Igor Sirotin
b28d8c06cf
protobuf v36 added `--<lang>_prefix=COMMAND`, which runs a protoc plugin through a wrapper command instead of looking it up on PATH. That lets the Go generator be declared in go.mod like every other tool dependency, so its version is tracked in one place instead of three. go-generate-fast rejects protoc flags it doesn't know, so the fork pin moves to a commit that teaches it about --go_prefix. Part of #7099.
messaging/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.
BuildHashRatchetKeyExchangeMessage builds an 1-on-1 message containing the hash ratchet key, given it's ID.
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.
HandleMessage uses encryptor.decryptWithHR fn for decryption.