Update README.md

[proxmark3-svn] / client / mifarehost.c

diff --git a/client/mifarehost.c b/client/mifarehost.c
index 6716f7eb6077f0488a5a4274fed4954c52e804b6..1939b92bdca16ca1c8e76a0deca7cd6da57b8454 100644 (file)
--- a/client/mifarehost.c
+++ b/client/mifarehost.c
@@ -14,6 +14,8 @@
 #include <pthread.h>\r
 #include "mifarehost.h"\r
 #include "proxmark3.h"\r
 #include <pthread.h>\r
 #include "mifarehost.h"\r
 #include "proxmark3.h"\r

+//#include "radixsort.h"\r
+#include <time.h>\r

 \r
 // MIFARE\r
 int compar_int(const void * a, const void * b) {\r
 \r
 // MIFARE\r
 int compar_int(const void * a, const void * b) {\r


@@ -21,16 +23,25 @@ int compar_int(const void * a, const void * b) {
        //return (*(uint64_t*)b - *(uint64_t*)a);\r
 \r
        // better:\r
        //return (*(uint64_t*)b - *(uint64_t*)a);\r
 \r
        // better:\r

-       if (*(uint64_t*)b == *(uint64_t*)a) return 0;\r
-       else if (*(uint64_t*)b > *(uint64_t*)a) return 1;\r
-       else return -1;\r
+       if (*(uint64_t*)b > *(uint64_t*)a) return 1;\r
+       if (*(uint64_t*)b < *(uint64_t*)a) return -1;   \r
+       return 0;\r
+\r
+       //return (*(uint64_t*)b > *(uint64_t*)a) - (*(uint64_t*)b < *(uint64_t*)a);\r

 }\r
 \r
 // Compare 16 Bits out of cryptostate\r
 int Compare16Bits(const void * a, const void * b) {\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 if ((*(uint64_t*)b & 0x00ff000000ff0000) > (*(uint64_t*)a & 0x00ff000000ff0000)) return 1;\r
-       else return -1;\r
+        if ((*(uint64_t*)b & 0x00ff000000ff0000) > (*(uint64_t*)a & 0x00ff000000ff0000)) return 1;     \r
+        if ((*(uint64_t*)b & 0x00ff000000ff0000) < (*(uint64_t*)a & 0x00ff000000ff0000)) return -1;\r
+        return 0;\r
+\r
+/*     return \r
+               ((*(uint64_t*)b & 0x00ff000000ff0000) > (*(uint64_t*)a & 0x00ff000000ff0000))\r
+               -\r
+               ((*(uint64_t*)b & 0x00ff000000ff0000) < (*(uint64_t*)a & 0x00ff000000ff0000))\r
+               ;\r
+*/\r

 }\r
 \r
 typedef \r
 }\r
 \r
 typedef \r


@@ -57,74 +68,63 @@ void* nested_worker_thread(void *arg)
 {\r
        struct Crypto1State *p1;\r
        StateList_t *statelist = arg;\r
 {\r
        struct Crypto1State *p1;\r
        StateList_t *statelist = arg;\r

-\r
-       statelist->head.slhead = lfsr_recovery32(statelist->ks1, statelist->nt ^ statelist->uid);\r
+       statelist->head.slhead = lfsr_recovery32(statelist->ks1, statelist->nt ^ statelist->uid);       \r
+       \r

        for (p1 = statelist->head.slhead; *(uint64_t *)p1 != 0; p1++);\r
        for (p1 = statelist->head.slhead; *(uint64_t *)p1 != 0; p1++);\r

+       \r

        statelist->len = p1 - statelist->head.slhead;\r
        statelist->tail.sltail = --p1;\r
        qsort(statelist->head.slhead, statelist->len, sizeof(uint64_t), Compare16Bits);\r
        statelist->len = p1 - statelist->head.slhead;\r
        statelist->tail.sltail = --p1;\r
        qsort(statelist->head.slhead, statelist->len, sizeof(uint64_t), Compare16Bits);\r

-       \r

        return statelist->head.slhead;\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
        return statelist->head.slhead;\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
        StateList_t statelists[2];\r
        struct Crypto1State *p1, *p2, *p3, *p4;\r
        \r
        uint32_t uid;\r
        UsbCommand resp;\r
        StateList_t statelists[2];\r
        struct Crypto1State *p1, *p2, *p3, *p4;\r
        \r

