02d6111f2241faec1baa0a3b4492cb03aeaf2',
+        'com.android.tools.lint:lint-gradle-api:27.2.2:lint-gradle-api-27.2.2.jar:2be9c69d6fbbfb012ff6521fdfcb22eb7cfaa57d108e07bb1d4143dae9c1b433',
+        'com.android.tools.lint:lint-gradle:27.2.2:lint-gradle-27.2.2.jar:742dedd5ccb459a245a35bf4fa16dfecc762da1a6b1741332cfe5228e812301a',
+        'com.android.tools.lint:lint-model:27.2.2:lint-model-27.2.2.jar:ee31012586462bea2d591b6175934e5f29b6f781a78fda50f79387972364b9ab',
+        'com.android.tools.lint:lint:27.2.2:lint-27.2.2.jar:7247016af7fba8cabee6ae887515b144f5a2ff7823422654daf23be9202f8fb1',
+        'com.android.tools:annotations:27.2.2:annotations-27.2.2.jar:9375fb2df5c0cf1b46fef9e65b3a27ac88925ccf90054b19ae0ca0adc7036fe1',
+        'com.android.tools:common:27.2.2:common-27.2.2.jar:a76f4e10cad39bed317be031fee915d280aa8bc11616c58ab94e051b1e38769d',
+        'com.android.tools:dvlib:27.2.2:dvlib-27.2.2.jar:9931c6b57460b5f8cc2613ca5ff8596aa089a67655ace13d173f90538ecb4301',
+        'com.android.tools:repository:27.2.2:repository-27.2.2.jar:ac5f9b19dc5d9d08e80b57da76059f5760ca76c221e40ffd4bf43d7b13991674',
+        'com.android.tools:sdk-common:27.2.2:sdk-common-27.2.2.jar:b147acc13850808d61fc391ccfeeebdf90841b461a7042acb2d92e466da8e674',
+        'com.android.tools:sdklib:27.2.2:sdklib-27.2.2.jar:fae0bafbe8b4f546cf64986a22b7d8ed108d45519366ff22f0170a9cf3ea7f34',
+        'com.android:signflinger:4.2.2:signflinger-4.2.2.jar:4d7aafd9666707b483b1ad2c466824287cf2e379dda1d204dd3b7e453ffcf760',
+        'com.android:zipflinger:4.2.2:zipflinger-4.2.2.jar:8e4677086c9a8f4a67374a4edc31db7e481f0d9b85907263c51ca72452c23a93',
+        'com.google.code.findbugs:annotations:3.0.1:annotations-3.0.1.jar:6b47ff0a6de0ce17cbedc3abb0828ca5bce3009d53ea47b3723ff023c4742f79',
         'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
-        'com.google.code.gson:gson:2.8.5:gson-2.8.5.jar:233a0149fc365c9f6edbd683cfe266b19bdc773be98eabdaf6b3c924b48e7d81',
+        'com.google.code.gson:gson:2.8.6:gson-2.8.6.jar:c8fb4839054d280b3033f800d1f5a97de2f028eb8ba2eb458ad287e536f3f25f',
         'com.google.dagger:dagger-compiler:2.24:dagger-compiler-2.24.jar:3c5afb955fb188da485cb2c048eff37dce0e1530b9780a0f2f7187d16d1ccc1f',
         'com.google.dagger:dagger-producers:2.24:dagger-producers-2.24.jar:f10f45b95191954d5d6b043fca9e62fb621d21bf70634b8f8476c7988b504c3a',
         'com.google.dagger:dagger-spi:2.24:dagger-spi-2.24.jar:c038445d14dbcb4054e61bf49e05009edf26fce4fdc7ec1a9db544784f68e718',
@@ -53,26 +54,28 @@ dependencyVerification {
         'com.squareup:javapoet:1.11.1:javapoet-1.11.1.jar:9cbf2107be499ec6e95afd36b58e3ca122a24166cdd375732e51267d64058e90',
         'com.squareup:javawriter:2.5.0:javawriter-2.5.0.jar:fcfb09fb0ea0aa97d3cfe7ea792398081348e468f126b3603cb3803f240197f0',
         'com.sun.activation:javax.activation:1.2.0:javax.activation-1.2.0.jar:993302b16cd7056f21e779cc577d175a810bb4900ef73cd8fbf2b50f928ba9ce',
-        'com.sun.istack:istack-commons-runtime:3.0.7:istack-commons-runtime-3.0.7.jar:6443e10ba2e259fb821d9b6becf10db5316285fc30c53cec9d7b19a3877e7fdf',
-        'com.sun.xml.fastinfoset:FastInfoset:1.2.15:FastInfoset-1.2.15.jar:785861db11ca1bd0d1956682b974ad73eb19cd3e01a4b3fa82d62eca97210aec',
+        'com.sun.istack:istack-commons-runtime:3.0.8:istack-commons-runtime-3.0.8.jar:4ffabb06be454a05e4398e20c77fa2b6308d4b88dfbef7ca30a76b5b7d5505ef',
+        'com.sun.xml.fastinfoset:FastInfoset:1.2.16:FastInfoset-1.2.16.jar:056f3a1e144409f21ed16afc26805f58e9a21f3fce1543c42d400719d250c511',
         'commons-codec:commons-codec:1.10:commons-codec-1.10.jar:4241dfa94e711d435f29a4604a3e2de5c4aa3c165e23bd066be6fc1fc4309569',
         'commons-logging:commons-logging:1.2:commons-logging-1.2.jar:daddea1ea0be0f56978ab3006b8ac92834afeefbd9b7e4e6316fca57df0fa636',
-        'it.unimi.dsi:fastutil:7.2.0:fastutil-7.2.0.jar:74fa208043740642f7e6eb09faba15965218ad2f50ce3020efb100136e4b591c',
-        'javax.activation:javax.activation-api:1.2.0:javax.activation-api-1.2.0.jar:43fdef0b5b6ceb31b0424b208b930c74ab58fac2ceeb7b3f6fd3aeb8b5ca4393',
+        'it.unimi.dsi:fastutil:8.4.0:fastutil-8.4.0.jar:2ad2824a4a0a0eb836b52ee2fc84ba2134f44bce7bfa54015ae3f31c710a3071',
+        'jakarta.activation:jakarta.activation-api:1.2.1:jakarta.activation-api-1.2.1.jar:8b0a0f52fa8b05c5431921a063ed866efaa41dadf2e3a7ee3e1961f2b0d9645b',
+        'jakarta.xml.bind:jakarta.xml.bind-api:2.3.2:jakarta.xml.bind-api-2.3.2.jar:69156304079bdeed9fc0ae3b39389f19b3cc4ba4443bc80508995394ead742ea',
         'javax.annotation:jsr250-api:1.0:jsr250-api-1.0.jar:a1a922d0d9b6d183ed3800dfac01d1e1eb159f0e8c6f94736931c1def54a941f',
         'javax.inject:javax.inject:1:javax.inject-1.jar:91c77044a50c481636c32d916fd89c9118a72195390452c81065080f957de7ff',
-        'javax.xml.bind:jaxb-api:2.3.1:jaxb-api-2.3.1.jar:88b955a0df57880a26a74708bc34f74dcaf8ebf4e78843a28b50eae945732b06',
         'junit:junit:4.12:junit-4.12.jar:59721f0805e223d84b90677887d9ff567dc534d7c502ca903c0c2b17f05c116a',
+        'net.bytebuddy:byte-buddy:1.9.12:byte-buddy-1.9.12.jar:3688c3d434bebc3edc5516296a2ed0f47b65e451071b4afecad84f902f0efc11',
+        'net.java.dev.jna:jna-platform:5.6.0:jna-platform-5.6.0.jar:9ecea8bf2b1b39963939d18b70464eef60c508fed8820f9dcaba0c35518eabf7',
+        'net.java.dev.jna:jna:5.6.0:jna-5.6.0.jar:5557e235a8aa2f9766d5dc609d67948f2a8832c2d796cea9ef1d6cbe0b3b7eaf',
+        'net.jcip:jcip-annotations:1.0:jcip-annotations-1.0.jar:be5805392060c71474bf6c9a67a099471274d30b83eef84bfc4e0889a4f1dcc0',
         'net.ltgt.gradle.incap:incap:0.2:incap-0.2.jar:b625b9806b0f1e4bc7a2e3457119488de3cd57ea20feedd513db070a573a4ffd',
         'net.sf.jopt-simple:jopt-simple:4.9:jopt-simple-4.9.jar:26c5856e954b5f864db76f13b86919b59c6eecf9fd930b96baa8884626baf2f5',
         'net.sf.kxml:kxml2:2.3.0:kxml2-2.3.0.jar:f264dd9f79a1fde10ce5ecc53221eff24be4c9331c830b7d52f2f08a7b633de2',
-        'org.apache.ant:ant-launcher:1.9.4:ant-launcher-1.9.4.jar:7bccea20b41801ca17bcbc909a78c835d0f443f12d639c77bd6ae3d05861608d',
-        'org.apache.ant:ant:1.9.4:ant-1.9.4.jar:649ae0730251de07b8913f49286d46bba7b92d47c5f332610aa426c4f02161d8',
+        'org.apache-extras.beanshell:bsh:2.0b6:bsh-2.0b6.jar:a17955976070c0573235ee662f2794a78082758b61accffce8d3f8aedcd91047',
         'org.apache.commons:commons-compress:1.12:commons-compress-1.12.jar:2c1542faf343185b7cab9c3d55c8ae5471d6d095d3887a4adefdbdf2984dc0b6',
         'org.apache.httpcomponents:httpclient:4.5.6:httpclient-4.5.6.jar:c03f813195e7a80e3608d0ddd8da80b21696a4c92a6a2298865bf149071551c7',
         'org.apache.httpcomponents:httpcore:4.4.10:httpcore-4.4.10.jar:78ba1096561957db1b55200a159b648876430342d15d461277e62360da19f6fd',
         'org.apache.httpcomponents:httpmime:4.5.6:httpmime-4.5.6.jar:0b2b1102c18d3c7e05a77214b9b7501a6f6056174ae5604e0e256776eda7553e',
-        'org.beanshell:bsh:1.3.0:bsh-1.3.0.jar:9b04edc75d19db54f1b4e8b5355e9364384c6cf71eb0a1b9724c159d779879f8',
         'org.bouncycastle:bcpkix-jdk15on:1.56:bcpkix-jdk15on-1.56.jar:7043dee4e9e7175e93e0b36f45b1ec1ecb893c5f755667e8b916eb8dd201c6ca',
         'org.bouncycastle:bcprov-jdk15on:1.56:bcprov-jdk15on-1.56.jar:963e1ee14f808ffb99897d848ddcdb28fa91ddda867eb18d303e82728f878349',
         'org.briarproject:obfs4proxy-android:0.0.12-dev-40245c4a:obfs4proxy-android-0.0.12-dev-40245c4a.zip:8ab05a8f8391be2cb5ab2b665c281a06d9e3a756bd0f95a40a36ca927866ea82',
@@ -83,28 +86,32 @@ dependencyVerification {
         'org.codehaus.groovy:groovy-all:2.4.15:groovy-all-2.4.15.jar:51d6c4e71782e85674239189499854359d380fb75e1a703756e3aaa5b98a5af0',
         'org.codehaus.mojo:animal-sniffer-annotations:1.17:animal-sniffer-annotations-1.17.jar:92654f493ecfec52082e76354f0ebf87648dc3d5cec2e3c3cdb947c016747a53',
         'org.codehaus.mojo:animal-sniffer-annotations:1.18:animal-sniffer-annotations-1.18.jar:47f05852b48ee9baefef80fa3d8cea60efa4753c0013121dd7fe5eef2e5c729d',
-        'org.glassfish.jaxb:jaxb-runtime:2.3.1:jaxb-runtime-2.3.1.jar:45fecfa5c8217ce1f3652ab95179790ec8cc0dec0384bca51cbeb94a293d9f2f',
-        'org.glassfish.jaxb:txw2:2.3.1:txw2-2.3.1.jar:34975dde1c6920f1a39791142235689bc3cd357e24d05edd8ff93b885bd68d60',
-        'org.hamcrest:hamcrest-core:1.3:hamcrest-core-1.3.jar:66fdef91e9739348df7a096aa384a5685f4e875584cce89386a7a47251c4d8e9',
-        'org.hamcrest:hamcrest-library:1.3:hamcrest-library-1.3.jar:711d64522f9ec410983bd310934296da134be4254a125080a0416ec178dfad1c',
-        'org.jetbrains.kotlin:kotlin-reflect:1.3.72:kotlin-reflect-1.3.72.jar:a188d9367de1c4ee9479db630985c0597b20709c83161b1430d24edb27e38c40',
-        'org.jetbrains.kotlin:kotlin-stdlib-common:1.3.72:kotlin-stdlib-common-1.3.72.jar:5e7d1552863e480c1628b1cc39ce230ef829f5b7230106215a05acda5172203a',
-        'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.72:kotlin-stdlib-jdk7-1.3.72.jar:40566c0c08d414b9413ba556ff7f8a0b04b98b9f0f424d122dd2088510efccc4',
-        'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72:kotlin-stdlib-jdk8-1.3.72.jar:133da70cfc07b56094282eac5c59bccd59f167ee2ead22e5282876d8bc10bf95',
-        'org.jetbrains.kotlin:kotlin-stdlib:1.3.72:kotlin-stdlib-1.3.72.jar:3856a7349ebacd6d1be6802b2fed9c4dc2c5a564ea92b6b945ac988243d4b16b',
-        'org.jetbrains.trove4j:trove4j:20160824:trove4j-20160824.jar:1917871c8deb468307a584680c87a44572f5a8b0b98c6d397fc0f5f86596dbe7',
+        'org.glassfish.jaxb:jaxb-runtime:2.3.2:jaxb-runtime-2.3.2.jar:e6e0a1e89fb6ff786279e6a0082d5cef52dc2ebe67053d041800737652b4fd1b',
+        'org.glassfish.jaxb:txw2:2.3.2:txw2-2.3.2.jar:4a6a9f483388d461b81aa9a28c685b8b74c0597993bf1884b04eddbca95f48fe',
+        'org.hamcrest:hamcrest-core:2.1:hamcrest-core-2.1.jar:e09109e54a289d88506b9bfec987ddd199f4217c9464132668351b9a4f00bee9',
+        'org.hamcrest:hamcrest-library:2.1:hamcrest-library-2.1.jar:b7e2b6895b3b679f0e47b6380fda391b225e9b78505db9d8bdde8d3cc8d52a21',
+        'org.hamcrest:hamcrest:2.1:hamcrest-2.1.jar:ba93b2e3a562322ba432f0a1b53addcc55cb188253319a020ed77f824e692050',
+        'org.jetbrains.intellij.deps:trove4j:1.0.20181211:trove4j-1.0.20181211.jar:affb7c85a3c87bdcf69ff1dbb84de11f63dc931293934bc08cd7ab18de083601',
+        'org.jetbrains.kotlin:kotlin-reflect:1.4.31:kotlin-reflect-1.4.31.jar:91fad0b42974a7d5811e30a61f05706e176b144235717c6de7e81e3a781028f2',
+        'org.jetbrains.kotlin:kotlin-stdlib-common:1.4.31:kotlin-stdlib-common-1.4.31.jar:57962f44371a746b678218a0802a8712c6255206de9a69ede215e3aa4b044708',
+        'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.31:kotlin-stdlib-jdk7-1.4.31.jar:1f966e54e86cf4b7d7014afdce04e0f3ee4625084cda3494edccc7b84af52664',
+        'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.4.31:kotlin-stdlib-jdk8-1.4.31.jar:b2f8364435ebcb0106ff9d4415a11ffdef8ec7786ee6e5ed465a01556cbd1683',
+        'org.jetbrains.kotlin:kotlin-stdlib:1.4.31:kotlin-stdlib-1.4.31.jar:76a599d88b167e8ac90879b6daa722c6ad3452ba714c9aba19bd196544b97f1c',
         'org.jetbrains:annotations:13.0:annotations-13.0.jar:ace2a10dc8e2d5fd34925ecac03e4988b2c0f851650c94b8cef49ba1bd111478',
-        'org.jmock:jmock-junit4:2.8.2:jmock-junit4-2.8.2.jar:f7ee4df4f7bd7b7f1cafad3b99eb74d579f109d5992ff625347352edb55e674c',
-        'org.jmock:jmock-legacy:2.8.2:jmock-legacy-2.8.2.jar:f2b985a5c08a9edb7f37612330c058809da3f6a6d63ce792426ebf8ff0d6d31b',
-        'org.jmock:jmock-testjar:2.8.2:jmock-testjar-2.8.2.jar:8900860f72c474e027cf97fe78dcbf154a1aa7fc62b6845c5fb4e4f3c7bc8760',
-        'org.jmock:jmock:2.8.2:jmock-2.8.2.jar:6c73cb4a2e6dbfb61fd99c9a768539c170ab6568e57846bd60dbf19596b65b16',
-        'org.jvnet.staxex:stax-ex:1.8:stax-ex-1.8.jar:95b05d9590af4154c6513b9c5dc1fb2e55b539972ba0a9ef28e9a0c01d83ad77',
-        'org.objenesis:objenesis:2.1:objenesis-2.1.jar:c74330cc6b806c804fd37e74487b4fe5d7c2750c5e15fbc6efa13bdee1bdef80',
+        'org.jmock:jmock-imposters:2.12.0:jmock-imposters-2.12.0.jar:3b836269745a137c9b2347e8d7c2104845b126ef04f012d6bfd94f1a7dea7b09',
+        'org.jmock:jmock-junit4:2.12.0:jmock-junit4-2.12.0.jar:3233062fc889637c151a24f1ee086bad04321ab7d8264fef279daff0fa27205b',
+        'org.jmock:jmock-legacy:2.12.0:jmock-legacy-2.12.0.jar:dea3a9cca653d082e2fe7e40232e982fe03a9984c7d67ceff24f3e03fe580dcd',
+        'org.jmock:jmock-testjar:2.12.0:jmock-testjar-2.12.0.jar:efefbcf6cd294d0e29f0c46eb2a3380d4ca4e1763ff719c69e2f2ac62f564a04',
+        'org.jmock:jmock:2.12.0:jmock-2.12.0.jar:266d07314c0cd343c46ff8a55601272de8cf406807caf55e6f313295f83d10be',
+        'org.jvnet.staxex:stax-ex:1.8.1:stax-ex-1.8.1.jar:20522549056e9e50aa35ef0b445a2e47a53d06be0b0a9467d704e2483ffb049a',
+        'org.objenesis:objenesis:3.0.1:objenesis-3.0.1.jar:7a8ff780b9ff48415d7c705f60030b0acaa616e7f823c98eede3b63508d4e984',
         'org.ow2.asm:asm-analysis:7.0:asm-analysis-7.0.jar:e981f8f650c4d900bb033650b18e122fa6b161eadd5f88978d08751f72ee8474',
         'org.ow2.asm:asm-commons:7.0:asm-commons-7.0.jar:fed348ef05958e3e846a3ac074a12af5f7936ef3d21ce44a62c4fa08a771927d',
         'org.ow2.asm:asm-tree:7.0:asm-tree-7.0.jar:cfd7a0874f9de36a999c127feeadfbfe6e04d4a71ee954d7af3d853f0be48a6c',
         'org.ow2.asm:asm-util:7.0:asm-util-7.0.jar:75fbbca440ef463f41c2b0ab1a80abe67e910ac486da60a7863cbcb5bae7e145',
-        'org.ow2.asm:asm:5.0.4:asm-5.0.4.jar:896618ed8ae62702521a78bc7be42b7c491a08e6920a15f89a3ecdec31e9a220',
         'org.ow2.asm:asm:7.0:asm-7.0.jar:b88ef66468b3c978ad0c97fd6e90979e56155b4ac69089ba7a44e9aa7ffe9acf',
+        'org.ow2.asm:asm:7.1:asm-7.1.jar:4ab2fa2b6d2cc9ccb1eaa05ea329c407b47b13ed2915f62f8c4b8cc96258d4de',
+        'xerces:xercesImpl:2.12.0:xercesImpl-2.12.0.jar:b50d3a4ca502faa4d1c838acb8aa9480446953421f7327e338c5dda3da5e76d0',
+        'xml-apis:xml-apis:1.4.01:xml-apis-1.4.01.jar:a840968176645684bb01aed376e067ab39614885f9eee44abe35a5f20ebe7fad',
     ]
 }

bramble-api/build.gradle

@@ -10,10 +10,9 @@ dependencies {
 	implementation "com.google.dagger:dagger:2.24"
 	implementation 'com.google.code.findbugs:jsr305:3.0.2'
 
-	testImplementation 'junit:junit:4.12'
-	testImplementation "org.jmock:jmock:2.8.2"
-	testImplementation "org.jmock:jmock-junit4:2.8.2"
-	testImplementation "org.jmock:jmock-legacy:2.8.2"
+	testImplementation "junit:junit:$junit_version"
+	testImplementation "org.jmock:jmock:$jmock_version"
+	testImplementation "org.jmock:jmock-junit4:$jmock_version"
 
 	signature 'org.codehaus.mojo.signature:java16:1.1@signature'
 }

bramble-api/src/main/java/org/briarproject/bramble/api/contact/ContactManager.java

@@ -214,13 +214,14 @@ public interface ContactManager {
 	 * Sets the contact's handshake public key
 	 */
 	void setHandshakePublicKey(Transaction txn, ContactId c,
-			PublicKey handshakePublicKey) throws DbException;
+			PublicKey handshakePublicKey) throws DbException,
+			GeneralSecurityException;
 
 	/**
 	 * Sets the contact's handshake public key
 	 */
 	void setHandshakePublicKey(ContactId c, PublicKey handshakePublicKey)
-			throws DbException;
+			throws DbException, GeneralSecurityException;
 
 	/**
 	 * Returns true if a contact with this {@code remoteAuthorId} belongs to

bramble-api/witness.gradle

@@ -1,24 +1,27 @@
 dependencyVerification {
     verify = [
-        'cglib:cglib:3.2.0:cglib-3.2.0.jar:adb13bab79712ad6bdf1bd59f2a3918018a8016e722e8a357065afb9e6690861',
+        'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
+        'com.google.code.findbugs:annotations:3.0.1:annotations-3.0.1.jar:6b47ff0a6de0ce17cbedc3abb0828ca5bce3009d53ea47b3723ff023c4742f79',
         'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
         'com.google.dagger:dagger:2.24:dagger-2.24.jar:550a6e46a6dfcdf1d764887b6090cea94f783327e50e5c73754f18facfc70b64',
         'javax.inject:javax.inject:1:javax.inject-1.jar:91c77044a50c481636c32d916fd89c9118a72195390452c81065080f957de7ff',
         'junit:junit:4.12:junit-4.12.jar:59721f0805e223d84b90677887d9ff567dc534d7c502ca903c0c2b17f05c116a',
-        'org.apache.ant:ant-launcher:1.9.4:ant-launcher-1.9.4.jar:7bccea20b41801ca17bcbc909a78c835d0f443f12d639c77bd6ae3d05861608d',
-        'org.apache.ant:ant:1.9.4:ant-1.9.4.jar:649ae0730251de07b8913f49286d46bba7b92d47c5f332610aa426c4f02161d8',
-        'org.beanshell:bsh:1.3.0:bsh-1.3.0.jar:9b04edc75d19db54f1b4e8b5355e9364384c6cf71eb0a1b9724c159d779879f8',
+        'net.bytebuddy:byte-buddy:1.9.12:byte-buddy-1.9.12.jar:3688c3d434bebc3edc5516296a2ed0f47b65e451071b4afecad84f902f0efc11',
+        'net.jcip:jcip-annotations:1.0:jcip-annotations-1.0.jar:be5805392060c71474bf6c9a67a099471274d30b83eef84bfc4e0889a4f1dcc0',
+        'org.apache-extras.beanshell:bsh:2.0b6:bsh-2.0b6.jar:a17955976070c0573235ee662f2794a78082758b61accffce8d3f8aedcd91047',
         'org.codehaus.mojo.signature:java16:1.1:java16-1.1.signature:53799223a2c98dba2d0add810bed76315460df285c69e4f397ae6098f87dd619',
         'org.codehaus.mojo:animal-sniffer-ant-tasks:1.16:animal-sniffer-ant-tasks-1.16.jar:890040976fbe2d584619a6a61b1fd2e925b3b5eb342a85eb2762c467c0d64e90',
         'org.codehaus.mojo:animal-sniffer:1.16:animal-sniffer-1.16.jar:72be8bcc226ba43b937c722a08a07852bfa1b11400089265d5df0ee7b38b1d52',
-        'org.hamcrest:hamcrest-core:1.3:hamcrest-core-1.3.jar:66fdef91e9739348df7a096aa384a5685f4e875584cce89386a7a47251c4d8e9',
-        'org.hamcrest:hamcrest-library:1.3:hamcrest-library-1.3.jar:711d64522f9ec410983bd310934296da134be4254a125080a0416ec178dfad1c',
-        'org.jmock:jmock-junit4:2.8.2:jmock-junit4-2.8.2.jar:f7ee4df4f7bd7b7f1cafad3b99eb74d579f109d5992ff625347352edb55e674c',
-        'org.jmock:jmock-legacy:2.8.2:jmock-legacy-2.8.2.jar:f2b985a5c08a9edb7f37612330c058809da3f6a6d63ce792426ebf8ff0d6d31b',
-        'org.jmock:jmock-testjar:2.8.2:jmock-testjar-2.8.2.jar:8900860f72c474e027cf97fe78dcbf154a1aa7fc62b6845c5fb4e4f3c7bc8760',
-        'org.jmock:jmock:2.8.2:jmock-2.8.2.jar:6c73cb4a2e6dbfb61fd99c9a768539c170ab6568e57846bd60dbf19596b65b16',
-        'org.objenesis:objenesis:2.1:objenesis-2.1.jar:c74330cc6b806c804fd37e74487b4fe5d7c2750c5e15fbc6efa13bdee1bdef80',
+        'org.hamcrest:hamcrest-core:2.1:hamcrest-core-2.1.jar:e09109e54a289d88506b9bfec987ddd199f4217c9464132668351b9a4f00bee9',
+        'org.hamcrest:hamcrest-library:2.1:hamcrest-library-2.1.jar:b7e2b6895b3b679f0e47b6380fda391b225e9b78505db9d8bdde8d3cc8d52a21',
+        'org.hamcrest:hamcrest:2.1:hamcrest-2.1.jar:ba93b2e3a562322ba432f0a1b53addcc55cb188253319a020ed77f824e692050',
+        'org.jmock:jmock-imposters:2.12.0:jmock-imposters-2.12.0.jar:3b836269745a137c9b2347e8d7c2104845b126ef04f012d6bfd94f1a7dea7b09',
+        'org.jmock:jmock-junit4:2.12.0:jmock-junit4-2.12.0.jar:3233062fc889637c151a24f1ee086bad04321ab7d8264fef279daff0fa27205b',
+        'org.jmock:jmock-legacy:2.12.0:jmock-legacy-2.12.0.jar:dea3a9cca653d082e2fe7e40232e982fe03a9984c7d67ceff24f3e03fe580dcd',
+        'org.jmock:jmock-testjar:2.12.0:jmock-testjar-2.12.0.jar:efefbcf6cd294d0e29f0c46eb2a3380d4ca4e1763ff719c69e2f2ac62f564a04',
+        'org.jmock:jmock:2.12.0:jmock-2.12.0.jar:266d07314c0cd343c46ff8a55601272de8cf406807caf55e6f313295f83d10be',
+        'org.objenesis:objenesis:3.0.1:objenesis-3.0.1.jar:7a8ff780b9ff48415d7c705f60030b0acaa616e7f823c98eede3b63508d4e984',
         'org.ow2.asm:asm-all:5.2:asm-all-5.2.jar:7fbffbc1db3422e2101689fd88df8384b15817b52b9b2b267b9f6d2511dc198d',
-        'org.ow2.asm:asm:5.0.4:asm-5.0.4.jar:896618ed8ae62702521a78bc7be42b7c491a08e6920a15f89a3ecdec31e9a220',
+        'org.ow2.asm:asm:7.1:asm-7.1.jar:4ab2fa2b6d2cc9ccb1eaa05ea329c407b47b13ed2915f62f8c4b8cc96258d4de',
     ]
 }

bramble-core/build.gradle

@@ -10,7 +10,7 @@ apply from: '../dagger.gradle'
 
 dependencies {
 	implementation project(path: ':bramble-api', configuration: 'default')
-	implementation 'com.madgag.spongycastle:core:1.58.0.0'
+	implementation 'org.bouncycastle:bcprov-jdk15on:1.65'
 	implementation 'com.h2database:h2:1.4.192' // The last version that supports Java 1.6
 	implementation 'org.bitlet:weupnp:0.1.4'
 	implementation 'net.i2p.crypto:eddsa:0.2.0'
@@ -21,16 +21,25 @@ dependencies {
 
 	testImplementation project(path: ':bramble-api', configuration: 'testOutput')
 	testImplementation 'org.hsqldb:hsqldb:2.3.5' // The last version that supports Java 1.6
-	testImplementation 'junit:junit:4.12'
-	testImplementation "org.jmock:jmock:2.8.2"
-	testImplementation "org.jmock:jmock-junit4:2.8.2"
-	testImplementation "org.jmock:jmock-legacy:2.8.2"
+	testImplementation 'net.jodah:concurrentunit:0.4.2'
+	testImplementation "junit:junit:$junit_version"
+	testImplementation "org.jmock:jmock:$jmock_version"
+	testImplementation "org.jmock:jmock-junit4:$jmock_version"
+	testImplementation "org.jmock:jmock-imposters:$jmock_version"
 
 	testAnnotationProcessor 'com.google.dagger:dagger-compiler:2.24'
 
 	signature 'org.codehaus.mojo.signature:java16:1.1@signature'
 }
 
+animalsniffer {
+	// Allow requireNonNull: Android desugaring rewrites it (so it's safe for us to use),
+	// and it gets used when passing method references instead of lambdas with Java 11.
+	// Note that this line allows *all* methods from java.util.Objects.
+	// That's the best that we can do with the configuration options that Animal Sniffer offers.
+	ignore 'java.util.Objects'
+}
+
 // needed to make test output available to bramble-java
 configurations {
 	testOutput.extendsFrom(testCompile)

bramble-core/src/main/java/org/briarproject/bramble/contact/ContactManagerImpl.java

