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move crc to new file

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This commit is contained in:
merlokk 2021-07-10 15:10:15 +03:00
parent b6e6070bfe
commit e54f0e3a33
4 changed files with 34 additions and 34 deletions

28
client/src/mifare/desfire_crypto.c
View file

@ -967,31 +967,3 @@ void mifare_cypher_blocks_chained(desfiretag_t tag, desfirekey_t key, uint8_t *i
offset += block_size;
}
}
void desfire_crc32(const uint8_t *data, const size_t len, uint8_t *crc) {
crc32_ex(data, len, crc);
}
void desfire_crc32_append(uint8_t *data, const size_t len) {
crc32_ex(data, len, data + len);
}
bool desfire_crc32_check(uint8_t *data, const size_t len, uint8_t *crc) {
uint8_t ccrc[4] = {0};
desfire_crc32(data, len, ccrc);
return (memcmp(ccrc, crc, 4) == 0);
}
void iso14443a_crc_append(uint8_t *data, size_t len) {
return compute_crc(CRC_14443_A, data, len, data + len, data + len + 1);
}
void iso14443a_crc(uint8_t *data, size_t len, uint8_t *pbtCrc) {
return compute_crc(CRC_14443_A, data, len, pbtCrc, pbtCrc + 1);
}
bool iso14443a_crc_check(uint8_t *data, const size_t len, uint8_t *crc) {
uint8_t ccrc[2] = {0};
iso14443a_crc(data, len, ccrc);
return (memcmp(ccrc, crc, 2) == 0);
}

6
client/src/mifare/desfire_crypto.h
View file

@ -147,10 +147,4 @@ void cmac(const desfirekey_t key, uint8_t *ivect, const uint8_t *data, size_t l
void mifare_kdf_an10922(const desfirekey_t key, const uint8_t *data, size_t len);
void desfire_crc32(const uint8_t *data, const size_t len, uint8_t *crc);
void desfire_crc32_append(uint8_t *data, const size_t len);
bool desfire_crc32_check(uint8_t *data, const size_t len, uint8_t *crc);
void iso14443a_crc_append(uint8_t *data, size_t len);
void iso14443a_crc(uint8_t *data, size_t len, uint8_t *pbtCrc);
bool iso14443a_crc_check(uint8_t *data, const size_t len, uint8_t *crc);
#endif

28
client/src/mifare/desfirecrypto.c
View file

@ -308,3 +308,31 @@ void DesfireCryptoCMAC(DesfireContext *ctx, uint8_t *data, size_t len, uint8_t *
memcpy(cmac, ctx->IV, kbs);
}
void desfire_crc32(const uint8_t *data, const size_t len, uint8_t *crc) {
crc32_ex(data, len, crc);
}
void desfire_crc32_append(uint8_t *data, const size_t len) {
crc32_ex(data, len, data + len);
}
bool desfire_crc32_check(uint8_t *data, const size_t len, uint8_t *crc) {
uint8_t ccrc[4] = {0};
desfire_crc32(data, len, ccrc);
return (memcmp(ccrc, crc, 4) == 0);
}
void iso14443a_crc_append(uint8_t *data, size_t len) {
return compute_crc(CRC_14443_A, data, len, data + len, data + len + 1);
}
void iso14443a_crc(uint8_t *data, size_t len, uint8_t *pbtCrc) {
return compute_crc(CRC_14443_A, data, len, pbtCrc, pbtCrc + 1);
}
bool iso14443a_crc_check(uint8_t *data, const size_t len, uint8_t *crc) {
uint8_t ccrc[2] = {0};
iso14443a_crc(data, len, ccrc);
return (memcmp(ccrc, crc, 2) == 0);
}

6
client/src/mifare/desfirecrypto.h
View file

@ -101,5 +101,11 @@ void DesfireCryptoEncDec(DesfireContext *ctx, bool use_session_key, uint8_t *src
void DesfireCryptoEncDecEx(DesfireContext *ctx, bool use_session_key, uint8_t *srcdata, size_t srcdatalen, uint8_t *dstdata, bool encode, uint8_t *iv);
void DesfireCryptoCMAC(DesfireContext *ctx, uint8_t *srcdata, size_t srcdatalen, uint8_t *cmac);
void desfire_crc32(const uint8_t *data, const size_t len, uint8_t *crc);
void desfire_crc32_append(uint8_t *data, const size_t len);
bool desfire_crc32_check(uint8_t *data, const size_t len, uint8_t *crc);
void iso14443a_crc_append(uint8_t *data, size_t len);
void iso14443a_crc(uint8_t *data, size_t len, uint8_t *pbtCrc);
bool iso14443a_crc_check(uint8_t *data, const size_t len, uint8_t *crc);
#endif // __DESFIRECRYPTO_H