Move handshake keys from LocalAuthor to Account.

bramble-api/src/main/java/org/briarproject/bramble/api/db/DatabaseComponent.java

@@ -5,9 +5,9 @@ import org.briarproject.bramble.api.contact.ContactId;
 import org.briarproject.bramble.api.contact.PendingContact;
 import org.briarproject.bramble.api.contact.PendingContactId;
 import org.briarproject.bramble.api.crypto.SecretKey;
+import org.briarproject.bramble.api.identity.Account;
 import org.briarproject.bramble.api.identity.Author;
 import org.briarproject.bramble.api.identity.AuthorId;
-import org.briarproject.bramble.api.identity.LocalAuthor;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 import org.briarproject.bramble.api.plugin.TransportId;
 import org.briarproject.bramble.api.settings.Settings;
@@ -101,6 +101,11 @@ public interface DatabaseComponent {
 	<R, E extends Exception> R transactionWithNullableResult(boolean readOnly,
 			NullableDbCallable<R, E> task) throws DbException, E;
 
+	/**
+	 * Stores an account.
+	 */
+	void addAccount(Transaction txn, Account a) throws DbException;
+
 	/**
 	 * Stores a contact associated with the given local and remote pseudonyms,
 	 * and returns an ID for the contact.
@@ -127,11 +132,6 @@ public interface DatabaseComponent {
 	HandshakeKeySetId addHandshakeKeys(Transaction txn, PendingContactId p,
 			HandshakeKeys k) throws DbException;
 
-	/**
-	 * Stores a local pseudonym.
-	 */
-	void addLocalAuthor(Transaction txn, LocalAuthor a) throws DbException;
-
 	/**
 	 * Stores a local message.
 	 */
@@ -157,6 +157,13 @@ public interface DatabaseComponent {
 	TransportKeySetId addTransportKeys(Transaction txn, ContactId c,
 			TransportKeys k) throws DbException;
 
+	/**
+	 * Returns true if the database contains an account for the given pseudonym.
+	 * <p/>
+	 * Read-only.
+	 */
+	boolean containsAccount(Transaction txn, AuthorId local) throws DbException;
+
 	/**
 	 * Returns true if the database contains the given contact for the given
 	 * local pseudonym.
@@ -173,14 +180,6 @@ public interface DatabaseComponent {
 	 */
 	boolean containsGroup(Transaction txn, GroupId g) throws DbException;
 
-	/**
-	 * Returns true if the database contains the given local author.
-	 * <p/>
-	 * Read-only.
-	 */
-	boolean containsLocalAuthor(Transaction txn, AuthorId local)
-			throws DbException;
-
 	/**
 	 * Returns true if the database contains the given pending contact.
 	 * <p/>
@@ -247,6 +246,20 @@ public interface DatabaseComponent {
 	Collection<Message> generateRequestedBatch(Transaction txn, ContactId c,
 			int maxLength, int maxLatency) throws DbException;
 
+	/**
+	 * Returns the account for the local pseudonym with the given ID.
+	 * <p/>
+	 * Read-only.
+	 */
+	Account getAccount(Transaction txn, AuthorId a) throws DbException;
+
+	/**
+	 * Returns the accounts for all local pseudonyms.
+	 * <p/>
+	 * Read-only.
+	 */
+	Collection<Account> getAccounts(Transaction txn) throws DbException;
+
 	/**
 	 * Returns the contact with the given ID.
 	 * <p/>
@@ -316,20 +329,6 @@ public interface DatabaseComponent {
 	Collection<HandshakeKeySet> getHandshakeKeys(Transaction txn, TransportId t)
 			throws DbException;
 
-	/**
-	 * Returns the local pseudonym with the given ID.
-	 * <p/>
-	 * Read-only.
-	 */
-	LocalAuthor getLocalAuthor(Transaction txn, AuthorId a) throws DbException;
-
-	/**
-	 * Returns all local pseudonyms.
-	 * <p/>
-	 * Read-only.
-	 */
-	Collection<LocalAuthor> getLocalAuthors(Transaction txn) throws DbException;
-
 	/**
 	 * Returns the message with the given ID.
 	 * <p/>
@@ -542,6 +541,11 @@ public interface DatabaseComponent {
 	void receiveRequest(Transaction txn, ContactId c, Request r)
 			throws DbException;
 
+	/**
+	 * Removes an account (and all associated state) from the database.
+	 */
+	void removeAccount(Transaction txn, AuthorId a) throws DbException;
+
 	/**
 	 * Removes a contact (and all associated state) from the database.
 	 */
@@ -558,11 +562,6 @@ public interface DatabaseComponent {
 	void removeHandshakeKeys(Transaction txn, TransportId t,
 			HandshakeKeySetId k) throws DbException;
 
-	/**
-	 * Removes a local pseudonym (and all associated state) from the database.
-	 */
-	void removeLocalAuthor(Transaction txn, AuthorId a) throws DbException;
-
 	/**
 	 * Removes a message (and all associated state) from the database.
 	 */
@@ -620,7 +619,7 @@ public interface DatabaseComponent {
 			Collection<MessageId> dependencies) throws DbException;
 
