-//mifare nested\r
-#define MEM_CHUNK 10000\r
-#define TRY_KEYS 50\r
-#define NS_TOLERANCE 10 // [distance avg-value, distance avg+value]\r
-#define NS_RETRIES_GETNONCE 15\r
-#define NES_MAX_INFO 5\r
+//functions
+int mifare_sendcmd(uint8_t cmd, uint8_t *data, uint8_t data_size, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing);\r
+int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing);
+
+// mifare classic\r
+int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested);\r
+int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested, uint32_t * ntptr, uint32_t *timing);
+int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData);\r
+int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid); \r
+int mifare_classic_halt_ex(struct Crypto1State *pcs);\r
+int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData);\r