-       // flush queue\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
        UsbCommand c = {CMD_MIFARE_NESTED, {blockNo + keyType * 0x100, trgBlockNo + trgKeyType * 0x100, calibrate}};\r
        memcpy(c.d.asBytes, key, 6);\r

+       clearCommandBuffer();\r

        SendCommand(&c);\r
        SendCommand(&c);\r

+       if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)) return -1;\r

 \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
-\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
-       }\r
+       // error during nested\r
+       if (resp.arg[0]) return resp.arg[0];\r

        \r
        \r

-       // calc keys\r
+       memcpy(&uid, resp.d.asBytes, 4);\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
        \r

+       // calc keys    \r

        pthread_t thread_id[2];\r
                \r
        // create and run worker threads\r
        pthread_t thread_id[2];\r
                \r
        // create and run worker threads\r

-       for (i = 0; i < 2; i++) {\r
+       for (i = 0; i < 2; i++)\r

                pthread_create(thread_id + i, NULL, nested_worker_thread, &statelists[i]);\r
                pthread_create(thread_id + i, NULL, nested_worker_thread, &statelists[i]);\r

-       }\r
-       \r
+\r

        // wait for threads to terminate:\r
        // wait for threads to terminate:\r

-       for (i = 0; i < 2; i++) {\r
+       for (i = 0; i < 2; i++)\r

                pthread_join(thread_id[i], (void*)&statelists[i].head.slhead);\r
                pthread_join(thread_id[i], (void*)&statelists[i].head.slhead);\r

-       }\r
-\r

 \r
        // the first 16 Bits of the cryptostate already contain part of our key.\r
        // Create the intersection of the two lists based on these 16 Bits and\r
        // roll back the cryptostate\r
        p1 = p3 = statelists[0].head.slhead; \r
        p2 = p4 = statelists[1].head.slhead;\r
 \r
        // the first 16 Bits of the cryptostate already contain part of our key.\r
        // Create the intersection of the two lists based on these 16 Bits and\r
        // roll back the cryptostate\r
        p1 = p3 = statelists[0].head.slhead; \r
        p2 = p4 = statelists[1].head.slhead;\r

+\r

        while (p1 <= statelists[0].tail.sltail && p2 <= statelists[1].tail.sltail) {\r
                if (Compare16Bits(p1, p2) == 0) {\r
        while (p1 <= statelists[0].tail.sltail && p2 <= statelists[1].tail.sltail) {\r
                if (Compare16Bits(p1, p2) == 0) {\r

+                       \r

                        struct Crypto1State savestate, *savep = &savestate;\r
                        savestate = *p1;\r
                        while(Compare16Bits(p1, savep) == 0 && p1 <= statelists[0].tail.sltail) {\r
                        struct Crypto1State savestate, *savep = &savestate;\r
                        savestate = *p1;\r
                        while(Compare16Bits(p1, savep) == 0 && p1 <= statelists[0].tail.sltail) {\r


@@ -146,6 +146,7 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo
                        while (Compare16Bits(p1, p2) == 1) p2++;\r
                }\r
        }\r
                        while (Compare16Bits(p1, p2) == 1) p2++;\r
                }\r
        }\r

+\r

        p3->even = 0; p3->odd = 0;\r
        p4->even = 0; p4->odd = 0;\r
        statelists[0].len = p3 - statelists[0].head.slhead;\r
        p3->even = 0; p3->odd = 0;\r
        p4->even = 0; p4->odd = 0;\r
        statelists[0].len = p3 - statelists[0].head.slhead;\r


@@ -157,10 +158,11 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo
        // intersection of both lists. Create the intersection:\r
        qsort(statelists[0].head.keyhead, statelists[0].len, sizeof(uint64_t), compar_int);\r
        qsort(statelists[1].head.keyhead, statelists[1].len, sizeof(uint64_t), compar_int);\r
        // intersection of both lists. Create the intersection:\r
        qsort(statelists[0].head.keyhead, statelists[0].len, sizeof(uint64_t), compar_int);\r
        qsort(statelists[1].head.keyhead, statelists[1].len, sizeof(uint64_t), compar_int);\r