 	/**
-	 * Sets the handshake key pair for the local pseudonym with the given ID.
+	 * Sets the handshake key pair for the account with the given ID.
 	 */
 	void setHandshakeKeyPair(Transaction txn, AuthorId local, byte[] publicKey,
 			byte[] privateKey) throws DbException;

bramble-api/src/main/java/org/briarproject/bramble/api/identity/Account.java

@@ -0,0 +1,96 @@
+package org.briarproject.bramble.api.identity;
+
+import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
+
+import java.util.Arrays;
+
+import javax.annotation.Nullable;
+import javax.annotation.concurrent.Immutable;
+
+import static org.briarproject.bramble.api.crypto.CryptoConstants.MAX_AGREEMENT_PUBLIC_KEY_BYTES;
+
+@Immutable
+@NotNullByDefault
+public class Account {
+
+	private final LocalAuthor localAuthor;
+	@Nullable
+	private final byte[] handshakePublicKey, handshakePrivateKey;
+	private final long created;
+
+	public Account(LocalAuthor localAuthor,
+			@Nullable byte[] handshakePublicKey,
+			@Nullable byte[] handshakePrivateKey, long created) {
+		if (handshakePublicKey != null) {
+			int keyLength = handshakePublicKey.length;
+			if (keyLength == 0 || keyLength > MAX_AGREEMENT_PUBLIC_KEY_BYTES)
+				throw new IllegalArgumentException();
+		}
+		this.localAuthor = localAuthor;
+		this.handshakePublicKey = handshakePublicKey;
+		this.handshakePrivateKey = handshakePrivateKey;
+		this.created = created;
+	}
+
+	/**
+	 * Returns the ID of the user's pseudonym.
+	 */
+	public AuthorId getId() {
+		return localAuthor.getId();
+	}
+
+	/**
+	 * Returns the user's pseudonym.
+	 */
+	public LocalAuthor getLocalAuthor() {
+		return localAuthor;
+	}
+
+	/**
+	 * Returns true if the account has a handshake key pair.
+	 */
+	public boolean hasHandshakeKeyPair() {
+		return handshakePublicKey != null && handshakePrivateKey != null;
+	}
+
+	/**
+	 * Returns the public key used for handshaking, or null if no key exists.
+	 */
+	@Nullable
+	public byte[] getHandshakePublicKey() {
+		return handshakePublicKey;
+	}
+
+	/**
+	 * Returns the private key used for handshaking, or null if no key exists.
+	 */
+	@Nullable
+	public byte[] getHandshakePrivateKey() {
+		return handshakePrivateKey;
+	}
+
+	/**
+	 * Returns the time the account was created, in milliseconds since the
+	 * Unix epoch.
+	 */
+	public long getTimeCreated() {
+		return created;
+	}
+
+	@Override
+	public int hashCode() {
+		return localAuthor.getId().hashCode();
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if (o instanceof Account) {
+			Account a = (Account) o;
+			return created == a.created &&
+					localAuthor.equals(a.localAuthor) &&
+					Arrays.equals(handshakePublicKey, a.handshakePublicKey) &&
+					Arrays.equals(handshakePrivateKey, a.handshakePrivateKey);
+		}
+		return false;
+	}
+}

bramble-api/src/main/java/org/briarproject/bramble/api/identity/AuthorFactory.java

@@ -19,9 +19,6 @@ public interface AuthorFactory {
 	/**
 	 * Creates a local author with the current format version and the given
 	 * name.
-	 *
-	 * @param handshakeKeys true if the local author should include handshake
-	 * keys.
 	 */
-	LocalAuthor createLocalAuthor(String name, boolean handshakeKeys);
+	LocalAuthor createLocalAuthor(String name);
 }

bramble-api/src/main/java/org/briarproject/bramble/api/identity/IdentityManager.java

@@ -17,12 +17,19 @@ public interface IdentityManager {
 	LocalAuthor createLocalAuthor(String name);
 
 	/**
-	 * Registers the given local identity with the manager. This method should
-	 * be called before {@link LifecycleManager#startServices(SecretKey)}. The
-	 * identity is stored when {@link LifecycleManager#startServices(SecretKey)}
-	 * is called.
+	 * Creates an account with the given name. The account includes a handshake
+	 * key pair.
 	 */
-	void registerLocalAuthor(LocalAuthor a);
+	@CryptoExecutor
+	Account createAccount(String name);
+
+	/**
+	 * Registers the given account with the manager. This method should be
+	 * called before {@link LifecycleManager#startServices(SecretKey)}. The
+	 * account is stored when {@link LifecycleManager#startServices(SecretKey)}
+	 * is called. The account must include a handshake key pair.
+	 */
+	void registerAccount(Account a);
 
 	/**
 	 * Returns the cached local identity or loads it from the database.

bramble-api/src/main/java/org/briarproject/bramble/api/identity/LocalAuthor.java

@@ -2,11 +2,8 @@ package org.briarproject.bramble.api.identity;
 
