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Gallagher key checking is now supported on MIFARE Desfire

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Both `hf mfdes auth` and `hf mfdes chk` now support Key Diversification for
AN10922 and as special treat, Gallagher issued cards.

For `hf mfdes auth`:
```
    -d, --kdf <kdf>                Key Derivation Function (KDF) (0=None, 1=AN10922, 2=Gallagher)
    -i, --kdfi <kdfi>              KDF input (HEX 1-31 bytes)
```

And for `hf mfdes chk`:
```
    -f, --kdf <kdf>                Key Derivation Function (KDF) (0=None, 1=AN10922, Gallagher)
    -i, --kdfi <kdfi>              KDF input (HEX 1-31 bytes)
```

Examples:
- `hf mfdes auth -a 2081f4 -m 3 -t 4 -d 2 -n 2 -k 00112233445566778899aabbccddeeff`
  Will diversify the key for key `2` on AID `2081F4` for Gallagher issued cards

- `hf mfdes chk -f 1 -i 00112233 -d mfdes_default_keys`
  Will read in all the default keys from the dictionary, and diversify them
  using AN10922 with the input data `00112233`

- `hf mfdes chk -f 2 -d mfdes_default_keys`
  Will read in all the default keys from the dictionary, and diversify them
  using AN10922 but with input data generated from the card's UID, AID and
  key number.
This commit is contained in:
NZSmartie 2020-11-02 01:22:19 +13:00
commit c9a10631de
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5 changed files with 105 additions and 3 deletions
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2
common/generator.h
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@ -43,5 +43,7 @@ int mfc_algo_sky_all(uint8_t *uid, uint8_t *keys);
uint32_t lf_t55xx_white_pwdgen(uint32_t id);
int mfdes_kdf_input_gallagher(uint8_t *uid, uint8_t uidLen, uint8_t keyNo, uint32_t aid, uint8_t *kdfInputOut, uint8_t *kdfInputLen);
int generator_selftest(void);
#endif