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Author SHA1 Message Date
Moxie Marlinspike
006c9aae7b Only remove unsigned prekey if bundled message decrypts properly. 2014-10-20 12:25:39 -07:00
Moxie Marlinspike
b147a90463 This exception is never thrown. 2014-10-20 12:25:39 -07:00
Moxie Marlinspike
741171c49f Switch to CBC mode with a derived IV. 
1) Since we're not CPU or space constrained (and are in fact
   padding), and since keystream reuse would be more catastrophic
   than IV reuse without chosen plaintext.
 2014-10-20 12:25:39 -07:00
Moxie Marlinspike
c375ed8638 MIPS NDK support. Apparently there are mips devices... 2014-10-20 12:25:39 -07:00
Moxie Marlinspike
238f29c90a Updated to latest of Trevor's ref10-extract 2014-10-20 12:25:39 -07:00
Moxie Marlinspike
084f27a2e8 omg trevor 2014-10-20 12:25:39 -07:00
Moxie Marlinspike
27b5bf54cc Remove 1 mod 8. 2014-10-20 12:25:39 -07:00
Moxie Marlinspike
eda393b11c Minor refactoring and renaming. 2014-10-20 12:25:38 -07:00
Moxie Marlinspike
c330eef7b9 Make PreKeyWhisperMessage decrypt more reliably atomic. 2014-10-20 12:25:38 -07:00
Moxie Marlinspike
1eb3884b7a Update to latest ref10-extract ed25519 2014-10-20 12:25:38 -07:00
Moxie Marlinspike
5ea3b3038e Remove verification tag. 
1) Remove verification tag from PreKeyWhisperMessage.

2) Include sender and recipient identity keys in the MAC of
   each WhisperMessage.
 2014-10-20 12:25:38 -07:00
Moxie Marlinspike
641ac9aed9 Rename axolotl terminology. 
1) ephemeralKey -> ratchetKey

2) Have the caller specify Alice/Bob orientation.

3) Reorganize verification tag.

4) Remove verification tag from key exchange messages, replace
   with signatures in both directions.
 2014-10-20 12:25:38 -07:00
Moxie Marlinspike
82bd75fb75 Fix padding problem. 2014-10-20 12:25:38 -07:00
Moxie Marlinspike
c94a7b1eff Make sure "previous counter" is never negative. 2014-10-20 12:25:38 -07:00
Moxie Marlinspike
4caebdcd06 Update tests for new API. 2014-10-20 12:25:38 -07:00
Moxie Marlinspike
b3cece27d6 Update SessionCipher javadocs. 2014-10-20 12:25:38 -07:00
Moxie Marlinspike
819982af7b Rearrange decrypt API. 
1) Change SessionBuilder to only establish sessions via
   KeyExchangeMessage and PreKeyBundles.

2) Change SessionCipher to decrypt either WhisperMessage
   or PreKeyWhisperMessage items, automatically building
   a session for the latter.

3) Change SessionCipher to tear down new sessions built
   with PreKeyWhisperMessages if the embedded WhsiperMessage
   fails to decrypt.
 2014-10-20 12:25:38 -07:00
Moxie Marlinspike
42cf53e487 Rename "pendingPreKey" to "unacknowledgedPreKeyMessage" 2014-10-20 12:23:15 -07:00
Moxie Marlinspike
e0d2398ca5 Rename InitializationParameters -> AxolotlParameters 2014-10-20 12:23:14 -07:00
Moxie Marlinspike
3f299936bf Only create signed prekey if push registered. 2014-10-20 12:23:14 -07:00
Moxie Marlinspike
540592d71f Upgrade libaxolotl to the latest gradle plugin. 2014-10-20 12:23:14 -07:00
Moxie Marlinspike
5a9e5672d3 Updated README 2014-10-20 12:23:11 -07:00
Moxie Marlinspike
0a23b5fcd5 Added helper method for generating signed PreKeys. 2014-10-20 12:23:10 -07:00
Moxie Marlinspike
f0c22d593f Simplify/clarify internal interfaces and introduce optional types. 2014-10-20 12:23:10 -07:00
Moxie Marlinspike
5f5ddd7c26 Generate SignedPreKey records, improve SignedPreKey cleanup. 2014-10-20 12:23:08 -07:00
Moxie Marlinspike
144f269059 Upgrade curve25519-donna to latest. 2014-10-20 12:17:24 -07:00
Moxie Marlinspike
0d532afd8e Rename 'device key' to 'signed prekey'. 2014-10-20 12:17:24 -07:00
Moxie Marlinspike
07fd17ccda Add padding for push messages. 
1) Use 'bit padding.'

