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Andrea Maria Piana 360c2d50d4 Fix issues with out of order encryption and batched messages 
This commit fixes 3 issues:

1) In some cases, the hash ratchet was not correctly found
2) Out of order messages were not processed correctly as the wrong error
   was returned
3) Batched non datasync messages were not processed correctly

Fixes: #4170
 		2023-10-30 10:11:32 +00:00
..
github.com/protocol/encryption feat: display name 2022-03-14 13:48:34 -04:00
migrations Fix issues with out of order encryption and batched messages 2023-10-30 10:11:32 +00:00
multidevice fix: use proper migrations for protocol's test database 2023-10-03 15:11:58 +02:00
publisher using zap.NewNop() ignores configured log level 2021-08-19 11:35:40 +02:00
sharedsecret fix: use proper migrations for protocol's test database 2023-10-03 15:11:58 +02:00
README.md Communities encryption 2021-11-30 20:52:47 +02:00
encryption_multi_device_test.go fix: use proper migrations for protocol's test database 2023-10-03 15:11:58 +02:00
encryption_test.go Fix issues with out of order encryption and batched messages 2023-10-30 10:11:32 +00:00
encryptor.go Fix encryption id && rekey with a single message 2023-10-24 20:48:54 +01:00
helpers.go Fix encryption id && rekey with a single message 2023-10-24 20:48:54 +01:00
persistence.go Fix issues with out of order encryption and batched messages 2023-10-30 10:11:32 +00:00
persistence_keys_storage_test.go fix: use proper migrations for protocol's test database 2023-10-03 15:11:58 +02:00
persistence_test.go fix: use proper migrations for protocol's test database 2023-10-03 15:11:58 +02:00
protocol.go Fix encryption id && rekey with a single message 2023-10-24 20:48:54 +01:00
protocol_message.pb.go Fix issues with out of order encryption and batched messages 2023-10-30 10:11:32 +00:00
protocol_message.proto Fix encryption id && rekey with a single message 2023-10-24 20:48:54 +01:00
protocol_test.go fix: use proper migrations for protocol's test database 2023-10-03 15:11:58 +02:00
x3dh.go Create a home submodule for Eth node bridges- Rename StatusBackend to GethStatusBackend 2019-11-27 17:02:09 +01:00
x3dh_test.go Use goimports instead of gofmt 2020-01-06 10:17:23 +01:00

README.md

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.