+void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)\r
+{\r
+ uint8_t blockNo = arg0;\r
+ byte_t dataout[16] = {0x00};\r
+ uint8_t uid[10] = {0x00};\r
+ uint8_t key[16] = {0x00};\r
+ bool usePwd = (arg1 == 1);\r
+ \r
+ LED_A_ON(); LED_B_OFF(); LED_C_OFF();\r
+ \r
+ clear_trace();\r
+ iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+ \r
+ int len = iso14443a_select_card(uid, NULL, NULL);\r
+ if(!len) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len);\r
+ OnError(1);\r
+ return;\r
+ }\r
+ \r
+ // authenticate here.\r
+ if ( usePwd ) {\r
+ \r
+ memcpy(key, datain, 16);\r
+ \r
+ // Dbprintf("KEY: %02x %02x %02x %02x %02x %02x %02x %02x", key[0],key[1],key[2],key[3],key[4],key[5],key[6],key[7] );\r
+ // Dbprintf("KEY: %02x %02x %02x %02x %02x %02x %02x %02x", key[8],key[9],key[10],key[11],key[12],key[13],key[14],key[15] );\r
+\r
+ uint8_t a[8] = {1,1,1,1,1,1,1,1 };\r
+ uint8_t b[8] = {0x00};\r
+ uint8_t enc_b[8] = {0x00};\r
+ uint8_t ab[16] = {0x00};\r
+ uint8_t enc_ab[16] = {0x00}; \r
+ uint8_t enc_key[8] = {0x00};\r
+ \r
+ uint16_t len;\r
+ uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
+ uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
+ \r
+ len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, receivedAnswer,receivedAnswerPar ,NULL);\r
+ if (len != 11) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
+ OnError(1);\r
+ return;\r
+ }\r
+ \r
+ // tag nonce.\r
+ memcpy(enc_b,receivedAnswer+1,8);\r
+\r
+ // decrypt nonce.\r
+ tdes_2key_dec(b, enc_b, 8, key );\r
+\r
+ Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x", enc_b[0],enc_b[1],enc_b[2],enc_b[3],enc_b[4],enc_b[5],enc_b[6],enc_b[7] );\r
+ Dbprintf(" B: %02x %02x %02x %02x %02x %02x %02x %02x", b[0],b[1],b[2],b[3],b[4],b[5],b[6],b[7] );\r
+ rol(b,8);\r
+ \r
+ memcpy(ab ,a,8);\r
+ memcpy(ab+8,b,8);\r