@@ -249,17 +249,19 @@ class ContactManagerImpl implements ContactManager, EventListener {
 
 	@Override
 	public void setHandshakePublicKey(Transaction txn, ContactId c,
-			PublicKey handshakePublicKey) throws DbException {
+			PublicKey handshakePublicKey) throws DbException, GeneralSecurityException {
 		if (handshakePublicKey.getKeyType() !=
 				CryptoConstants.KEY_TYPE_AGREEMENT) {
 			throw new IllegalArgumentException();
 		}
 		db.setHandshakePublicKey(txn, c, handshakePublicKey);
+		KeyPair ourKeyPair = identityManager.getHandshakeKeys(txn);
+		keyManager.addContact(txn, c, handshakePublicKey, ourKeyPair);
 	}
 
 	@Override
 	public void setHandshakePublicKey(ContactId c, PublicKey handshakePublicKey)
-			throws DbException {
+			throws DbException, GeneralSecurityException {
 		db.transaction(false,
 				txn -> setHandshakePublicKey(txn, c, handshakePublicKey));
 	}

bramble-core/src/main/java/org/briarproject/bramble/crypto/CryptoComponentImpl.java

@@ -21,9 +21,9 @@ import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.system.SecureRandomProvider;
 import org.briarproject.bramble.util.ByteUtils;
 import org.briarproject.bramble.util.StringUtils;
-import org.spongycastle.crypto.CryptoException;
-import org.spongycastle.crypto.Digest;
-import org.spongycastle.crypto.digests.Blake2bDigest;
+import org.bouncycastle.crypto.CryptoException;
+import org.bouncycastle.crypto.Digest;
+import org.bouncycastle.crypto.digests.Blake2bDigest;
 import org.whispersystems.curve25519.Curve25519;
 import org.whispersystems.curve25519.Curve25519KeyPair;
 

bramble-core/src/main/java/org/briarproject/bramble/crypto/MessageEncrypter.java

@@ -6,33 +6,33 @@ import org.briarproject.bramble.api.crypto.PrivateKey;
 import org.briarproject.bramble.api.crypto.PublicKey;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.util.StringUtils;
-import org.spongycastle.asn1.teletrust.TeleTrusTNamedCurves;
-import org.spongycastle.asn1.x9.X9ECParameters;
-import org.spongycastle.crypto.AsymmetricCipherKeyPair;
-import org.spongycastle.crypto.BasicAgreement;
-import org.spongycastle.crypto.BlockCipher;
-import org.spongycastle.crypto.CipherParameters;
-import org.spongycastle.crypto.CryptoException;
-import org.spongycastle.crypto.DerivationFunction;
-import org.spongycastle.crypto.KeyEncoder;
-import org.spongycastle.crypto.Mac;
-import org.spongycastle.crypto.agreement.ECDHCBasicAgreement;
-import org.spongycastle.crypto.digests.SHA256Digest;
-import org.spongycastle.crypto.engines.AESLightEngine;
-import org.spongycastle.crypto.engines.IESEngine;
-import org.spongycastle.crypto.generators.ECKeyPairGenerator;
-import org.spongycastle.crypto.generators.EphemeralKeyPairGenerator;
-import org.spongycastle.crypto.generators.KDF2BytesGenerator;
-import org.spongycastle.crypto.macs.HMac;
-import org.spongycastle.crypto.modes.CBCBlockCipher;
-import org.spongycastle.crypto.paddings.PaddedBufferedBlockCipher;
-import org.spongycastle.crypto.params.AsymmetricKeyParameter;
-import org.spongycastle.crypto.params.ECDomainParameters;
-import org.spongycastle.crypto.params.ECKeyGenerationParameters;
-import org.spongycastle.crypto.params.ECPrivateKeyParameters;
-import org.spongycastle.crypto.params.ECPublicKeyParameters;
-import org.spongycastle.crypto.params.IESWithCipherParameters;
-import org.spongycastle.crypto.parsers.ECIESPublicKeyParser;
+import org.bouncycastle.asn1.teletrust.TeleTrusTNamedCurves;
+import org.bouncycastle.asn1.x9.X9ECParameters;
+import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
+import org.bouncycastle.crypto.BasicAgreement;
+import org.bouncycastle.crypto.BlockCipher;
+import org.bouncycastle.crypto.CipherParameters;
+import org.bouncycastle.crypto.CryptoException;
+import org.bouncycastle.crypto.DerivationFunction;
+import org.bouncycastle.crypto.KeyEncoder;
+import org.bouncycastle.crypto.Mac;
+import org.bouncycastle.crypto.agreement.ECDHCBasicAgreement;
+import org.bouncycastle.crypto.digests.SHA256Digest;
+import org.bouncycastle.crypto.engines.AESLightEngine;
+import org.bouncycastle.crypto.engines.IESEngine;
+import org.bouncycastle.crypto.generators.ECKeyPairGenerator;
+import org.bouncycastle.crypto.generators.EphemeralKeyPairGenerator;
+import org.bouncycastle.crypto.generators.KDF2BytesGenerator;
+import org.bouncycastle.crypto.macs.HMac;
+import org.bouncycastle.crypto.modes.CBCBlockCipher;
+import org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher;
+import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
+import org.bouncycastle.crypto.params.ECDomainParameters;
+import org.bouncycastle.crypto.params.ECKeyGenerationParameters;
+import org.bouncycastle.crypto.params.ECPrivateKeyParameters;
+import org.bouncycastle.crypto.params.ECPublicKeyParameters;
+import org.bouncycastle.crypto.params.IESWithCipherParameters;
+import org.bouncycastle.crypto.parsers.ECIESPublicKeyParser;
 
 import java.io.FileInputStream;
 import java.io.FileOutputStream;

bramble-core/src/main/java/org/briarproject/bramble/crypto/ScryptKdf.java

@@ -3,7 +3,7 @@ package org.briarproject.bramble.crypto;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.system.Clock;
 import org.briarproject.bramble.util.StringUtils;
-import org.spongycastle.crypto.generators.SCrypt;
+import org.bouncycastle.crypto.generators.SCrypt;
 
 import java.util.logging.Logger;
 

bramble-core/src/main/java/org/briarproject/bramble/crypto/Sec1KeyParser.java

@@ -4,11 +4,11 @@ import org.briarproject.bramble.api.crypto.KeyParser;
 import org.briarproject.bramble.api.crypto.PrivateKey;
 import org.briarproject.bramble.api.crypto.PublicKey;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.spongycastle.crypto.params.ECDomainParameters;
-import org.spongycastle.crypto.params.ECPrivateKeyParameters;
-import org.spongycastle.crypto.params.ECPublicKeyParameters;
-import org.spongycastle.math.ec.ECCurve;
-import org.spongycastle.math.ec.ECPoint;
+import org.bouncycastle.crypto.params.ECDomainParameters;
+import org.bouncycastle.crypto.params.ECPrivateKeyParameters;
+import org.bouncycastle.crypto.params.ECPublicKeyParameters;
+import org.bouncycastle.math.ec.ECCurve;
+import org.bouncycastle.math.ec.ECPoint;
 
 import java.math.BigInteger;
 import java.security.GeneralSecurityException;

bramble-core/src/main/java/org/briarproject/bramble/crypto/Sec1PrivateKey.java

@@ -2,7 +2,7 @@ package org.briarproject.bramble.crypto;
 
 import org.briarproject.bramble.api.crypto.PrivateKey;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.spongycastle.crypto.params.ECPrivateKeyParameters;
+import org.bouncycastle.crypto.params.ECPrivateKeyParameters;
 
 import javax.annotation.concurrent.Immutable;
 

bramble-core/src/main/java/org/briarproject/bramble/crypto/Sec1PublicKey.java

@@ -2,7 +2,7 @@ package org.briarproject.bramble.crypto;
 
 import org.briarproject.bramble.api.crypto.PublicKey;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.spongycastle.crypto.params.ECPublicKeyParameters;
+import org.bouncycastle.crypto.params.ECPublicKeyParameters;
 
 import javax.annotation.concurrent.Immutable;
 

bramble-core/src/main/java/org/briarproject/bramble/crypto/TransportCryptoImpl.java

@@ -9,8 +9,8 @@ import org.briarproject.bramble.api.plugin.TransportId;
 import org.briarproject.bramble.api.transport.IncomingKeys;
 import org.briarproject.bramble.api.transport.OutgoingKeys;
 import org.briarproject.bramble.api.transport.TransportKeys;
-import org.spongycastle.crypto.Digest;
-import org.spongycastle.crypto.digests.Blake2bDigest;
+import org.bouncycastle.crypto.Digest;
+import org.bouncycastle.crypto.digests.Blake2bDigest;
 
 import java.security.GeneralSecurityException;
 

bramble-core/src/main/java/org/briarproject/bramble/crypto/XSalsa20Poly1305AuthenticatedCipher.java

@@ -3,12 +3,12 @@ package org.briarproject.bramble.crypto;
 import org.briarproject.bramble.api.crypto.AuthenticatedCipher;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.spongycastle.crypto.DataLengthException;
-import org.spongycastle.crypto.engines.XSalsa20Engine;
-import org.spongycastle.crypto.generators.Poly1305KeyGenerator;
-import org.spongycastle.crypto.macs.Poly1305;
-import org.spongycastle.crypto.params.KeyParameter;
-import org.spongycastle.crypto.params.ParametersWithIV;
+import org.bouncycastle.crypto.DataLengthException;
+import org.bouncycastle.crypto.engines.XSalsa20Engine;
+import org.bouncycastle.crypto.generators.Poly1305KeyGenerator;
+import org.bouncycastle.crypto.macs.Poly1305;
+import org.bouncycastle.crypto.params.KeyParameter;
+import org.bouncycastle.crypto.params.ParametersWithIV;
 
 import java.security.GeneralSecurityException;
 

bramble-core/src/main/java/org/briarproject/bramble/plugin/tor/TorRendezvousCryptoImpl.java

@@ -5,9 +5,9 @@ import net.i2p.crypto.eddsa.spec.EdDSANamedCurveTable;
 import net.i2p.crypto.eddsa.spec.EdDSAPrivateKeySpec;
 
 import org.briarproject.bramble.util.Base32;
-import org.spongycastle.crypto.Digest;
-import org.spongycastle.crypto.digests.SHA3Digest;
-import org.spongycastle.util.encoders.Base64;
+import org.bouncycastle.crypto.Digest;
+import org.bouncycastle.crypto.digests.SHA3Digest;
+import org.bouncycastle.util.encoders.Base64;
 
 import java.nio.charset.Charset;
 

bramble-core/src/main/java/org/briarproject/bramble/rendezvous/KeyMaterialSourceImpl.java

@@ -3,9 +3,9 @@ package org.briarproject.bramble.rendezvous;
 import org.briarproject.bramble.api.crypto.SecretKey;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.rendezvous.KeyMaterialSource;
-import org.spongycastle.crypto.engines.Salsa20Engine;
-import org.spongycastle.crypto.params.KeyParameter;
-import org.spongycastle.crypto.params.ParametersWithIV;
+import org.bouncycastle.crypto.engines.Salsa20Engine;
+import org.bouncycastle.crypto.params.KeyParameter;
+import org.bouncycastle.crypto.params.ParametersWithIV;
 
 import javax.annotation.concurrent.GuardedBy;
 import javax.annotation.concurrent.ThreadSafe;

bramble-core/src/test/java/org/briarproject/bramble/client/BdfMessageValidatorTest.java

@@ -13,7 +13,7 @@ import org.briarproject.bramble.api.sync.Message;
 import org.briarproject.bramble.api.sync.MessageContext;
 import org.briarproject.bramble.test.ValidatorTestCase;
 import org.jmock.Expectations;
-import org.jmock.lib.legacy.ClassImposteriser;
+import org.jmock.imposters.ByteBuddyClassImposteriser;
 import org.junit.Test;
 
 import static org.briarproject.bramble.api.transport.TransportConstants.MAX_CLOCK_DIFFERENCE;
@@ -38,7 +38,7 @@ public class BdfMessageValidatorTest extends ValidatorTestCase {
 	private final Metadata meta = new Metadata();
 
 	public BdfMessageValidatorTest() {
-		context.setImposteriser(ClassImposteriser.INSTANCE);
+		context.setImposteriser(ByteBuddyClassImposteriser.INSTANCE);
 	}
 
 	@Test(expected = InvalidMessageException.class)

bramble-core/src/test/java/org/briarproject/bramble/crypto/Blake2bDigestTest.java

@@ -3,7 +3,7 @@ package org.briarproject.bramble.crypto;
 import org.briarproject.bramble.test.BrambleTestCase;
 import org.briarproject.bramble.util.StringUtils;
 import org.junit.Test;
-import org.spongycastle.crypto.digests.Blake2bDigest;
+import org.bouncycastle.crypto.digests.Blake2bDigest;
 
 import java.util.Random;
 

bramble-core/src/test/java/org/briarproject/bramble/crypto/EllipticCurveMultiplicationTest.java

@@ -1,115 +0,0 @@
-package org.briarproject.bramble.crypto;
-
-import org.briarproject.bramble.test.BrambleTestCase;
-import org.junit.Test;
-import org.spongycastle.asn1.teletrust.TeleTrusTNamedCurves;
-import org.spongycastle.asn1.x9.X9ECParameters;
-import org.spongycastle.crypto.AsymmetricCipherKeyPair;
-import org.spongycastle.crypto.agreement.ECDHCBasicAgreement;
-import org.spongycastle.crypto.generators.ECKeyPairGenerator;
-import org.spongycastle.crypto.params.ECDomainParameters;
-import org.spongycastle.crypto.params.ECKeyGenerationParameters;
-import org.spongycastle.crypto.params.ECPrivateKeyParameters;
-import org.spongycastle.crypto.params.ECPublicKeyParameters;
-import org.spongycastle.math.ec.ECCurve;
-import org.spongycastle.math.ec.ECPoint;
-import org.spongycastle.math.ec.MontgomeryLadderMultiplier;
-
-import java.math.BigInteger;
-import java.security.SecureRandom;
-
-import static org.junit.Assert.assertEquals;
-
-public class EllipticCurveMultiplicationTest extends BrambleTestCase {
-
-	@Test
-	public void testMultiplierProducesSameResultsAsDefault() throws Exception {
-		// Instantiate the default implementation of the curve
-		X9ECParameters defaultX9Parameters =
-				TeleTrusTNamedCurves.getByName("brainpoolp256r1");
-		ECCurve defaultCurve = defaultX9Parameters.getCurve();
-		ECPoint defaultG = defaultX9Parameters.getG();
-		BigInteger defaultN = defaultX9Parameters.getN();
-		BigInteger defaultH = defaultX9Parameters.getH();
-		ECDomainParameters defaultParameters = new ECDomainParameters(
-				defaultCurve, defaultG, defaultN, defaultH);
-		// Instantiate an implementation using the Montgomery ladder multiplier
-		ECDomainParameters montgomeryParameters =
-				constantTime(defaultParameters);
-		// Generate two key pairs with each set of parameters, using the same
-		// deterministic PRNG for both sets of parameters
-		byte[] seed = new byte[32];
-		new SecureRandom().nextBytes(seed);
-		// Montgomery ladder multiplier
-		SecureRandom random = new PseudoSecureRandom(seed);
-		ECKeyGenerationParameters montgomeryGeneratorParams =
-				new ECKeyGenerationParameters(montgomeryParameters, random);
-		ECKeyPairGenerator montgomeryGenerator = new ECKeyPairGenerator();
-		montgomeryGenerator.init(montgomeryGeneratorParams);
-		AsymmetricCipherKeyPair montgomeryKeyPair1 =
-				montgomeryGenerator.generateKeyPair();
-		ECPrivateKeyParameters montgomeryPrivate1 =
-				(ECPrivateKeyParameters) montgomeryKeyPair1.getPrivate();
-		ECPublicKeyParameters montgomeryPublic1 =
-				(ECPublicKeyParameters) montgomeryKeyPair1.getPublic();
-		AsymmetricCipherKeyPair montgomeryKeyPair2 =
-				montgomeryGenerator.generateKeyPair();
-		ECPrivateKeyParameters montgomeryPrivate2 =
-				(ECPrivateKeyParameters) montgomeryKeyPair2.getPrivate();
-		ECPublicKeyParameters montgomeryPublic2 =
-				(ECPublicKeyParameters) montgomeryKeyPair2.getPublic();
-		// Default multiplier
-		random = new PseudoSecureRandom(seed);
-		ECKeyGenerationParameters defaultGeneratorParams =
-				new ECKeyGenerationParameters(defaultParameters, random);
-		ECKeyPairGenerator defaultGenerator = new ECKeyPairGenerator();
-		defaultGenerator.init(defaultGeneratorParams);
-		AsymmetricCipherKeyPair defaultKeyPair1 =
-				defaultGenerator.generateKeyPair();
-		ECPrivateKeyParameters defaultPrivate1 =
-				(ECPrivateKeyParameters) defaultKeyPair1.getPrivate();
-		ECPublicKeyParameters defaultPublic1 =
-				(ECPublicKeyParameters) defaultKeyPair1.getPublic();
-		AsymmetricCipherKeyPair defaultKeyPair2 =
-				defaultGenerator.generateKeyPair();
-		ECPrivateKeyParameters defaultPrivate2 =
-				(ECPrivateKeyParameters) defaultKeyPair2.getPrivate();
-		ECPublicKeyParameters defaultPublic2 =
-				(ECPublicKeyParameters) defaultKeyPair2.getPublic();
-		// The key pairs generated with both sets of parameters should be equal
-		assertEquals(montgomeryPrivate1.getD(), defaultPrivate1.getD());
-		assertEquals(montgomeryPublic1.getQ(), defaultPublic1.getQ());
-		assertEquals(montgomeryPrivate2.getD(), defaultPrivate2.getD());
-		assertEquals(montgomeryPublic2.getQ(), defaultPublic2.getQ());
-		// OK, all of the above was just sanity checks - now for the test!
-		ECDHCBasicAgreement agreement = new ECDHCBasicAgreement();
-		agreement.init(montgomeryPrivate1);
-		BigInteger sharedSecretMontgomeryMontgomery =
-				agreement.calculateAgreement(montgomeryPublic2);
-		agreement.init(montgomeryPrivate1);
-		BigInteger sharedSecretMontgomeryDefault =
-				agreement.calculateAgreement(defaultPublic2);
-		agreement.init(defaultPrivate1);
-		BigInteger sharedSecretDefaultMontgomery =
-				agreement.calculateAgreement(montgomeryPublic2);
-		agreement.init(defaultPrivate1);
-		BigInteger sharedSecretDefaultDefault =
-				agreement.calculateAgreement(defaultPublic2);
-		// Shared secrets calculated with different multipliers should be equal
-		assertEquals(sharedSecretMontgomeryMontgomery,
-				sharedSecretMontgomeryDefault);
-		assertEquals(sharedSecretMontgomeryMontgomery,
-				sharedSecretDefaultMontgomery);
-		assertEquals(sharedSecretMontgomeryMontgomery,
-				sharedSecretDefaultDefault);
-	}
-
-	private static ECDomainParameters constantTime(ECDomainParameters in) {
-		ECCurve curve = in.getCurve().configure().setMultiplier(
-				new MontgomeryLadderMultiplier()).create();
-		BigInteger x = in.getG().getAffineXCoord().toBigInteger();
-		BigInteger y = in.getG().getAffineYCoord().toBigInteger();
-		ECPoint g = curve.createPoint(x, y);
-		return new ECDomainParameters(curve, g, in.getN(), in.getH());
-	}
-}

bramble-core/src/test/java/org/briarproject/bramble/crypto/EllipticCurvePerformanceTest.java

@@ -3,30 +3,26 @@ package org.briarproject.bramble.crypto;
 import net.i2p.crypto.eddsa.EdDSASecurityProvider;
 import net.i2p.crypto.eddsa.KeyPairGenerator;
 
-import org.spongycastle.asn1.sec.SECNamedCurves;
-import org.spongycastle.asn1.teletrust.TeleTrusTNamedCurves;
-import org.spongycastle.asn1.x9.X9ECParameters;
-import org.spongycastle.crypto.AsymmetricCipherKeyPair;
-import org.spongycastle.crypto.BasicAgreement;
-import org.spongycastle.crypto.Digest;
-import org.spongycastle.crypto.agreement.ECDHBasicAgreement;
-import org.spongycastle.crypto.agreement.ECDHCBasicAgreement;
-import org.spongycastle.crypto.digests.Blake2bDigest;
-import org.spongycastle.crypto.generators.ECKeyPairGenerator;
-import org.spongycastle.crypto.params.ECDomainParameters;
-import org.spongycastle.crypto.params.ECKeyGenerationParameters;
-import org.spongycastle.crypto.params.ParametersWithRandom;
-import org.spongycastle.crypto.signers.DSADigestSigner;
-import org.spongycastle.crypto.signers.DSAKCalculator;
-import org.spongycastle.crypto.signers.ECDSASigner;
-import org.spongycastle.crypto.signers.HMacDSAKCalculator;
-import org.spongycastle.math.ec.ECCurve;
-import org.spongycastle.math.ec.ECPoint;
-import org.spongycastle.math.ec.MontgomeryLadderMultiplier;
+import org.bouncycastle.asn1.sec.SECNamedCurves;
+import org.bouncycastle.asn1.teletrust.TeleTrusTNamedCurves;
+import org.bouncycastle.asn1.x9.X9ECParameters;
+import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
+import org.bouncycastle.crypto.BasicAgreement;
+import org.bouncycastle.crypto.Digest;
+import org.bouncycastle.crypto.agreement.ECDHBasicAgreement;
+import org.bouncycastle.crypto.agreement.ECDHCBasicAgreement;
+import org.bouncycastle.crypto.digests.Blake2bDigest;
+import org.bouncycastle.crypto.generators.ECKeyPairGenerator;
+import org.bouncycastle.crypto.params.ECDomainParameters;
+import org.bouncycastle.crypto.params.ECKeyGenerationParameters;
+import org.bouncycastle.crypto.params.ParametersWithRandom;
+import org.bouncycastle.crypto.signers.DSADigestSigner;
+import org.bouncycastle.crypto.signers.DSAKCalculator;
+import org.bouncycastle.crypto.signers.ECDSASigner;
+import org.bouncycastle.crypto.signers.HMacDSAKCalculator;
 import org.whispersystems.curve25519.Curve25519;
 import org.whispersystems.curve25519.Curve25519KeyPair;
 
-import java.math.BigInteger;
 import java.security.GeneralSecurityException;
 import java.security.KeyPair;
 import java.security.Provider;
@@ -55,14 +51,12 @@ public class EllipticCurvePerformanceTest {
 		for (String name : SEC_NAMES) {
 			ECDomainParameters params =
 					convertParams(SECNamedCurves.getByName(name));
-			runTest(name + " default", params);
-			runTest(name + " constant", constantTime(params));
+			runTest(name, params);
 		}
 		for (String name : BRAINPOOL_NAMES) {
 			ECDomainParameters params =
 					convertParams(TeleTrusTNamedCurves.getByName(name));
-			runTest(name + " default", params);
-			runTest(name + " constant", constantTime(params));
+			runTest(name, params);
 		}
 		runCurve25519Test();
 		runEd25519Test();
@@ -193,13 +187,4 @@ public class EllipticCurvePerformanceTest {
 		return new ECDomainParameters(in.getCurve(), in.getG(), in.getN(),
 				in.getH());
 	}
-
-	private static ECDomainParameters constantTime(ECDomainParameters in) {
-		ECCurve curve = in.getCurve().configure().setMultiplier(
-				new MontgomeryLadderMultiplier()).create();
-		BigInteger x = in.getG().getAffineXCoord().toBigInteger();
-		BigInteger y = in.getG().getAffineYCoord().toBigInteger();
-		ECPoint g = curve.createPoint(x, y);
-		return new ECDomainParameters(curve, g, in.getN(), in.getH());
-	}
 }

bramble-core/src/test/java/org/briarproject/bramble/crypto/MessageEncrypterTest.java

@@ -5,7 +5,7 @@ import org.briarproject.bramble.api.crypto.PrivateKey;
 import org.briarproject.bramble.api.crypto.PublicKey;
 import org.briarproject.bramble.test.BrambleTestCase;
 import org.junit.Test;
-import org.spongycastle.crypto.CryptoException;
+import org.bouncycastle.crypto.CryptoException;
 
 import java.security.SecureRandom;
 

bramble-core/src/test/java/org/briarproject/bramble/crypto/PseudoRandom.java

@@ -1,11 +1,11 @@
 package org.briarproject.bramble.crypto;
 
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
-import org.spongycastle.crypto.Digest;
-import org.spongycastle.crypto.digests.Blake2bDigest;
-import org.spongycastle.crypto.engines.Salsa20Engine;
-import org.spongycastle.crypto.params.KeyParameter;
-import org.spongycastle.crypto.params.ParametersWithIV;
+import org.bouncycastle.crypto.Digest;
+import org.bouncycastle.crypto.digests.Blake2bDigest;
+import org.bouncycastle.crypto.engines.Salsa20Engine;
+import org.bouncycastle.crypto.params.KeyParameter;
+import org.bouncycastle.crypto.params.ParametersWithIV;
 
 import javax.annotation.concurrent.NotThreadSafe;
 

bramble-core/src/test/java/org/briarproject/bramble/keyagreement/KeyAgreementProtocolTest.java

