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8 Commits

Author SHA1 Message Date
Moxie Marlinspike
9a0ed659f7 Initial support for sender keys. 2014-10-20 12:25:40 -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
0d532afd8e Rename 'device key' to 'signed prekey'. 2014-10-20 12:17:24 -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
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
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