+// mifare ultralight commands\r
+int mifare_ul_ev1_auth(uint8_t *keybytes, uint8_t *pack){\r
+\r
+ uint16_t len;\r
+ uint8_t resp[4];\r
+ uint8_t respPar[1];\r
+ uint8_t key[4] = {0x00};\r
+ memcpy(key, keybytes, 4);\r
+\r
+ if (MF_DBGLEVEL >= MF_DBG_EXTENDED)\r
+ Dbprintf("EV1 Auth : %02x%02x%02x%02x", key[0], key[1], key[2], key[3]);\r
+ len = mifare_sendcmd(0x1B, key, sizeof(key), resp, respPar, NULL);\r
+ //len = mifare_sendcmd_short_mfuev1auth(NULL, 0, 0x1B, key, resp, respPar, NULL);\r
+ if (len != 4) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x %u", resp[0], len);\r
+ return 0;\r
+ }\r
+\r
+ if (MF_DBGLEVEL >= MF_DBG_EXTENDED)\r
+ Dbprintf("Auth Resp: %02x%02x%02x%02x", resp[0],resp[1],resp[2],resp[3]);\r
+\r
+ memcpy(pack, resp, 4);\r
+ return 1;\r
+}\r
+\r
+int mifare_ultra_auth(uint8_t *keybytes){\r
+\r
+ /// 3des2k\r
+\r
+ mbedtls_des3_context ctx = { {0} };\r
+ uint8_t random_a[8] = {1,1,1,1,1,1,1,1};\r
+ uint8_t random_b[8] = {0x00};\r
+ uint8_t enc_random_b[8] = {0x00};\r
+ uint8_t rnd_ab[16] = {0x00};\r
+ uint8_t IV[8] = {0x00};\r
+ uint8_t key[16] = {0x00};\r
+ memcpy(key, keybytes, 16);\r
+\r
+ uint16_t len;\r
+ uint8_t resp[19] = {0x00};\r
+ uint8_t respPar[3] = {0,0,0};\r
+\r
+ // REQUEST AUTHENTICATION\r
+ len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, resp, respPar ,NULL);\r
+ if (len != 11) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);\r
+ return 0;\r
+ }\r
+\r
+ // tag nonce.\r
+ memcpy(enc_random_b,resp+1,8);\r
+\r
+ // decrypt nonce.\r
+ // tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );\r
+ mbedtls_des3_set2key_dec(&ctx, key);\r
+ mbedtls_des3_crypt_cbc(&ctx // des3_context\r
+ , MBEDTLS_DES_DECRYPT // int mode\r
+ , sizeof(random_b) // length\r
+ , IV // iv[8]\r
+ , enc_random_b // input\r
+ , random_b // output\r
+ );\r
+\r
+ rol(random_b,8);\r
+ memcpy(rnd_ab ,random_a,8);\r
+ memcpy(rnd_ab+8,random_b,8);\r
+\r
+ if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
+ Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+ enc_random_b[0],enc_random_b[1],enc_random_b[2],enc_random_b[3],enc_random_b[4],enc_random_b[5],enc_random_b[6],enc_random_b[7]);\r
+\r
+ Dbprintf(" B: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+ random_b[0],random_b[1],random_b[2],random_b[3],random_b[4],random_b[5],random_b[6],random_b[7]);\r
+\r
+ Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+ rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);\r
+\r
+ Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+ rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15] );\r
+ }\r
+\r
+ // encrypt out, in, length, key, iv\r
+ //tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);\r
+ mbedtls_des3_set2key_enc(&ctx, key);\r
+ mbedtls_des3_crypt_cbc(&ctx // des3_context\r
+ , MBEDTLS_DES_ENCRYPT // int mode\r
+ , sizeof(rnd_ab) // length\r
+ , enc_random_b // iv[8]\r
+ , rnd_ab // input\r
+ , rnd_ab // output\r
+ );\r
+\r
+ //len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, resp, respPar, NULL);\r
+ len = mifare_sendcmd(0xAF, rnd_ab, sizeof(rnd_ab), resp, respPar, NULL);\r
+ if (len != 11) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);\r
+ return 0;\r
+ }\r
+\r
+ uint8_t enc_resp[8] = { 0,0,0,0,0,0,0,0 };\r
+ uint8_t resp_random_a[8] = { 0,0,0,0,0,0,0,0 };\r
+ memcpy(enc_resp, resp+1, 8);\r
+\r
+ // decrypt out, in, length, key, iv \r
+ // tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b);\r
+ mbedtls_des3_set2key_dec(&ctx, key);\r
+ mbedtls_des3_crypt_cbc(&ctx // des3_context\r
+ , MBEDTLS_DES_DECRYPT // int mode\r
+ , 8 // length\r
+ , enc_random_b // iv[8]\r
+ , enc_resp // input\r
+ , resp_random_a // output\r
+ );\r
+ if ( memcmp(resp_random_a, random_a, 8) != 0 ) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("failed authentication");\r
+ return 0;\r
+ }\r
+\r
+ if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
+ Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", \r
+ rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],\r
+ rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);\r
+\r
+ Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+ rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],\r
+ rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15]);\r
+\r
+ Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+ random_a[0],random_a[1],random_a[2],random_a[3],\r
+ random_a[4],random_a[5],random_a[6],random_a[7]);\r
+\r
+ Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+ resp_random_a[0],resp_random_a[1],resp_random_a[2],resp_random_a[3],\r
+ resp_random_a[4],resp_random_a[5],resp_random_a[6],resp_random_a[7]);\r
+ }\r
+ return 1;\r
+}\r
+\r
+\r
+#define MFU_MAX_RETRIES 5\r
+int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData)\r
+{\r
+ uint16_t len;\r
+ uint8_t bt[2];\r
+ uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
+ uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
+ uint8_t retries;\r
+ int result = 0;\r
+\r
+ for (retries = 0; retries < MFU_MAX_RETRIES; retries++) {\r
+ len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
+ if (len == 1) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
+ result = 1;\r
+ continue;\r
+ }\r
+ if (len != 18) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: card timeout. len: %x", len);\r
+ result = 2;\r
+ continue;\r
+ }\r
+\r
+ memcpy(bt, receivedAnswer + 16, 2);\r
+ AppendCrc14443a(receivedAnswer, 16);\r
+ if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {\r
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd CRC response error.");\r
+ result = 3;\r
+ continue;\r
+ }\r
+\r
+ // No errors encountered; don't retry\r
+ result = 0;\r
+ break;\r
+ }\r
+\r
+ if (result != 0) {\r
+ Dbprintf("Cmd Error: too many retries; read failed");\r
+ return result;\r
+ }\r
+\r
+ memcpy(blockData, receivedAnswer, 14);\r
+ return 0;\r
+}\r
+\r
projects / proxmark3-svn / blobdiff