@@ -11,8 +11,8 @@ import org.briarproject.bramble.api.keyagreement.PayloadEncoder;
 import org.briarproject.bramble.test.BrambleTestCase;
 import org.jmock.Expectations;
 import org.jmock.auto.Mock;
+import org.jmock.imposters.ByteBuddyClassImposteriser;
 import org.jmock.integration.junit4.JUnitRuleMockery;
-import org.jmock.lib.legacy.ClassImposteriser;
 import org.junit.Rule;
 import org.junit.Test;
 
@@ -34,7 +34,7 @@ public class KeyAgreementProtocolTest extends BrambleTestCase {
 	@Rule
 	public JUnitRuleMockery context = new JUnitRuleMockery() {{
 		// So we can mock concrete classes like KeyAgreementTransport
-		setImposteriser(ClassImposteriser.INSTANCE);
+		setImposteriser(ByteBuddyClassImposteriser.INSTANCE);
 	}};
 
 	private final PublicKey alicePubKey = getAgreementPublicKey();

bramble-core/src/test/java/org/briarproject/bramble/keyagreement/KeyAgreementTransportTest.java

@@ -14,7 +14,7 @@ import org.briarproject.bramble.api.record.RecordWriterFactory;
 import org.briarproject.bramble.test.BrambleMockTestCase;
 import org.briarproject.bramble.test.CaptureArgumentAction;
 import org.jmock.Expectations;
-import org.jmock.lib.legacy.ClassImposteriser;
+import org.jmock.imposters.ByteBuddyClassImposteriser;
 import org.junit.Test;
 
 import java.io.InputStream;
@@ -58,7 +58,7 @@ public class KeyAgreementTransportTest extends BrambleMockTestCase {
 	private KeyAgreementTransport kat;
 
 	public KeyAgreementTransportTest() {
-		context.setImposteriser(ClassImposteriser.INSTANCE);
+		context.setImposteriser(ByteBuddyClassImposteriser.INSTANCE);
 		inputStream = context.mock(InputStream.class);
 		outputStream = context.mock(OutputStream.class);
 	}

bramble-core/src/test/java/org/briarproject/bramble/plugin/PollerImplTest.java

@@ -25,7 +25,7 @@ import org.briarproject.bramble.test.BrambleMockTestCase;
 import org.briarproject.bramble.test.ImmediateExecutor;
 import org.briarproject.bramble.test.RunAction;
 import org.jmock.Expectations;
-import org.jmock.lib.legacy.ClassImposteriser;
+import org.jmock.imposters.ByteBuddyClassImposteriser;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -69,7 +69,7 @@ public class PollerImplTest extends BrambleMockTestCase {
 	private PollerImpl poller;
 
 	public PollerImplTest() {
-		context.setImposteriser(ClassImposteriser.INSTANCE);
+		context.setImposteriser(ByteBuddyClassImposteriser.INSTANCE);
 		random = context.mock(SecureRandom.class);
 	}
 

bramble-core/witness.gradle

@@ -1,6 +1,7 @@
 dependencyVerification {
     verify = [
-        'cglib:cglib:3.2.0:cglib-3.2.0.jar:adb13bab79712ad6bdf1bd59f2a3918018a8016e722e8a357065afb9e6690861',
+        'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
+        'com.google.code.findbugs:annotations:3.0.1:annotations-3.0.1.jar:6b47ff0a6de0ce17cbedc3abb0828ca5bce3009d53ea47b3723ff023c4742f79',
         'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
         'com.google.dagger:dagger-compiler:2.24:dagger-compiler-2.24.jar:3c5afb955fb188da485cb2c048eff37dce0e1530b9780a0f2f7187d16d1ccc1f',
         'com.google.dagger:dagger-producers:2.24:dagger-producers-2.24.jar:f10f45b95191954d5d6b043fca9e62fb621d21bf70634b8f8476c7988b504c3a',
@@ -14,17 +15,18 @@ dependencyVerification {
         'com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava:listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:b372a037d4230aa57fbeffdef30fd6123f9c0c2db85d0aced00c91b974f33f99',
         'com.google.j2objc:j2objc-annotations:1.1:j2objc-annotations-1.1.jar:2994a7eb78f2710bd3d3bfb639b2c94e219cedac0d4d084d516e78c16dddecf6',
         'com.h2database:h2:1.4.192:h2-1.4.192.jar:225b22e9857235c46c93861410b60b8c81c10dc8985f4faf188985ba5445126c',
-        'com.madgag.spongycastle:core:1.58.0.0:core-1.58.0.0.jar:199617dd5698c5a9312b898c0a4cec7ce9dd8649d07f65d91629f58229d72728',
         'com.squareup:javapoet:1.11.1:javapoet-1.11.1.jar:9cbf2107be499ec6e95afd36b58e3ca122a24166cdd375732e51267d64058e90',
         'javax.annotation:jsr250-api:1.0:jsr250-api-1.0.jar:a1a922d0d9b6d183ed3800dfac01d1e1eb159f0e8c6f94736931c1def54a941f',
         'javax.inject:javax.inject:1:javax.inject-1.jar:91c77044a50c481636c32d916fd89c9118a72195390452c81065080f957de7ff',
         'junit:junit:4.12:junit-4.12.jar:59721f0805e223d84b90677887d9ff567dc534d7c502ca903c0c2b17f05c116a',
+        'net.bytebuddy:byte-buddy:1.9.12:byte-buddy-1.9.12.jar:3688c3d434bebc3edc5516296a2ed0f47b65e451071b4afecad84f902f0efc11',
         'net.i2p.crypto:eddsa:0.2.0:eddsa-0.2.0.jar:a7cb1b85c16e2f0730b9204106929a1d9aaae1df728adc7041a8b8b605692140',
+        'net.jcip:jcip-annotations:1.0:jcip-annotations-1.0.jar:be5805392060c71474bf6c9a67a099471274d30b83eef84bfc4e0889a4f1dcc0',
+        'net.jodah:concurrentunit:0.4.2:concurrentunit-0.4.2.jar:5583078e1acf91734939e985bc9e7ee947b0e93a8eef679da6bb07bbeb47ced3',
         'net.ltgt.gradle.incap:incap:0.2:incap-0.2.jar:b625b9806b0f1e4bc7a2e3457119488de3cd57ea20feedd513db070a573a4ffd',
-        'org.apache.ant:ant-launcher:1.9.4:ant-launcher-1.9.4.jar:7bccea20b41801ca17bcbc909a78c835d0f443f12d639c77bd6ae3d05861608d',
-        'org.apache.ant:ant:1.9.4:ant-1.9.4.jar:649ae0730251de07b8913f49286d46bba7b92d47c5f332610aa426c4f02161d8',
-        'org.beanshell:bsh:1.3.0:bsh-1.3.0.jar:9b04edc75d19db54f1b4e8b5355e9364384c6cf71eb0a1b9724c159d779879f8',
+        'org.apache-extras.beanshell:bsh:2.0b6:bsh-2.0b6.jar:a17955976070c0573235ee662f2794a78082758b61accffce8d3f8aedcd91047',
         'org.bitlet:weupnp:0.1.4:weupnp-0.1.4.jar:88df7e6504929d00bdb832863761385c68ab92af945b04f0770b126270a444fb',
+        'org.bouncycastle:bcprov-jdk15on:1.65:bcprov-jdk15on-1.65.jar:e78f96eb59066c94c94fb2d6b5eb80f52feac6f5f9776898634f8addec6e2137',
         'org.briarproject:jtorctl:0.3:jtorctl-0.3.jar:f2939238a097898998432effe93b0334d97a787972ab3a91a8973a1d309fc864',
         'org.checkerframework:checker-compat-qual:2.5.3:checker-compat-qual-2.5.3.jar:d76b9afea61c7c082908023f0cbc1427fab9abd2df915c8b8a3e7a509bccbc6d',
         'org.checkerframework:checker-qual:2.5.2:checker-qual-2.5.2.jar:64b02691c8b9d4e7700f8ee2e742dce7ea2c6e81e662b7522c9ee3bf568c040a',
@@ -32,16 +34,18 @@ dependencyVerification {
         'org.codehaus.mojo:animal-sniffer-annotations:1.17:animal-sniffer-annotations-1.17.jar:92654f493ecfec52082e76354f0ebf87648dc3d5cec2e3c3cdb947c016747a53',
         'org.codehaus.mojo:animal-sniffer-ant-tasks:1.16:animal-sniffer-ant-tasks-1.16.jar:890040976fbe2d584619a6a61b1fd2e925b3b5eb342a85eb2762c467c0d64e90',
         'org.codehaus.mojo:animal-sniffer:1.16:animal-sniffer-1.16.jar:72be8bcc226ba43b937c722a08a07852bfa1b11400089265d5df0ee7b38b1d52',
-        'org.hamcrest:hamcrest-core:1.3:hamcrest-core-1.3.jar:66fdef91e9739348df7a096aa384a5685f4e875584cce89386a7a47251c4d8e9',
-        'org.hamcrest:hamcrest-library:1.3:hamcrest-library-1.3.jar:711d64522f9ec410983bd310934296da134be4254a125080a0416ec178dfad1c',
+        'org.hamcrest:hamcrest-core:2.1:hamcrest-core-2.1.jar:e09109e54a289d88506b9bfec987ddd199f4217c9464132668351b9a4f00bee9',
+        'org.hamcrest:hamcrest-library:2.1:hamcrest-library-2.1.jar:b7e2b6895b3b679f0e47b6380fda391b225e9b78505db9d8bdde8d3cc8d52a21',
+        'org.hamcrest:hamcrest:2.1:hamcrest-2.1.jar:ba93b2e3a562322ba432f0a1b53addcc55cb188253319a020ed77f824e692050',
         'org.hsqldb:hsqldb:2.3.5:hsqldb-2.3.5.jar:6676a6977ac98997a80f827ddbd3fe8ca1e0853dad1492512135fd1a222ccfad',
-        'org.jmock:jmock-junit4:2.8.2:jmock-junit4-2.8.2.jar:f7ee4df4f7bd7b7f1cafad3b99eb74d579f109d5992ff625347352edb55e674c',
-        'org.jmock:jmock-legacy:2.8.2:jmock-legacy-2.8.2.jar:f2b985a5c08a9edb7f37612330c058809da3f6a6d63ce792426ebf8ff0d6d31b',
-        'org.jmock:jmock-testjar:2.8.2:jmock-testjar-2.8.2.jar:8900860f72c474e027cf97fe78dcbf154a1aa7fc62b6845c5fb4e4f3c7bc8760',
-        'org.jmock:jmock:2.8.2:jmock-2.8.2.jar:6c73cb4a2e6dbfb61fd99c9a768539c170ab6568e57846bd60dbf19596b65b16',
-        'org.objenesis:objenesis:2.1:objenesis-2.1.jar:c74330cc6b806c804fd37e74487b4fe5d7c2750c5e15fbc6efa13bdee1bdef80',
+        'org.jmock:jmock-imposters:2.12.0:jmock-imposters-2.12.0.jar:3b836269745a137c9b2347e8d7c2104845b126ef04f012d6bfd94f1a7dea7b09',
+        'org.jmock:jmock-junit4:2.12.0:jmock-junit4-2.12.0.jar:3233062fc889637c151a24f1ee086bad04321ab7d8264fef279daff0fa27205b',
+        'org.jmock:jmock-legacy:2.12.0:jmock-legacy-2.12.0.jar:dea3a9cca653d082e2fe7e40232e982fe03a9984c7d67ceff24f3e03fe580dcd',
+        'org.jmock:jmock-testjar:2.12.0:jmock-testjar-2.12.0.jar:efefbcf6cd294d0e29f0c46eb2a3380d4ca4e1763ff719c69e2f2ac62f564a04',
+        'org.jmock:jmock:2.12.0:jmock-2.12.0.jar:266d07314c0cd343c46ff8a55601272de8cf406807caf55e6f313295f83d10be',
+        'org.objenesis:objenesis:3.0.1:objenesis-3.0.1.jar:7a8ff780b9ff48415d7c705f60030b0acaa616e7f823c98eede3b63508d4e984',
         'org.ow2.asm:asm-all:5.2:asm-all-5.2.jar:7fbffbc1db3422e2101689fd88df8384b15817b52b9b2b267b9f6d2511dc198d',
-        'org.ow2.asm:asm:5.0.4:asm-5.0.4.jar:896618ed8ae62702521a78bc7be42b7c491a08e6920a15f89a3ecdec31e9a220',
+        'org.ow2.asm:asm:7.1:asm-7.1.jar:4ab2fa2b6d2cc9ccb1eaa05ea329c407b47b13ed2915f62f8c4b8cc96258d4de',
         'org.whispersystems:curve25519-java:0.5.0:curve25519-java-0.5.0.jar:0aadd43cf01d11e9b58f867b3c4f25c3194e8b0623d1953d32dfbfbee009e38d',
     ]
 }

bramble-java/build.gradle

@@ -23,10 +23,9 @@ dependencies {
 
 	testImplementation project(path: ':bramble-api', configuration: 'testOutput')
 	testImplementation project(path: ':bramble-core', configuration: 'testOutput')
-	testImplementation 'junit:junit:4.12'
-	testImplementation "org.jmock:jmock:2.8.2"
-	testImplementation "org.jmock:jmock-junit4:2.8.2"
-	testImplementation "org.jmock:jmock-legacy:2.8.2"
+	testImplementation "junit:junit:$junit_version"
+	testImplementation "org.jmock:jmock:$jmock_version"
+	testImplementation "org.jmock:jmock-junit4:$jmock_version"
 
 	testAnnotationProcessor 'com.google.dagger:dagger-compiler:2.24'
 }

bramble-java/witness.gradle

@@ -1,6 +1,7 @@
 dependencyVerification {
     verify = [
-        'cglib:cglib:3.2.0:cglib-3.2.0.jar:adb13bab79712ad6bdf1bd59f2a3918018a8016e722e8a357065afb9e6690861',
+        'cglib:cglib:3.2.8:cglib-3.2.8.jar:3f64de999ecc5595dc84ca8ff0879d8a34c8623f9ef3c517a53ed59023fcb9db',
+        'com.google.code.findbugs:annotations:3.0.1:annotations-3.0.1.jar:6b47ff0a6de0ce17cbedc3abb0828ca5bce3009d53ea47b3723ff023c4742f79',
         'com.google.code.findbugs:jsr305:3.0.2:jsr305-3.0.2.jar:766ad2a0783f2687962c8ad74ceecc38a28b9f72a2d085ee438b7813e928d0c7',
         'com.google.dagger:dagger-compiler:2.24:dagger-compiler-2.24.jar:3c5afb955fb188da485cb2c048eff37dce0e1530b9780a0f2f7187d16d1ccc1f',
         'com.google.dagger:dagger-producers:2.24:dagger-producers-2.24.jar:f10f45b95191954d5d6b043fca9e62fb621d21bf70634b8f8476c7988b504c3a',
@@ -17,24 +18,26 @@ dependencyVerification {
         'javax.annotation:jsr250-api:1.0:jsr250-api-1.0.jar:a1a922d0d9b6d183ed3800dfac01d1e1eb159f0e8c6f94736931c1def54a941f',
         'javax.inject:javax.inject:1:javax.inject-1.jar:91c77044a50c481636c32d916fd89c9118a72195390452c81065080f957de7ff',
         'junit:junit:4.12:junit-4.12.jar:59721f0805e223d84b90677887d9ff567dc534d7c502ca903c0c2b17f05c116a',
+        'net.bytebuddy:byte-buddy:1.9.12:byte-buddy-1.9.12.jar:3688c3d434bebc3edc5516296a2ed0f47b65e451071b4afecad84f902f0efc11',
         'net.java.dev.jna:jna-platform:4.5.2:jna-platform-4.5.2.jar:f1d00c167d8921c6e23c626ef9f1c3ae0be473c95c68ffa012bc7ae55a87e2d6',
         'net.java.dev.jna:jna:4.5.2:jna-4.5.2.jar:0c8eb7acf67261656d79005191debaba3b6bf5dd60a43735a245429381dbecff',
+        'net.jcip:jcip-annotations:1.0:jcip-annotations-1.0.jar:be5805392060c71474bf6c9a67a099471274d30b83eef84bfc4e0889a4f1dcc0',
         'net.ltgt.gradle.incap:incap:0.2:incap-0.2.jar:b625b9806b0f1e4bc7a2e3457119488de3cd57ea20feedd513db070a573a4ffd',
-        'org.apache.ant:ant-launcher:1.9.4:ant-launcher-1.9.4.jar:7bccea20b41801ca17bcbc909a78c835d0f443f12d639c77bd6ae3d05861608d',
-        'org.apache.ant:ant:1.9.4:ant-1.9.4.jar:649ae0730251de07b8913f49286d46bba7b92d47c5f332610aa426c4f02161d8',
-        'org.beanshell:bsh:1.3.0:bsh-1.3.0.jar:9b04edc75d19db54f1b4e8b5355e9364384c6cf71eb0a1b9724c159d779879f8',
+        'org.apache-extras.beanshell:bsh:2.0b6:bsh-2.0b6.jar:a17955976070c0573235ee662f2794a78082758b61accffce8d3f8aedcd91047',
         'org.briarproject:obfs4proxy:0.0.12-dev-40245c4a:obfs4proxy-0.0.12-dev-40245c4a.zip:172029e7058b3a83ac93ac4991a44bf76e16ce8d46f558f5836d57da3cb3a766',
         'org.briarproject:tor:0.3.5.13-1:tor-0.3.5.13-1.zip:ef35c16bf8dc1f4c75ed71d9f55e4514f383d124ec96b859aca647c990927c99',
         'org.checkerframework:checker-compat-qual:2.5.3:checker-compat-qual-2.5.3.jar:d76b9afea61c7c082908023f0cbc1427fab9abd2df915c8b8a3e7a509bccbc6d',
         'org.checkerframework:checker-qual:2.5.2:checker-qual-2.5.2.jar:64b02691c8b9d4e7700f8ee2e742dce7ea2c6e81e662b7522c9ee3bf568c040a',
         'org.codehaus.mojo:animal-sniffer-annotations:1.17:animal-sniffer-annotations-1.17.jar:92654f493ecfec52082e76354f0ebf87648dc3d5cec2e3c3cdb947c016747a53',
-        'org.hamcrest:hamcrest-core:1.3:hamcrest-core-1.3.jar:66fdef91e9739348df7a096aa384a5685f4e875584cce89386a7a47251c4d8e9',
-        'org.hamcrest:hamcrest-library:1.3:hamcrest-library-1.3.jar:711d64522f9ec410983bd310934296da134be4254a125080a0416ec178dfad1c',
-        'org.jmock:jmock-junit4:2.8.2:jmock-junit4-2.8.2.jar:f7ee4df4f7bd7b7f1cafad3b99eb74d579f109d5992ff625347352edb55e674c',
-        'org.jmock:jmock-legacy:2.8.2:jmock-legacy-2.8.2.jar:f2b985a5c08a9edb7f37612330c058809da3f6a6d63ce792426ebf8ff0d6d31b',
-        'org.jmock:jmock-testjar:2.8.2:jmock-testjar-2.8.2.jar:8900860f72c474e027cf97fe78dcbf154a1aa7fc62b6845c5fb4e4f3c7bc8760',
-        'org.jmock:jmock:2.8.2:jmock-2.8.2.jar:6c73cb4a2e6dbfb61fd99c9a768539c170ab6568e57846bd60dbf19596b65b16',
-        'org.objenesis:objenesis:2.1:objenesis-2.1.jar:c74330cc6b806c804fd37e74487b4fe5d7c2750c5e15fbc6efa13bdee1bdef80',
-        'org.ow2.asm:asm:5.0.4:asm-5.0.4.jar:896618ed8ae62702521a78bc7be42b7c491a08e6920a15f89a3ecdec31e9a220',
+        'org.hamcrest:hamcrest-core:2.1:hamcrest-core-2.1.jar:e09109e54a289d88506b9bfec987ddd199f4217c9464132668351b9a4f00bee9',
+        'org.hamcrest:hamcrest-library:2.1:hamcrest-library-2.1.jar:b7e2b6895b3b679f0e47b6380fda391b225e9b78505db9d8bdde8d3cc8d52a21',
+        'org.hamcrest:hamcrest:2.1:hamcrest-2.1.jar:ba93b2e3a562322ba432f0a1b53addcc55cb188253319a020ed77f824e692050',
+        'org.jmock:jmock-imposters:2.12.0:jmock-imposters-2.12.0.jar:3b836269745a137c9b2347e8d7c2104845b126ef04f012d6bfd94f1a7dea7b09',
+        'org.jmock:jmock-junit4:2.12.0:jmock-junit4-2.12.0.jar:3233062fc889637c151a24f1ee086bad04321ab7d8264fef279daff0fa27205b',
+        'org.jmock:jmock-legacy:2.12.0:jmock-legacy-2.12.0.jar:dea3a9cca653d082e2fe7e40232e982fe03a9984c7d67ceff24f3e03fe580dcd',
+        'org.jmock:jmock-testjar:2.12.0:jmock-testjar-2.12.0.jar:efefbcf6cd294d0e29f0c46eb2a3380d4ca4e1763ff719c69e2f2ac62f564a04',
+        'org.jmock:jmock:2.12.0:jmock-2.12.0.jar:266d07314c0cd343c46ff8a55601272de8cf406807caf55e6f313295f83d10be',
+        'org.objenesis:objenesis:3.0.1:objenesis-3.0.1.jar:7a8ff780b9ff48415d7c705f60030b0acaa616e7f823c98eede3b63508d4e984',
+        'org.ow2.asm:asm:7.1:asm-7.1.jar:4ab2fa2b6d2cc9ccb1eaa05ea329c407b47b13ed2915f62f8c4b8cc96258d4de',
     ]
 }

briar-android/build.gradle

@@ -137,11 +137,12 @@ dependencies {
 	testImplementation "androidx.arch.core:core-testing:2.1.0"
 	testImplementation "androidx.test.espresso:espresso-core:$espressoVersion"
 	testImplementation 'org.robolectric:robolectric:4.3.1'
-	testImplementation 'org.mockito:mockito-core:3.1.0'
-	testImplementation 'junit:junit:4.13.1'
-	testImplementation "org.jmock:jmock:$jmockVersion"
-	testImplementation "org.jmock:jmock-junit4:$jmockVersion"
-	testImplementation "org.jmock:jmock-legacy:$jmockVersion"
+
+	testImplementation 'org.mockito:mockito-core:3.9.0'
+	testImplementation "junit:junit:$junit_version"
+	testImplementation "org.jmock:jmock:$jmock_version"
+	testImplementation "org.jmock:jmock-junit4:$jmock_version"
+	testImplementation "org.jmock:jmock-imposters:$jmock_version"
 	testAnnotationProcessor "com.google.dagger:dagger-compiler:2.24"
 
 	androidTestImplementation project(path: ':bramble-api', configuration: 'testOutput')

briar-android/src/main/AndroidManifest.xml

@@ -139,16 +139,7 @@
 		</activity>
 
 		<activity
-			android:name="org.briarproject.briar.android.account.NewOrRecoverActivity"
-			android:label="@string/activity_name_new_or_recover_account"
-			android:parentActivityName="org.briarproject.briar.android.login.StartupActivity">
-			<meta-data
-				android:name="android.support.PARENT_ACTIVITY"
-				android:value="org.briarproject.briar.android.login.StartupActivity" />
-		</activity>
-
-		<activity
-			android:name="org.briarproject.briar.android.socialbackup.DistributedBackupActivity"
+			android:name="org.briarproject.briar.android.socialbackup.SocialBackupSetupActivity"
 			android:label="@string/activity_name_distributed_backup"
 			android:parentActivityName="org.briarproject.briar.android.settings.SettingsActivity">
 			<meta-data
@@ -168,10 +159,11 @@
 		<activity
 			android:name="org.briarproject.briar.android.socialbackup.recover.OwnerReturnShardActivity"
 			android:label="@string/activity_name_recovery"
-			android:parentActivityName="org.briarproject.briar.android.account.NewOrRecoverActivity">
+
+			android:parentActivityName="org.briarproject.briar.android.account.SetupActivity">
 			<meta-data
 				android:name="android.support.PARENT_ACTIVITY"
-				android:value="org.briarproject.briar.android.account.NewOrRecoverActivity" />
+				android:value="org.briarproject.briar.android.account.SetupActivity" />
 		</activity>
 
 		<activity
@@ -472,6 +464,42 @@
 			</intent-filter>
 		</activity>
 
+		<activity
+			android:name="org.briarproject.briar.android.remotewipe.RemoteWipeActivatedActivity"
+			android:noHistory="true"
+			android:theme="@style/TranslucentTheme">
+			<intent-filter>
+				<action android:name="org.briarproject.briar.android.AndroidNotifiactionManager" />
+			</intent-filter>
+		</activity>
+
+		<activity
+			android:name="org.briarproject.briar.android.remotewipe.RemoteWipeSetupActivity"
+			android:label="@string/activity_name_remote_wipe"
+			android:parentActivityName="org.briarproject.briar.android.settings.SettingsActivity">
+			<meta-data
+				android:name="android.support.PARENT_ACTIVITY"
+				android:value="org.briarproject.briar.android.settings.SettingsActivity" />
+		</activity>
+
+		<activity
+			android:name="org.briarproject.briar.android.remotewipe.activate.ActivateRemoteWipeActivity"
+			android:label="@string/activity_name_activate_remote_wipe"
+			android:parentActivityName="org.briarproject.briar.android.conversation.ConversationActivity">
+			<meta-data
+				android:name="android.support.PARENT_ACTIVITY"
+				android:value="org.briarproject.briar.android.conversation.ConversationActivity" />
+		</activity>
+
+		<activity
+			android:name="org.briarproject.briar.android.remotewipe.revoke.RevokeRemoteWipeActivity"
+			android:label="@string/activity_name_revoke_remote_wipe"
+			android:parentActivityName="org.briarproject.briar.android.conversation.ConversationActivity">
+			<meta-data
+				android:name="android.support.PARENT_ACTIVITY"
+				android:value="org.briarproject.briar.android.conversation.ConversationActivity" />
+		</activity>
+
 		<activity
 			android:name="org.briarproject.briar.android.logout.ExitActivity"
 			android:theme="@android:style/Theme.NoDisplay" />

briar-android/src/main/java/org/briarproject/briar/android/AndroidNotificationManagerImpl.java

