str4d
c822623677
Migrate Bluetooth protocol to BQP's master secret derivation
2016-02-02 02:45:49 +00:00
str4d
77e4ec381a
Implement BQP crypto
2016-02-02 02:45:49 +00:00
str4d
4d7a23779a
Rename crypto methods and constants for Bluetooth key agreement
2016-02-02 02:45:49 +00:00
akwizgran
88475bdd54
Transport properties client. #229
2016-01-27 12:51:55 +00:00
akwizgran
5355951466
Separate the sync layer from its clients. #112
2016-01-20 10:35:09 +00:00
akwizgran
3c6ead0603
Code clarity, more unit tests for ByteUtils.
...
Addresses comments for !48 .
2016-01-12 11:10:22 +00:00
akwizgran
99f8d21eea
Fixed a typo.
2016-01-04 12:47:49 +00:00
akwizgran
6a4aea77fb
Final crypto changes for BTPv2. #111
...
Use BLAKE2s to generate tags.
KDF arguments for key rotation.
Frame IV format.
2016-01-04 12:42:30 +00:00
akwizgran
7e115fed6d
Allow output shorter than getDigestSize().
2016-01-01 14:28:38 +00:00
akwizgran
7c1ee9ce87
Restored accidentally deleted javadoc.
2015-12-31 17:46:18 +00:00
akwizgran
90af176810
Use BLAKE2s for hashing, key derivation and signatures.
...
SHA-256 is still used for password-based key derivation (will be replaced with Argon2) and Fortuna.
2015-12-31 17:42:11 +00:00
str4d
d5b347e6c9
BLAKE2s implementation
...
Implementation is based on the BLAKE2b implementation from BouncyCastle, and is
therefore licensed under the BouncyCastle license (which will make future
upstreaming of the code easier).
2015-12-31 16:01:33 +00:00
akwizgran
d7f204019d
Merge branch 'use-xsalsa20-poly1305' into 'master'
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Use XSalsa20-Poly1305 instead of AES-GCM for transport encryption and password storage.
This patch integrates @str4d's new authenticated cipher implementation. It depends on !18 .
See merge request !35
2015-12-28 18:07:20 +00:00
str4d
efa7ac00ea
Merge branch '190-key-manager-duplicates' into 'master'
...
Fix off-by-one error in key rotation
Fixes #190 .
See merge request !32
2015-12-23 19:41:21 +00:00
akwizgran
73bb3b0065
Fixed return value of process().
2015-12-18 16:47:01 +00:00
akwizgran
fc897bd1b9
Use XSalsa20-Poly1305 instead of AES-GCM. #111
2015-12-18 16:47:01 +00:00
akwizgran
6fab0e87e0
Better variable names.
2015-12-18 16:47:01 +00:00
akwizgran
a3ecd93999
Merge branch '169-blake2' into 'master'
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Switch KDF from SHA-256 to Blake2. #169
The BTP spec calls for Blake2s, but there's no Java implementation available. I suggest we go with Blake2b for now. If it turns out to be a performance bottleneck on 32-bit platforms we can consider implementing Blake2s and merging it upstream.
This depends on !13 .
See merge request !21
2015-12-18 16:43:45 +00:00
akwizgran
f2efe7f2ea
Implement stream header for BTPv2. #111
2015-12-18 13:34:02 +00:00
akwizgran
d2dea42cec
Fixed off-by-one error in key rotation. #190
2015-12-18 11:29:13 +00:00
akwizgran
c7e4d5ffa9
Merge branch '147-crypto_secretbox' into 'master'
...
147 crypto secretbox
Closes #147
See merge request !27
2015-12-17 09:23:26 +00:00
str4d
d9808c48f0
Implement XSalsa20/Poly1305
2015-12-16 19:51:14 +00:00
str4d
20b2bcb86f
Expand JavaDocs for AuthenticatedCipher
2015-12-16 19:50:57 +00:00
akwizgran
b29ff927b0
Switch KDF from SHA-256 to Blake2. #169
2015-12-15 13:21:06 +00:00
akwizgran
9868feeb2a
Refactor KeyManager and TagRecogniser. #55
2015-12-14 11:02:49 +00:00
akwizgran
8529c976c2
Renamed a bunch of lock variables.
