else return -1;\r
}\r
\r
-\r
-\r
// Compare 16 Bits out of cryptostate\r
int Compare16Bits(const void * a, const void * b) {\r
if ((*(uint64_t*)b & 0x00ff000000ff0000) == (*(uint64_t*)a & 0x00ff000000ff0000)) return 0;\r
else return -1;\r
}\r
\r
-\r
typedef \r
struct {\r
union {\r
return statelist->head.slhead;\r
}\r
\r
-\r
-\r
-\r
int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo, uint8_t trgKeyType, uint8_t * resultKey, bool calibrate) \r
{\r
- uint16_t i, len;\r
+ uint16_t i;\r
uint32_t uid;\r
UsbCommand resp;\r
\r
- \r
StateList_t statelists[2];\r
struct Crypto1State *p1, *p2, *p3, *p4;\r
\r
// flush queue\r
- WaitForResponseTimeout(CMD_ACK,NULL,100);\r
+ WaitForResponseTimeout(CMD_ACK, NULL, 100);\r
\r
UsbCommand c = {CMD_MIFARE_NESTED, {blockNo + keyType * 0x100, trgBlockNo + trgKeyType * 0x100, calibrate}};\r
memcpy(c.d.asBytes, key, 6);\r
SendCommand(&c);\r
\r
- if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {\r
- len = resp.arg[1];\r
- if (len == 2) { \r
- memcpy(&uid, resp.d.asBytes, 4);\r
- PrintAndLog("uid:%08x len=%d trgbl=%d trgkey=%x", uid, len, (uint16_t)resp.arg[2] & 0xff, (uint16_t)resp.arg[2] >> 8);\r
- \r
- for (i = 0; i < 2; i++) {\r
- statelists[i].blockNo = resp.arg[2] & 0xff;\r
- statelists[i].keyType = (resp.arg[2] >> 8) & 0xff;\r
- statelists[i].uid = uid;\r
+ if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {\r
+ return -1;\r
+ }\r
\r
- memcpy(&statelists[i].nt, (void *)(resp.d.asBytes + 4 + i * 8 + 0), 4);\r
- memcpy(&statelists[i].ks1, (void *)(resp.d.asBytes + 4 + i * 8 + 4), 4);\r
- }\r
- }\r
- else {\r
- PrintAndLog("Got 0 keys from proxmark."); \r
- return 1;\r
- }\r
+ if (resp.arg[0]) {\r
+ return resp.arg[0]; // error during nested\r
+ }\r
+ \r
+ memcpy(&uid, resp.d.asBytes, 4);\r
+ PrintAndLog("uid:%08x trgbl=%d trgkey=%x", uid, (uint16_t)resp.arg[2] & 0xff, (uint16_t)resp.arg[2] >> 8);\r
+ \r
+ for (i = 0; i < 2; i++) {\r
+ statelists[i].blockNo = resp.arg[2] & 0xff;\r
+ statelists[i].keyType = (resp.arg[2] >> 8) & 0xff;\r
+ statelists[i].uid = uid;\r
+ memcpy(&statelists[i].nt, (void *)(resp.d.asBytes + 4 + i * 8 + 0), 4);\r
+ memcpy(&statelists[i].ks1, (void *)(resp.d.asBytes + 4 + i * 8 + 4), 4);\r
}\r
\r
// calc keys\r
crypto1_get_lfsr(statelists[0].head.slhead + i, &key64);\r
num_to_bytes(key64, 6, keyBlock);\r
key64 = 0;\r
- if (!mfCheckKeys(statelists[0].blockNo, statelists[0].keyType, 1, keyBlock, &key64)) {\r
+ if (!mfCheckKeys(statelists[0].blockNo, statelists[0].keyType, false, 1, keyBlock, &key64)) {\r
num_to_bytes(key64, 6, resultKey);\r
break;\r
}\r
return 0;\r
}\r
\r
-int mfCheckKeys (uint8_t blockNo, uint8_t keyType, uint8_t keycnt, uint8_t * keyBlock, uint64_t * key){\r
+int mfCheckKeys (uint8_t blockNo, uint8_t keyType, bool clear_trace, uint8_t keycnt, uint8_t * keyBlock, uint64_t * key){\r