@@ -33,6 +33,7 @@ import org.briarproject.briar.android.forum.ForumActivity;
 import org.briarproject.briar.android.login.SignInReminderReceiver;
 import org.briarproject.briar.android.navdrawer.NavDrawerActivity;
 import org.briarproject.briar.android.privategroup.conversation.GroupActivity;
+import org.briarproject.briar.android.remotewipe.RemoteWipeActivatedActivity;
 import org.briarproject.briar.android.splash.SplashScreenActivity;
 import org.briarproject.briar.android.util.BriarNotificationBuilder;
 import org.briarproject.briar.api.android.AndroidNotificationManager;

briar-android/src/main/java/org/briarproject/briar/android/AppModule.java

@@ -39,9 +39,11 @@ import org.briarproject.briar.android.login.LoginModule;
 import org.briarproject.briar.android.navdrawer.NavDrawerModule;
 import org.briarproject.briar.android.privategroup.conversation.GroupConversationModule;
 import org.briarproject.briar.android.privategroup.list.GroupListModule;
+import org.briarproject.briar.android.remotewipe.RemoteWipeModule;
 import org.briarproject.briar.android.reporting.DevReportModule;
 import org.briarproject.briar.android.settings.SettingsModule;
 import org.briarproject.briar.android.sharing.SharingModule;
+import org.briarproject.briar.android.socialbackup.SocialBackupSetupModule;
 import org.briarproject.briar.android.socialbackup.recover.CustodianReturnShardModule;
 import org.briarproject.briar.android.socialbackup.recover.OwnerReturnShardModule;
 import org.briarproject.briar.android.test.TestAvatarCreatorImpl;
@@ -94,7 +96,9 @@ import static org.briarproject.briar.android.TestingConstants.IS_DEBUG_BUILD;
 		GroupConversationModule.class,
 		SharingModule.class,
 		OwnerReturnShardModule.class,
-		CustodianReturnShardModule.class
+		CustodianReturnShardModule.class,
+		RemoteWipeModule.class,
+		SocialBackupSetupModule.class
 })
 public class AppModule {
 

briar-android/src/main/java/org/briarproject/briar/android/BriarService.java

@@ -18,14 +18,19 @@ import com.bumptech.glide.Glide;
 
 import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.bramble.api.crypto.SecretKey;
+import org.briarproject.bramble.api.event.Event;
+import org.briarproject.bramble.api.event.EventBus;
+import org.briarproject.bramble.api.event.EventListener;
 import org.briarproject.bramble.api.lifecycle.LifecycleManager;
 import org.briarproject.bramble.api.lifecycle.LifecycleManager.StartResult;
 import org.briarproject.bramble.api.system.AndroidExecutor;
 import org.briarproject.bramble.api.system.AndroidWakeLockManager;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.logout.HideUiActivity;
+import org.briarproject.briar.android.remotewipe.RemoteWipeActivatedActivity;
 import org.briarproject.briar.api.android.AndroidNotificationManager;
 import org.briarproject.briar.api.android.LockManager;
+import org.briarproject.briar.api.remotewipe.RemoteWipeActivatedEvent;
 
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -62,7 +67,7 @@ import static org.briarproject.briar.api.android.AndroidNotificationManager.ONGO
 import static org.briarproject.briar.api.android.LockManager.ACTION_LOCK;
 import static org.briarproject.briar.api.android.LockManager.EXTRA_PID;
 
-public class BriarService extends Service {
+public class BriarService extends Service implements EventListener {
 
 	public static String EXTRA_START_RESULT =
 			"org.briarproject.briar.START_RESULT";
@@ -96,6 +101,8 @@ public class BriarService extends Service {
 	@Inject
 	volatile AndroidExecutor androidExecutor;
 	private volatile boolean started = false;
+	@Inject
+	volatile EventBus eventBus;
 
 	@Override
 	public void onCreate() {
@@ -173,6 +180,8 @@ public class BriarService extends Service {
 			filter.addAction("android.intent.action.QUICKBOOT_POWEROFF");
 			filter.addAction("com.htc.intent.action.QUICKBOOT_POWEROFF");
 			registerReceiver(receiver, filter);
+
+			eventBus.addListener(this);
 		}, "LifecycleStartup");
 	}
 
@@ -239,6 +248,7 @@ public class BriarService extends Service {
 			wakeLockManager.executeWakefully(() -> {
 				if (started) lifecycleManager.stopServices();
 			}, "LifecycleShutdown");
+			eventBus.removeListener(this);
 		}, "LifecycleShutdown");
 	}
 
@@ -327,6 +337,19 @@ public class BriarService extends Service {
 		stopSelf(); // This will call onDestroy()
 	}
 
+	/**
+	 * Listens for the remote wipe event
+	 */
+	@Override
+	public void eventOccurred(Event e) {
+		if (e instanceof RemoteWipeActivatedEvent) {
+			Intent i = new Intent(this, RemoteWipeActivatedActivity.class);
+			i.addFlags(FLAG_ACTIVITY_NEW_TASK
+					| FLAG_ACTIVITY_CLEAR_TASK);
+			startActivity(i);
+		}
+	}
+
 	public class BriarBinder extends Binder {
 
 		/**

briar-android/src/main/java/org/briarproject/briar/android/account/AuthorNameFragment.java

@@ -30,6 +30,7 @@ public class AuthorNameFragment extends SetupFragment {
 	private TextInputLayout authorNameWrapper;
 	private TextInputEditText authorNameInput;
 	private Button nextButton;
+	private Button recoverButton;
 
 	public static AuthorNameFragment newInstance() {
 		return new AuthorNameFragment();
@@ -54,6 +55,9 @@ public class AuthorNameFragment extends SetupFragment {
 		authorNameInput.addTextChangedListener(this);
 		nextButton.setOnClickListener(this);
 
+		recoverButton = v.findViewById(R.id.buttonRestoreAccount);
+		recoverButton.setOnClickListener(e -> viewModel.recoverClicked());
+
 		return v;
 	}
 
@@ -75,6 +79,8 @@ public class AuthorNameFragment extends SetupFragment {
 		boolean enabled = authorNameLength > 0 && !error;
 		authorNameInput.setOnEditorActionListener(enabled ? this : null);
 		nextButton.setEnabled(enabled);
+		recoverButton.setEnabled(!enabled);
+//		recoverButton.setVisibility(enabled ? View.INVISIBLE : View.VISIBLE);
 	}
 
 	@Override

briar-android/src/main/java/org/briarproject/briar/android/account/NewOrRecoverActivity.java

@@ -1,60 +0,0 @@
-package org.briarproject.briar.android.account;
-
-import android.content.Intent;
-import android.os.Bundle;
-
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.activity.ActivityComponent;
-import org.briarproject.briar.android.activity.BaseActivity;
-import org.briarproject.briar.android.fragment.BaseFragment;
-import org.briarproject.briar.android.socialbackup.recover.OwnerReturnShardActivity;
-
-import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TASK;
-import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TOP;
-import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;
-import static android.content.Intent.FLAG_ACTIVITY_TASK_ON_HOME;
-
-public class NewOrRecoverActivity extends BaseActivity implements
-		BaseFragment.BaseFragmentListener, SetupNewAccountChosenListener,
-		RecoverAccountListener {
-
-	@Override
-	public void injectActivity(ActivityComponent component) {
-		component.inject(this);
-	}
-
-	@Override
-	public void onCreate(Bundle state) {
-		super.onCreate(state);
-		// fade-in after splash screen instead of default animation
-		// TODO the fade in is not working
-		overridePendingTransition(R.anim.fade_in, R.anim.fade_out);
-		setContentView(R.layout.activity_fragment_container);
-		NewOrRecoverFragment fragment = NewOrRecoverFragment.newInstance();
-		showInitialFragment(fragment);
-	}
-
-	@Override
-	public void setupNewAccountChosen() {
-		finish();
-		Intent i = new Intent(this, SetupActivity.class);
-		i.addFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TOP |
-				FLAG_ACTIVITY_CLEAR_TASK | FLAG_ACTIVITY_TASK_ON_HOME);
-		startActivity(i);
-	}
-
-	@Override
-	public void recoverAccountChosen() {
-		finish();
-		Intent i = new Intent(this, OwnerReturnShardActivity.class);
-		i.addFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TOP |
-				FLAG_ACTIVITY_CLEAR_TASK | FLAG_ACTIVITY_TASK_ON_HOME);
-		startActivity(i);
-	}
-
-	@Override
-	@Deprecated
-	public void runOnDbThread(Runnable runnable) {
-		throw new RuntimeException("Don't use this deprecated method here.");
-	}
-}

briar-android/src/main/java/org/briarproject/briar/android/account/NewOrRecoverFragment.java

@@ -1,70 +0,0 @@
-package org.briarproject.briar.android.account;
-
-import android.content.Context;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.Button;
-
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.activity.ActivityComponent;
-import org.briarproject.briar.android.fragment.BaseFragment;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-
-public class NewOrRecoverFragment extends BaseFragment {
-
-	public static final String TAG = NewOrRecoverFragment.class.getName();
-
-	protected SetupNewAccountChosenListener setupNewAccountListener;
-	protected RecoverAccountListener recoverAccountListener;
-
-	public static NewOrRecoverFragment newInstance() {
-		Bundle bundle = new Bundle();
-		NewOrRecoverFragment fragment = new NewOrRecoverFragment();
-		fragment.setArguments(bundle);
-		return fragment;
-	}
-	@Override
-	public void onCreate(@Nullable Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		requireActivity().setTitle(R.string.setup_title);
-	}
-
-	@Nullable
-	@Override
-	public View onCreateView(@NonNull LayoutInflater inflater, @Nullable
-			ViewGroup container, @Nullable Bundle savedInstanceState) {
-		View view = inflater.inflate(R.layout.fragment_new_or_recover,
-				container, false);
-		Button newAccountButton = view.findViewById(R.id.buttonSetupNewAccount);
-		newAccountButton.setOnClickListener(e -> {
-			setupNewAccountListener.setupNewAccountChosen();
-		});
-
-		Button recoverAccountButton = view.findViewById(R.id.buttonRestoreAccount);
-		recoverAccountButton.setOnClickListener(e -> {
-			recoverAccountListener.recoverAccountChosen();
-		});
-		return view;
-	}
-
-	@Override
-	public void onAttach(Context context) {
-		super.onAttach(context);
-		setupNewAccountListener = (SetupNewAccountChosenListener) context;
-		recoverAccountListener = (RecoverAccountListener) context;
-	}
-
-	@Override
-	public String getUniqueTag() {
-		return TAG;
-	}
-
-	@Override
-	public void injectFragment(ActivityComponent component) {
-		component.inject(this);
-	}
-}

briar-android/src/main/java/org/briarproject/briar/android/account/SetupActivity.java

@@ -10,6 +10,7 @@ import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.activity.BaseActivity;
 import org.briarproject.briar.android.fragment.BaseFragment.BaseFragmentListener;
+import org.briarproject.briar.android.socialbackup.recover.OwnerReturnShardActivity;
 
 import javax.annotation.Nullable;
 import javax.inject.Inject;
@@ -25,6 +26,7 @@ import static org.briarproject.briar.android.account.SetupViewModel.State.AUTHOR
 import static org.briarproject.briar.android.account.SetupViewModel.State.CREATED;
 import static org.briarproject.briar.android.account.SetupViewModel.State.DOZE;
 import static org.briarproject.briar.android.account.SetupViewModel.State.FAILED;
+import static org.briarproject.briar.android.account.SetupViewModel.State.RECOVER;
 import static org.briarproject.briar.android.account.SetupViewModel.State.SET_PASSWORD;
 
 @MethodsNotNullByDefault
@@ -60,6 +62,8 @@ public class SetupActivity extends BaseActivity
 			showPasswordFragment();
 		} else if (state == DOZE) {
 			showDozeFragment();
+		} else if (state == RECOVER) {
+			recover();
 		} else if (state == CREATED || state == FAILED) {
 			// TODO: Show an error if failed
 			showApp();
@@ -84,6 +88,13 @@ public class SetupActivity extends BaseActivity
 		overridePendingTransition(R.anim.screen_new_in, R.anim.screen_old_out);
 	}
 
+	void recover () {
+//		finish();
+		Intent i = new Intent(this, OwnerReturnShardActivity.class);
+		i.addFlags(FLAG_ACTIVITY_NEW_TASK);
+		startActivity(i);
+	}
+
 	@Override
 	@Deprecated
 	public void runOnDbThread(Runnable runnable) {

briar-android/src/main/java/org/briarproject/briar/android/account/SetupViewModel.java

@@ -25,13 +25,14 @@ import static org.briarproject.briar.android.account.SetupViewModel.State.AUTHOR
 import static org.briarproject.briar.android.account.SetupViewModel.State.CREATED;
 import static org.briarproject.briar.android.account.SetupViewModel.State.DOZE;
 import static org.briarproject.briar.android.account.SetupViewModel.State.FAILED;
+import static org.briarproject.briar.android.account.SetupViewModel.State.RECOVER;
 import static org.briarproject.briar.android.account.SetupViewModel.State.SET_PASSWORD;
 
 @MethodsNotNullByDefault
 @ParametersNotNullByDefault
 public
 class SetupViewModel extends AndroidViewModel {
-	enum State {AUTHOR_NAME, SET_PASSWORD, DOZE, CREATED, FAILED}
+	enum State {AUTHOR_NAME, SET_PASSWORD, DOZE, CREATED, FAILED, RECOVER}
 
 	private static final Logger LOG =
 			getLogger(SetupActivity.class.getName());
@@ -117,4 +118,9 @@ class SetupViewModel extends AndroidViewModel {
 			}
 		});
 	}
+
+	public void recoverClicked() {
+		LOG.info("RECOVER CLICKED ***");
+	  state.postEvent(RECOVER);
+	}
 }

briar-android/src/main/java/org/briarproject/briar/android/activity/ActivityComponent.java

@@ -7,8 +7,6 @@ import org.briarproject.briar.android.AndroidComponent;
 import org.briarproject.briar.android.StartupFailureActivity;
 import org.briarproject.briar.android.account.AuthorNameFragment;
 import org.briarproject.briar.android.account.DozeFragment;
-import org.briarproject.briar.android.account.NewOrRecoverActivity;
-import org.briarproject.briar.android.account.NewOrRecoverFragment;
 import org.briarproject.briar.android.account.SetPasswordFragment;
 import org.briarproject.briar.android.account.SetupActivity;
 import org.briarproject.briar.android.account.UnlockActivity;
@@ -65,6 +63,15 @@ import org.briarproject.briar.android.privategroup.memberlist.GroupMemberModule;
 import org.briarproject.briar.android.privategroup.reveal.GroupRevealModule;
 import org.briarproject.briar.android.privategroup.reveal.RevealContactsActivity;
 import org.briarproject.briar.android.privategroup.reveal.RevealContactsFragment;
+import org.briarproject.briar.android.remotewipe.RemoteWipeActivatedActivity;
+import org.briarproject.briar.android.remotewipe.RemoteWipeDisplayFragment;
+import org.briarproject.briar.android.remotewipe.RemoteWipeSetupActivity;
+import org.briarproject.briar.android.remotewipe.RemoteWipeSetupExplainerFragment;
+import org.briarproject.briar.android.remotewipe.WiperSelectorFragment;
+import org.briarproject.briar.android.remotewipe.activate.ActivateRemoteWipeActivity;
+import org.briarproject.briar.android.remotewipe.activate.ActivateRemoteWipeExplainerFragment;
+import org.briarproject.briar.android.remotewipe.revoke.RevokeRemoteWipeActivity;
+import org.briarproject.briar.android.remotewipe.revoke.RevokeRemoteWipeSuccessFragment;
 import org.briarproject.briar.android.reporting.CrashFragment;
 import org.briarproject.briar.android.reporting.CrashReportActivity;
 import org.briarproject.briar.android.reporting.ReportFormFragment;
@@ -80,20 +87,19 @@ import org.briarproject.briar.android.sharing.ShareBlogFragment;
 import org.briarproject.briar.android.sharing.ShareForumActivity;
 import org.briarproject.briar.android.sharing.ShareForumFragment;
 import org.briarproject.briar.android.sharing.SharingModule;
+import org.briarproject.briar.android.socialbackup.SetupExplainerFragment;
 import org.briarproject.briar.android.socialbackup.recover.CustodianRecoveryModeExplainerFragment;
 import org.briarproject.briar.android.socialbackup.CustodianSelectorFragment;
-import org.briarproject.briar.android.socialbackup.DistributedBackupActivity;
+import org.briarproject.briar.android.socialbackup.SocialBackupSetupActivity;
 import org.briarproject.briar.android.socialbackup.ExistingBackupFragment;
 import org.briarproject.briar.android.socialbackup.recover.CustodianReturnShardActivity;
 import org.briarproject.briar.android.socialbackup.recover.CustodianReturnShardErrorFragment;
 import org.briarproject.briar.android.socialbackup.recover.CustodianReturnShardFragment;
-import org.briarproject.briar.android.socialbackup.recover.CustodianReturnShardSuccessFragment;
 import org.briarproject.briar.android.socialbackup.recover.OwnerRecoveryModeErrorFragment;
 import org.briarproject.briar.android.socialbackup.recover.OwnerRecoveryModeExplainerFragment;
 import org.briarproject.briar.android.socialbackup.recover.OwnerRecoveryModeMainFragment;
 import org.briarproject.briar.android.socialbackup.recover.OwnerReturnShardActivity;
 import org.briarproject.briar.android.socialbackup.recover.OwnerReturnShardFragment;
-import org.briarproject.briar.android.socialbackup.ShardsSentFragment;
 import org.briarproject.briar.android.socialbackup.ThresholdSelectorFragment;
 import org.briarproject.briar.android.socialbackup.creation.CreateBackupModule;
 import org.briarproject.briar.android.socialbackup.recover.OwnerReturnShardSuccessFragment;
@@ -102,7 +108,6 @@ import org.briarproject.briar.android.socialbackup.recover.RestoreAccountDozeFra
 import org.briarproject.briar.android.socialbackup.recover.RestoreAccountSetPasswordFragment;
 import org.briarproject.briar.android.splash.SplashScreenActivity;
 import org.briarproject.briar.android.test.TestDataActivity;
-import org.briarproject.briar.api.socialbackup.recovery.RestoreAccount;
 
 import dagger.Component;
 
@@ -205,8 +210,6 @@ public interface ActivityComponent {
 
 	void inject(CrashReportActivity crashReportActivity);
 
-	void inject(NewOrRecoverActivity newOrRecoverActivity);
-
 	void inject(CustodianReturnShardActivity custodianReturnShardActivity);
 
     void inject(OwnerReturnShardActivity ownerReturnShardActivity);
@@ -215,6 +218,14 @@ public interface ActivityComponent {
 
     void inject(RestoreAccountActivity restoreAccountActivity);
 
+    void inject(RemoteWipeSetupActivity remoteWipeSetupActivity);
+
+    void inject(ActivateRemoteWipeActivity activateRemoteWipeActivity);
+
+    void inject(RemoteWipeActivatedActivity remoteWipeActivatedActivity);
+
+    void inject(RevokeRemoteWipeActivity revokeRemoteWipeActivity);
+
 	// Fragments
 
 	void inject(AuthorNameFragment fragment);
@@ -275,28 +286,22 @@ public interface ActivityComponent {
 
 	void inject(ThresholdSelectorFragment thresholdSelectorFragment);
 
-	void inject(DistributedBackupActivity distributedBackupActivity);
+	void inject(SocialBackupSetupActivity distributedBackupActivity);
 
 	void inject(DatabaseComponent databaseComponent);
 
 	void inject(CustodianSelectorFragment custodianSelectorFragment);
 
-	void inject(ShardsSentFragment shardsSentFragment);
-
 	void inject(OwnerRecoveryModeExplainerFragment ownerRecoveryModeExplainerFragment);
 
 	void inject(ExistingBackupFragment existingBackupFragment);
 
-	void inject(NewOrRecoverFragment newOrRecoverFragment);
-
 	void inject(CustodianRecoveryModeExplainerFragment custodianRecoveryModeExplainerFragment);
 
 	void inject(CustodianReturnShardFragment custodianReturnShardFragment);
 
 	void inject(OwnerReturnShardFragment ownerReturnShardFragment);
 
-	void inject(CustodianReturnShardSuccessFragment custodianReturnShardSuccessFragment);
-
 	void inject(RestoreAccountSetPasswordFragment restoreAccountSetPasswordFragment);
 
 	void inject(RestoreAccountDozeFragment restoreAccountDozeFragment);
@@ -306,4 +311,16 @@ public interface ActivityComponent {
 	void inject(OwnerRecoveryModeErrorFragment ownerRecoveryModeErrorFragment);
 
 	void inject(CustodianReturnShardErrorFragment custodianReturnShardErrorFragment);
+
+	void inject(WiperSelectorFragment wiperSelectorFragment);
+
+	void inject(RemoteWipeDisplayFragment remoteWipeDisplayFragment);
+
+	void inject(ActivateRemoteWipeExplainerFragment activateRemoteWipeExplainerFragment);
+
+	void inject(RevokeRemoteWipeSuccessFragment revokeRemoteWipeSuccessFragment);
+
+	void inject(RemoteWipeSetupExplainerFragment remoteWipeSetupExplainerFragment);
+
+	void inject(SetupExplainerFragment setupExplainerFragment);
 }

briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationActivity.java

@@ -52,6 +52,8 @@ import org.briarproject.briar.android.conversation.ConversationVisitor.TextCache
 import org.briarproject.briar.android.forum.ForumActivity;
 import org.briarproject.briar.android.introduction.IntroductionActivity;
 import org.briarproject.briar.android.privategroup.conversation.GroupActivity;
+import org.briarproject.briar.android.remotewipe.activate.ActivateRemoteWipeActivity;
+import org.briarproject.briar.android.remotewipe.revoke.RevokeRemoteWipeActivity;
 import org.briarproject.briar.android.socialbackup.recover.CustodianReturnShardActivity;
 import org.briarproject.briar.android.util.BriarSnackbarBuilder;
 import org.briarproject.briar.android.view.BriarRecyclerView;
@@ -371,6 +373,27 @@ public class ConversationActivity extends BriarActivity
 		observeOnce(viewModel.getContactItem(), this, contact ->
 				menu.findItem(R.id.action_set_alias).setEnabled(true));
 
+		// enable remote wipe action if available
+		observeOnce(viewModel.amRemoteWiper(), this, amWiper -> {
+			if (amWiper != null && amWiper) {
+				menu.findItem(R.id.action_remote_wipe).setEnabled(true);
+			}
+		});
+
+		// enable revoke remote wipe action if available
+		observeOnce(viewModel.isRemoteWiper(), this, isWiper -> {
+			if (isWiper != null && isWiper) {
+				menu.findItem(R.id.action_revoke_remote_wipe).setEnabled(true);
+			}
+		});
+
+		// enable help recover account action if available
+		observeOnce(viewModel.amCustodian(), this, enable -> {
+			if (enable) {
+				menu.findItem(R.id.action_help_recover_account).setEnabled(true);
+			}
+		});
+
 		return super.onCreateOptionsMenu(menu);
 	}
 
@@ -403,6 +426,18 @@ public class ConversationActivity extends BriarActivity
 				i.putExtra(CONTACT_ID, contactId.getInt());
 				startActivity(i);
 				return true;
+			case R.id.action_remote_wipe:
+				if (contactId == null) return false;
+				Intent r = new Intent(this, ActivateRemoteWipeActivity.class);
+				r.putExtra(CONTACT_ID, contactId.getInt());
+				startActivity(r);
+				return true;
+			case R.id.action_revoke_remote_wipe:
+				if (contactId == null) return false;
+				Intent s = new Intent(this, RevokeRemoteWipeActivity.class);
+				s.putExtra(CONTACT_ID, contactId.getInt());
+				startActivity(s);
+				return true;
 			default:
 				return super.onOptionsItemSelected(item);
 		}

briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationNoticeItem.java

@@ -3,6 +3,7 @@ package org.briarproject.briar.android.conversation;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.briar.api.conversation.ConversationRequest;
 import org.briarproject.briar.api.conversation.ConversationResponse;
+import org.briarproject.briar.api.remotewipe.RemoteWipeMessageHeader;
 import org.briarproject.briar.api.socialbackup.ShardMessageHeader;
 
 import javax.annotation.Nullable;
@@ -38,6 +39,13 @@ class ConversationNoticeItem extends ConversationItem {
 		this.msgText = null;
 	}
 
+	ConversationNoticeItem(@LayoutRes int layoutRes, String text,
+			RemoteWipeMessageHeader r) {
+		super(layoutRes, r);
+		this.text = text;
+		this.msgText = null;
+	}
+
 	@Nullable
 	String getMsgText() {
 		return msgText;

briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationViewModel.java

@@ -40,6 +40,8 @@ import org.briarproject.briar.api.messaging.PrivateMessage;
 import org.briarproject.briar.api.messaging.PrivateMessageFactory;
 import org.briarproject.briar.api.messaging.PrivateMessageHeader;
 import org.briarproject.briar.api.messaging.event.AttachmentReceivedEvent;
+import org.briarproject.briar.api.remotewipe.RemoteWipeManager;
+import org.briarproject.briar.api.socialbackup.SocialBackupManager;
 
 import java.util.Collection;
 import java.util.List;
@@ -84,6 +86,8 @@ public class ConversationViewModel extends DbViewModel
 	private final PrivateMessageFactory privateMessageFactory;
 	private final AttachmentRetriever attachmentRetriever;
 	private final AttachmentCreator attachmentCreator;
+	private final RemoteWipeManager remoteWipeManager;
+	private final SocialBackupManager socialBackupManager;
 
 	@Nullable
 	private ContactId contactId = null;
@@ -104,6 +108,9 @@ public class ConversationViewModel extends DbViewModel
 			new MutableLiveData<>();
 	private final MutableLiveEvent<PrivateMessageHeader> addedHeader =
 			new MutableLiveEvent<>();
+	private final MutableLiveData<Boolean> amRemoteWiper = new MutableLiveData<>();
+	private final MutableLiveData<Boolean> isRemoteWiper = new MutableLiveData<>();
+    private final MutableLiveData<Boolean> amCustodian = new MutableLiveData<>();
 
 	@Inject
 	ConversationViewModel(Application application,
@@ -118,7 +125,9 @@ public class ConversationViewModel extends DbViewModel
 			SettingsManager settingsManager,
 			PrivateMessageFactory privateMessageFactory,
 			AttachmentRetriever attachmentRetriever,
-			AttachmentCreator attachmentCreator) {
+			RemoteWipeManager remoteWipeManager,
+			AttachmentCreator attachmentCreator,
+			SocialBackupManager socialBackupManager) {
 		super(application, dbExecutor, lifecycleManager, db, androidExecutor);
 		this.db = db;
 		this.eventBus = eventBus;
@@ -129,6 +138,8 @@ public class ConversationViewModel extends DbViewModel
 		this.privateMessageFactory = privateMessageFactory;
 		this.attachmentRetriever = attachmentRetriever;
 		this.attachmentCreator = attachmentCreator;
+		this.remoteWipeManager = remoteWipeManager;
+		this.socialBackupManager = socialBackupManager;
 		messagingGroupId = map(contactItem, c ->
 				messagingManager.getContactGroup(c.getContact()).getId());
 		contactDeleted.setValue(false);
@@ -296,6 +307,19 @@ public class ConversationViewModel extends DbViewModel
 			onOnboardingShown(SHOW_ONBOARDING_INTRODUCTION);
 			showIntroductionOnboarding.postEvent(true);
 		}
+
+		// Check if we are a remote wiper for this contact
+		boolean amWiper = db.transactionWithResult(true,
+				txn -> remoteWipeManager.amWiper(txn, c));
+		amRemoteWiper.postValue(amWiper);
+
+		boolean isWiper = db.transactionWithResult(true,
+				txn -> remoteWipeManager.isWiper(txn, c));
+		isRemoteWiper.postValue(isWiper);
+		// Check if we are a social backup custodian for this contact
+		boolean amCustodianBool = db.transactionWithResult(true,
+				txn -> socialBackupManager.amCustodian(txn, c));
+		amCustodian.postValue(amCustodianBool);
 	}
 
 	@DatabaseExecutor
@@ -381,6 +405,18 @@ public class ConversationViewModel extends DbViewModel
 		return addedHeader;
 	}
 
+	LiveData<Boolean> amRemoteWiper() {
+		return amRemoteWiper;
+	}
+
+	LiveData<Boolean> isRemoteWiper() {
+		return isRemoteWiper;
+	}
+
+	LiveData<Boolean> amCustodian() {
+		return amCustodian;
+	}
+
 	@UiThread
 	void recheckFeaturesAndOnboarding(ContactId contactId) {
 		runOnDbThread(() -> {

briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationVisitor.java

@@ -6,6 +6,7 @@ import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.sync.MessageId;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.attachment.AttachmentItem;
+import org.briarproject.briar.android.util.UiUtils;
 import org.briarproject.briar.api.blog.BlogInvitationRequest;
 import org.briarproject.briar.api.blog.BlogInvitationResponse;
 import org.briarproject.briar.api.conversation.ConversationMessageVisitor;
@@ -16,6 +17,7 @@ import org.briarproject.briar.api.introduction.IntroductionResponse;
 import org.briarproject.briar.api.messaging.PrivateMessageHeader;
 import org.briarproject.briar.api.privategroup.invitation.GroupInvitationRequest;
 import org.briarproject.briar.api.privategroup.invitation.GroupInvitationResponse;
+import org.briarproject.briar.api.remotewipe.RemoteWipeMessageHeader;
 import org.briarproject.briar.api.socialbackup.ShardMessageHeader;
 
 import java.util.List;
@@ -308,6 +310,55 @@ class ConversationVisitor implements
 		}
 	}
 
