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Namespace loclass library (#1379)

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* Namespace loclass library
* Lib: const for immutable variables and bss cleanup

Co-authored-by: あく <alleteam@gmail.com>
This commit is contained in:
Eric Betts
2022-07-08 05:56:23 -07:00
committed by GitHub
parent 6b3625f46b
commit f46ae5a704
9 changed files with 221 additions and 246 deletions
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16
lib/loclass/optimized_cipher.h
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@@ -52,18 +52,18 @@ typedef struct {
uint8_t r;
uint8_t b;
uint16_t t;
} State_t;
} LoclassState_t;
/** The reader MAC is MAC(key, CC * NR )
**/
void opt_doReaderMAC(uint8_t *cc_nr_p, uint8_t *div_key_p, uint8_t mac[4]);
void loclass_opt_doReaderMAC(uint8_t *cc_nr_p, uint8_t *div_key_p, uint8_t mac[4]);
void opt_doReaderMAC_2(State_t _init, uint8_t *nr, uint8_t mac[4], const uint8_t *div_key_p);
void loclass_opt_doReaderMAC_2(LoclassState_t _init, uint8_t *nr, uint8_t mac[4], const uint8_t *div_key_p);
/**
* The tag MAC is MAC(key, CC * NR * 32x0))
*/
void opt_doTagMAC(uint8_t *cc_p, const uint8_t *div_key_p, uint8_t mac[4]);
void loclass_opt_doTagMAC(uint8_t *cc_p, const uint8_t *div_key_p, uint8_t mac[4]);
/**
* The tag MAC can be divided (both can, but no point in dividing the reader mac) into
@@ -73,7 +73,7 @@ void opt_doTagMAC(uint8_t *cc_p, const uint8_t *div_key_p, uint8_t mac[4]);
* @param div_key_p
* @return the cipher state
*/
State_t opt_doTagMAC_1(uint8_t *cc_p, const uint8_t *div_key_p);
LoclassState_t loclass_opt_doTagMAC_1(uint8_t *cc_p, const uint8_t *div_key_p);
/**
* The second part of the tag MAC calculation, since the CC is already calculated into the state,
* this function is fed only the NR, and internally feeds the remaining 32 0-bits to generate the tag
@@ -83,8 +83,8 @@ State_t opt_doTagMAC_1(uint8_t *cc_p, const uint8_t *div_key_p);
* @param mac - where to store the MAC
* @param div_key_p - the key to use
*/
void opt_doTagMAC_2(State_t _init, uint8_t *nr, uint8_t mac[4], const uint8_t *div_key_p);
void loclass_opt_doTagMAC_2(LoclassState_t _init, uint8_t *nr, uint8_t mac[4], const uint8_t *div_key_p);
void doMAC_N(uint8_t *in_p, uint8_t in_size, uint8_t *div_key_p, uint8_t mac[4]);
void iclass_calc_div_key(uint8_t *csn, uint8_t *key, uint8_t *div_key, bool elite);
void loclass_doMAC_N(uint8_t *in_p, uint8_t in_size, uint8_t *div_key_p, uint8_t mac[4]);
void loclass_iclass_calc_div_key(uint8_t *csn, uint8_t *key, uint8_t *div_key, bool elite);
#endif // OPTIMIZED_CIPHER_H