-\r
+       \r

        uint64_t *p5, *p6, *p7;\r
        p5 = p7 = statelists[0].head.keyhead; \r
        p6 = statelists[1].head.keyhead;\r
        uint64_t *p5, *p6, *p7;\r
        p5 = p7 = statelists[0].head.keyhead; \r
        p6 = statelists[1].head.keyhead;\r

+       \r

        while (p5 <= statelists[0].tail.keytail && p6 <= statelists[1].tail.keytail) {\r
                if (compar_int(p5, p6) == 0) {\r
                        *p7++ = *p5++;\r
        while (p5 <= statelists[0].tail.keytail && p6 <= statelists[1].tail.keytail) {\r
                if (compar_int(p5, p6) == 0) {\r
                        *p7++ = *p5++;\r


@@ -172,38 +174,57 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo
                }\r
        }\r
        statelists[0].len = p7 - statelists[0].head.keyhead;\r
                }\r
        }\r
        statelists[0].len = p7 - statelists[0].head.keyhead;\r

-       statelists[0].tail.keytail=--p7;\r
+       statelists[0].tail.keytail = --p7;\r

 \r
 \r

+       uint32_t numOfCandidates = statelists[0].len;\r
+       if ( numOfCandidates == 0 ) goto out;\r
+       \r

        memset(resultKey, 0, 6);\r
        memset(resultKey, 0, 6);\r

+       uint64_t key64 = 0;\r
+\r

        // The list may still contain several key candidates. Test each of them with mfCheckKeys\r
        // The list may still contain several key candidates. Test each of them with mfCheckKeys\r

-       for (i = 0; i < statelists[0].len; i++) {\r
-               uint8_t keyBlock[6];\r
-               uint64_t key64;\r
+       // uint32_t max_keys = keycnt > (USB_CMD_DATA_SIZE/6) ? (USB_CMD_DATA_SIZE/6) : keycnt;\r
+       uint8_t keyBlock[USB_CMD_DATA_SIZE] = {0x00};\r
+\r
+       for (i = 0; i < numOfCandidates; ++i){\r

                crypto1_get_lfsr(statelists[0].head.slhead + i, &key64);\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
-                       num_to_bytes(key64, 6, resultKey);\r
-                       break;\r
-               }\r
+               num_to_bytes(key64, 6, keyBlock + i * 6);\r
+       }\r
+\r
+       if (!mfCheckKeys(statelists[0].blockNo, statelists[0].keyType, false, numOfCandidates, keyBlock, &key64)) {             \r
+               free(statelists[0].head.slhead);\r
+               free(statelists[1].head.slhead);\r
+               num_to_bytes(key64, 6, resultKey);\r
+\r
+               PrintAndLog("UID: %08x target block:%3u key type: %c  -- Found key [%012"llx"]",\r
+                       uid,\r
+                       (uint16_t)resp.arg[2] & 0xff,\r
+                       (resp.arg[2] >> 8) ? 'B' : 'A',\r
+                       key64\r
+               );\r
+               return -5;\r

        }\r
        \r
        }\r
        \r

+out:\r
+       PrintAndLog("UID: %08x target block:%3u key type: %c",\r
+                       uid,\r
+                       (uint16_t)resp.arg[2] & 0xff,\r
+                       (resp.arg[2] >> 8) ? 'B' : 'A'\r
+       );      \r
+\r

        free(statelists[0].head.slhead);\r
        free(statelists[1].head.slhead);\r
        free(statelists[0].head.slhead);\r
        free(statelists[1].head.slhead);\r

-       \r
-       return 0;\r
+       return -4;\r

 }\r
 \r
 }\r
 \r

-int mfCheckKeys (uint8_t blockNo, uint8_t keyType, uint8_t keycnt, uint8_t * keyBlock, uint64_t * key){\r
-\r
+int mfCheckKeys (uint8_t blockNo, uint8_t keyType, bool clear_trace, uint8_t keycnt, uint8_t * keyBlock, uint64_t * key){\r