+	@Override
+	public ConversationItem visitRemoteWipeMessage(RemoteWipeMessageHeader r) {
+		switch (r.getMessageType()) {
+			case SETUP:
+				if (r.isLocal()) {
+					String text = ctx.getString(R.string.remote_wipe_setup_sent,
+							contactName.getValue());
+					return new ConversationNoticeItem(
+							R.layout.list_item_conversation_notice_out, text,
+							r);
+				} else {
+					String text =
+							ctx.getString(R.string.remote_wipe_setup_received,
+									contactName.getValue());
+					return new ConversationNoticeItem(
+							R.layout.list_item_conversation_notice_in, text, r);
+				}
+			case WIPE:
+				String text = ctx.getString(R.string.remote_wipe_wipe_sent,
+						contactName.getValue()) + " " + UiUtils
+						.formatDateAbsolute(ctx, r.getMessageExpiry());
+				return new ConversationNoticeItem(
+						R.layout.list_item_conversation_notice_out, text, r);
+			case CONFIRM:
+				System.out.println("Processing confirm message");
+				String confirmText =
+						ctx.getString(R.string.remote_wipe_confirm_received,
+								contactName.getValue());
+				return new ConversationNoticeItem(
+						R.layout.list_item_conversation_notice_in, confirmText, r);
+			default: // REVOKE
+				String revokeText;
+				if (r.isLocal()) {
+					revokeText = ctx.getString(R.string.remote_wipe_revoke_sent,
+							contactName.getValue());
+					return new ConversationNoticeItem(
+							R.layout.list_item_conversation_notice_out,
+							revokeText, r);
+				} else {
+					revokeText =
+							ctx.getString(R.string.remote_wipe_revoke_received,
+									contactName.getValue());
+					return new ConversationNoticeItem(
+							R.layout.list_item_conversation_notice_in,
+							revokeText, r);
+				}
+		}
+	}
+
 	interface TextCache {
 		@Nullable
 		String getText(MessageId m);

briar-android/src/main/java/org/briarproject/briar/android/login/StartupActivity.java

@@ -7,7 +7,6 @@ import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
 import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.BriarService;
-import org.briarproject.briar.android.account.NewOrRecoverActivity;
 import org.briarproject.briar.android.account.SetupActivity;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.activity.BaseActivity;
@@ -108,7 +107,7 @@ public class StartupActivity extends BaseActivity implements
 	private void onAccountDeleted() {
 		setResult(RESULT_CANCELED);
 		finish();
-		Intent i = new Intent(this, NewOrRecoverActivity.class);
+		Intent i = new Intent(this, SetupActivity.class);
 		i.addFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TOP |
 				FLAG_ACTIVITY_CLEAR_TASK | FLAG_ACTIVITY_TASK_ON_HOME);
 		startActivity(i);

briar-android/src/main/java/org/briarproject/briar/android/navdrawer/NavDrawerActivity.java

@@ -138,6 +138,7 @@ public class NavDrawerActivity extends BriarActivity implements
 			navDrawerViewModel.showExpiryWarning()
 					.observe(this, this::showExpiryWarning);
 		}
+
 		navDrawerViewModel.shouldAskForDozeWhitelisting().observe(this, ask -> {
 			if (ask) showDozeDialog(getString(R.string.setup_doze_intro));
 		});
@@ -158,7 +159,8 @@ public class NavDrawerActivity extends BriarActivity implements
 			@Override
 			public void onDrawerOpened(View drawerView) {
 				super.onDrawerOpened(drawerView);
-				navDrawerViewModel.checkTransportsOnboarding();
+//				navDrawerViewModel.checkTransportsOnboarding();
+				navDrawerViewModel.checkSocialBackupOnboarding();
 			}
 		};
 		drawerLayout.addDrawerListener(drawerToggle);
@@ -167,9 +169,12 @@ public class NavDrawerActivity extends BriarActivity implements
 		initializeTransports();
 		transportsView.setAdapter(transportsAdapter);
 
-		observeOnce(navDrawerViewModel.showTransportsOnboarding(), this, show ->
-				observeOnce(torIcon, this, imageView ->
-						showTransportsOnboarding(show, imageView)));
+//		observeOnce(navDrawerViewModel.showTransportsOnboarding(), this, show ->
+//				observeOnce(torIcon, this, imageView ->
+//						showTransportsOnboarding(show, imageView)));
+
+		observeOnce(navDrawerViewModel.showSocialBackupOnboarding(), this,
+				this::showSocialBackupOnboarding);
 
 		lockManager.isLockable().observe(this, this::setLockVisible);
 
@@ -468,6 +473,22 @@ public class NavDrawerActivity extends BriarActivity implements
 		}
 	}
 
+	private void showSocialBackupOnboarding(boolean show) {
+		if (show) {
+			new MaterialTapTargetPrompt.Builder(NavDrawerActivity.this,
+					R.style.OnboardingDialogTheme)
+					.setTarget(R.id.nav_btn_settings)
+					.setPrimaryText(R.string.social_backup_onboarding_title)
+					.setSecondaryText(R.string.social_backup_onboarding_long)
+					.setFocalRadius((float) 350)
+					.setFocalPadding((float) 100)
+					.setBackgroundColour(
+							ContextCompat.getColor(this, R.color.briar_primary))
+					.show();
+			navDrawerViewModel.socialBackupOnboardingShown();
+		}
+	}
+
 	private static class Transport {
 
 		private final TransportId id;

briar-android/src/main/java/org/briarproject/briar/android/navdrawer/NavDrawerViewModel.java

@@ -39,6 +39,8 @@ public class NavDrawerViewModel extends DbViewModel {
 	private static final String EXPIRY_DATE_WARNING = "expiryDateWarning";
 	private static final String SHOW_TRANSPORTS_ONBOARDING =
 			"showTransportsOnboarding";
+	private static final String SHOW_SOCIAL_BACKUP_ONBOARDING =
+			"showSocialBackupOnboarding";
 
 	private final SettingsManager settingsManager;
 
@@ -48,6 +50,8 @@ public class NavDrawerViewModel extends DbViewModel {
 			new MutableLiveData<>();
 	private final MutableLiveData<Boolean> showTransportsOnboarding =
 			new MutableLiveData<>();
+	private final MutableLiveData<Boolean> showSocialBackupOnboarding =
+			new MutableLiveData<>();
 
 	@Inject
 	NavDrawerViewModel(Application app,
@@ -142,6 +146,11 @@ public class NavDrawerViewModel extends DbViewModel {
 		return showTransportsOnboarding;
 	}
 
+	@UiThread
+	LiveData<Boolean> showSocialBackupOnboarding() {
+		return showSocialBackupOnboarding;
+	}
+
 	@UiThread
 	void checkTransportsOnboarding() {
 		if (showTransportsOnboarding.getValue() != null) return;
@@ -171,4 +180,35 @@ public class NavDrawerViewModel extends DbViewModel {
 			}
 		});
 	}
+
+	@UiThread
+	void checkSocialBackupOnboarding() {
+		if (showSocialBackupOnboarding.getValue() != null) return;
+		runOnDbThread(() -> {
+			try {
+				Settings settings =
+						settingsManager.getSettings(SETTINGS_NAMESPACE);
+				boolean show =
+						settings.getBoolean(SHOW_SOCIAL_BACKUP_ONBOARDING,
+								true);
+				showSocialBackupOnboarding.postValue(show);
+			} catch (DbException e) {
+				logException(LOG, WARNING, e);
+			}
+		});
+	}
+
+	@UiThread
+	void socialBackupOnboardingShown() {
+		showSocialBackupOnboarding.setValue(false);
+		runOnDbThread(() -> {
+			try {
+				Settings settings = new Settings();
+				settings.putBoolean(SHOW_SOCIAL_BACKUP_ONBOARDING, false);
+				settingsManager.mergeSettings(settings, SETTINGS_NAMESPACE);
+			} catch (DbException e) {
+				logException(LOG, WARNING, e);
+			}
+		});
+	}
 }

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/RemoteWipeActivatedActivity.java

@@ -0,0 +1,41 @@
+package org.briarproject.briar.android.remotewipe;
+
+import android.os.Bundle;
+
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.activity.BriarActivity;
+
+import javax.annotation.Nullable;
+import javax.inject.Inject;
+
+import androidx.lifecycle.ViewModelProvider;
+
+
+public class RemoteWipeActivatedActivity extends BriarActivity {
+
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+	RemoteWipeActivatedViewModel viewModel;
+
+	@Override
+	public void injectActivity(ActivityComponent component) {
+		component.inject(this);
+
+		viewModel = new ViewModelProvider(this, viewModelFactory)
+				.get(RemoteWipeActivatedViewModel.class);
+	}
+
+	@Override
+	public void onCreate(@Nullable Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+
+		viewModel.getConfirmSent()
+				.observeEvent(this, confirmed -> {
+					if (confirmed) {
+						signOut(true, true);
+					}
+				});
+
+		viewModel.sendConfirmMessages();
+	}
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/RemoteWipeActivatedViewModel.java

@@ -0,0 +1,67 @@
+package org.briarproject.briar.android.remotewipe;
+
+import android.app.Application;
+
+import org.briarproject.bramble.api.FormatException;
+import org.briarproject.bramble.api.db.DatabaseComponent;
+import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.bramble.api.event.Event;
+import org.briarproject.bramble.api.event.EventBus;
+import org.briarproject.bramble.api.event.EventListener;
+import org.briarproject.bramble.api.sync.event.MessagesSentEvent;
+import org.briarproject.briar.android.viewmodel.LiveEvent;
+import org.briarproject.briar.android.viewmodel.MutableLiveEvent;
+import org.briarproject.briar.api.remotewipe.RemoteWipeManager;
+
+import javax.inject.Inject;
+
+import androidx.annotation.NonNull;
+import androidx.lifecycle.AndroidViewModel;
+
+public class RemoteWipeActivatedViewModel extends AndroidViewModel implements
+		EventListener {
+	private final RemoteWipeManager remoteWipeManager;
+	private final DatabaseComponent db;
+	private final MutableLiveEvent<Boolean> confirmSent =
+			new MutableLiveEvent<>();
+	private int numberOfConfirmMessages;
+	private int messagesSent = 0;
+
+	@Inject
+	RemoteWipeActivatedViewModel(
+			@NonNull Application application,
+			RemoteWipeManager remoteWipeManager,
+			DatabaseComponent db, EventBus eventBus) {
+		super(application);
+		this.remoteWipeManager = remoteWipeManager;
+		this.db = db;
+
+		eventBus.addListener(this);
+	}
+
+	public void sendConfirmMessages() {
+		try {
+			numberOfConfirmMessages = db.transactionWithResult(false,
+					remoteWipeManager::sendConfirmMessages);
+		} catch (DbException | FormatException e) {
+			// If there is a problem sending the messages, just wipe
+			confirmSent.postEvent(true);
+		}
+	}
+
+	public LiveEvent<Boolean> getConfirmSent() {
+		return confirmSent;
+	}
+
+	@Override
+	public void eventOccurred(Event e) {
+		// As soon as we know the confirm messages are sent, we can wipe
+		if (e instanceof MessagesSentEvent) {
+			messagesSent++;
+			if (messagesSent >= numberOfConfirmMessages) {
+				confirmSent.postEvent(true);
+			}
+		}
+	}
+}
+

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/RemoteWipeDisplayFragment.java

@@ -0,0 +1,115 @@
+package org.briarproject.briar.android.remotewipe;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.contact.ContactListAdapter;
+import org.briarproject.briar.android.contact.ContactListItem;
+import org.briarproject.briar.android.contact.OnContactClickListener;
+import org.briarproject.briar.android.fragment.BaseFragment;
+import org.briarproject.briar.android.view.BriarRecyclerView;
+
+import javax.inject.Inject;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.recyclerview.widget.LinearLayoutManager;
+
+public class RemoteWipeDisplayFragment extends BaseFragment
+		implements OnContactClickListener<ContactListItem> {
+
+	public static final String TAG = RemoteWipeDisplayFragment.class.getName();
+
+	private final ContactListAdapter adapter = new ContactListAdapter(this);
+	private BriarRecyclerView list;
+
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+
+	private RemoteWipeSetupViewModel viewModel;
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+		viewModel = new ViewModelProvider(requireActivity(), viewModelFactory)
+				.get(RemoteWipeSetupViewModel.class);
+	}
+
+	@Nullable
+	@Override
+	public View onCreateView(@NonNull LayoutInflater inflater,
+			@Nullable ViewGroup container,
+			@Nullable Bundle savedInstanceState) {
+
+		// change toolbar text (relevant when navigating back to this fragment)
+		requireActivity().setTitle(R.string.assigned_wipers);
+
+		View contentView = inflater.inflate(R.layout.fragment_remote_wipe_display, container, false);
+
+		viewModel.getWiperContactIds();
+		list = contentView.findViewById(R.id.wiperList);
+		list.setLayoutManager(new LinearLayoutManager(getActivity()));
+		list.setAdapter(adapter);
+		list.setEmptyText(R.string.no_contacts);
+
+		viewModel.getContactListItems().observe(getViewLifecycleOwner(),
+				result -> result.onError(this::handleException)
+						.onSuccess(adapter::submitList)
+		);
+
+		Button changeWipersButton = contentView.findViewById(R.id.button_change);
+		changeWipersButton.setOnClickListener(e -> viewModel.onModifyWipers());
+		
+		Button disableRemoteWipeButton = contentView.findViewById(R.id.button_cancel);
+		disableRemoteWipeButton.setOnClickListener(e -> viewModel.onDisableRemoteWipe());
+
+		viewModel.getState().observe(getViewLifecycleOwner(), this::onStateChanged);
+		return contentView;
+	}
+
+	@Override
+	public String getUniqueTag() {
+		return TAG;
+	}
+
+	@Override
+	public void onItemClick(View view, ContactListItem item) {
+	}
+
+	@Override
+	public void onStart() {
+		super.onStart();
+		list.startPeriodicUpdate();
+	}
+
+	@Override
+	public void onStop() {
+		super.onStop();
+		list.stopPeriodicUpdate();
+	}
+
+	private void onStateChanged(RemoteWipeSetupState state) {
+		if (state.equals(RemoteWipeSetupState.DISABLED)) {
+			showDisabledDialog();
+		}
+	}
+
+	private void showDisabledDialog() {
+		AlertDialog.Builder builder = new AlertDialog.Builder(requireContext(),
+				R.style.BriarDialogTheme);
+		builder.setTitle(R.string.remote_wipe_disable_success);
+		builder.setMessage(R.string.remote_wipe_disable_success_explain);
+		builder.setPositiveButton(R.string.ok,
+				(dialog, which) -> viewModel.onSuccessDismissed());
+		builder.setIcon(R.drawable.ic_baseline_done_outline_24);
+		AlertDialog dialog = builder.create();
+		dialog.show();
+	}
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/RemoteWipeModule.java

@@ -0,0 +1,38 @@
+package org.briarproject.briar.android.remotewipe;
+
+import org.briarproject.briar.android.remotewipe.activate.ActivateRemoteWipeViewModel;
+import org.briarproject.briar.android.remotewipe.revoke.RevokeRemoteWipeViewModel;
+import org.briarproject.briar.android.viewmodel.ViewModelKey;
+
+import androidx.lifecycle.ViewModel;
+import dagger.Binds;
+import dagger.Module;
+import dagger.multibindings.IntoMap;
+
+@Module
+public abstract class RemoteWipeModule {
+
+	@Binds
+	@IntoMap
+	@ViewModelKey(RemoteWipeSetupViewModel.class)
+	abstract ViewModel bindRemoteWipeSetupViewModel(
+			RemoteWipeSetupViewModel remoteWipeSetupViewModel);
+
+	@Binds
+	@IntoMap
+	@ViewModelKey(ActivateRemoteWipeViewModel.class)
+	abstract ViewModel bindActivateRemoteWipeViewModel(
+			ActivateRemoteWipeViewModel activateRemoteWipeViewModel);
+
+	@Binds
+	@IntoMap
+	@ViewModelKey(RevokeRemoteWipeViewModel.class)
+	abstract ViewModel bindRevokeRemoteWipeViewModel(
+			RevokeRemoteWipeViewModel RevokeRemoteWipeViewModel);
+
+	@Binds
+	@IntoMap
+	@ViewModelKey(RemoteWipeActivatedViewModel.class)
+	abstract ViewModel bindRemoteWipeActivatedViewModel(
+			RemoteWipeActivatedViewModel remoteWipeActivatedViewModel);
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/RemoteWipeSetupActivity.java

@@ -0,0 +1,76 @@
+package org.briarproject.briar.android.remotewipe;
+
+import android.os.Bundle;
+import android.widget.Toast;
+
+import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.activity.BriarActivity;
+import org.briarproject.briar.android.contactselection.ContactSelectorListener;
+import org.briarproject.briar.android.fragment.BaseFragment;
+import org.briarproject.briar.android.socialbackup.ThresholdSelectorFragment;
+
+import java.util.Collection;
+
+import javax.inject.Inject;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.lifecycle.ViewModelProvider;
+
+public class RemoteWipeSetupActivity extends BriarActivity implements
+		BaseFragment.BaseFragmentListener, ContactSelectorListener {
+
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+	RemoteWipeSetupViewModel viewModel;
+
+	@Override
+	public void injectActivity(ActivityComponent component) {
+		component.inject(this);
+
+		viewModel = new ViewModelProvider(this, viewModelFactory)
+				.get(RemoteWipeSetupViewModel.class);
+
+		viewModel.getState().observe(this, this::onStateChanged);
+	}
+
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_distributed_backup);
+        if (viewModel.remoteWipeIsSetup()) {
+        	showInitialFragment(new RemoteWipeDisplayFragment());
+        } else {
+	        showInitialFragment(new RemoteWipeSetupExplainerFragment());
+        }
+
+	}
+
+	@Override
+	public void contactsSelected(Collection<ContactId> contacts) {
+		Toast.makeText(this,
+				String.format("Selected %d contacts", contacts.size()),
+				Toast.LENGTH_SHORT).show();
+		try {
+			viewModel.setupRemoteWipe(contacts);
+		} catch (Exception e) {
+			// Display error fragment
+		}
+	}
+
+	private void onStateChanged(RemoteWipeSetupState state) {
+		if (state.equals(RemoteWipeSetupState.FAILED)) {
+			Toast.makeText(this,
+					R.string.remote_wipe_setup_failed,
+					Toast.LENGTH_LONG).show();
+			finish();
+		} else if (state.equals(RemoteWipeSetupState.SELECTING)) {
+			showNextFragment(WiperSelectorFragment.newInstance());
+		} else if (state.equals(RemoteWipeSetupState.FINISHED)) {
+			finish();
+		} else if (state.equals(RemoteWipeSetupState.MODIFY)) {
+			showNextFragment(WiperSelectorFragment.newInstance());
+		}
+	}
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/RemoteWipeSetupExplainerFragment.java

@@ -0,0 +1,57 @@
+package org.briarproject.briar.android.remotewipe;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.fragment.BaseFragment;
+
+import javax.inject.Inject;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.lifecycle.ViewModelProvider;
+
+public class RemoteWipeSetupExplainerFragment extends
+		BaseFragment {
+
+		public static final String TAG =
+				RemoteWipeSetupExplainerFragment.class.getName();
+
+		@Inject
+		ViewModelProvider.Factory viewModelFactory;
+
+		private RemoteWipeSetupViewModel viewModel;
+
+		@Override
+		public void injectFragment(ActivityComponent component) {
+			component.inject(this);
+			viewModel = new ViewModelProvider(requireActivity(), viewModelFactory)
+					.get(RemoteWipeSetupViewModel.class);
+		}
+
+		@Nullable
+		@Override
+		public View onCreateView(@NonNull LayoutInflater inflater,
+				@Nullable ViewGroup container,
+				@Nullable Bundle savedInstanceState) {
+			View view = inflater.inflate(R.layout.fragment_remote_wipe_setup_explainer,
+					container, false);
+
+			Button confirmButton = view.findViewById(R.id.button_confirm);
+			confirmButton.setOnClickListener(e -> viewModel.onExplainerConfirmed());
+
+			Button cancelButton = view.findViewById(R.id.button_cancel);
+			cancelButton.setOnClickListener(e -> viewModel.onExplainerCancelled());
+			return view;
+		}
+
+		@Override
+		public String getUniqueTag() {
+			return TAG;
+		}
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/RemoteWipeSetupState.java

@@ -0,0 +1,10 @@
+package org.briarproject.briar.android.remotewipe;
+
+public enum RemoteWipeSetupState {
+	FAILED,
+	SUCCESS,
+	FINISHED,
+	SELECTING,
+	MODIFY,
+	DISABLED
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/RemoteWipeSetupViewModel.java

@@ -0,0 +1,140 @@
+package org.briarproject.briar.android.remotewipe;
+
+import android.app.Application;
+
+import org.briarproject.bramble.api.FormatException;
+import org.briarproject.bramble.api.connection.ConnectionRegistry;
+import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.bramble.api.contact.ContactManager;
+import org.briarproject.bramble.api.db.DatabaseComponent;
+import org.briarproject.bramble.api.db.DatabaseExecutor;
+import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.bramble.api.event.EventBus;
+import org.briarproject.bramble.api.lifecycle.LifecycleManager;
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+import org.briarproject.bramble.api.system.AndroidExecutor;
+import org.briarproject.briar.android.contact.ContactsViewModel;
+import org.briarproject.briar.api.conversation.ConversationManager;
+import org.briarproject.briar.api.identity.AuthorManager;
+import org.briarproject.briar.api.remotewipe.RemoteWipeManager;
+
+import java.text.Normalizer;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.concurrent.Executor;
+
+import javax.inject.Inject;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.UiThread;
+import androidx.lifecycle.MutableLiveData;
+
+@NotNullByDefault
+public class RemoteWipeSetupViewModel extends ContactsViewModel {
+	private final RemoteWipeManager remoteWipeManager;
+	private final DatabaseComponent db;
+	private List<ContactId> wiperContactIds;
+	private final MutableLiveData<RemoteWipeSetupState> state =
+			new MutableLiveData<>();
+
+	private final ContactManager contactManager;
+	private final AuthorManager authorManager;
+
+	@Inject
+	RemoteWipeSetupViewModel(
+			@NonNull Application application,
+			RemoteWipeManager remoteWipeManager,
+			@DatabaseExecutor Executor dbExecutor,
+			LifecycleManager lifecycleManager,
+			AuthorManager authorManager,
+			ConversationManager conversationManager,
+			ConnectionRegistry connectionRegistry,
+			EventBus eventBus,
+			AndroidExecutor androidExecutor,
+			ContactManager contactManager,
+			DatabaseComponent db) {
+		super(application, dbExecutor, lifecycleManager, db, androidExecutor,
+				contactManager, authorManager, conversationManager,
+				connectionRegistry, eventBus);
+		this.remoteWipeManager = remoteWipeManager;
+		this.contactManager = contactManager;
+		this.authorManager = authorManager;
+		this.db = db;
+		getWiperContactIds();
+		loadContacts();
+	}
+
+	public boolean remoteWipeIsSetup() {
+		try {
+			return db.transactionWithResult(true,
+					txn -> {
+						boolean isSetup = remoteWipeManager.remoteWipeIsSetup(txn);
+						if (isSetup) wiperContactIds = remoteWipeManager.getWiperContactIds(txn);
+						return isSetup;
+					});
+		} catch (DbException e) {
+			return false;
+		}
+	}
+
+	public List<ContactId> getWiperContactIds() {
+		try {
+			wiperContactIds = db.transactionWithResult(true,
+					remoteWipeManager::getWiperContactIds);
+		} catch (DbException ignored) {
+			return new ArrayList<ContactId>();
+		}
+		return wiperContactIds;
+	}
+
+	@UiThread
+	public void onExplainerConfirmed() {
+		state.postValue(RemoteWipeSetupState.SELECTING);
+	}
+
+	@UiThread
+	public void onExplainerCancelled() {
+		state.postValue(RemoteWipeSetupState.FINISHED);
+	}
+
+	@UiThread
+	public void onSuccessDismissed() {
+		state.postValue(RemoteWipeSetupState.FINISHED);
+	}
+
+	@UiThread
+	public void onModifyWipers() {
+		state.postValue(RemoteWipeSetupState.MODIFY);
+	}
+
+	@UiThread
+	public void onDisableRemoteWipe() {
+		try {
+			db.transaction(false, remoteWipeManager::revokeAll);
+			state.postValue(RemoteWipeSetupState.DISABLED);
+		} catch (DbException | FormatException e) {
+			e.printStackTrace();
+			state.postValue(RemoteWipeSetupState.FINISHED);
+		}
+	}
+
+	public void setupRemoteWipe(Collection<ContactId> wipers)
+			throws DbException, FormatException {
+		db.transaction(false, txn -> {
+			remoteWipeManager.setup(txn, (List<ContactId>) wipers);
+			state.postValue(RemoteWipeSetupState.SUCCESS);
+		});
+	}
+
+	@Override
+	protected boolean displayContact(ContactId contactId) {
+		// Check if contact is a wiper
+		return wiperContactIds.contains(contactId);
+	}
+
+	public MutableLiveData<RemoteWipeSetupState> getState() {
+		return state;
+	}
+}
+

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/WiperSelectorFragment.java

@@ -0,0 +1,118 @@
+package org.briarproject.briar.android.remotewipe;
+
+import android.os.Bundle;
+import android.view.MenuItem;
+import android.widget.Toast;
+
+import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
+import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.contactselection.BaseContactSelectorAdapter;
+import org.briarproject.briar.android.contactselection.ContactSelectorController;
+import org.briarproject.briar.android.contactselection.ContactSelectorFragment;
+import org.briarproject.briar.android.contactselection.SelectableContactItem;
+import org.briarproject.briar.android.socialbackup.creation.CreateBackupController;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.inject.Inject;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
+import androidx.lifecycle.ViewModelProvider;
+
+@MethodsNotNullByDefault
+@ParametersNotNullByDefault
+public class WiperSelectorFragment extends ContactSelectorFragment {
+
+	public static final String TAG = WiperSelectorFragment.class.getName();
+
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+
+	private RemoteWipeSetupViewModel viewModel;
+
+	@Inject
+	CreateBackupController controller;
+
+	public static WiperSelectorFragment newInstance() {
+		Bundle args = new Bundle();
+
+		WiperSelectorFragment
+				fragment = new WiperSelectorFragment();
+		fragment.setArguments(args);
+
+		return fragment;
+	}
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+		viewModel = new ViewModelProvider(requireActivity(), viewModelFactory)
+				.get(RemoteWipeSetupViewModel.class);
+	}
+
+	@Override
+	public void onCreate(@Nullable Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		selectedContacts.addAll(viewModel.getWiperContactIds());
+		requireActivity().setTitle(R.string.title_select_wipers);
+
+		viewModel.getState().observe(this, this::onStateChanged);
+	}
+
+	private void onStateChanged(RemoteWipeSetupState state) {
+		if (state.equals(RemoteWipeSetupState.SUCCESS)) {
+		  showSuccessDialog();
+		}
+	}
+
+	@Override
+	protected ContactSelectorController<SelectableContactItem> getController() {
+		return controller;
+	}
+
+	@Override
+	public String getUniqueTag() {
+		return TAG;
+	}
+
+	@Override
+	protected void onSelectionChanged() {
+		super.onSelectionChanged();
+		if (menu == null) return;
+		MenuItem item = menu.findItem(R.id.action_contacts_selected);
+		if (item == null) return;
+
+		BaseContactSelectorAdapter a = adapter;
+		selectedContacts = a.getSelectedContactIds();
+
+		int n = selectedContacts.size();
+		int min = 2;
+		boolean enough = n >= min;
+
+		item.setVisible(enough);
+		if (n == 0) {
+			Toast.makeText(getContext(), String.format(getString(R.string.select_at_least_n_contacts), min),
+					Toast.LENGTH_SHORT).show();
+		} else if (n < min) {
+			Toast.makeText(getContext(), String.format(getString(R.string.select_at_least_n_more_contacts), min - n),
+					Toast.LENGTH_SHORT).show();
+		}
+	}
+
+	private void showSuccessDialog() {
+		AlertDialog.Builder builder = new AlertDialog.Builder(requireContext(),
+				R.style.BriarDialogTheme);
+		builder.setTitle(R.string.remote_wipe_setup_success);
+		builder.setPositiveButton(R.string.ok,
+				(dialog, which) -> viewModel.onSuccessDismissed());
+		builder.setIcon(R.drawable.ic_baseline_done_outline_24);
+		AlertDialog dialog = builder.create();
+		dialog.show();
+	}
+
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/activate/ActivateRemoteWipeActivity.java

