Kpa-clawbotandCopilot 91a8c0405f feat(go): implement channel decryption for GRP_TXT packets, fixes #176 ...

Go ingestor never had channel decryption — GRP_TXT packets were stored
with raw encrypted data while Node.js decoded them successfully.

Changes:
- decoder.go: Add decryptChannelMessage() implementing MeshCore channel
  crypto (HMAC-SHA256 MAC verification + AES-128-ECB decryption), matching
  the algorithm in @michaelhart/meshcore-decoder. Update decodeGrpTxt(),
  decodePayload(), and DecodePacket() to accept and pass channel keys.
  Add Payload fields: ChannelHashHex, DecryptionStatus, Channel, Text,
  Sender, SenderTimestamp.
- config.go: Add ChannelKeysPath and ChannelKeys fields to Config struct.
- main.go: Add loadChannelKeys() that loads channel-rainbow.json (same
  file used by Node.js server) from beside the config file, with env var
  and config overrides. Pass loaded keys through the decoder pipeline.
- decoder_test.go: Add 14 channel decryption tests covering valid
  decryption, MAC failure, wrong key, no-sender messages, bracket
  sender exclusion, key iteration, channelHashHex formatting, and
  decryption status states. Cross-validated against Node.js output.
- Update all DecodePacket/decodePayload/decodeGrpTxt/handleMessage call
  sites in test files to pass the new channelKeys parameter.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

2026-03-27 17:55:52 -07:00

..

ingestor

feat(go): implement channel decryption for GRP_TXT packets, fixes #176

2026-03-27 17:55:52 -07:00

server

fix: poll new observations for existing transmissions (fixes #174)

2026-03-27 17:26:26 -07:00