#include "mifarehost.h"\r
#include "proxmark3.h"\r
\r
+#define llx PRIx64\r
+\r
// MIFARE\r
int compar_int(const void * a, const void * b) {\r
// didn't work: (the result is truncated to 32 bits)\r
uint16_t i, len;\r
uint32_t uid;\r
UsbCommand resp;\r
- \r
StateList_t statelists[2];\r
struct Crypto1State *p1, *p2, *p3, *p4;\r
\r
\r
// "MAGIC" CARD\r
\r
-int mfCSetUID(uint8_t *uid, uint8_t *oldUID, bool wantWipe) {\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] = 0x08;\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
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
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] = {0x00};\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
struct Crypto1State *traceCrypto1 = NULL;\r
\r
-struct Crypto1State *revstate;\r
-uint64_t lfsr;\r
-uint32_t ks2;\r
-uint32_t ks3;\r
+struct Crypto1State *revstate = NULL;\r
\r
-uint32_t uid; // serial number\r
-uint32_t nt; // tag challenge\r
-uint32_t nr_enc; // encrypted reader challenge\r
-uint32_t ar_enc; // encrypted reader response\r
-uint32_t at_enc; // encrypted tag response\r
+uint64_t key = 0;\r
+uint32_t ks2 = 0;\r
+uint32_t ks3 = 0;\r
+\r
+uint32_t uid = 0; // serial number\r
+uint32_t nt =0; // tag challenge\r
+uint32_t nr_enc =0; // encrypted reader challenge\r
+uint32_t ar_enc =0; // encrypted reader response\r
+uint32_t at_enc =0; // encrypted tag response\r
\r
int isTraceCardEmpty(void) {\r
return ((traceCard[0] == 0) && (traceCard[1] == 0) && (traceCard[2] == 0) && (traceCard[3] == 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
+ PrintAndLog("File reading error.");\r
fclose(f);\r
return 2;\r
- }\r
+ }\r
\r
if (strlen(buf) < 32){\r
if (feof(f)) break;\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
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
+ crypto1_get_lfsr(revstate, &key);\r
+ printf("Key: %012"llx"\n",key);\r
+ AddLogUint64(logHexFileName, "key: ", key); \r
\r
int blockShift = ((traceCurBlock & 0xFC) + 3) * 16;\r
if (isBlockEmpty((traceCurBlock & 0xFC) + 3)) memcpy(traceCard + blockShift + 6, trailerAccessBytes, 4);\r
\r
if (traceCurKey) {\r
- num_to_bytes(lfsr, 6, traceCard + blockShift + 10);\r
+ num_to_bytes(key, 6, traceCard + blockShift + 10);\r
} else {\r
- num_to_bytes(lfsr, 6, traceCard + blockShift);\r
+ num_to_bytes(key, 6, traceCard + blockShift);\r
}\r
if (wantSaveToEmlFile) saveTraceCard();\r
\r
\r
// nt = crypto1_word(traceCrypto1, nt ^ uid, 1) ^ nt;\r
\r
- /* traceCrypto1 = crypto1_create(lfsr); // key in lfsr\r
+ /* traceCrypto1 = crypto1_create(key); // key in lfsr\r
crypto1_word(traceCrypto1, nt ^ uid, 0);\r
crypto1_word(traceCrypto1, ar, 1);\r
crypto1_word(traceCrypto1, 0, 0);\r
projects / proxmark3-svn / blobdiff