1) By default, pad at 160 byte increments.
 2014-10-20 12:17:23 -07:00
Moxie Marlinspike
fcaa3f0d73 Simplify HKDF interface. 2014-10-20 12:17:23 -07:00
Moxie Marlinspike
64b40df15b Add V3 support for KeyExchangeMessage case. 
1) V3 KeyExchangeMessages can now contain signatures and
   verification tags.
 2014-10-20 12:17:23 -07:00
Moxie Marlinspike
77ff9cece8 Add a 'verification tag' to incoming PreKeyWhisperMessage bundles. 2014-10-20 12:17:23 -07:00
Moxie Marlinspike
6326ef73f3 Split HKDF secret derivation and parsing. 2014-10-20 12:17:23 -07:00
Moxie Marlinspike
f29d1e6269 Add support for a compliant HKDF implementation. 2014-10-20 12:17:23 -07:00
Moxie Marlinspike
d6c5e92c9d Collapse RatchetingSessionV2 and RatchetingSessionV3. 2014-10-20 12:17:23 -07:00
Moxie Marlinspike
811479d168 Add first cut of protocol v3 support. 
1) Use the new /v2/keys API for storing/retrieving prekey bundles.

2) For sessions built with PreKeyBundle and PreKeyWhisperMessage,
   use a v3 ratcheting session when available.
 2014-10-20 12:17:23 -07:00
Moxie Marlinspike
2ed8d333d9 Add ed25519 2014-10-20 12:14:18 -07:00
Moxie Marlinspike
79020cd33c Better FS Locking. 2014-10-20 12:14:18 -07:00
Moxie Marlinspike
c8757c2134 Make helper static. 2014-10-20 12:14:18 -07:00
Moxie Marlinspike
2a65257182 Add serialization helpers for IdentityKeyPair. 2014-10-20 12:14:18 -07:00
Moxie Marlinspike
931605a1c4 Move identity key verification into libaxolotol. With tests. 2014-10-20 12:14:18 -07:00
Moxie Marlinspike
81ae9af2e4 Add "last resort" PreKey generation to KeyHelper. 2014-10-20 12:14:17 -07:00
Moxie Marlinspike
e84a0948e9 Update README 2014-10-20 12:14:17 -07:00
Moxie Marlinspike
5239b3e8f8 Add basic README. 2014-10-20 12:14:17 -07:00
Moxie Marlinspike
a601c56af1 Collapse SessionRecord, SessionState, and PreKeyRecord interfaces. 2014-10-20 12:14:17 -07:00
Moxie Marlinspike
5a3c19fe3e Javadocs, and some minor refactoring. 2014-10-20 12:14:17 -07:00
Moxie Marlinspike
af45e5d544 SessionBuilder improvements, more extensive SessionBuilder tests. 2014-10-20 12:14:17 -07:00
Moxie Marlinspike
72af8b11c2 Move session construction and KeyExchangeMessage into libaxolotl. 
1) Add plain two-way key exchange support libaxolotl by moving
   all the KeyExchangeMessage code there.

2) Move the bulk of KeyExchangeProcessor code to libaxolotl
   for setting up sessions based on retrieved prekeys, received
   prekeybundles, or exchanged key exchange messages.
 2014-10-20 12:14:17 -07:00
Moxie Marlinspike
a1db221caf Collapse KeyExchangeMessage and KeyExchangeProcessor interfaces. 2014-10-20 12:14:17 -07:00
Moxie Marlinspike
14b8f97de2 Reorganize session store load/store operations. 2014-10-20 12:14:17 -07:00
Moxie Marlinspike
d902c12941 Break core ratchet out into libaxolotol. 
1) Break the core cryptography functions out into libaxolotol.

2) The objective for this code is a Java library that isn't
   dependent on any Android functions.  However, while the
   code has been separated from any Android functionality,
   it is still an 'android library project' because of the
   JNI.
 2014-10-20 12:10:02 -07:00