        *key = 0;\r
        *key = 0;\r

-\r
-       UsbCommand c = {CMD_MIFARE_CHKKEYS, {blockNo, keyType, keycnt}};\r
+       UsbCommand c = {CMD_MIFARE_CHKKEYS, { (blockNo | (keyType<<8)), clear_trace, keycnt}};\r

        memcpy(c.d.asBytes, keyBlock, 6 * keycnt);\r
        memcpy(c.d.asBytes, keyBlock, 6 * keycnt);\r

+       clearCommandBuffer();\r

        SendCommand(&c);\r
        SendCommand(&c);\r

-\r

        UsbCommand resp;\r
        UsbCommand resp;\r

-       if (!WaitForResponseTimeout(CMD_ACK,&resp,3000)) return 1;\r
+       if (!WaitForResponseTimeout(CMD_ACK, &resp, 2500)) return 1;\r

        if ((resp.arg[0] & 0xff) != 0x01) return 2;\r
        *key = bytes_to_num(resp.d.asBytes, 6);\r
        return 0;\r
        if ((resp.arg[0] & 0xff) != 0x01) return 2;\r
        *key = bytes_to_num(resp.d.asBytes, 6);\r
        return 0;\r


@@ -213,8 +234,8 @@ int mfCheckKeys (uint8_t blockNo, uint8_t keyType, uint8_t keycnt, uint8_t * key
 \r
 int mfEmlGetMem(uint8_t *data, int blockNum, int blocksCount) {\r
        UsbCommand c = {CMD_MIFARE_EML_MEMGET, {blockNum, blocksCount, 0}};\r
 \r
 int mfEmlGetMem(uint8_t *data, int blockNum, int blocksCount) {\r
        UsbCommand c = {CMD_MIFARE_EML_MEMGET, {blockNum, blocksCount, 0}};\r

+       clearCommandBuffer();\r

        SendCommand(&c);\r
        SendCommand(&c);\r

-\r

        UsbCommand resp;\r
        if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) return 1;\r
        memcpy(data, resp.d.asBytes, blocksCount * 16);\r
        UsbCommand resp;\r
        if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) return 1;\r
        memcpy(data, resp.d.asBytes, blocksCount * 16);\r


@@ -222,25 +243,29 @@ int mfEmlGetMem(uint8_t *data, int blockNum, int blocksCount) {
 }\r
 \r
 int mfEmlSetMem(uint8_t *data, int blockNum, int blocksCount) {\r
 }\r
 \r
 int mfEmlSetMem(uint8_t *data, int blockNum, int blocksCount) {\r

-       UsbCommand c = {CMD_MIFARE_EML_MEMSET, {blockNum, blocksCount, 0}};\r
-       memcpy(c.d.asBytes, data, blocksCount * 16); \r
+       return mfEmlSetMem_xt(data, blockNum, blocksCount, 16);\r
+}\r
+\r
+int mfEmlSetMem_xt(uint8_t *data, int blockNum, int blocksCount, int blockBtWidth) {\r
+       UsbCommand c = {CMD_MIFARE_EML_MEMSET, {blockNum, blocksCount, blockBtWidth}};\r
+       memcpy(c.d.asBytes, data, blocksCount * blockBtWidth); \r
+       clearCommandBuffer();\r

        SendCommand(&c);\r
        return 0;\r
 }\r
 \r
 // "MAGIC" CARD\r
        SendCommand(&c);\r
        return 0;\r
 }\r
 \r
 // "MAGIC" CARD\r

+int mfCSetUID(uint8_t *uid, uint8_t *atqa, uint8_t *sak, uint8_t *oldUID, uint8_t wipecard) {\r

 \r
 \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
+       uint8_t params = MAGIC_SINGLE;\r
+       uint8_t block0[16];\r
+       memset(block0, 0x00, sizeof(block0));\r

 \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
+       int old = mfCGetBlock(0, block0, params);\r
+       if (old == 0)\r
+               PrintAndLog("old block 0:  %s", sprint_hex(block0, sizeof(block0)));\r
+       else \r
+               PrintAndLog("Couldn't get old data. Will write over the last bytes of Block 0.");       \r

 \r
        // fill in the new values\r
        // UID\r
 \r
        // fill in the new values\r
        // UID\r


