Commit Graph
3 Commits
Author SHA1 Message Date
catarrh 11d0f29b6a Add CAT (TS 102 223) command decoding + fix AUTHENTICATE naming
- CAT_COMMAND_TYPES: complete Type of Command table from TS 102 223 §9.4
- ENVELOPE_TYPES: D1-D7 envelope tags
- parse_tlv(): minimal BER-TLV parser
- decode_cat(): FETCH → proactive command name (via D0→81 type byte);
  ENVELOPE → envelope type name
- AUTHENTICATE (0x88/0x89) unified to 'AUTHENTICATE' (no suffix)
- decoded dict gains 'cat_command' field for FETCH/ENVELOPE
- tests/test_decode.py: 14 new tests (TLV, naming, CAT, tables)
2026-08-12 18:26:58 +03:00
catarrh e211dd91bc Add decode for change, fidi, atr, pps message types
decode_sniff_msg() dispatches to type-specific decoders:
- change: 4-byte flags bitmask → card insert/eject/reset/timeout
- fidi: 1-byte Fi/Di index → decoded values
- atr/pps: raw hex value
database.py now decodes all message types, not just tpdu.
2026-08-12 17:46:03 +03:00
catarrh 7ada4345b8 Add server-side APDU decoder (decode.py)
Pure Python, no dependencies. Decodes raw TPDU bytes into
structured JSON: CLA bitfield, INS->name via APDU_SPEC table,
P1/P2 field breakdown, body extraction, SW name lookup.
~40 command types, 40+ SW codes, known FID notes.

database.py: _row_to_message() calls decode_message() for tpdu
messages, adding 'decoded' field to API responses.

Decoding happens at query time, not storage time — no schema
migration, all past sessions get decode retroactively.
2026-08-12 17:21:25 +03:00