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feat(registers): NXP AES key-privilege register (ICODE DNA / NTAG5)

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Add NxpKeyPrivileges (Register) for the Table 5 AES key-privilege byte
and bind it on the NxpAesAuth mixin (ICODE DNA + NTAG5 Link/Boost):

- read / write / privacy / destroy / eas_afi / crypto_config /
  area1_read / area1_write, each a documented bit
- NxpKeyPrivileges.build(read=True, write=True, ...) keyword builder
- tag.key_privileges(key_id) / tag.set_key_privileges(key_id, value)

Additive: the existing PRIV_* constants and has_privilege() path are
unchanged and see the same bytes. 5 new tests.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
michael
2026-07-14 08:58:24 -07:00
parent f8d01a9120
commit e795b5bb1d
4 changed files with 82 additions and 1 deletions
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CLAUDE.md
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@@ -60,7 +60,7 @@ pm3py/
bitfield.py # BitField descriptor + Register base — self-describing config/
# frame registers (T5577, EM4100, NTAG21x, Ultralight EV1/C, MFC
# access bits, NTAG I2C NC_REG/NS_REG/REG_LOCK/PT_I2C, NTAG5
# STATUS_REG/CONFIG_REG). Fields are documented attrs -> shell
# STATUS_REG/CONFIG_REG, NXP AES key privileges). Documented attrs -> shell
# completion + repr decode table. Layouts cross-checked vs the
# firmware submodule + NXP datasheets.
hf/iso14443a/ # Tag14443A_3/4, MifareClassic, DESFire, NfcType2/4