\r
*key = 0;\r
\r
- UsbCommand c = {CMD_MIFARE_CHKKEYS, {blockNo, keyType, keycnt}};\r
+ UsbCommand c = {CMD_MIFARE_CHKKEYS, {((blockNo & 0xff) | ((keyType&0xff)<<8)), clear_trace, keycnt}};\r
memcpy(c.d.asBytes, keyBlock, 6 * keycnt);\r
SendCommand(&c);\r
\r
\r
// "MAGIC" CARD\r
\r
-int mfCSetUID(uint8_t *uid, uint8_t *oldUID, bool wantWipe) {\r
- uint8_t block0[16];\r
- memset(block0, 0, 16);\r
+int mfCSetUID(uint8_t *uid, uint8_t *atqa, uint8_t *sak, uint8_t *oldUID, bool wantWipe) {\r
+ uint8_t oldblock0[16] = {0x00};\r
+ uint8_t block0[16] = {0x00};\r
+\r
+ int old = mfCGetBlock(0, oldblock0, CSETBLOCK_SINGLE_OPER);\r
+ if (old == 0) {\r
+ memcpy(block0, oldblock0, 16);\r
+ PrintAndLog("old block 0: %s", sprint_hex(block0,16));\r
+ } else {\r
+ PrintAndLog("Couldn't get old data. Will write over the last bytes of Block 0.");\r
+ }\r
+\r
+ // fill in the new values\r
+ // UID\r
memcpy(block0, uid, 4); \r
- block0[4] = block0[0]^block0[1]^block0[2]^block0[3]; // Mifare UID BCC\r
- // mifare classic SAK(byte 5) and ATQA(byte 6 and 7)\r
- block0[5] = 0x88;\r
- block0[6] = 0x04;\r
- block0[7] = 0x00;\r
- \r
+ // Mifare UID BCC\r
+ block0[4] = block0[0]^block0[1]^block0[2]^block0[3];\r
+ // mifare classic SAK(byte 5) and ATQA(byte 6 and 7, reversed)\r
+ if (sak!=NULL)\r
+ block0[5]=sak[0];\r
+ if (atqa!=NULL) {\r
+ block0[6]=atqa[1];\r
+ block0[7]=atqa[0];\r
+ }\r
+ PrintAndLog("new block 0: %s", sprint_hex(block0,16));\r
return mfCSetBlock(0, block0, oldUID, wantWipe, CSETBLOCK_SINGLE_OPER);\r
}\r
\r
int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, bool wantWipe, uint8_t params) {\r
- uint8_t isOK = 0;\r
\r
- UsbCommand c = {CMD_MIFARE_EML_CSETBLOCK, {wantWipe, params & (0xFE | (uid == NULL ? 0:1)), blockNo}};\r
+ uint8_t isOK = 0;\r
+ UsbCommand c = {CMD_MIFARE_CSETBLOCK, {wantWipe, params & (0xFE | (uid == NULL ? 0:1)), blockNo}};\r
memcpy(c.d.asBytes, data, 16); \r
SendCommand(&c);\r
\r
UsbCommand resp;\r
if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {\r
isOK = resp.arg[0] & 0xff;\r
- if (uid != NULL) memcpy(uid, resp.d.asBytes, 4);\r
- if (!isOK) return 2;\r
+ if (uid != NULL) \r
+ memcpy(uid, resp.d.asBytes, 4);\r
+ if (!isOK) \r
+ return 2;\r
} else {\r
PrintAndLog("Command execute timeout");\r
return 1;\r
int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params) {\r
uint8_t isOK = 0;\r
\r
- UsbCommand c = {CMD_MIFARE_EML_CGETBLOCK, {params, 0, blockNo}};\r
+ UsbCommand c = {CMD_MIFARE_CGETBLOCK, {params, 0, blockNo}};\r
SendCommand(&c);\r
\r
UsbCommand resp;\r
static uint8_t trailerAccessBytes[4] = {0x08, 0x77, 0x8F, 0x00};\r
\r
// variables\r
-char logHexFileName[200] = {0x00};\r
+char logHexFileName[FILE_PATH_SIZE] = {0x00};\r
