+\r
+int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {\r
+ uint8_t* emCARD = BigBuf_get_EM_addr();\r
+ uint8_t* data = emCARD + blockNum * 16;\r
+\r
+ memcpy(data + 0, &blReg, 4);\r
+ memcpy(data + 8, &blReg, 4);\r
+ blReg = blReg ^ 0xffffffff;\r
+ memcpy(data + 4, &blReg, 4);\r
+\r
+ data[12] = blBlock;\r
+ data[13] = blBlock ^ 0xff;\r
+ data[14] = blBlock;\r
+ data[15] = blBlock ^ 0xff;\r
+\r
+ return 0;\r
+}\r
+\r
+uint64_t emlGetKey(int sectorNum, int keyType) {\r
+ uint8_t key[6];\r
+ uint8_t* emCARD = BigBuf_get_EM_addr();\r
+\r
+ memcpy(key, emCARD + 16 * (FirstBlockOfSector(sectorNum) + NumBlocksPerSector(sectorNum) - 1) + keyType * 10, 6);\r
+ return bytes_to_num(key, 6);\r
+}\r
+\r
+void emlClearMem(void) {\r
+ int b;\r
+\r
+ const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};\r
+ const uint8_t uid[] = {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};\r
+ uint8_t* emCARD = BigBuf_get_EM_addr();\r
+\r
+ memset(emCARD, 0, CARD_MEMORY_SIZE);\r
+\r
+ // fill sectors trailer data\r
+ for(b = 3; b < 256; b<127?(b+=4):(b+=16)) {\r
+ emlSetMem((uint8_t *)trailer, b , 1);\r
+ }\r
+\r
+ // uid\r
+ emlSetMem((uint8_t *)uid, 0, 1);\r
+ return;\r
+}\r
+\r
+\r
+// Mifare desfire commands\r
+int mifare_sendcmd_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)\r
+{\r
+ uint8_t dcmd[5] = {0x00};\r
+ dcmd[0] = cmd;\r
+ memcpy(dcmd+1,data,2);\r
+ AppendCrc14443a(dcmd, 3);\r
+\r
+ ReaderTransmit(dcmd, sizeof(dcmd), NULL);\r
+ int len = ReaderReceive(answer, answer_parity);\r
+ if(!len) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+ Dbprintf("Authentication failed. Card timeout.");\r
+ return 1;\r
+ }\r
+ return len;\r
+}\r
+\r
+int mifare_sendcmd_special2(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer,uint8_t *answer_parity, uint32_t *timing)\r
+{\r
+ uint8_t dcmd[20] = {0x00};\r
+ dcmd[0] = cmd;\r
+ memcpy(dcmd+1,data,17);\r
+ AppendCrc14443a(dcmd, 18);\r
+\r
+ ReaderTransmit(dcmd, sizeof(dcmd), NULL);\r
+ int len = ReaderReceive(answer, answer_parity);\r
+ if(!len){\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+ Dbprintf("Authentication failed. Card timeout.");\r
+ return 1;\r
+ }\r
+ return len;\r
+}\r
+\r
+int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData){\r
+\r
+ int len;\r
+ // load key, keynumber\r
+ uint8_t data[2]={0x0a, 0x00};\r
+ uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
+ uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
+\r
+ len = mifare_sendcmd_special(NULL, 1, 0x02, data, receivedAnswer,receivedAnswerPar,NULL);\r
+ if (len == 1) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+ Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
+ return 1;\r
+ }\r
+\r
+ if (len == 12) {\r
+ if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
+ Dbprintf("Auth1 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
+ receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
+ receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
+ receivedAnswer[10],receivedAnswer[11]);\r
+ }\r
+ memcpy(blockData, receivedAnswer, 12);\r
+ return 0;\r
+ }\r
+ return 1;\r
+}\r
+\r
+int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){\r
+\r
+ int len;\r
+ uint8_t data[17] = {0x00};\r
+ data[0] = 0xAF;\r
+ memcpy(data+1,key,16);\r
+\r
+ uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+ uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
+\r
+ len = mifare_sendcmd_special2(NULL, 1, 0x03, data, receivedAnswer, receivedAnswerPar ,NULL);\r
+\r
+ if ((receivedAnswer[0] == 0x03) && (receivedAnswer[1] == 0xae)) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+ Dbprintf("Auth Error: %02x %02x", receivedAnswer[0], receivedAnswer[1]);\r
+ return 1;\r
+ }\r
+\r
+ if (len == 12){\r
+ if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
+ Dbprintf("Auth2 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
+ receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
+ receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
+ receivedAnswer[10],receivedAnswer[11]);\r
+ }\r
+ memcpy(blockData, receivedAnswer, 12);\r
+ return 0;\r
+ }\r
+ return 1;\r
+}\r
+\r
+//-----------------------------------------------------------------------------\r
+// MIFARE check keys\r
+//\r
+//-----------------------------------------------------------------------------\r
+// one key check\r
