+void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags, uint8_t *datain)\r
+{\r
+ uint64_t ui64Key = 0;\r
+ uint8_t uid[10] = {0x00};\r
+ uint32_t cuid = 0;\r
+ uint8_t cascade_levels = 0;\r
+ struct Crypto1State mpcs = {0, 0};\r
+ struct Crypto1State *pcs;\r
+ pcs = &mpcs;\r
+ uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
+ int16_t isOK = 0;\r
+ uint8_t par_enc[1] = {0x00};\r
+ uint8_t nt_par_enc = 0;\r
+ uint8_t buf[USB_CMD_DATA_SIZE] = {0x00};\r
+ uint32_t timeout = 0;\r
+ \r
+ uint8_t blockNo = arg0 & 0xff;\r
+ uint8_t keyType = (arg0 >> 8) & 0xff;\r
+ uint8_t targetBlockNo = arg1 & 0xff;\r
+ uint8_t targetKeyType = (arg1 >> 8) & 0xff;\r
+ ui64Key = bytes_to_num(datain, 6);\r
+ bool initialize = flags & 0x0001;\r
+ bool slow = flags & 0x0002;\r
+ bool field_off = flags & 0x0004;\r
+ \r
+ LED_A_ON();\r
+ LED_C_OFF();\r
+\r
+ BigBuf_free(); BigBuf_Clear_ext(false); \r
+ clear_trace();\r
+ set_tracing(FALSE);\r
+ \r
+ if (initialize) {\r
+ iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+ }\r
+ \r
+ LED_C_ON();\r
+ \r
+ uint8_t dummy_answer = 0; \r
+ uint16_t num_nonces = 0;\r
+ bool have_uid = false;\r
+ for (uint16_t i = 0; i <= USB_CMD_DATA_SIZE - 9; ) {\r
+\r
+ // Test if the action was cancelled\r
+ if(BUTTON_PRESS()) {\r
+ isOK = 2;\r
+ field_off = true;\r
+ break;\r
+ }\r
+\r
+ if (!have_uid) { // need a full select cycle to get the uid first\r
+ iso14a_card_select_t card_info; \r
+ if(!iso14443a_select_card(uid, &card_info, &cuid, true, 0)) {\r
+ if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Can't select card (ALL)");\r
+ continue;\r
+ }\r
+ switch (card_info.uidlen) {\r
+ case 4 : cascade_levels = 1; break;\r
+ case 7 : cascade_levels = 2; break;\r
+ case 10: cascade_levels = 3; break;\r
+ default: break;\r
+ }\r
+ have_uid = true; \r
+ } else { // no need for anticollision. We can directly select the card\r
+ if(!iso14443a_select_card(uid, NULL, NULL, false, cascade_levels)) {\r
+ if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Can't select card (UID)");\r
+ continue;\r
+ }\r
+ }\r
+ \r
+ if (slow) {\r
+ timeout = GetCountSspClk() + PRE_AUTHENTICATION_LEADTIME;\r
+ while(GetCountSspClk() < timeout);\r
+ }\r