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
-import javax.annotation.Nullable;
 import javax.annotation.concurrent.Immutable;
 
-import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_PUBLIC_KEY_LENGTH;
-
 /**
  * A pseudonym for the local user.
  */
@@ -15,31 +12,11 @@ import static org.briarproject.bramble.api.identity.AuthorConstants.MAX_PUBLIC_K
 public class LocalAuthor extends Author {
 
 	private final byte[] privateKey;
-	@Nullable
-	private final byte[] handshakePublicKey, handshakePrivateKey;
-	private final long created;
 
 	public LocalAuthor(AuthorId id, int formatVersion, String name,
-			byte[] publicKey, byte[] privateKey, long created) {
+			byte[] publicKey, byte[] privateKey) {
 		super(id, formatVersion, name, publicKey);
 		this.privateKey = privateKey;
-		this.created = created;
-		handshakePublicKey = null;
-		handshakePrivateKey = null;
-	}
-
-	public LocalAuthor(AuthorId id, int formatVersion, String name,
-			byte[] publicKey, byte[] privateKey, byte[] handshakePublicKey,
-			byte[] handshakePrivateKey, long created) {
-		super(id, formatVersion, name, publicKey);
-		if (handshakePublicKey.length == 0 ||
-				handshakePublicKey.length > MAX_PUBLIC_KEY_LENGTH) {
-			throw new IllegalArgumentException();
-		}
-		this.privateKey = privateKey;
-		this.handshakePublicKey = handshakePublicKey;
-		this.handshakePrivateKey = handshakePrivateKey;
-		this.created = created;
 	}
 
 	/**
@@ -48,28 +25,4 @@ public class LocalAuthor extends Author {
 	public byte[] getPrivateKey() {
 		return privateKey;
 	}
-
-	/**
-	 * Returns the public key used for handshaking, or null if no key exists.
-	 */
-	@Nullable
-	public byte[] getHandshakePublicKey() {
-		return handshakePublicKey;
-	}
-
-	/**
-	 * Returns the private key used for handshaking, or null if no key exists.
-	 */
-	@Nullable
-	public byte[] getHandshakePrivateKey() {
-		return handshakePrivateKey;
-	}
-
-	/**
-	 * Returns the time the pseudonym was created, in milliseconds since the
-	 * Unix epoch.
-	 */
-	public long getTimeCreated() {
-		return created;
-	}
 }

bramble-api/src/test/java/org/briarproject/bramble/test/TestUtils.java

@@ -6,6 +6,7 @@ import org.briarproject.bramble.api.contact.ContactId;
 import org.briarproject.bramble.api.contact.PendingContact;
 import org.briarproject.bramble.api.contact.PendingContactId;
 import org.briarproject.bramble.api.crypto.SecretKey;
+import org.briarproject.bramble.api.identity.Account;
 import org.briarproject.bramble.api.identity.Author;
 import org.briarproject.bramble.api.identity.AuthorId;
 import org.briarproject.bramble.api.identity.LocalAuthor;
@@ -100,28 +101,20 @@ public class TestUtils {
 		return new SecretKey(getRandomBytes(SecretKey.LENGTH));
 	}
 
-	public static LocalAuthor getLocalAuthor() {
-		return getLocalAuthor(false);
+	public static Account getAccount() {
+		LocalAuthor localAuthor = getLocalAuthor();
+		byte[] handshakePub = getRandomBytes(MAX_AGREEMENT_PUBLIC_KEY_BYTES);
+		byte[] handshakePriv = getRandomBytes(MAX_AGREEMENT_PUBLIC_KEY_BYTES);
+		return new Account(localAuthor, handshakePub, handshakePriv, timestamp);
 	}
 
-	public static LocalAuthor getLocalAuthor(boolean withHandshakeKeys) {
+	public static LocalAuthor getLocalAuthor() {
 		AuthorId id = new AuthorId(getRandomId());
 		int nameLength = 1 + random.nextInt(MAX_AUTHOR_NAME_LENGTH);
 		String name = getRandomString(nameLength);
 		byte[] publicKey = getRandomBytes(MAX_PUBLIC_KEY_LENGTH);
 		byte[] privateKey = getRandomBytes(MAX_PUBLIC_KEY_LENGTH);
-		if (withHandshakeKeys) {
-			byte[] handshakePublicKey =
-					getRandomBytes(MAX_AGREEMENT_PUBLIC_KEY_BYTES);
-			byte[] handshakePrivateKey =
-					getRandomBytes(MAX_AGREEMENT_PUBLIC_KEY_BYTES);
-			return new LocalAuthor(id, FORMAT_VERSION, name, publicKey,
-					privateKey, handshakePublicKey, handshakePrivateKey,
-					timestamp);
-		} else {
-			return new LocalAuthor(id, FORMAT_VERSION, name, publicKey,
-					privateKey, timestamp);
-		}
+		return new LocalAuthor(id, FORMAT_VERSION, name, publicKey, privateKey);
 	}
 
 	public static Author getAuthor() {