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status-go/protocol/encryption
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Patryk Osmaczko 65be6f2b96 feat: add and distribute `chatIdentity.FirstMessageTimestamp` 
`FirstMessageTimestamp` enables members of the community to determine if
there are any messages they can fetch on the community channel(chat).

`FirstMessageTimestamp` is advertised by admin for each community chat
through `CommunityDescription`. It assumes admin is online frequently
enough to capture the first channel message.

For existing communities admin determines first message timestamp by
finding oldest chat message in its local database.

task: status-im/status-desktop#6731
 		2022-09-09 08:59:39 +02:00
..
github.com/protocol/encryption feat: display name 2022-03-14 13:48:34 -04:00
migrations feat: add and distribute `chatIdentity.FirstMessageTimestamp` 2022-09-09 08:59:39 +02:00
multidevice fix: close resultsets so we don't leak them (#1809) 2020-05-14 11:51:32 +01:00
publisher using zap.NewNop() ignores configured log level 2021-08-19 11:35:40 +02:00
sharedsecret Remove unnecessary logs & fix flaky test 2020-11-26 16:25:52 +01:00
README.md Communities encryption 2021-11-30 20:52:47 +02:00
encryption_multi_device_test.go Communities encryption 2021-11-30 20:52:47 +02:00
encryption_test.go Reduce max keep in tests 2022-07-07 13:35:12 +01:00
encryptor.go Communities encryption integration 2022-06-17 21:24:39 +03:00
persistence.go Communities encryption integration 2022-06-17 21:24:39 +03:00
persistence_keys_storage_test.go Move to monorepo structure (#1684) 2019-11-21 17:19:22 +01:00
persistence_test.go Use goimports instead of gofmt 2020-01-06 10:17:23 +01:00
protocol.go Communities encryption integration 2022-06-17 21:24:39 +03:00
protocol_message.pb.go Implement wallet connect session CRUD API 2022-08-19 12:32:00 +01:00
protocol_message.proto Communities encryption integration 2022-06-17 21:24:39 +03:00
protocol_test.go Communities encryption 2021-11-30 20:52:47 +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.