@@ -248,25 +273,30 @@ int mfCSetUID(uint8_t *uid, uint8_t *atqa, uint8_t *sak, uint8_t *oldUID, bool w
        // 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
        // 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
+       if ( sak != NULL )\r

                block0[5]=sak[0];\r
                block0[5]=sak[0];\r

-       if (atqa!=NULL) {\r
+       \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
                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
+       if ( wipecard )          params |= MAGIC_WIPE;  \r
+       if ( oldUID == NULL) params |= MAGIC_UID;\r
+       \r
+       return mfCSetBlock(0, block0, oldUID, params);\r

 }\r
 \r
 }\r
 \r

-int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, bool wantWipe, uint8_t params) {\r
+int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, uint8_t params) {\r

 \r
        uint8_t isOK = 0;\r
 \r
        uint8_t isOK = 0;\r

-       UsbCommand c = {CMD_MIFARE_CSETBLOCK, {wantWipe, params & (0xFE | (uid == NULL ? 0:1)), blockNo}};\r
+       UsbCommand c = {CMD_MIFARE_CSETBLOCK, {params, blockNo, 0}};\r

        memcpy(c.d.asBytes, data, 16); \r
        memcpy(c.d.asBytes, data, 16); \r

+       clearCommandBuffer();\r

        SendCommand(&c);\r
        SendCommand(&c);\r

-\r

        UsbCommand resp;\r
        UsbCommand resp;\r

-       if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {\r
+       if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {\r

                isOK  = resp.arg[0] & 0xff;\r
                if (uid != NULL) \r
                        memcpy(uid, resp.d.asBytes, 4);\r
                isOK  = resp.arg[0] & 0xff;\r
                if (uid != NULL) \r
                        memcpy(uid, resp.d.asBytes, 4);\r


@@ -281,11 +311,10 @@ int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, bool wantWipe, uin
 \r
 int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params) {\r
        uint8_t isOK = 0;\r
 \r
 int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params) {\r
        uint8_t isOK = 0;\r

-\r
-       UsbCommand c = {CMD_MIFARE_CGETBLOCK, {params, 0, blockNo}};\r
+       UsbCommand c = {CMD_MIFARE_CGETBLOCK, {params, blockNo, 0}};    \r
+       clearCommandBuffer();\r

        SendCommand(&c);\r
        SendCommand(&c);\r

-\r
-  UsbCommand resp;\r
+       UsbCommand resp;\r

        if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {\r
                isOK  = resp.arg[0] & 0xff;\r
                memcpy(data, resp.d.asBytes, 16);\r
        if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {\r
                isOK  = resp.arg[0] & 0xff;\r
                memcpy(data, resp.d.asBytes, 16);\r


@@ -298,6 +327,7 @@ int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params) {
 }\r
 \r
 // SNIFFER\r
 }\r
 \r
 // SNIFFER\r

+// [iceman] so many global variables....\r

 \r
 // constants\r
 static uint8_t trailerAccessBytes[4] = {0x08, 0x77, 0x8F, 0x00};\r
 \r
 // constants\r
 static uint8_t trailerAccessBytes[4] = {0x08, 0x77, 0x8F, 0x00};\r


@@ -311,17 +341,16 @@ static uint8_t traceCurBlock = 0;
 static uint8_t traceCurKey = 0;\r
 \r
 struct Crypto1State *traceCrypto1 = NULL;\r
 static uint8_t traceCurKey = 0;\r
 \r
 struct Crypto1State *traceCrypto1 = NULL;\r

+struct Crypto1State *revstate = NULL;\r
+uint64_t key = 0;\r
+uint32_t ks2 = 0;\r
+uint32_t ks3 = 0;\r

 \r
 \r

-struct Crypto1State *revstate;\r
-uint64_t lfsr;\r
-uint32_t ks2;\r
-uint32_t ks3;\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
+uint32_t cuid = 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 isTraceCardEmpty(void) {\r
        return ((traceCard[0] == 0) && (traceCard[1] == 0) && (traceCard[2] == 0) && (traceCard[3] == 0));\r


@@ -335,10 +364,10 @@ int isBlockEmpty(int blockN) {
 }\r
 \r
 int isBlockTrailer(int blockN) {\r
 }\r
 \r
 int isBlockTrailer(int blockN) {\r

- return ((blockN & 0x03) == 0x03);\r
+       return ((blockN & 0x03) == 0x03);\r