...
"synchLock" will become confusing when we have lots of objects with "sync" in the name.
2015-12-03 16:39:53 +00:00
akwizgran
027ae8340f
Whitespace-only code formatting changes.
2015-11-30 09:38:25 +00:00
akwizgran
f8a4a4920d
Merge branch 'AbrahamKiggundu/briar-master': better lock encapsulation
2015-01-29 11:28:48 +00:00
akwizgran
0dbfd7073f
Comments to indicate which locks guard which variables.
2015-01-29 11:12:41 +00:00
akwizgran
47bd84122e
Code formatting and small cleanups.
2015-01-28 21:18:31 +00:00
akwizgran
7fbad8dc26
Use FortunaGenerator to implement PseudoRandom.
2015-01-14 20:46:03 +00:00
akwizgran
1c7432cac4
Use a provider to instantiate AuthenticatedCipher.
2015-01-14 19:59:38 +00:00
akwizgran
03247aedd6
Log how long it takes to generate and verify signatures.
2015-01-14 19:09:37 +00:00
akwizgran
112d80420c
Downgrade to 256-bit curve for performance.
...
Also reduced hash function to 256 bits because our target security level
is now 128 bits.
2015-01-09 13:23:44 +00:00
akwizgran
5d46d3a4b4
AuthenticatedCipher interface isn't needed outside crypto package.
2015-01-09 13:06:44 +00:00
akwizgran
dc5e37a96d
Remove AAD from AuthenticatedCipher interface.
2015-01-09 13:01:02 +00:00
Abraham Kiggundu
851151041e
Pull-Merge of latest changes from main repo
2015-01-08 11:54:47 +03:00
akwizgran
4e57029d98
Use constant-time GCM multiplier.
2015-01-06 19:30:11 +00:00
akwizgran
1f69f0d2f6
Variable-length frames (untested).
2015-01-05 17:35:45 +00:00
akwizgran
d3bf2d59a1
Use the same maximum frame length for all transports.
2015-01-05 16:24:44 +00:00
akwizgran
358166bc12
Don't try to erase secrets from memory.
...
1. The things we're really trying to protect - contact identities,
message contents, etc - can't be erased from memory because they're
encapsulated inside objects we don't control.
2. Long-term secrets can't be protected by erasing them from memory
because they're stored in the database and the database key has to be
held in memory whenever the app's running.
3. If the runtime uses a compacting garbage collector then we have no
way to ensure an object is erased from memory.
4. Trying to erase secrets from memory makes the code more complex.
Conclusion: Let's not try to protect secrets from an attacker who can
read arbitrary memory locations.
2014-12-29 21:08:27 +00:00
akwizgran
f316d64afa
Moved stream crypto to crypto component.
2014-12-29 19:55:05 +00:00
Abraham Kiggundu
9a2e93ebb9
cleanup
2014-12-26 17:35:37 +03:00
Abraham Kiggundu
b074978472
Improved encapsulation of thread synchronisation as follows
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- replaced use of Object instance mutex with a private final Lock object
- replaced Object signaling with specific condition signalling
2014-12-26 16:40:46 +03:00
akwizgran
8584194138
Removed redundant parameter checks.
2014-11-09 16:59:08 +00:00
akwizgran
9dbabdeceb
Document the contract of DatabaseExecutor.
2014-11-08 16:40:22 +00:00
akwizgran
7b8181e309
Massive refactoring to merge handling of simplex and duplex connections.
2014-11-04 16:51:25 +00:00
akwizgran
b24f153704
Renamed a load of things from 'connection' to 'stream'.
2014-10-08 16:21:55 +01:00
akwizgran
3dab4543e6
Combine the system's PRNG with Fortuna, in case either one is flawed.
2014-10-08 15:03:19 +01:00
akwizgran
bb38911dc8
SecureRandom impl that XORs the outputs of other impls (not yet used).
...
This can be used to combine e.g. the platform's SecureRandom
implementation with our own, so that a weakness in either source doesn't
harm security as long as the other source is strong.
2014-10-08 15:03:02 +01:00
