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meshcore-spec/corpus/crypto/sha256/packet-hash.json
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swaitsandClaude Opus 4.6 9db901088e Add comprehensive spec audit results and pyMC_core issue reports
- CHANGELOG.md: Full audit findings organized by severity
- PYMC_CORE_ISSUES.md: 7 evidence-based bug reports for pyMC_core
  (wrong constants, broken path_len decoding, wrong TRACE hash,
  wrong SNR calculation)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Add comprehensive spec audit results and pyMC_core issue reports

- CHANGELOG.md: Full audit findings organized by severity
- PYMC_CORE_ISSUES.md: 7 evidence-based bug reports for pyMC_core
  (wrong constants, broken path_len decoding, wrong TRACE hash,
  wrong SNR calculation)
- Remove ERRATA.md: contents already covered by audit findings

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-01 21:37:57 -06:00

110 lines
3.4 KiB
JSON

{
"$schema": "../../schema/test-vector.schema.json",
"name": "SHA-256 Packet Hash",
"spec_ref": "spec/16-packet-hash.md",
"protocol_version": 0,
"description": "Tests MeshCore packet hash computation: SHA-256(payload_type || payload)[0..7]. TRACE packets additionally include path_len in the hash input.",
"vectors": [
{
"id": "phash-001",
"description": "Packet hash for ACK with CRC 0xDEADBEEF",
"type": "encode_decode",
"structured": {
"header": {
"version": 0,
"payload_type": "raw_custom",
"route_type": "flood"
},
"path": {
"hash_size": 1,
"hash_count": 0,
"hashes": []
},
"payload": {
"data": "1BEE08540E8F7E5B"
}
},
"binary": "3D 00 1BEE08540E8F7E5B",
"crypto_context": {
"plaintext": "03 EFBEADDE"
},
"notes": "SHA-256(0x03 || EFBEADDE)[0..7] = 1BEE08540E8F7E5B. Input: type byte 0x03 (ACK) + CRC 0xDEADBEEF as LE."
},
{
"id": "phash-002",
"description": "Packet hash for TRACE (path_len=0): includes path_len in hash",
"type": "encode_decode",
"structured": {
"header": {
"version": 0,
"payload_type": "raw_custom",
"route_type": "flood"
},
"path": {
"hash_size": 1,
"hash_count": 0,
"hashes": []
},
"payload": {
"data": "C105C34E45E60009"
}
},
"binary": "3D 00 C105C34E45E60009",
"crypto_context": {
"plaintext": "09 00 01000000 02000000 00"
},
"notes": "SHA-256(0x09 || 0x00 || tag=1_LE || auth=2_LE || flags=0)[0..7]. TRACE special case: path_len byte (0x00) included after type byte."
},
{
"id": "phash-003",
"description": "Packet hash for TRACE (path_len=3): different hash due to path_len",
"type": "encode_decode",
"structured": {
"header": {
"version": 0,
"payload_type": "raw_custom",
"route_type": "flood"
},
"path": {
"hash_size": 1,
"hash_count": 0,
"hashes": []
},
"payload": {
"data": "B83FB2E0EE276404"
}
},
"binary": "3D 00 B83FB2E0EE276404",
"crypto_context": {
"plaintext": "09 03 01000000 02000000 00"
},
"notes": "Same TRACE payload but path_len=3 instead of 0. Different hash proves path_len is included in computation."
},
{
"id": "phash-004",
"description": "Packet hash for ADVERT (all-AA pubkey, ts=0, all-BB sig)",
"type": "encode_decode",
"structured": {
"header": {
"version": 0,
"payload_type": "raw_custom",
"route_type": "flood"
},
"path": {
"hash_size": 1,
"hash_count": 0,
"hashes": []
},
"payload": {
"data": "F73157720FB1B5E1"
}
},
"binary": "3D 00 F73157720FB1B5E1",
"crypto_context": {
"plaintext": "04 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA 00000000 BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB"
},
"notes": "SHA-256(0x04 || advert_payload)[0..7]. Type 0x04 = ADVERT. Not a TRACE, so path_len is NOT included."
}
]
}