@@ -0,0 +1,66 @@
+package org.briarproject.briar.android.remotewipe.activate;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.widget.Toast;
+
+import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.activity.BriarActivity;
+import org.briarproject.briar.android.fragment.BaseFragment;
+
+import javax.inject.Inject;
+
+import androidx.lifecycle.ViewModelProvider;
+
+import static org.briarproject.briar.android.conversation.ConversationActivity.CONTACT_ID;
+
+public class ActivateRemoteWipeActivity extends BriarActivity implements
+		BaseFragment.BaseFragmentListener {
+
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+	ActivateRemoteWipeViewModel viewModel;
+
+	@Override
+	public void injectActivity(ActivityComponent component) {
+		component.inject(this);
+
+		viewModel = new ViewModelProvider(this, viewModelFactory)
+				.get(ActivateRemoteWipeViewModel.class);
+
+		viewModel.getState().observe(this, this::onStateChanged);
+	}
+
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_distributed_backup);
+
+		if (savedInstanceState == null) {
+			Intent intent = getIntent();
+			int id = intent.getIntExtra(CONTACT_ID, -1);
+			if (id == -1) throw new IllegalStateException("No ContactId");
+			ContactId contactId = new ContactId(id);
+			viewModel.setContactId(contactId);
+			showInitialFragment(new ActivateRemoteWipeExplainerFragment());
+		}
+	}
+
+	private void onStateChanged(ActivateRemoteWipeState state) {
+	   switch(state) {
+		   case FAILED:
+			   Toast.makeText(this,
+					   R.string.remote_wipe_activate_failure,
+					   Toast.LENGTH_LONG).show();
+			   break;
+		   case SUCCESS:
+		   	   // Handled by the popup dialog on the explainer
+			   break;
+		   default: // FINISHED or CANCELLED
+			   finish();
+			   break;
+	   }
+	}
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/activate/ActivateRemoteWipeExplainerFragment.java

@@ -0,0 +1,83 @@
+package org.briarproject.briar.android.remotewipe.activate;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.TextView;
+
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.fragment.BaseFragment;
+
+import javax.inject.Inject;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
+import androidx.lifecycle.ViewModelProvider;
+
+public class ActivateRemoteWipeExplainerFragment extends BaseFragment {
+
+	public static final String TAG =
+			ActivateRemoteWipeExplainerFragment.class.getName();
+
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+
+	private ActivateRemoteWipeViewModel viewModel;
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+		viewModel = new ViewModelProvider(requireActivity(), viewModelFactory)
+				.get(ActivateRemoteWipeViewModel.class);
+	}
+
+	@Nullable
+	@Override
+	public View onCreateView(@NonNull LayoutInflater inflater,
+			@Nullable ViewGroup container,
+			@Nullable Bundle savedInstanceState) {
+		View view = inflater.inflate(R.layout.fragment_activate_remote_wipe_explainer,
+				container, false);
+
+		TextView titleText = view.findViewById(R.id.textView);
+	    titleText.setText(String.format(getString(R.string.remote_wipe_activate_explain_short), viewModel.getContactName()));
+
+		TextView explainText = view.findViewById(R.id.textViewExplain);
+		explainText.setText(String.format(getString(R.string.remote_wipe_activate_explain_long), viewModel.getContactName()));
+
+		Button cancelButton = view.findViewById(R.id.button_cancel);
+		cancelButton.setOnClickListener(e -> viewModel.onCancelClicked());
+
+		Button confirmButton = view.findViewById(R.id.button_confirm);
+		confirmButton.setOnClickListener(e -> viewModel.onConfirmClicked());
+
+		viewModel.getState().observe(getViewLifecycleOwner(), this::onStateChanged);
+		return view;
+	}
+
+	private void onStateChanged(ActivateRemoteWipeState state) {
+		if (state == ActivateRemoteWipeState.SUCCESS) {
+			showSuccessDialog();
+		}
+	}
+
+	@Override
+	public String getUniqueTag() {
+		return TAG;
+	}
+
+	private void showSuccessDialog() {
+		AlertDialog.Builder builder = new AlertDialog.Builder(requireContext(),
+				R.style.BriarDialogTheme);
+		builder.setTitle(R.string.remote_wipe_activate_success);
+		builder.setPositiveButton(R.string.ok,
+				(dialog, which) -> viewModel.onSuccessDismissed());
+		builder.setIcon(R.drawable.ic_baseline_done_outline_24);
+		AlertDialog dialog = builder.create();
+		dialog.show();
+	}
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/activate/ActivateRemoteWipeState.java

@@ -0,0 +1,8 @@
+package org.briarproject.briar.android.remotewipe.activate;
+
+public enum ActivateRemoteWipeState {
+	FAILED,
+	SUCCESS,
+	FINISHED,
+	CANCELLED
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/activate/ActivateRemoteWipeViewModel.java

@@ -0,0 +1,89 @@
+package org.briarproject.briar.android.remotewipe.activate;
+
+import android.app.Application;
+
+import org.briarproject.bramble.api.FormatException;
+import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.bramble.api.contact.ContactManager;
+import org.briarproject.bramble.api.db.DatabaseComponent;
+import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.briar.android.remotewipe.RemoteWipeSetupState;
+import org.briarproject.briar.android.util.UiUtils;
+import org.briarproject.briar.api.remotewipe.RemoteWipeManager;
+
+import java.text.Normalizer;
+
+import javax.inject.Inject;
+
+import androidx.annotation.NonNull;
+import androidx.lifecycle.AndroidViewModel;
+import androidx.lifecycle.MutableLiveData;
+
+public class ActivateRemoteWipeViewModel extends AndroidViewModel {
+
+	private final RemoteWipeManager remoteWipeManager;
+	private final ContactManager contactManager;
+	private final DatabaseComponent db;
+	private final MutableLiveData<ActivateRemoteWipeState> state = new MutableLiveData<>();
+	private ContactId contactId;
+	private String contactName;
+
+	@Inject
+	public ActivateRemoteWipeViewModel(
+			@NonNull Application application,
+			RemoteWipeManager remoteWipeManager,
+			ContactManager contactManager,
+			DatabaseComponent db) {
+		super(application);
+		this.remoteWipeManager = remoteWipeManager;
+		this.contactManager = contactManager;
+		this.db = db;
+	}
+
+	private void activateWipe() {
+		try {
+			db.transaction(false, txn -> {
+				try {
+					remoteWipeManager.wipe(txn, db.getContact(txn, contactId));
+				} catch (DbException e) {
+					state.postValue(ActivateRemoteWipeState.FAILED);
+				} catch (FormatException e) {
+					state.postValue(ActivateRemoteWipeState.FAILED);
+				}
+				state.postValue(ActivateRemoteWipeState.SUCCESS);
+			});
+		} catch (DbException e) {
+			state.postValue(ActivateRemoteWipeState.FAILED);
+		}
+	}
+
+	public MutableLiveData<ActivateRemoteWipeState> getState() {
+		return state;
+	}
+
+	public void setContactId(ContactId c) {
+		contactId = c;
+
+		try {
+			contactName = UiUtils.getContactDisplayName(contactManager.getContact(c));
+		} catch (DbException e) {
+			e.printStackTrace();
+		}
+	}
+
+	public String getContactName() {
+		return contactName;
+	}
+
+	public void onCancelClicked() {
+        state.postValue(ActivateRemoteWipeState.CANCELLED);
+	}
+
+	public void onSuccessDismissed() {
+		state.postValue(ActivateRemoteWipeState.FINISHED);
+	}
+
+	public void onConfirmClicked() {
+		activateWipe();
+	}
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/revoke/RevokeRemoteWipeActivity.java

@@ -0,0 +1,67 @@
+package org.briarproject.briar.android.remotewipe.revoke;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.widget.Toast;
+
+import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.activity.BriarActivity;
+import org.briarproject.briar.android.fragment.BaseFragment;
+
+import javax.inject.Inject;
+
+import androidx.lifecycle.ViewModelProvider;
+
+import static org.briarproject.briar.android.conversation.ConversationActivity.CONTACT_ID;
+
+public class RevokeRemoteWipeActivity extends BriarActivity implements
+		BaseFragment.BaseFragmentListener {
+
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+	RevokeRemoteWipeViewModel viewModel;
+
+	@Override
+	public void injectActivity(ActivityComponent component) {
+		component.inject(this);
+
+		viewModel = new ViewModelProvider(this, viewModelFactory)
+				.get(RevokeRemoteWipeViewModel.class);
+
+		viewModel.getState().observe(this, this::onStateChanged);
+	}
+
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_distributed_backup);
+
+		if (savedInstanceState == null) {
+			Intent intent = getIntent();
+			int id = intent.getIntExtra(CONTACT_ID, -1);
+			if (id == -1) throw new IllegalStateException("No ContactId");
+			ContactId contactId = new ContactId(id);
+			viewModel.revokeRemoteWipeStatus(contactId);
+//			showInitialFragment(new ActivateRemoteWipeExplainerFragment());
+		}
+	}
+
+	private void onStateChanged(RevokeRemoteWipeState state) {
+		switch(state) {
+			case FAILED:
+				// TODO change text
+				Toast.makeText(this,
+						R.string.remote_wipe_activate_failure,
+						Toast.LENGTH_LONG).show();
+				break;
+			case SUCCESS:
+				showNextFragment(new RevokeRemoteWipeSuccessFragment());
+				break;
+			default: // FINISHED or CANCELLED
+				finish();
+				break;
+		}
+	}
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/revoke/RevokeRemoteWipeState.java

@@ -0,0 +1,7 @@
+package org.briarproject.briar.android.remotewipe.revoke;
+
+public enum RevokeRemoteWipeState {
+	FAILED,
+	SUCCESS,
+	FINISHED
+}

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/revoke/RevokeRemoteWipeSuccessFragment.java

@@ -1,4 +1,4 @@
-package org.briarproject.briar.android.socialbackup.recover;
+package org.briarproject.briar.android.remotewipe.revoke;
 
 import android.os.Bundle;
 import android.view.LayoutInflater;
@@ -6,8 +6,6 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
 
-import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
-import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.fragment.BaseFragment;
@@ -18,24 +16,21 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.lifecycle.ViewModelProvider;
 
-@MethodsNotNullByDefault
-@ParametersNotNullByDefault
-public class CustodianReturnShardSuccessFragment extends
-		BaseFragment {
+public class RevokeRemoteWipeSuccessFragment extends BaseFragment {
 
 	public static final String TAG =
-			CustodianReturnShardFragment.class.getName();
+			RevokeRemoteWipeSuccessFragment.class.getName();
 
 	@Inject
 	ViewModelProvider.Factory viewModelFactory;
 
-	private CustodianReturnShardViewModel viewModel;
+	private RevokeRemoteWipeViewModel viewModel;
 
 	@Override
 	public void injectFragment(ActivityComponent component) {
 		component.inject(this);
 		viewModel = new ViewModelProvider(requireActivity(), viewModelFactory)
-				.get(CustodianReturnShardViewModel.class);
+				.get(RevokeRemoteWipeViewModel.class);
 	}
 
 	@Nullable
@@ -43,12 +38,11 @@ public class CustodianReturnShardSuccessFragment extends
 	public View onCreateView(@NonNull LayoutInflater inflater,
 			@Nullable ViewGroup container,
 			@Nullable Bundle savedInstanceState) {
-		View view = inflater.inflate(R.layout.fragment_recovery_custodian_done,
+		View view = inflater.inflate(R.layout.fragment_revoke_remote_wipe_success,
 				container, false);
 
 		Button button = view.findViewById(R.id.button);
 		button.setOnClickListener(e -> viewModel.onSuccessDismissed());
-
 		return view;
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/remotewipe/revoke/RevokeRemoteWipeViewModel.java

@@ -0,0 +1,60 @@
+package org.briarproject.briar.android.remotewipe.revoke;
+
+import android.app.Application;
+
+import org.briarproject.bramble.api.FormatException;
+import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.bramble.api.db.DatabaseComponent;
+import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.briar.android.remotewipe.activate.ActivateRemoteWipeState;
+import org.briarproject.briar.api.remotewipe.RemoteWipeManager;
+
+import javax.inject.Inject;
+
+import androidx.annotation.NonNull;
+import androidx.lifecycle.AndroidViewModel;
+import androidx.lifecycle.MutableLiveData;
+
+public class RevokeRemoteWipeViewModel extends AndroidViewModel {
+
+	private final RemoteWipeManager remoteWipeManager;
+	private final DatabaseComponent db;
+	private final MutableLiveData<RevokeRemoteWipeState> state = new MutableLiveData<>();
+	private ContactId contactId;
+
+	@Inject
+	public RevokeRemoteWipeViewModel(
+			@NonNull Application application,
+			RemoteWipeManager remoteWipeManager,
+			DatabaseComponent db) {
+		super(application);
+		this.remoteWipeManager = remoteWipeManager;
+		this.db = db;
+	}
+
+	public MutableLiveData<RevokeRemoteWipeState> getState() {
+		return state;
+	}
+
+	public void revokeRemoteWipeStatus(ContactId c) {
+		contactId = c;
+		try {
+			db.transaction(false, txn -> {
+				remoteWipeManager.revoke(txn, contactId);
+			});
+		} catch (DbException e) {
+			state.postValue(RevokeRemoteWipeState.FAILED);
+		} catch (FormatException e) {
+			state.postValue(RevokeRemoteWipeState.FAILED);
+		}
+		state.postValue(RevokeRemoteWipeState.SUCCESS);
+	}
+
+	public void onCancelClicked() {
+//		state.postValue(ActivateRemoteWipeState.CANCELLED);
+	}
+
+	public void onSuccessDismissed() {
+		state.postValue(RevokeRemoteWipeState.FINISHED);
+	}
+}

briar-android/src/main/java/org/briarproject/briar/android/settings/SettingsActivity.java

@@ -1,10 +1,12 @@
 package org.briarproject.briar.android.settings;
 
 import android.content.Intent;
+import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.Bundle;
 import android.view.MenuItem;
 import android.view.View;
+import android.widget.ImageView;
 import android.widget.TextView;
 import android.widget.Toast;
 
@@ -12,6 +14,7 @@ import org.briarproject.bramble.api.FeatureFlags;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.activity.BriarActivity;
+import org.briarproject.briar.android.navdrawer.NavDrawerActivity;
 import org.briarproject.briar.android.util.UiUtils;
 import org.briarproject.briar.android.view.AuthorView;
 
@@ -19,11 +22,15 @@ import javax.inject.Inject;
 
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.ActionBar;
+import androidx.core.content.ContextCompat;
 import androidx.lifecycle.ViewModelProvider;
+import androidx.vectordrawable.graphics.drawable.VectorDrawableCompat;
 import de.hdodenhof.circleimageview.CircleImageView;
+import uk.co.samuelwall.materialtaptargetprompt.MaterialTapTargetPrompt;
 
 import static android.widget.Toast.LENGTH_LONG;
 import static org.briarproject.briar.android.activity.RequestCodes.REQUEST_AVATAR_IMAGE;
+import static org.briarproject.briar.android.util.UiUtils.resolveColorAttribute;
 
 public class SettingsActivity extends BriarActivity {
 

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/CustodianSelectorFragment.java

@@ -23,6 +23,7 @@ import java.util.Collection;
 import javax.inject.Inject;
 
 import androidx.annotation.Nullable;
+import androidx.lifecycle.ViewModelProvider;
 
 import static java.util.Objects.requireNonNull;
 
@@ -32,6 +33,18 @@ public class CustodianSelectorFragment extends ContactSelectorFragment {
 
 	public static final String TAG = CustodianSelectorFragment.class.getName();
 
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+
+	private SocialBackupSetupViewModel viewModel;
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+		viewModel = new ViewModelProvider(requireActivity(), viewModelFactory)
+				.get(SocialBackupSetupViewModel.class);
+	}
+
 	@Inject
 	CreateBackupController controller;
 
@@ -44,11 +57,6 @@ public class CustodianSelectorFragment extends ContactSelectorFragment {
 		return fragment;
 	}
 
-	@Override
-	public void injectFragment(ActivityComponent component) {
-		component.inject(this);
-	}
-
 	@Override
 	public void onCreate(@Nullable Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
@@ -78,15 +86,19 @@ public class CustodianSelectorFragment extends ContactSelectorFragment {
 
 		int n = selectedContacts.size();
 		int min = 2;
-		boolean enough = n >= min;
+		int max = 7;
+		boolean amountIsValid = (n >= min) && (n <= max);
 
-		item.setVisible(enough);
+		item.setVisible(amountIsValid);
 		if (n == 0) {
 			Toast.makeText(getContext(), String.format(getString(R.string.select_at_least_n_contacts), min),
 					Toast.LENGTH_SHORT).show();
 		} else if (n < min) {
 			Toast.makeText(getContext(), String.format(getString(R.string.select_at_least_n_more_contacts), min - n),
 					Toast.LENGTH_SHORT).show();
+		} else if (n > max) {
+			Toast.makeText(getContext(), String.format(getString(R.string.select_no_more_than_n_contacts), max),
+					Toast.LENGTH_SHORT).show();
 		}
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/CustodianStatusAdapter.java

@@ -0,0 +1,27 @@
+package org.briarproject.briar.android.socialbackup;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.contact.BaseContactListAdapter;
+import org.briarproject.briar.android.contact.ContactItem;
+import org.briarproject.briar.android.contact.ContactItemViewHolder;
+
+public class CustodianStatusAdapter extends BaseContactListAdapter<ContactItem, ContactItemViewHolder<ContactItem>> {
+
+	CustodianStatusAdapter(Context context) {
+		super(context, ContactItem.class, null);
+	}
+
+	@Override
+	public ContactItemViewHolder<ContactItem> onCreateViewHolder(
+			ViewGroup viewGroup, int i) {
+		View v = LayoutInflater.from(viewGroup.getContext()).inflate(
+				R.layout.list_item_contact_small, viewGroup, false);
+		return new ContactItemViewHolder<>(v);
+	}
+
+}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/DistributedBackupActivity.java

@@ -1,94 +0,0 @@
-package org.briarproject.briar.android.socialbackup;
-
-import android.os.Bundle;
-import android.widget.Toast;
-
-import org.briarproject.bramble.api.contact.ContactId;
-import org.briarproject.bramble.api.db.DatabaseComponent;
-import org.briarproject.bramble.api.db.DbException;
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.activity.ActivityComponent;
-import org.briarproject.briar.android.activity.BriarActivity;
-import org.briarproject.briar.android.contactselection.ContactSelectorListener;
-import org.briarproject.briar.android.fragment.BaseFragment;
-import org.briarproject.briar.api.socialbackup.BackupMetadata;
-import org.briarproject.briar.api.socialbackup.SocialBackupManager;
-
-import java.util.Collection;
-import java.util.List;
-
-import javax.inject.Inject;
-
-public class DistributedBackupActivity extends BriarActivity implements
-		BaseFragment.BaseFragmentListener, ContactSelectorListener,
-		ThresholdDefinedListener,
-		ShardsSentFragment.ShardsSentDismissedListener {
-
-	private Collection<ContactId> custodians;
-
-	@Inject
-	public SocialBackupManager socialBackupManager;
-
-	@Inject
-	public DatabaseComponent db;
-
-	@Override
-	public void injectActivity(ActivityComponent component) {
-		component.inject(this);
-	}
-
-	@Override
-	public void onCreate(Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		setContentView(R.layout.activity_distributed_backup);
-
-		try {
-			db.transaction(false, txn -> {
-				BackupMetadata backupMetadata =
-						socialBackupManager.getBackupMetadata(txn);
-				if (backupMetadata == null) throw new DbException();
-				ExistingBackupFragment fragment =
-						ExistingBackupFragment.newInstance(backupMetadata);
-				showInitialFragment(fragment);
-			});
-		} catch (DbException e) {
-			CustodianSelectorFragment fragment =
-					CustodianSelectorFragment.newInstance();
-			showInitialFragment(fragment);
-		}
-	}
-
-	@Override
-	public void contactsSelected(Collection<ContactId> contacts) {
-		Toast.makeText(this,
-				String.format("Selected %d contacts", contacts.size()),
-				Toast.LENGTH_SHORT).show();
-		custodians = contacts;
-		ThresholdSelectorFragment fragment =
-				ThresholdSelectorFragment.newInstance(contacts.size());
-		showNextFragment(fragment);
-	}
-
-	@Override
-	public void thresholdDefined(int threshold) {
-		try {
-			db.transaction(false, txn -> {
-				socialBackupManager
-						.createBackup(txn, (List<ContactId>) custodians,
-								threshold);
-				ShardsSentFragment fragment = new ShardsSentFragment();
-				showNextFragment(fragment);
-			});
-		} catch (DbException e) {
-			Toast.makeText(this,
-					"There was an error when creating the backup",
-					Toast.LENGTH_LONG).show();
-			finish();
-		}
-	}
-
-	@Override
-	public void shardsSentDismissed() {
-		finish();
-	}
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/ExistingBackupFragment.java

@@ -2,42 +2,48 @@ package org.briarproject.briar.android.socialbackup;
 
 import android.content.Context;
 import android.os.Bundle;
+import android.text.Spannable;
+import android.text.SpannableStringBuilder;
+import android.text.style.ImageSpan;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
 
-import org.briarproject.bramble.api.identity.Author;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.contact.ContactListAdapter;
+import org.briarproject.briar.android.contact.ContactListItem;
+import org.briarproject.briar.android.contact.OnContactClickListener;
 import org.briarproject.briar.android.fragment.BaseFragment;
-import org.briarproject.briar.api.socialbackup.BackupMetadata;
+import org.briarproject.briar.android.view.BriarRecyclerView;
 
-import java.util.ArrayList;
-import java.util.List;
+import java.util.Arrays;
+
+import javax.inject.Inject;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.recyclerview.widget.LinearLayoutManager;
 
-public class ExistingBackupFragment extends BaseFragment {
+public class ExistingBackupFragment extends BaseFragment implements
+		OnContactClickListener<ContactListItem> {
 
-	private static final String THRESHOLD = "threshold";
-	private static final String CUSTODIANS = "custodians";
 	public static final String TAG = ExistingBackupFragment.class.getName();
+	private final ContactListAdapter adapter = new ContactListAdapter(this);
+	private BriarRecyclerView list;
 
-	public static ExistingBackupFragment newInstance(
-			BackupMetadata backupMetadata) {
-		Bundle bundle = new Bundle();
-		List<Author> custodians = backupMetadata.getCustodians();
-		ArrayList custodianNames = new ArrayList();
-		for (Author custodian : custodians) {
-			custodianNames.add(custodian.getName());
-		}
-		bundle.putStringArrayList(CUSTODIANS, custodianNames);
-		bundle.putInt(THRESHOLD, backupMetadata.getThreshold());
-		ExistingBackupFragment fragment = new ExistingBackupFragment();
-		fragment.setArguments(bundle);
-		return fragment;
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+
+	private SocialBackupSetupViewModel viewModel;
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+		viewModel = new ViewModelProvider(requireActivity(), viewModelFactory)
+				.get(SocialBackupSetupViewModel.class);
 	}
 
 	@Override
@@ -51,43 +57,69 @@ public class ExistingBackupFragment extends BaseFragment {
 	@Override
 	public View onCreateView(@NonNull LayoutInflater inflater, @Nullable
 			ViewGroup container, @Nullable Bundle savedInstanceState) {
+		// change toolbar text (relevant when navigating back to this fragment)
+//		requireActivity().setTitle(R.string.social_backup_trusted_contacts);
+
 		View view = inflater.inflate(R.layout.fragment_existing_backup,
 				container, false);
-		Bundle args = requireArguments();
-		ArrayList<String> custodianNames = args.getStringArrayList(CUSTODIANS);
+		viewModel.loadCustodianList();
+		list = view.findViewById(R.id.custodianList);
+		list.setLayoutManager(new LinearLayoutManager(getActivity()));
+		list.setAdapter(adapter);
+		list.setEmptyText(R.string.no_contacts);
 
-		StringBuilder custodianNamesString = new StringBuilder();
-		for (String custodianName : custodianNames) {
-			custodianNamesString
-					.append("• ")
-					.append(custodianName)
-					.append("\n");
-		}
+		viewModel.getContactListItems().observe(getViewLifecycleOwner(),
+				result -> result.onError(this::handleException)
+						.onSuccess(adapter::submitList)
+		);
 
-		TextView textViewThreshold = view.findViewById(R.id.textViewThreshold);
-		textViewThreshold.setText(getString(R.string.existing_backup_explain,
-				args.getInt(THRESHOLD)));
-		TextView textViewCustodians =
-				view.findViewById(R.id.textViewCustodians);
-		textViewCustodians.setText(custodianNamesString);
+		int threshold = viewModel.getThresholdFromExistingBackup();
+		int numberOfCustodians =
+				viewModel.getNumberOfCustodiansFromExistingBackup();
+
+		TextView mOfn = view.findViewById(R.id.textViewThreshold);
+		mOfn.setText(String.format(
+				getString(R.string.existing_backup_explain), threshold));
+
+		TextView thresholdRepresentation =
+				view.findViewById(R.id.textViewThresholdRepresentation);
+		thresholdRepresentation.setText(
+				buildThresholdRepresentationString(threshold,
+						numberOfCustodians));
 		return view;
 	}
 
 	@Override
 	public void onAttach(Context context) {
 		super.onAttach(context);
-//		listener = (ShardsSentDismissedListener) context;
 	}
 
-
 	@Override
 	public String getUniqueTag() {
 		return TAG;
 	}
 
 	@Override
-	public void injectFragment(ActivityComponent component) {
-		component.inject(this);
+	public void onItemClick(View view, ContactListItem item) {
 	}
 
+	private SpannableStringBuilder buildThresholdRepresentationString(
+			int threshold, int numberOfCustodians) {
+		char[] charArray = new char[numberOfCustodians];
+		Arrays.fill(charArray, ' ');
+		SpannableStringBuilder string =
+				new SpannableStringBuilder(new String(charArray));
+
+		for (int i = 0; i < numberOfCustodians; i++) {
+			int drawable = i < threshold
+					? R.drawable.ic_custodian_required
+					: R.drawable.ic_custodian_optional;
+			string.setSpan(new ImageSpan(getContext(), drawable), i,
+					i + 1,
+					Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
+		}
+		// If we have more than 6, split it on two lines
+		if (numberOfCustodians > 6) string.insert(4, "\n");
+		return string;
+	}
 }

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/SetupExplainerFragment.java

