-int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo, uint8_t trgKeyType, uint8_t * ResultKeys);\r
-int mfCheckKeys (uint8_t blockNo, uint8_t keyType, uint8_t keycnt, uint8_t * keyBlock, uint64_t * key);\r
-int mfEmlGetMem(uint8_t *data, int blockNum, int blocksCount);\r
-int mfEmlSetMem(uint8_t *data, int blockNum, int blocksCount);\r
-int mfCSetUID(uint8_t *uid, uint8_t *oldUID, int wantWipe);\r
-int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, int wantWipe, uint8_t params);\r
-int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params);\r
-int mfTraceInit(uint8_t *tuid, uint8_t *atqa, uint8_t sak);\r
-int mfTraceDecode(uint8_t *data_src, int len);\r
+extern int isTraceCardEmpty(void);\r
+extern int isBlockEmpty(int blockN);\r
+extern int isBlockTrailer(int blockN);\r
+extern int loadTraceCard(uint8_t *tuid);\r
+extern int saveTraceCard(void);\r
+extern int tryDecryptWord(uint32_t nt, uint32_t ar_enc, uint32_t at_enc, uint8_t *data, int len);\r