]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/mifarehost.c
corrected Eagle files
[proxmark3-svn] / client / mifarehost.c
index d025918d9130aac580d0b564e32082243cdfa526..4abb1137c41d0baf045f2d5e8fed9109cedb7873 100644 (file)
@@ -69,7 +69,7 @@ void* nested_worker_thread(void *arg)
 \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
@@ -77,31 +77,29 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo
        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
@@ -183,7 +181,7 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo
                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
@@ -195,11 +193,11 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo
        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
@@ -231,15 +229,31 @@ int mfEmlSetMem(uint8_t *data, int blockNum, int blocksCount) {
 \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
@@ -253,8 +267,10 @@ int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, bool wantWipe, uin
   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
@@ -286,9 +302,9 @@ int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params) {
 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
@@ -323,20 +339,25 @@ int isBlockTrailer(int blockN) {
 \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
@@ -368,22 +389,27 @@ int saveTraceCard(void) {
        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
@@ -593,3 +619,23 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
 \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
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