@@ -0,0 +1,54 @@
+package org.briarproject.briar.android.socialbackup;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.fragment.BaseFragment;
+
+import javax.inject.Inject;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.lifecycle.ViewModelProvider;
+
+public class SetupExplainerFragment extends BaseFragment {
+
+	public static final String TAG =
+			SetupExplainerFragment.class.getName();
+
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+
+	private SocialBackupSetupViewModel viewModel;
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+		viewModel = new ViewModelProvider(requireActivity(), viewModelFactory)
+				.get(SocialBackupSetupViewModel.class);
+	}
+
+	@Nullable
+	@Override
+	public View onCreateView(@NonNull LayoutInflater inflater, @Nullable
+			ViewGroup container, @Nullable Bundle savedInstanceState) {
+		View view =
+				inflater.inflate(R.layout.fragment_social_backup_setup_explainer,
+						container, false);
+
+		Button button = view.findViewById(R.id.button);
+		button.setOnClickListener(e -> viewModel.onExplainerDismissed());
+		return view;
+	}
+
+	@Override
+	public String getUniqueTag() {
+		return TAG;
+	}
+}
+

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/ShardsSentFragment.java

@@ -1,74 +0,0 @@
-package org.briarproject.briar.android.socialbackup;
-
-import android.content.Context;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.Button;
-
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.activity.ActivityComponent;
-import org.briarproject.briar.android.fragment.BaseFragment;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.annotation.UiThread;
-
-public class ShardsSentFragment extends BaseFragment {
-
-	public static final String TAG = ShardsSentFragment.class.getName();
-
-	interface ShardsSentDismissedListener {
-
-		@UiThread
-		void shardsSentDismissed();
-
-	}
-
-	protected ShardsSentDismissedListener listener;
-
-	@Override
-	public void onCreate(@Nullable Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		requireActivity().setTitle(R.string.title_distributed_backup);
-	}
-
-	@Nullable
-	@Override
-	public View onCreateView(@NonNull LayoutInflater inflater,
-			@Nullable ViewGroup container,
-			@Nullable Bundle savedInstanceState) {
-		View view = inflater.inflate(R.layout.fragment_shards_sent,
-				container, false);
-
-		Button button = view.findViewById(R.id.button);
-		button.setOnClickListener(e -> {
-			listener.shardsSentDismissed();
-		});
-
-		return view;
-	}
-
-	@Override
-	public void onAttach(Context context) {
-		super.onAttach(context);
-		listener = (ShardsSentDismissedListener) context;
-	}
-
-
-	@Override
-	public String getUniqueTag() {
-		return TAG;
-	}
-
-	@Override
-	public void injectFragment(ActivityComponent component) {
-		component.inject(this);
-	}
-
-    public void onBackPressed() {
-	    listener.shardsSentDismissed();
-    }
-
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/SocialBackupSetupActivity.java

@@ -0,0 +1,94 @@
+package org.briarproject.briar.android.socialbackup;
+
+import android.os.Bundle;
+import android.widget.Toast;
+
+import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.briar.R;
+import org.briarproject.briar.android.activity.ActivityComponent;
+import org.briarproject.briar.android.activity.BriarActivity;
+import org.briarproject.briar.android.contactselection.ContactSelectorListener;
+import org.briarproject.briar.android.fragment.BaseFragment;
+
+import java.util.Collection;
+import java.util.List;
+
+import javax.inject.Inject;
+
+import androidx.lifecycle.ViewModelProvider;
+
+public class SocialBackupSetupActivity extends BriarActivity implements
+		BaseFragment.BaseFragmentListener, ContactSelectorListener {
+
+	private SocialBackupSetupViewModel viewModel;
+
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+
+	@Override
+	public void injectActivity(ActivityComponent component) {
+		component.inject(this);
+		viewModel = new ViewModelProvider(this, viewModelFactory)
+				.get(SocialBackupSetupViewModel.class);
+	}
+
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_distributed_backup);
+
+		if (viewModel.haveExistingBackup()) {
+			showInitialFragment(new ExistingBackupFragment());
+		} else {
+			try {
+				if (!viewModel.haveEnoughContacts()) {
+					Toast.makeText(this,
+							R.string.social_backup_not_enough_contacts,
+							Toast.LENGTH_LONG).show();
+					finish();
+				}
+			} catch (DbException dbException) {
+				Toast.makeText(this,
+						R.string.reading_contacts_error,
+						Toast.LENGTH_LONG).show();
+				finish();
+			}
+			showInitialFragment(new SetupExplainerFragment());
+		}
+
+		viewModel.getState()
+				.observe(this, this::onStateChanged);
+	}
+
+	private void onStateChanged(SocialBackupSetupViewModel.State state) {
+		switch (state) {
+			case SUCCESS:
+				finish();
+				break;
+			case FAILURE:
+				Toast.makeText(this,
+						"There was an error when creating the backup",
+						Toast.LENGTH_LONG).show();
+				finish();
+				break;
+			case CHOOSING_CUSTODIANS:
+				CustodianSelectorFragment fragment =
+						CustodianSelectorFragment.newInstance();
+				showNextFragment(fragment);
+				break;
+		}
+	}
+
+	@Override
+	public void contactsSelected(Collection<ContactId> contacts) {
+		Toast.makeText(this,
+				String.format("Selected %d contacts", contacts.size()),
+				Toast.LENGTH_SHORT).show();
+		viewModel.setCustodians((List<ContactId>) contacts);
+		ThresholdSelectorFragment fragment =
+				ThresholdSelectorFragment.newInstance(contacts.size());
+		showNextFragment(fragment);
+	}
+
+}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/SocialBackupSetupModule.java

@@ -0,0 +1,20 @@
+package org.briarproject.briar.android.socialbackup;
+
+import org.briarproject.briar.android.socialbackup.recover.CustodianReturnShardViewModel;
+import org.briarproject.briar.android.viewmodel.ViewModelKey;
+
+import androidx.lifecycle.ViewModel;
+import dagger.Binds;
+import dagger.Module;
+import dagger.multibindings.IntoMap;
+
+@Module
+public abstract class SocialBackupSetupModule {
+
+	@Binds
+	@IntoMap
+	@ViewModelKey(SocialBackupSetupViewModel.class)
+	abstract ViewModel bindSocialBackupSetupViewModel(
+			SocialBackupSetupViewModel socialBackupSetupViewModel);
+
+}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/SocialBackupSetupViewModel.java

@@ -0,0 +1,147 @@
+package org.briarproject.briar.android.socialbackup;
+
+import android.app.Application;
+
+import org.briarproject.bramble.api.connection.ConnectionRegistry;
+import org.briarproject.bramble.api.contact.ContactId;
+import org.briarproject.bramble.api.contact.ContactManager;
+import org.briarproject.bramble.api.db.DatabaseComponent;
+import org.briarproject.bramble.api.db.DatabaseExecutor;
+import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.bramble.api.event.EventBus;
+import org.briarproject.bramble.api.lifecycle.LifecycleManager;
+import org.briarproject.bramble.api.system.AndroidExecutor;
+import org.briarproject.briar.android.contact.ContactsViewModel;
+import org.briarproject.briar.api.conversation.ConversationManager;
+import org.briarproject.briar.api.identity.AuthorManager;
+import org.briarproject.briar.api.socialbackup.BackupMetadata;
+import org.briarproject.briar.api.socialbackup.SocialBackupManager;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Executor;
+
+import javax.inject.Inject;
+
+import androidx.annotation.NonNull;
+import androidx.lifecycle.MutableLiveData;
+
+public class SocialBackupSetupViewModel extends ContactsViewModel {
+
+	private final SocialBackupManager socialBackupManager;
+	private final DatabaseComponent db;
+	private final ContactManager contactManager;
+	private BackupMetadata backupMetadata;
+	private List<ContactId> custodians;
+	private int threshold;
+
+
+	public enum State {
+		EXPLAINING,
+		CHOOSING_CUSTODIANS,
+		GETTING_THRESHOLD,
+		SUCCESS,
+		FAILURE
+	}
+
+	private final MutableLiveData<State> state =
+			new MutableLiveData<>();
+	@Inject
+	public SocialBackupSetupViewModel(
+			@NonNull Application app,
+			DatabaseComponent db,
+			@DatabaseExecutor Executor dbExecutor,
+			LifecycleManager lifecycleManager,
+			AuthorManager authorManager,
+			ConversationManager conversationManager,
+			ConnectionRegistry connectionRegistry,
+			EventBus eventBus,
+			AndroidExecutor androidExecutor,
+			SocialBackupManager socialBackupManager,
+			ContactManager contactManager
+	) {
+		super(app, dbExecutor, lifecycleManager, db, androidExecutor,
+				contactManager, authorManager, conversationManager,
+				connectionRegistry, eventBus);
+
+		this.socialBackupManager = socialBackupManager;
+		this.db = db;
+		this.contactManager = contactManager;
+	}
+
+    public void loadCustodianList() {
+	    try {
+		    custodians = db.transactionWithResult(true,
+				    socialBackupManager::getCustodianContactIds);
+	    } catch (DbException e) {
+	    	custodians = new ArrayList<>();
+	    }
+	    loadContacts();
+    }
+
+	public boolean haveExistingBackup() {
+		try {
+			backupMetadata = db.transactionWithNullableResult(true,
+					socialBackupManager::getBackupMetadata);
+		} catch (DbException e) {
+			return false;
+		}
+		return (backupMetadata != null);
+	}
+
+//	public BackupMetadata getBackupMetadata() {
+//		return backupMetadata;
+//	}
+
+	public boolean haveEnoughContacts() throws DbException {
+		return (contactManager.getContacts().size() > 1);
+	}
+
+	public void setCustodians(List<ContactId> contacts) {
+		custodians = contacts;
+	}
+
+	public void createBackup() {
+		try {
+			db.transaction(false, txn -> {
+				socialBackupManager
+						.createBackup(txn, (List<ContactId>) custodians,
+								threshold);
+			});
+		} catch (DbException e) {
+			state.postValue(State.FAILURE);
+		}
+	}
+
+	public void setThreshold(int threshold) {
+		this.threshold = threshold;
+		createBackup();
+	}
+
+	public void onSuccessDismissed() {
+		state.postValue(State.SUCCESS);
+	}
+
+	public MutableLiveData<State> getState() {
+		return state;
+	}
+
+	public void onExplainerDismissed() {
+		state.postValue(State.CHOOSING_CUSTODIANS);
+	}
+
+	@Override
+	protected boolean displayContact(ContactId contactId) {
+		// Check if contact holds a backup piece
+		return custodians.contains(contactId);
+	}
+
+	public int getThresholdFromExistingBackup() {
+		return backupMetadata.getThreshold();
+	}
+
+	public int getNumberOfCustodiansFromExistingBackup() {
+		return backupMetadata.getCustodians().size();
+	}
+}
+

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/ThresholdDefinedListener.java

@@ -1,12 +0,0 @@
-package org.briarproject.briar.android.socialbackup;
-
-import org.briarproject.bramble.api.db.DbException;
-
-import androidx.annotation.UiThread;
-
-public interface ThresholdDefinedListener {
-
-	@UiThread
-	void thresholdDefined(int threshold) throws DbException;
-
-}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/ThresholdSelectorFragment.java

@@ -2,6 +2,10 @@ package org.briarproject.briar.android.socialbackup;
 
 import android.content.Context;
 import android.os.Bundle;
+import android.text.Spannable;
+import android.text.SpannableString;
+import android.text.SpannableStringBuilder;
+import android.text.style.ImageSpan;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -11,22 +15,28 @@ import android.view.ViewGroup;
 import android.widget.SeekBar;
 import android.widget.TextView;
 
-import org.briarproject.bramble.api.db.DbException;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.fragment.BaseFragment;
+import org.briarproject.briar.android.login.StrengthMeter;
 import org.magmacollective.darkcrystal.secretsharingwrapper.SecretSharingWrapper;
 
+import java.util.Arrays;
+
+import javax.inject.Inject;
+
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
+import androidx.lifecycle.ViewModelProvider;
+
+import static android.view.View.GONE;
 
 public class ThresholdSelectorFragment extends BaseFragment {
 
 	public static final String TAG = ThresholdSelectorFragment.class.getName();
 	private static final String NUMBER_CUSTODIANS = "numberCustodians";
 
-	protected ThresholdDefinedListener listener;
-
 	private int numberOfCustodians;
 	private int threshold;
 	private int recommendedThreshold;
@@ -34,6 +44,19 @@ public class ThresholdSelectorFragment extends BaseFragment {
 	private TextView thresholdRepresentation;
 	private TextView message;
 	private TextView mOfn;
+	private StrengthMeter strengthMeter;
+
+	@Inject
+	ViewModelProvider.Factory viewModelFactory;
+
+	private SocialBackupSetupViewModel viewModel;
+
+	@Override
+	public void injectFragment(ActivityComponent component) {
+		component.inject(this);
+		viewModel = new ViewModelProvider(requireActivity(), viewModelFactory)
+				.get(SocialBackupSetupViewModel.class);
+	}
 
 	public static ThresholdSelectorFragment newInstance(int numberCustodians) {
 		Bundle bundle = new Bundle();
@@ -62,21 +85,21 @@ public class ThresholdSelectorFragment extends BaseFragment {
 		thresholdRepresentation =
 				view.findViewById(R.id.textViewThresholdRepresentation);
 		message = view.findViewById(R.id.textViewMessage);
-		mOfn = view.findViewById(R.id.textViewmOfn);
+		mOfn = view.findViewById(R.id.text_view_m_of_n);
+		strengthMeter = view.findViewById(R.id.strength_meter);
 
-		if (numberOfCustodians == 2) {
-			message.setText(R.string.threshold_too_few_custodians);
-		}
 		if (numberOfCustodians > 3) {
 			seekBar.setMax(numberOfCustodians -3);
-			seekBar.setProgress(threshold - 2);
 			seekBar.setOnSeekBarChangeListener(new SeekBarListener());
 			recommendedThreshold =
 					SecretSharingWrapper.defaultThreshold(numberOfCustodians);
 			threshold = recommendedThreshold;
-
+			seekBar.setProgress(threshold - 2);
+			strengthMeter.setStrength(1);
 		} else {
 			seekBar.setEnabled(false);
+			seekBar.setVisibility(GONE);
+			strengthMeter.setVisibility(GONE);
 			threshold = 2;
 			seekBar.setMax(numberOfCustodians);
 			seekBar.setProgress(threshold);
@@ -98,20 +121,13 @@ public class ThresholdSelectorFragment extends BaseFragment {
 	@Override
 	public void onAttach(Context context) {
 		super.onAttach(context);
-		listener = (ThresholdDefinedListener) context;
 	}
 
-
 	@Override
 	public String getUniqueTag() {
 		return TAG;
 	}
 
-	@Override
-	public void injectFragment(ActivityComponent component) {
-		component.inject(this);
-	}
-
 	@Override
 	public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
 		inflater.inflate(R.menu.define_threshold_actions, menu);
@@ -122,26 +138,42 @@ public class ThresholdSelectorFragment extends BaseFragment {
 	public boolean onOptionsItemSelected(MenuItem item) {
 		switch (item.getItemId()) {
 			case R.id.action_threshold_defined:
-				try {
-					listener.thresholdDefined(threshold);
-				} catch (DbException e) {
-					e.printStackTrace();
-				}
+				viewModel.setThreshold(threshold);
+				showSuccessDialog();
 				return true;
 			default:
 				return super.onOptionsItemSelected(item);
 		}
 	}
 
-	private String buildThresholdRepresentationString() {
-		String thresholdRepresentationText = "";
-		for (int i = 0; i < threshold; i++) {
-			thresholdRepresentationText += getString(R.string.filled_bullet);
+	private void showSuccessDialog() {
+		AlertDialog.Builder builder = new AlertDialog.Builder(requireContext(),
+				R.style.BriarDialogTheme);
+		builder.setTitle(R.string.backup_created);
+		builder.setMessage(R.string.backup_done_info);
+		builder.setPositiveButton(R.string.ok,
+				(dialog, which) -> viewModel.onSuccessDismissed());
+		builder.setIcon(R.drawable.ic_baseline_done_outline_24);
+				AlertDialog dialog = builder.create();
+		dialog.show();
+	}
+
+	private SpannableStringBuilder buildThresholdRepresentationString() {
+		char[] charArray = new char[numberOfCustodians];
+		Arrays.fill(charArray, ' ');
+		SpannableStringBuilder string = new SpannableStringBuilder(new String(charArray));
+
+		for (int i = 0; i < numberOfCustodians; i++) {
+			int drawable = i < threshold
+					? R.drawable.ic_custodian_required
+					: R.drawable.ic_custodian_optional;
+			string.setSpan(new ImageSpan(getContext(), drawable), i,
+					i+1,
+					Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 		}
-		for (int i = 0; i < (numberOfCustodians - threshold); i++) {
-			thresholdRepresentationText += getString(R.string.linear_bullet);
-		}
-		return thresholdRepresentationText;
+		// If we have more than 6, split it on two lines
+		if (numberOfCustodians > 6) string.insert(4, "\n");
+        return string;
 	}
 
 	private class SeekBarListener implements SeekBar.OnSeekBarChangeListener {
@@ -159,12 +191,23 @@ public class ThresholdSelectorFragment extends BaseFragment {
 			int sanityLevel = SecretSharingWrapper
 					.thresholdSanity(threshold, numberOfCustodians);
 			int text = R.string.threshold_secure;
-			if (threshold == recommendedThreshold)
+			float strength = 1;
+			if (threshold == recommendedThreshold) {
 				text = R.string.threshold_recommended;
-			if (sanityLevel < -1) text = R.string.threshold_low_insecure;
-			if (sanityLevel > 0) text = R.string.threshold_high_insecure;
+			}
+			if (sanityLevel < -1) {
+                strength = 0.75f;
+				text = R.string.threshold_low_insecure;
+			}
+			if (sanityLevel < -2) {
+				strength = 0.5f;
+			}
+			if (sanityLevel > 0) {
+				strength = 0.75f;
+				text = R.string.threshold_high_insecure;
+			}
+			strengthMeter.setStrength(strength);
 			message.setText(text);
-			// TODO change colour of thresholdRepresentation to green/red based on sanityLevel
 		}
 
 		@Override

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/recover/CustodianRecoveryModeExplainerFragment.java

@@ -32,11 +32,6 @@ public class CustodianRecoveryModeExplainerFragment extends BaseFragment {
 		viewModel = new ViewModelProvider(requireActivity(), viewModelFactory)
 				.get(CustodianReturnShardViewModel.class);
 	}
-//	@Override
-//	public void onCreate(@Nullable Bundle savedInstanceState) {
-//		super.onCreate(savedInstanceState);
-//		requireActivity().setTitle(R.string.title_help_recover);
-//	}
 
 	@Nullable
 	@Override

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/recover/CustodianReturnShardActivity.java

@@ -13,7 +13,6 @@ import org.briarproject.briar.android.fragment.BaseFragment;
 import org.briarproject.briar.api.socialbackup.recovery.CustodianTask;
 
 import java.io.IOException;
-import java.util.logging.Logger;
 
 import javax.annotation.Nullable;
 import javax.inject.Inject;
@@ -21,17 +20,12 @@ import javax.inject.Inject;
 import androidx.fragment.app.FragmentManager;
 import androidx.lifecycle.ViewModelProvider;
 
-import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TOP;
-import static java.util.logging.Logger.getLogger;
 import static org.briarproject.briar.android.conversation.ConversationActivity.CONTACT_ID;
 
 public class CustodianReturnShardActivity extends BriarActivity
 		implements BaseFragment.BaseFragmentListener {
 
 	private CustodianReturnShardViewModel viewModel;
-	private static final Logger LOG =
-			getLogger(CustodianReturnShardActivity.class.getName());
-	private ContactId contactId;
 
 	@Inject
 	ViewModelProvider.Factory viewModelFactory;
@@ -52,7 +46,7 @@ public class CustodianReturnShardActivity extends BriarActivity
 			Intent intent = getIntent();
 			int id = intent.getIntExtra(CONTACT_ID, -1);
 			if (id == -1) throw new IllegalStateException("No ContactId");
-			contactId = new ContactId(id);
+			ContactId contactId = new ContactId(id);
 
 			try {
 				viewModel.start(contactId);
@@ -96,7 +90,8 @@ public class CustodianReturnShardActivity extends BriarActivity
 					"It looks like you are not connected to a Wifi network",
 					Toast.LENGTH_SHORT).show();
 			FragmentManager fm = getSupportFragmentManager();
-			if (fm.findFragmentByTag(CustodianReturnShardFragment.TAG) == null) {
+			if (fm.findFragmentByTag(CustodianReturnShardFragment.TAG) ==
+					null) {
 				BaseFragment f = new CustodianReturnShardErrorFragment();
 				fm.beginTransaction()
 						.replace(R.id.fragmentContainer, f, f.getUniqueTag())
@@ -106,19 +101,15 @@ public class CustodianReturnShardActivity extends BriarActivity
 		}
 	}
 
-
 	private void onReturnShardStateChanged(CustodianTask.State state) {
-        if (state instanceof CustodianTask.State.Success) {
-	        CustodianReturnShardSuccessFragment fragment = new CustodianReturnShardSuccessFragment();
-	        showNextFragment(fragment);
-        } else if (state instanceof CustodianTask.State.Failure) {
-        	// TODO error fragment here
-	        // TODO handle reason
-	        Toast.makeText(this,
-			        "Backup piece transfer failed",
-			        Toast.LENGTH_SHORT).show();
-	        finish();
-        }
+		if (state instanceof CustodianTask.State.Failure) {
+			// TODO error fragment here
+			// TODO handle reason
+			Toast.makeText(this,
+					"Backup piece transfer failed",
+					Toast.LENGTH_SHORT).show();
+			finish();
+		}
 	}
 
 	private void showCameraFragment() {

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/recover/CustodianReturnShardFragment.java

@@ -5,6 +5,7 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.LinearLayout;
+import android.widget.ProgressBar;
 import android.widget.TextView;
 import android.widget.Toast;
 
@@ -24,6 +25,7 @@ import javax.annotation.Nullable;
 import javax.inject.Inject;
 
 import androidx.annotation.UiThread;
+import androidx.appcompat.app.AlertDialog;
 import androidx.lifecycle.ViewModelProvider;
 
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_NOSENSOR;
@@ -53,6 +55,7 @@ public class CustodianReturnShardFragment extends BaseFragment
 	private LinearLayout cameraOverlay;
 	private View statusView;
 	private TextView status;
+	private ProgressBar bottomSpinner;
 
 	public static CustodianReturnShardFragment newInstance() {
 		Bundle args = new Bundle();
@@ -84,6 +87,7 @@ public class CustodianReturnShardFragment extends BaseFragment
 		cameraOverlay = view.findViewById(R.id.camera_overlay);
 		statusView = view.findViewById(R.id.status_container);
 		status = view.findViewById(R.id.connect_status);
+		bottomSpinner = view.findViewById(R.id.qr_code_progress_bar);
 
 		viewModel.getState().observe(getViewLifecycleOwner(),
 				this::onReturnShardStateChanged);
@@ -141,7 +145,6 @@ public class CustodianReturnShardFragment extends BaseFragment
 
 	@UiThread
 	private void onReturnShardStateChanged(@Nullable CustodianTask.State state) {
-		LOG.info("State changed");
 //		if (state instanceof CustodianTask.State.Connecting) {
 //			try {
 //				cameraView.stop();
@@ -163,8 +166,9 @@ public class CustodianReturnShardFragment extends BaseFragment
 		} else if (state instanceof CustodianTask.State.ReceivingAck) {
 			status.setText("Receiving Ack");
 		} else if (state instanceof CustodianTask.State.Success) {
-			// TODO
-			status.setText(R.string.exchanging_contact_details);
+			statusView.setVisibility(INVISIBLE);
+			bottomSpinner.setVisibility(INVISIBLE);
+			showSuccessDialog();
 		} else if (state instanceof CustodianTask.State.Failure) {
 			// the activity will replace this fragment with an error fragment
 			statusView.setVisibility(INVISIBLE);
@@ -190,4 +194,15 @@ public class CustodianReturnShardFragment extends BaseFragment
 		requireActivity().getSupportFragmentManager().popBackStack();
 	}
 
+	private void showSuccessDialog() {
+		AlertDialog.Builder builder = new AlertDialog.Builder(requireContext(),
+				R.style.BriarDialogTheme);
+		builder.setTitle(R.string.custodian_shard_sent);
+		//builder.setMessage();
+		builder.setPositiveButton(R.string.ok,
+				(dialog, which) -> viewModel.onSuccessDismissed());
+		builder.setIcon(R.drawable.ic_baseline_done_outline_24);
+		AlertDialog dialog = builder.create();
+		dialog.show();
+	}
 }

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/recover/CustodianReturnShardViewModel.java

@@ -53,7 +53,7 @@ public class CustodianReturnShardViewModel extends AndroidViewModel
 	final QrCodeDecoder qrCodeDecoder;
 	private boolean qrCodeRead = false;
 	private WifiManager wifiManager;
-	private final MutableLiveEvent<Boolean > continueClicked = new MutableLiveEvent<>();
+	private final MutableLiveEvent<Boolean> continueClicked = new MutableLiveEvent<>();
 	private final MutableLiveEvent<Boolean> showCameraFragment =
 			new MutableLiveEvent<>();
 	private final MutableLiveEvent<Boolean> successDismissed =
@@ -177,7 +177,6 @@ public class CustodianReturnShardViewModel extends AndroidViewModel
 		successDismissed.setEvent(true);
 	}
 
-
 	QrCodeDecoder getQrCodeDecoder() {
 		return qrCodeDecoder;
 	}

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/recover/OwnerReturnShardActivity.java

@@ -44,13 +44,6 @@ public class OwnerReturnShardActivity extends BaseActivity
 
 	private OwnerReturnShardViewModel viewModel;
 
-//	private final ActivityResultLauncher<String[]> permissionLauncher =
-//			registerForActivityResult(
-//					new ActivityResultContracts.RequestMultiplePermissions(),
-//					r ->
-//							permissionManager.onRequestPermissionResult(r,
-//									viewModel::showQrCodeFragmentIfAllowed));
-
 	@Override
 	public void injectActivity(ActivityComponent component) {
 		component.inject(this);
@@ -154,7 +147,8 @@ public class OwnerReturnShardActivity extends BaseActivity
 						"WARNING: Mismatched backup piece!",
 						Toast.LENGTH_LONG).show();
 			}
-			boolean added = (result != RestoreAccount.AddReturnShardPayloadResult.DUPLICATE) ? true : false;
+			boolean added = result !=
+					RestoreAccount.AddReturnShardPayloadResult.DUPLICATE;
 			Toast.makeText(this,
 					"Success - got backup piece" + (added ? "" : " duplicate"),
 					Toast.LENGTH_SHORT).show();

briar-android/src/main/java/org/briarproject/briar/android/socialbackup/recover/OwnerReturnShardFragment.java

@@ -27,7 +27,6 @@ import androidx.lifecycle.ViewModelProvider;
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_NOSENSOR;
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
 import static android.view.View.INVISIBLE;
-import static android.view.View.VISIBLE;
 import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
 import static android.widget.LinearLayout.HORIZONTAL;
 