+static int MifareChkBlockKey(uint8_t *uid, uint32_t *cuid, uint8_t *cascade_levels, uint8_t *key, uint8_t blockNo, uint8_t keyType, uint32_t *auth_timeout, uint8_t debugLevel, bool fixed_nonce) {\r
+\r
+ struct Crypto1State mpcs = {0, 0};\r
+ struct Crypto1State *pcs;\r
+ pcs = &mpcs;\r
+\r
+ if (*cascade_levels == 0) { // 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, true)) {\r
+ if (debugLevel >= 1) Dbprintf("ChkKeys: Can't select card");\r
+ return -1;\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
+ } else { // no need for anticollision. We can directly select the card\r
+ if (!iso14443a_select_card(uid, NULL, NULL, false, *cascade_levels, true)) {\r
+ if (debugLevel >= 1) Dbprintf("ChkKeys: Can't select card (UID) lvl=%d", *cascade_levels);\r
+ return -1;\r
+ }\r
+ }\r
+\r
+ if (!fixed_nonce) {\r
+ uint64_t ui64Key = bytes_to_num(key, 6);\r
+ if (mifare_classic_auth(pcs, *cuid, blockNo, keyType, ui64Key, AUTH_FIRST, auth_timeout)) { // authentication failed\r
+ return -2;\r
+ } else {\r
+ mifare_classic_halt(pcs, *cuid);\r
+ }\r
+ } else {\r
+ uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+ uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
+ // Transmit MIFARE_CLASSIC_AUTH\r
+ int len = mifare_sendcmd_short(pcs, false, keyType & 0x01 ? MIFARE_AUTH_KEYB : MIFARE_AUTH_KEYA, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
+ if (len != 4) return -2;\r
+ // Transmit encrypted reader nonce and reader answer\r
+ uint8_t mf_nr_ar[8] = NESTED_FIXED_NR_ENC;\r
+ memcpy(mf_nr_ar + 4, key, 4);\r
+ ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), key + 4, NULL);\r
+ uint32_t save_timeout = iso14a_get_timeout(); // save standard timeout\r
+ iso14a_set_timeout(*auth_timeout); // set timeout for authentication response\r
+ len = ReaderReceive(receivedAnswer, receivedAnswerPar);\r
+ iso14a_set_timeout(save_timeout); // restore standard timeout\r
+ if (!len) return -2;\r
+ }\r
+\r
+ return 0; // success\r
+}\r
+\r
+// multi key check\r
+static int MifareChkBlockKeysEx(uint8_t *keys, uint8_t keyCount, uint8_t blockNo, uint8_t keyType, uint32_t *auth_timeout, uint8_t debugLevel, bool fixed_nonce) {\r
+\r
+ uint8_t uid[10];\r
+ uint32_t cuid = 0;\r
+ uint8_t cascade_levels = 0;\r
+\r
+ int retryCount = 0;\r
+ for (uint8_t i = 0; i < keyCount; i++) {\r
+ uint8_t bytes_per_key = fixed_nonce ? 5 : 6;\r
+ int res = MifareChkBlockKey(uid, &cuid, &cascade_levels, keys + i*bytes_per_key, blockNo, keyType, auth_timeout, debugLevel, fixed_nonce);\r
+ if (res == -1) { // couldn't select\r
+ retryCount++;\r
+ if (retryCount >= 5) {\r
+ Dbprintf("ChkKeys: block=%d key=%d. Couldn't select. Exit...", blockNo, keyType);\r
+ return -1;\r
+ } else {\r
+ --i; // try the same key once again\r
+ SpinDelay(20);\r
+ // Dbprintf("ChkKeys: block=%d key=%d. Try the same key once again...", blockNo, keyType);\r
+ continue;\r
+ }\r
+ }\r
+ if (res == -2) { // couldn't authenticate with this key\r
+ retryCount = 0;\r
+ continue;\r
+ }\r
+\r
+ return i + 1; // successful authentication\r
+\r
+ }\r
+\r
+ if (BUTTON_PRESS()) {\r
+ return -2;\r
+ }\r
+\r
+ return 0; // couldn't authenticate with any key\r
+}\r
+\r
+\r
+int MifareChkBlockKeys(uint8_t *keys, uint8_t keyCount, uint8_t blockNo, uint8_t keyType, uint32_t *auth_timeout, uint8_t debugLevel) {\r
+ return MifareChkBlockKeysEx(keys, keyCount, blockNo, keyType, auth_timeout, debugLevel, false);\r
+}\r
+\r
+\r
+// fixed nonce check\r
+int MifareChkBlockKeysFixedNonce(uint8_t *ar_par, uint8_t ar_par_cnt, uint8_t blockNo, uint8_t keyType, uint32_t *auth_timeout, uint8_t debugLevel) {\r
+ return MifareChkBlockKeysEx(ar_par, ar_par_cnt, blockNo, keyType, auth_timeout, debugLevel, true);\r
+}\r
+\r
+\r
+// multisector multikey check\r
+int MifareMultisectorChk(uint8_t *keys, uint8_t keyCount, uint8_t SectorCount, uint8_t keyType, uint32_t *auth_timeout, uint8_t debugLevel, TKeyIndex *keyIndex) {\r
+ int res = 0;\r
+\r
+// int clk = GetCountSspClk();\r
+\r
+ for(int sc = 0; sc < SectorCount; sc++){\r
+ WDT_HIT();\r
+\r
+ int keyAB = keyType;\r
+ do {\r
+ res = MifareChkBlockKeys(keys, keyCount, FirstBlockOfSector(sc), keyAB & 0x01, auth_timeout, debugLevel);\r
+ if (res < 0) {\r
+ return res;\r
+ }\r
+ if (res > 0) {\r
+ (*keyIndex)[keyAB & 0x01][sc] = res;\r
+ }\r
+ } while(--keyAB > 0);\r
+ }\r
+\r
+// Dbprintf("%d %d", GetCountSspClk() - clk, (GetCountSspClk() - clk)/(SectorCount*keyCount*(keyType==2?2:1)));\r
+\r
+ return 1;\r
+}\r
+\r
+\r
projects / proxmark3-svn / blobdiff