static uint8_t traceCard[4096] = {0x00};\r
-static char traceFileName[200] = {0};\r
+static char traceFileName[FILE_PATH_SIZE] = {0x00};\r
static int traceState = TRACE_IDLE;\r
static uint8_t traceCurBlock = 0;\r
static uint8_t traceCurKey = 0;\r
\r
int loadTraceCard(uint8_t *tuid) {\r
FILE * f;\r
- char buf[64];\r
- uint8_t buf8[64];\r
+ char buf[64] = {0x00};\r
+ uint8_t buf8[64] = {0x00};\r
int i, blockNum;\r
\r
- if (!isTraceCardEmpty()) saveTraceCard();\r
+ if (!isTraceCardEmpty()) \r
+ saveTraceCard();\r
+ \r
memset(traceCard, 0x00, 4096);\r
memcpy(traceCard, tuid + 3, 4);\r
+\r
FillFileNameByUID(traceFileName, tuid, ".eml", 7);\r
\r
f = fopen(traceFileName, "r");\r
if (!f) return 1;\r
\r
blockNum = 0;\r
+ \r
while(!feof(f)){\r
+ \r
memset(buf, 0, sizeof(buf));\r
if (fgets(buf, sizeof(buf), f) == NULL) {\r
PrintAndLog("File reading error.");\r
if ((!strlen(traceFileName)) || (isTraceCardEmpty())) return 0;\r
\r
f = fopen(traceFileName, "w+");\r
+ if ( !f ) return 1;\r
+ \r
for (int i = 0; i < 64; i++) { // blocks\r
for (int j = 0; j < 16; j++) // bytes\r
fprintf(f, "%02x", *(traceCard + i * 16 + j)); \r
fprintf(f,"\n");\r
}\r
fclose(f);\r
-\r
return 0;\r
}\r
\r
int mfTraceInit(uint8_t *tuid, uint8_t *atqa, uint8_t sak, bool wantSaveToEmlFile) {\r
\r
- if (traceCrypto1) crypto1_destroy(traceCrypto1);\r
+ if (traceCrypto1) \r
+ crypto1_destroy(traceCrypto1);\r
+\r
traceCrypto1 = NULL;\r
\r
- if (wantSaveToEmlFile) loadTraceCard(tuid);\r
+ if (wantSaveToEmlFile) \r
+ loadTraceCard(tuid);\r
+ \r
traceCard[4] = traceCard[0] ^ traceCard[1] ^ traceCard[2] ^ traceCard[3];\r
traceCard[5] = sak;\r
memcpy(&traceCard[6], atqa, 2);\r
case TRACE_AUTH1: \r
if (len == 4) {\r
traceState = TRACE_AUTH2;\r
-\r
nt = bytes_to_num(data, 4);\r
return 0;\r
} else {\r
lfsr_rollback_word(revstate, 0, 0);\r
lfsr_rollback_word(revstate, nr_enc, 1);\r
lfsr_rollback_word(revstate, uid ^ nt, 0);\r
+\r
crypto1_get_lfsr(revstate, &lfsr);\r
printf("key> %x%x\n", (unsigned int)((lfsr & 0xFFFFFFFF00000000) >> 32), (unsigned int)(lfsr & 0xFFFFFFFF));\r
AddLogUint64(logHexFileName, "key> ", lfsr); \r
\r
return 0;\r
}\r
+\r
+int tryDecryptWord(uint32_t nt, uint32_t ar_enc, uint32_t at_enc, uint8_t *data, int len){\r
+ /*\r
+ uint32_t nt; // tag challenge\r
+ uint32_t ar_enc; // encrypted reader response\r
+ uint32_t at_enc; // encrypted tag response\r
+ */\r
+ if (traceCrypto1) {\r
+ crypto1_destroy(traceCrypto1);\r
+ }\r
+ ks2 = ar_enc ^ prng_successor(nt, 64);\r
+ ks3 = at_enc ^ prng_successor(nt, 96);\r
+ traceCrypto1 = lfsr_recovery64(ks2, ks3);\r
+\r
+ mf_crypto1_decrypt(traceCrypto1, data, len, 0);\r
+\r
+ PrintAndLog("Decrypted data: [%s]", sprint_hex(data,len) );\r
+ crypto1_destroy(traceCrypto1);\r
+ return 0;\r
+}\r
projects / proxmark3-svn / blobdiff