b9d6e6d8c8
Main changes: - Extend saved addresses DB with sync info: sync timestamp, update timestamp and soft removed flag - Create custom protobuf message payload to sync saved addresses - Cleanup saved addresses on each start of messenger, by deleting soft removed older entries - Sync all saved addresses on Messenger.SyncDevices calls - Sync particular changes to saved addresses - Add SavedAddressManager instance to messenger - Note, can't find a clean way to pass the SavedAddressManager to the messenger, so we create another one - Add tests for sync and new DB API Closes: #7229
protocol/encryption package
Hash ratchet encryption
encryptor.GenerateHashRatchetKey() generates a hash ratchet key and stores it in in the DB.
There, 2 new tables are created: hash_ratchet_encryption and hash_ratchet_encryption_cache.
Each hash ratchet key is uniquely identified by the (groupId, keyId) pair, where keyId is derived from a clock value.
protocol.BuildHashRatchetKeyExchangeMessage builds an 1-on-1 message containing the hash ratchet key, given it's ID.
protocol.BuildHashRatchetMessage builds a hash ratchet message with arbitrary payload, given groupId. It will use the latest hash ratchet key available. encryptor.encryptWithHR encrypts the payload using Hash Ratchet algorithms. Intermediate hashes are stored in hash_ratchet_encryption_cache table.
protocol.HandleMessage uses encryptor.decryptWithHR fn for decryption.