Signal Protocol (Signal Messenger, formerly Axolotl / TextSecure) support for Telepathy

Submitted by Dennis Schridde

Assigned to Telepathy bugs list

Link to original bug (#94238)

Description

It would be nice if Telepathy would support the Axolotl protocol (Signal messenger, formerly TextSecure).

There are currently three implementations, for Android, iOS and Google Chrome:

• https://github.com/WhisperSystems/Signal-Android
• https://github.com/WhisperSystems/Signal-iOS
• https://github.com/WhisperSystems/Signal-Desktop

An implementation of the underlying protocol is available via the libaxolotl-c library:

• https://github.com/WhisperSystems/libaxolotl-c

The Java library contains more documentation:

• https://github.com/whispersystems/libaxolotl-java

The wire protocol is described here:

• https://github.com/WhisperSystems/Signal-Android/wiki/ProtocolV2

And the specs are available here:

• https://github.com/trevp/axolotl/wiki