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https://github.com/Kpa-clawbot/meshcore-analyzer.git
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Michael J. Arcan
6a32ec2b2d
## Fixes #1729 The firmware-default **Public** channel (channel-hash byte `0x11` = 17) was rendered as an opaque **"Encrypted (0x11)"** row at the bottom of the analytics Channels tab, despite the key being well-known and builtin. ## Root cause `computeAnalyticsChannels` applied the #978 rainbow-table validation (`SHA256(SHA256("#name")[:16])[0]`, the **hashtag** hash scheme) to every decoded channel name. The Public channel is a **PSK** channel whose hash byte is key-derived (`SHA256(key)[0]` = 17), not hashtag-derived (`186` for `#Public`). So the ingestor-decoded name `"Public"` failed the hashtag check and was discarded, the row forced to `encrypted=true, name="ch17"`. ## Fix Trust the ingestor's `decryptionStatus`. The ingestor already persists `decryptionStatus:"decrypted"` when it decoded a packet with a real key (PSK), and `"no_key"` / `"decryption_failed"` otherwise. When the packet is `decrypted`, skip the hashtag hash check and keep the name — it came from a key-based decryption, not a rainbow-table lookup. The #978 mismatch rejection still applies to non-decrypted packets, so rainbow-table collisions are still caught. Frontend needs no change: `encrypted=false, name="Public"` lands in the "Network" group (top), not "Encrypted". ## Tests - `makeGrpTx` gains `makeGrpTxWithStatus` companion to set `decryptionStatus`. - `TestComputeAnalyticsChannels_PublicChannelPreserved`: hash 17 / "Public" / `decrypted` → name stays `"Public"`, `encrypted=false`. - `TestComputeAnalyticsChannels_UndecryptedNameStillValidated`: a non-`decrypted` name failing the hashtag check is still downgraded to `ch17` (#978 regression guard). All channel-analytics tests pass; `go build ./...` clean. Co-authored-by: Waydroid Builder <build@waydroid.local> Co-authored-by: Claude <noreply@anthropic.com>