// 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
+ 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
+\r
uint16_t len;\r
uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
OnError(1);\r
return;\r
}\r
-\r
+ \r
// tag nonce.\r
- memcpy(enc_b,receivedAnswer+1,8);\r
+ memcpy(enc_random_b,receivedAnswer+1,8);\r
\r
// decrypt nonce.\r
- tdes_2key_dec(b, enc_b, 8, key );\r
+ tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );\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
+ rol(random_b,8);\r
\r
- memcpy(ab ,a,8);\r
- memcpy(ab+8,b,8);\r
-\r
- Dbprintf("AB: %02x %02x %02x %02x %02x %02x %02x %02x", ab[0],ab[1],ab[2],ab[3],ab[4],ab[5],ab[6],ab[7] );\r
- Dbprintf("AB: %02x %02x %02x %02x %02x %02x %02x %02x", ab[8],ab[9],ab[10],ab[11],ab[12],ab[13],ab[14],ab[15] );\r
-\r
- // encrypt\r
- tdes_2key_enc(enc_ab, ab, 16, key);\r
-\r
- Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", enc_ab[0],enc_ab[1],enc_ab[2],enc_ab[3],enc_ab[4],enc_ab[5],enc_ab[6],enc_ab[7] );\r
- Dbprintf("e_enc_ab: %02x %02x %02x %02x %02x %02x %02x %02x", enc_ab[8],enc_ab[9],enc_ab[10],enc_ab[11],enc_ab[12],enc_ab[13],enc_ab[14],enc_ab[15] );\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],\r
+ 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],\r
+ 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],\r
+ 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],\r
+ 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
\r
- len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, enc_ab, receivedAnswer, receivedAnswerPar, NULL);\r
+ \r
+ len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, 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
- // the tags' encryption of our nonce, A.\r
- memcpy(enc_key, receivedAnswer+1, 8);\r
- \r
- // clear B.\r
- memset(b, 0x00, 8);\r
-\r
- // decrypt \r
- tdes_2key_dec(b, enc_key, 8, key );\r
- if ( memcmp(a, b, 8) == 0 )\r
- Dbprintf("Verified key");\r
- else\r
+ uint8_t enc_resp[8] = { 0 };\r
+ uint8_t resp_random_a[8] = { 0 };\r
+ memcpy(enc_resp, receivedAnswer+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
+ if ( memcmp(resp_random_a, random_a, 8) != 0 )\r
Dbprintf("failed authentication");\r
- \r
- Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x", a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[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
- }\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
+ }\r
+ \r
if( mifare_ultra_readblock(blockNo, dataout) ) {\r
if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");\r
OnError(2);\r
return;\r
}\r
-\r
+ \r
if( mifare_ultra_halt() ) {\r
if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");\r
OnError(3);\r
return;\r
}\r
- \r
- cmd_send(CMD_ACK,1,0,0,dataout,16);\r
+ \r
+ cmd_send(CMD_ACK,1,0,0,dataout,16);\r
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
LEDsoff();\r
}\r
+\r
//-----------------------------------------------------------------------------\r
// Select, Authenticate, Read a MIFARE tag. \r
// read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)\r
projects / proxmark3-svn / blobdiff