@@ -158,5 +157,4 @@ public class OwnerReturnShardFragment extends BaseFragment
 	protected void finish() {
 		requireActivity().getSupportFragmentManager().popBackStack();
 	}
-
 }

briar-android/src/main/res/drawable/button_positive_tiny_disable.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+	<item android:color="@color/briar_button_text_positive" android:state_enabled="true"/>
+	<item android:color="@color/briar_button_text_disabled" />
+</selector>

briar-android/src/main/res/drawable/ic_custodian_optional.xml

@@ -0,0 +1,5 @@
+<vector android:height="48dp" android:tint="#660066"
+	android:viewportHeight="24.0" android:viewportWidth="24.0"
+	android:width="48dp" xmlns:android="http://schemas.android.com/apk/res/android">
+	<path android:fillColor="#FF000000" android:pathData="M12,12c2.21,0 4,-1.79 4,-4s-1.79,-4 -4,-4 -4,1.79 -4,4 1.79,4 4,4zM12,14c-2.67,0 -8,1.34 -8,4v2h16v-2c0,-2.66 -5.33,-4 -8,-4z"/>
+</vector>

briar-android/src/main/res/drawable/ic_custodian_required.xml

@@ -0,0 +1,5 @@
+<vector android:height="48dp" android:tint="#FF00FF"
+android:viewportHeight="24.0" android:viewportWidth="24.0"
+android:width="48dp" xmlns:android="http://schemas.android.com/apk/res/android">
+<path android:fillColor="#FF000000" android:pathData="M12,12c2.21,0 4,-1.79 4,-4s-1.79,-4 -4,-4 -4,1.79 -4,4 1.79,4 4,4zM12,14c-2.67,0 -8,1.34 -8,4v2h16v-2c0,-2.66 -5.33,-4 -8,-4z"/>
+</vector>

briar-android/src/main/res/drawable/ic_social_backup_group.xml

@@ -0,0 +1,7 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+	android:height="72dp"
+	android:width="72dp"
+	android:viewportWidth="24"
+	android:viewportHeight="24">
+	<path android:fillColor="#000" android:pathData="M12,5.5A3.5,3.5 0 0,1 15.5,9A3.5,3.5 0 0,1 12,12.5A3.5,3.5 0 0,1 8.5,9A3.5,3.5 0 0,1 12,5.5M5,8C5.56,8 6.08,8.15 6.53,8.42C6.38,9.85 6.8,11.27 7.66,12.38C7.16,13.34 6.16,14 5,14A3,3 0 0,1 2,11A3,3 0 0,1 5,8M19,8A3,3 0 0,1 22,11A3,3 0 0,1 19,14C17.84,14 16.84,13.34 16.34,12.38C17.2,11.27 17.62,9.85 17.47,8.42C17.92,8.15 18.44,8 19,8M5.5,18.25C5.5,16.18 8.41,14.5 12,14.5C15.59,14.5 18.5,16.18 18.5,18.25V20H5.5V18.25M0,20V18.5C0,17.11 1.89,15.94 4.45,15.6C3.86,16.28 3.5,17.22 3.5,18.25V20H0M24,20H20.5V18.25C20.5,17.22 20.14,16.28 19.55,15.6C22.11,15.94 24,17.11 24,18.5V20Z" />
+</vector>

briar-android/src/main/res/drawable/remote_wipe_activate_explain.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+	android:width="409.2dp"
+	android:height="161.7dp"
+	android:viewportHeight="161.7"
+	android:viewportWidth="409.2">
+	<path
+		android:fillColor="#FF000000"
+		android:pathData="M369.8,157.4l-4.3,-4.3l-7.1,-2.4c-3.9,-1.3 -8.7,-3 -10.7,-3.7l-3.7,-1.3l3.5,-0.2c8.2,-0.4 13,-4 14.3,-10.9c0.8,-4.1 1.1,-17.3 0.8,-33c-0.2,-8.1 -0.2,-15.4 0,-16.3c0.1,-0.9 0.5,-2.4 0.9,-3.4c1.2,-3.5 0.3,-11.9 -1.9,-17.6c-0.3,-0.9 -1.9,-4.2 -3.5,-7.4c-4.2,-8.2 -4.5,-8.9 -4.9,-10.5c-0.5,-1.8 -0.2,-5.4 0.5,-6.8c0.7,-1.3 2.2,-2.9 3.2,-3.5c1.3,-0.7 2.6,0.1 4.7,2.9c3.4,4.5 14,19.4 15.7,22.2c3.7,6 6,11.2 8,18.8c0.7,2.5 1.9,7 2.7,10.1c0.8,3.1 2.7,10.2 4.1,15.8l2.6,10.2l4.6,5.2c2.6,2.9 5.8,6.5 7.2,8c1.4,1.6 2.5,3 2.5,3.2c0,0.3 -34.5,29.3 -34.9,29.3C374.2,161.7 372.2,159.7 369.8,157.4zM275.9,141c-1.3,-0.6 -2.2,-1.4 -2.9,-2.3c-2.1,-2.7 -2,2.4 -1.9,-68.5l0.1,-64l0.7,-1.2c1,-1.9 2,-2.9 3.7,-3.9l1.6,-0.9l37.8,-0.1c42.5,-0.1 39.4,-0.2 42.1,2.2c0.9,0.8 1.8,2 2.2,2.9c0.7,1.6 0.7,1.6 0.8,14.2l0.1,12.6l-1.8,-0.1c-1.4,-0.1 -2.1,0 -3.2,0.5c-2,1 -3.9,2.9 -5.1,5.1l-1,2l0,-12.8l0,-12.8h-33.6h-33.6v51.3v51.3h33.6h33.6l0.1,-34.4c0.1,-33 0.1,-34.4 0.6,-32.9c0.3,0.8 1.8,4 3.4,7c5.5,10.6 5.4,9.9 5.4,47.2c0,27.6 -0.1,30 -1.7,33.1c-1.1,2.2 -2.7,3.7 -5.1,4.7l-1.7,0.7L314,141.8l-36.2,0.1L275.9,141L275.9,141zM318.3,135.9c2.9,-1.3 4.5,-3.7 4.4,-6.6c0,-4.1 -3.1,-7.2 -7.1,-7.2c-2.1,0 -3.6,0.6 -5.2,2.2c-2.2,2.2 -2.8,5.4 -1.3,8.3c0.7,1.4 2.5,3 4,3.5C314.6,136.6 317,136.6 318.3,135.9z"/>
+	<path
+		android:fillColor="#FF000000"
+		android:pathData="M39.4,157.4l4.3,-4.3l7.1,-2.4c3.9,-1.3 8.7,-3 10.7,-3.7l3.7,-1.3l-3.5,-0.2c-8.2,-0.4 -13,-4 -14.3,-10.9c-0.8,-4.1 -1.1,-17.3 -0.8,-33c0.2,-8.1 0.2,-15.4 0,-16.3c-0.1,-0.9 -0.5,-2.4 -0.9,-3.4c-1.2,-3.5 -0.3,-11.9 1.9,-17.6c0.3,-0.9 1.9,-4.2 3.5,-7.4c4.2,-8.2 4.5,-8.9 4.9,-10.5c0.5,-1.8 0.2,-5.4 -0.5,-6.8c-0.7,-1.3 -2.2,-2.9 -3.2,-3.5c-1.3,-0.7 -2.6,0.1 -4.7,2.9c-3.4,4.5 -14,19.4 -15.7,22.2c-3.7,6 -6,11.2 -8,18.8c-0.7,2.5 -1.9,7 -2.7,10.1c-0.8,3.1 -2.7,10.2 -4.1,15.8l-2.6,10.2l-4.6,5.2c-2.6,2.9 -5.8,6.5 -7.2,8s-2.5,3 -2.5,3.2c0,0.3 34.5,29.3 34.9,29.3C35,161.7 37.1,159.7 39.4,157.4zM133.3,141c1.3,-0.6 2.2,-1.4 2.9,-2.3c2.1,-2.7 2,2.4 1.9,-68.5l-0.1,-64l-0.7,-1.2c-1,-1.9 -2,-2.9 -3.7,-3.9l-1.6,-0.9l-37.8,-0.1c-42.5,-0.1 -39.4,-0.2 -42.1,2.2c-0.9,0.8 -1.8,2 -2.2,2.9c-0.7,1.6 -0.7,1.6 -0.8,14.2L49,32l1.8,-0.1c1.4,-0.1 2.1,0 3.2,0.5c2,1 3.9,2.9 5.1,5.1l1,2l0,-12.8l0,-12.8h33.6h33.6v51.3v51.3L93.8,116.5L60.2,116.5l-0.1,-34.4c-0.1,-33 -0.1,-34.4 -0.6,-32.9c-0.3,0.8 -1.8,4 -3.4,7c-5.5,10.6 -5.4,9.9 -5.4,47.2c0,27.6 0.1,30 1.7,33.1c1.1,2.2 2.7,3.7 5.1,4.7l1.7,0.7l36.2,0.1l36.2,0.1L133.3,141L133.3,141zM90.9,135.9c-2.9,-1.3 -4.5,-3.7 -4.4,-6.6c0,-4.1 3.1,-7.2 7.1,-7.2c2.1,0 3.6,0.6 5.2,2.2c2.2,2.2 2.8,5.4 1.3,8.3c-0.7,1.4 -2.5,3 -4,3.5C94.6,136.6 92.3,136.6 90.9,135.9z"/>
+	<path
+		android:fillColor="#000000"
+		android:pathData="M 207.61295,88.782357 h -6.42588 v -12.85177 h 6.42588 m 0,25.703533 h -6.42588 v -6.425883 h 6.42588 m -38.5553,16.064713 h 70.68472 L 204.40001,50.227047 Z"
+		android:strokeWidth="3.21294165"/>
+
+		<path
+			android:fillColor="#000000"
+			android:pathData="M90.58,50.42A8.19,8.01 0 0,1 98.77,42.42A8.19,8.01 0 0,1 106.96,50.42C106.96,51.46 107.79,52.27 108.85,52.27C109.91,52.27 110.74,51.46 110.74,50.42V48.58H113.99V50.42A5.67,5.54 0 0,1 108.85,55.97A5.67,5.54 0 0,1 103.18,50.42A4.41,4.31 0 0,0 98.77,46.11A4.41,4.31 0 0,0 94.36,50.42H97.35V53.6C104.79,55.71 110.11,62.31 110.11,70.14A17.64,17.25 0 0,1 92.47,87.38A17.64,17.25 0 0,1 74.83,70.14C74.83,62.31 80.15,55.71 87.43,53.6V50.42H90.58M117.67,50.42H122.6V52.89H117.67V50.42M110.11,45.5V40.57H112.57V45.5H110.11M114.92,46.42L118.5,42.92L120.29,44.68L116.71,48.18L114.92,46.42Z" />
+</vector>

briar-android/src/main/res/layout/activity_preview_welcome.xml

@@ -16,6 +16,7 @@
 		app:title="@string/setup_title"
 		app:titleTextColor="@android:color/white" />
 
-	<include layout="@layout/fragment_start" />
+<!--	<include layout="@layout/fragment_start" />-->
+	<include layout="@layout/fragment_new_or_recover" />
 
 </LinearLayout>

briar-android/src/main/res/layout/fragment_activate_remote_wipe_explainer.xml

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+xmlns:app="http://schemas.android.com/apk/res-auto"
+xmlns:tools="http://schemas.android.com/tools"
+android:id="@+id/linearLayout"
+android:layout_width="match_parent"
+android:layout_height="match_parent"
+android:paddingLeft="@dimen/margin_large"
+android:paddingTop="@dimen/margin_medium"
+android:paddingRight="@dimen/margin_large"
+android:paddingBottom="@dimen/margin_medium"
+tools:ignore="VectorDrawableCompat">
+
+<TextView
+	android:id="@+id/textView"
+	android:layout_width="match_parent"
+	android:layout_height="wrap_content"
+	android:layout_marginTop="24dp"
+	android:gravity="center"
+	android:text="@string/remote_wipe_activate_explain_short"
+	android:textSize="24sp"
+	app:layout_constraintTop_toTopOf="parent"
+	tools:layout_editor_absoluteX="16dp" />
+
+<ImageView
+	android:id="@+id/imageView"
+	android:layout_width="wrap_content"
+	android:layout_height="wrap_content"
+	android:layout_marginTop="24dp"
+	app:layout_constraintEnd_toEndOf="parent"
+	app:layout_constraintStart_toStartOf="parent"
+	app:layout_constraintTop_toBottomOf="@+id/textView"
+	app:srcCompat="@drawable/remote_wipe_activate_explain" />
+
+<TextView
+	android:id="@+id/textViewExplain"
+	android:layout_width="match_parent"
+	android:layout_height="wrap_content"
+	android:layout_marginTop="24dp"
+	android:gravity="center"
+	android:text="@string/remote_wipe_activate_explain_long"
+	android:textSize="20sp"
+	app:layout_constraintEnd_toEndOf="parent"
+	app:layout_constraintStart_toStartOf="parent"
+	app:layout_constraintTop_toBottomOf="@+id/imageView"
+	tools:layout_editor_absoluteX="16dp" />
+
+<Button
+	android:id="@+id/button_confirm"
+	android:layout_width="match_parent"
+	android:layout_height="wrap_content"
+	android:layout_marginTop="24dp"
+	android:text="@string/remote_wipe_activate_button_confirm"
+	app:layout_constraintEnd_toEndOf="parent"
+	app:layout_constraintHorizontal_bias="0.0"
+	app:layout_constraintStart_toStartOf="parent"
+	app:layout_constraintTop_toBottomOf="@+id/textViewExplain" />
+
+	<Button
+		android:id="@+id/button_cancel"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		android:text="@string/remote_wipe_activate_button_cancel"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintHorizontal_bias="0.0"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@+id/button_confirm" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_existing_backup.xml

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <androidx.constraintlayout.widget.ConstraintLayout
 	xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:tools="http://schemas.android.com/tools"
 	xmlns:app="http://schemas.android.com/apk/res-auto"
 	android:layout_width="match_parent"
 
@@ -11,25 +10,35 @@
 	android:paddingBottom="@dimen/margin_medium"
 	android:layout_height="match_parent">
 
+
 	<TextView
-		android:id="@+id/textViewThreshold"
+		android:id="@+id/textViewThresholdRepresentation"
 		android:layout_width="wrap_content"
 		android:layout_height="wrap_content"
 		android:gravity="center"
-		android:text="placeholder threshold"
-		android:textSize="16sp"
+		android:textSize="64sp"
 		app:layout_constraintEnd_toEndOf="parent"
 		app:layout_constraintStart_toStartOf="parent"
 		app:layout_constraintTop_toTopOf="parent" />
 
 	<TextView
-		android:id="@+id/textViewCustodians"
+		android:id="@+id/textViewThreshold"
 		android:layout_width="wrap_content"
 		android:layout_height="wrap_content"
 		android:gravity="center"
-		android:text="@string/backup_done_info"
 		android:textSize="16sp"
 		app:layout_constraintEnd_toEndOf="parent"
 		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/textViewThreshold" />
+		app:layout_constraintTop_toBottomOf="@+id/textViewThresholdRepresentation" />
+
+	<org.briarproject.briar.android.view.BriarRecyclerView
+		android:id="@+id/custodianList"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@id/textViewThreshold"
+		app:scrollToEnd="false" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_mockups.xml

@@ -1,130 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:app="http://schemas.android.com/apk/res-auto"
-	xmlns:tools="http://schemas.android.com/tools"
-	android:layout_width="match_parent"
-	android:layout_height="match_parent">
-
-	<LinearLayout
-		android:id="@+id/linearLayout"
-		android:layout_width="match_parent"
-		android:layout_height="match_parent"
-		android:orientation="vertical"
-		android:paddingLeft="@dimen/margin_large"
-		android:paddingTop="@dimen/margin_medium"
-		android:paddingRight="@dimen/margin_large"
-		android:paddingBottom="@dimen/margin_medium">
-
-		<TextView
-			android:layout_width="wrap_content"
-			android:layout_height="wrap_content"
-			android:text="Backup creation" />
-
-		<Button
-			android:id="@+id/buttonSelectThreshold"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Select Threshold" />
-
-		<Button
-			android:id="@+id/buttonShardsSent"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Shards sent" />
-
-		<TextView
-			android:layout_width="wrap_content"
-			android:layout_height="wrap_content"
-			android:text="Setup" />
-
-		<Button
-			android:id="@+id/buttonWelcome"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Welcome" />
-
-		<TextView
-			android:layout_width="wrap_content"
-			android:layout_height="wrap_content"
-			android:text="Recovery from secrect owner's point of view" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryExplainer"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Explainer" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryReceivedShard"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Shard received" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryMain1"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Main (0 shards)" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryMain2"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Main (1 shard)" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryMain3"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Recovering account…" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryAccountRecovered"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Account recovered" />
-
-		<Button
-			android:id="@+id/buttonOwnerRecoveryErrorExplainer"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Error" />
-
-		<TextView
-			android:layout_width="wrap_content"
-			android:layout_height="wrap_content"
-			android:text="Recovery from custodian's point of view" />
-
-		<Button
-			android:id="@+id/buttonCustodianRecoveryExplainer"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Explainer" />
-
-		<Button
-			android:id="@+id/buttonCustodianRecoveryErrorExplainer"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Error" />
-
-		<Button
-			android:id="@+id/buttonCustodianRecoveryDone"
-			android:layout_width="match_parent"
-			android:layout_height="wrap_content"
-			android:drawableLeft="@drawable/ic_security"
-			android:text="Done" />
-
-	</LinearLayout>
-</ScrollView>

briar-android/src/main/res/layout/fragment_new_or_recover.xml

@@ -13,22 +13,38 @@
 
 	<Button
 		android:id="@+id/buttonSetupNewAccount"
+		style="@style/BriarButton"
 		android:layout_width="match_parent"
 		android:layout_height="wrap_content"
-		android:drawableLeft="@drawable/ic_contacts"
 		android:text="@string/setup_new_account"
+		android:drawableLeft="@drawable/ic_contacts"
 		app:layout_constraintEnd_toEndOf="parent"
 		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toTopOf="parent" />
-
+		app:layout_constraintTop_toTopOf="parent"
+		android:drawableStart="@drawable/ic_contacts" />
+	<TextView
+		android:id="@+id/textViewExplain"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		android:gravity="center"
+		android:text="@string/custodian_recovery_explainer_extra"
+		android:textSize="20sp"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@+id/buttonSetupNewAccount"
+		tools:layout_editor_absoluteX="16dp" />
 	<Button
-		android:id="@+id/buttonRestoreAccount"
+		android:id="@+id/buttonRestoreAccount2"
+		style="@style/BriarButton"
 		android:layout_width="match_parent"
 		android:layout_height="wrap_content"
 		android:drawableLeft="@drawable/ic_repeat"
 		android:text="@string/setup_restore_account"
 		app:layout_constraintEnd_toEndOf="parent"
 		app:layout_constraintStart_toStartOf="parent"
-		app:layout_constraintTop_toBottomOf="@+id/buttonSetupNewAccount" />
+		app:layout_constraintTop_toBottomOf="@+id/textViewExplain"
+		tools:enabled="true"
+		android:drawableStart="@drawable/ic_repeat" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_remote_wipe_display.xml

@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto"
+	xmlns:tools="http://schemas.android.com/tools"
+	android:id="@+id/linearLayout"
+	android:layout_width="match_parent"
+	android:layout_height="match_parent"
+	android:paddingLeft="@dimen/margin_large"
+	android:paddingTop="@dimen/margin_medium"
+	android:paddingRight="@dimen/margin_large"
+	android:paddingBottom="@dimen/margin_medium"
+	tools:ignore="VectorDrawableCompat">
+
+	<TextView
+		android:id="@+id/text_view_explain"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		android:gravity="center"
+		android:text="@string/remote_wipe_display_explain"
+		android:textSize="16sp"
+		app:layout_constraintTop_toTopOf="parent"
+		tools:layout_editor_absoluteX="16dp" />
+
+	<Button
+		android:id="@+id/button_cancel"
+		style="@style/BriarButtonFlat.Negative.Tiny"
+		android:layout_width="0dp"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		android:text="@string/remote_wipe_disable"
+		app:layout_constraintBottom_toBottomOf="@+id/button_change"
+		app:layout_constraintEnd_toStartOf="@id/button_change"
+		app:layout_constraintHorizontal_weight="1"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@id/text_view_explain" />
+
+	<Button
+		android:id="@+id/button_change"
+		style="@style/BriarButtonFlat.Positive.Tiny"
+		android:layout_width="0dp"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		android:text="@string/remote_wipe_modify_contacts"
+		app:layout_constraintHorizontal_weight="1"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintStart_toEndOf="@id/button_cancel"
+		app:layout_constraintTop_toBottomOf="@id/text_view_explain" />
+
+	<org.briarproject.briar.android.view.BriarRecyclerView
+		android:id="@+id/wiperList"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@id/button_change"
+		app:scrollToEnd="false" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_remote_wipe_setup_explainer.xml

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto"
+	xmlns:tools="http://schemas.android.com/tools"
+	android:id="@+id/linearLayout"
+	android:layout_width="match_parent"
+	android:layout_height="match_parent"
+	android:paddingLeft="@dimen/margin_large"
+	android:paddingTop="@dimen/margin_medium"
+	android:paddingRight="@dimen/margin_large"
+	android:paddingBottom="@dimen/margin_medium"
+	tools:ignore="VectorDrawableCompat">
+
+	<TextView
+		android:id="@+id/textView"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		android:gravity="center"
+		android:text="@string/remote_wipe_setup_explain_title"
+		android:textSize="24sp"
+		app:layout_constraintTop_toTopOf="parent"
+		tools:layout_editor_absoluteX="16dp" />
+
+	<ImageView
+		android:id="@+id/imageView"
+		android:layout_width="wrap_content"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@+id/textView"
+		app:srcCompat="@drawable/remote_wipe_activate_explain" />
+
+	<TextView
+		android:id="@+id/textViewExplain"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		android:gravity="center"
+		android:text="@string/remote_wipe_setup_explain_long"
+
+		android:textSize="20sp"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@+id/imageView"
+		tools:layout_editor_absoluteX="16dp" />
+
+	<Button
+		android:id="@+id/button_confirm"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		android:text="@string/title_select_wipers"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintHorizontal_bias="0.0"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@+id/textViewExplain" />
+
+	<Button
+		android:id="@+id/button_cancel"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		android:text="@string/remote_wipe_activate_button_cancel"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintHorizontal_bias="0.0"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@+id/button_confirm" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_revoke_remote_wipe_success.xml

@@ -15,7 +15,7 @@
 		android:layout_width="wrap_content"
 		android:layout_height="wrap_content"
 		android:layout_marginTop="32dp"
-		android:text="@string/ok"
+		android:text="@string/button_confirm"
 		android:textSize="24sp"
 		app:layout_constraintEnd_toEndOf="parent"
 		app:layout_constraintStart_toStartOf="parent"
@@ -27,7 +27,7 @@
 		android:layout_height="wrap_content"
 		android:layout_marginTop="16dp"
 		android:gravity="center"
-		android:text="@string/custodian_shard_sent"
+		android:text="@string/remote_wipe_revoke_success"
 		android:textSize="30sp"
 		app:layout_constraintEnd_toEndOf="parent"
 		app:layout_constraintStart_toStartOf="parent"
@@ -48,3 +48,4 @@
 		app:layout_constraintTop_toTopOf="parent"
 		app:srcCompat="@drawable/ic_baseline_done_outline_24" />
 </androidx.constraintlayout.widget.ConstraintLayout>
+

briar-android/src/main/res/layout/fragment_select_threshold.xml

@@ -45,7 +45,7 @@
         app:layout_constraintTop_toBottomOf="@+id/seekBar" />
 
     <TextView
-        android:id="@+id/textViewmOfn"
+        android:id="@+id/text_view_m_of_n"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginTop="24dp"
@@ -55,6 +55,17 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/textViewThresholdRepresentation" />
 
+    <org.briarproject.briar.android.login.StrengthMeter
+        android:id="@+id/strength_meter"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="24dp"
+        android:visibility="visible"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/text_view_m_of_n"
+        tools:visibility="visible" />
+
     <TextView
         android:id="@+id/textViewMessage"
         android:layout_width="wrap_content"
@@ -64,6 +75,6 @@
         android:textSize="16dp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textViewmOfn" />
+        app:layout_constraintTop_toBottomOf="@+id/strength_meter" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_setup_author_name.xml

@@ -47,14 +47,28 @@
 			android:layout_height="wrap_content"
 			android:layout_marginTop="@dimen/margin_activity_horizontal"
 			android:enabled="false"
-			android:text="@string/setup_next"
-			app:layout_constraintBottom_toBottomOf="parent"
+			android:text="@string/setup_new_account"
 			app:layout_constraintLeft_toLeftOf="parent"
 			app:layout_constraintRight_toRightOf="parent"
 			app:layout_constraintTop_toBottomOf="@+id/nickname_entry_wrapper"
 			app:layout_constraintVertical_bias="1.0"
 			tools:enabled="true" />
 
+		<Button
+			android:id="@+id/buttonRestoreAccount"
+			style="@style/BriarButtonFlat.Positive.Tiny"
+			android:textColor="@drawable/button_positive_tiny_disable"
+			android:layout_width="match_parent"
+			android:layout_height="wrap_content"
+			android:layout_marginTop="@dimen/margin_activity_horizontal"
+			android:text="@string/setup_restore_account"
+			app:layout_constraintBottom_toBottomOf="parent"
+			app:layout_constraintLeft_toLeftOf="parent"
+			app:layout_constraintRight_toRightOf="parent"
+			app:layout_constraintTop_toBottomOf="@+id/next"
+			app:layout_constraintVertical_bias="1.0"
+			tools:enabled="true" />
+
 	</androidx.constraintlayout.widget.ConstraintLayout>
 
 </ScrollView>

briar-android/src/main/res/layout/fragment_shards_sent.xml

@@ -1,50 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/linearLayout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:paddingLeft="@dimen/margin_large"
-    android:paddingTop="@dimen/margin_medium"
-    android:paddingRight="@dimen/margin_large"
-    android:paddingBottom="@dimen/margin_medium">
-
-    <Button
-        android:id="@+id/button"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="32dp"
-        android:text="@string/ok"
-        android:textSize="24sp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textView2" />
-
-    <TextView
-        android:id="@+id/textView2"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
-        android:text="@string/backup_done_info"
-        android:gravity="center"
-        android:textSize="30sp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/imageView2" />
-
-    <ImageView
-        android:id="@+id/imageView2"
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_marginStart="32dp"
-        android:layout_marginLeft="32dp"
-        android:layout_marginTop="8dp"
-        android:layout_marginEnd="32dp"
-        android:layout_marginRight="32dp"
-        app:layout_constraintDimensionRatio="1:1"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:srcCompat="@drawable/ic_baseline_done_outline_24" />
-</androidx.constraintlayout.widget.ConstraintLayout>

briar-android/src/main/res/layout/fragment_social_backup_setup_explainer.xml

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto"
+	xmlns:tools="http://schemas.android.com/tools"
+	android:id="@+id/linearLayout"
+	android:layout_width="match_parent"
+	android:layout_height="match_parent"
+	android:paddingLeft="@dimen/margin_large"
+	android:paddingTop="@dimen/margin_medium"
+	android:paddingRight="@dimen/margin_large"
+	android:paddingBottom="@dimen/margin_medium"
+	tools:ignore="VectorDrawableCompat">
+
+	<TextView
+		android:id="@+id/textView"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		android:gravity="center"
+		android:text="@string/social_backup_setup_explainer_title"
+		android:textSize="24sp"
+		app:layout_constraintTop_toTopOf="parent"
+		tools:layout_editor_absoluteX="16dp" />
+
+	<ImageView
+		android:id="@+id/imageView"
+		android:layout_width="wrap_content"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="12dp"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@+id/textView"
+		app:srcCompat="@drawable/ic_social_backup_group" />
+
+	<TextView
+		android:id="@+id/textViewExplain"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="12dp"
+		android:gravity="center"
+		android:text="@string/social_backup_setup_explainer_long"
+		android:textSize="20sp"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@+id/imageView"
+		tools:layout_editor_absoluteX="16dp" />
+
+	<Button
+		android:id="@+id/button"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="24dp"
+		android:text="@string/social_backup_setup_explainer_button"
+		app:layout_constraintEnd_toEndOf="parent"
+		app:layout_constraintHorizontal_bias="0.0"
+		app:layout_constraintStart_toStartOf="parent"
+		app:layout_constraintTop_toBottomOf="@+id/textViewExplain" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>