libolm - Implementation of the olm and megolm cryptographic ratchets

Age	Commit message (Collapse)	Author
2016-09-01	Fix Ed25519 keypair generation	Richard van der Hoff
	Ed25519 private keys, it turns out, have 64 bytes, not 32. We were previously generating only 32 bytes (which is all that is required to generate the public key), and then using the public key as the upper 32 bytes when generating the per-message session key. This meant that everything appeared to work, but the security of the private key was severely compromised. By way of fixes: * Use the correct algorithm for generating the Ed25519 private key, and store all 512 bits of it. * Update the account pickle format and refuse to load the old format (since we should consider it compromised). * Bump the library version, and add a function to retrieve the library version, so that applications can verify that they are linked against a fixed version of the library. * Remove the curve25519_{sign, verify} functions which were unused and of dubious quality.
2016-05-24	Fix up some names, and protobuf tags	Richard van der Hoff
	Make names (of session_key and message_index) more consistent. Use our own protobuf tags rather than trying to piggyback on the one-to-one structure.
2016-05-24	Implement decrypting inbound group messages	Richard van der Hoff
	Includes creation of inbound sessions, etc
2016-05-24	Implementation of an outbound group session	Richard van der Hoff

2016-05-24	Factor out olm_error_to_string to a separate file	Richard van der Hoff
	I want to be able to use this functionality from elsewhere, so factor it out to its own file.
2016-05-23	Convert error.hh to plain C	Richard van der Hoff