 }\r
 \r
 }\r
 \r

-int loadTraceCard(uint8_t *tuid) {\r
+int loadTraceCard(uint8_t *tuid, uint8_t uidlen) {\r

        FILE * f;\r
        char buf[64] = {0x00};\r
        uint8_t buf8[64] = {0x00};\r
        FILE * f;\r
        char buf[64] = {0x00};\r
        uint8_t buf8[64] = {0x00};\r


@@ -348,15 +377,12 @@ int loadTraceCard(uint8_t *tuid) {
                saveTraceCard();\r
                \r
        memset(traceCard, 0x00, 4096);\r
                saveTraceCard();\r
                \r
        memset(traceCard, 0x00, 4096);\r

-       memcpy(traceCard, tuid + 3, 4);\r
+       memcpy(traceCard, tuid, uidlen);\r

 \r
 \r

-       FillFileNameByUID(traceFileName, tuid, ".eml", 7);\r
+       FillFileNameByUID(traceFileName, tuid, ".eml", uidlen);\r

 \r
        f = fopen(traceFileName, "r");\r
 \r
        f = fopen(traceFileName, "r");\r

-       if (!f) {\r
-               fclose(f);\r
-               return 1;\r
-       }\r
+       if (!f) return 1;\r

        \r
        blockNum = 0;\r
                \r
        \r
        blockNum = 0;\r
                \r


@@ -364,10 +390,10 @@ int loadTraceCard(uint8_t *tuid) {
        \r
                memset(buf, 0, sizeof(buf));\r
                if (fgets(buf, sizeof(buf), f) == NULL) {\r
        \r
                memset(buf, 0, sizeof(buf));\r
                if (fgets(buf, sizeof(buf), f) == NULL) {\r

-      PrintAndLog("File reading error.");\r
+                       PrintAndLog("No trace file found or reading error.");\r

                        fclose(f);\r
                        return 2;\r
                        fclose(f);\r
                        return 2;\r

-    }\r
+               }\r

 \r
                if (strlen(buf) < 32){\r
                        if (feof(f)) break;\r
 \r
                if (strlen(buf) < 32){\r
                        if (feof(f)) break;\r


@@ -376,38 +402,35 @@ int loadTraceCard(uint8_t *tuid) {
                        return 2;\r
                }\r
                for (i = 0; i < 32; i += 2)\r
                        return 2;\r
                }\r
                for (i = 0; i < 32; i += 2)\r

-                       sscanf(&buf[i], "%02x", (unsigned int *)&buf8[i / 2]);\r
+                       sscanf(&buf[i], "%02X", (unsigned int *)&buf8[i / 2]);\r

 \r
                memcpy(traceCard + blockNum * 16, buf8, 16);\r
 \r
                blockNum++;\r
        }\r
        fclose(f);\r
 \r
                memcpy(traceCard + blockNum * 16, buf8, 16);\r
 \r
                blockNum++;\r
        }\r
        fclose(f);\r

-\r

        return 0;\r
 }\r
 \r
 int saveTraceCard(void) {\r
        return 0;\r
 }\r
 \r
 int saveTraceCard(void) {\r

-       FILE * f;\r

        \r
        if ((!strlen(traceFileName)) || (isTraceCardEmpty())) return 0;\r
        \r
        \r
        if ((!strlen(traceFileName)) || (isTraceCardEmpty())) return 0;\r
        \r

+       FILE * f;\r

        f = fopen(traceFileName, "w+");\r
        f = fopen(traceFileName, "w+");\r

-       if ( !f ) {\r
-               fclose(f);\r
-               return 1;\r
-       }\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
        \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, "%02X", *(traceCard + i * 16 + j)); \r

                fprintf(f,"\n");\r
        }\r
                fprintf(f,"\n");\r
        }\r

+       fflush(f);\r

        fclose(f);\r
        return 0;\r
 }\r
 \r
        fclose(f);\r
        return 0;\r
 }\r
 \r

-int mfTraceInit(uint8_t *tuid, uint8_t *atqa, uint8_t sak, bool wantSaveToEmlFile) {\r
+int mfTraceInit(uint8_t *tuid, uint8_t uidlen, uint8_t *atqa, uint8_t sak, bool wantSaveToEmlFile) {\r

 \r
        if (traceCrypto1) \r
                crypto1_destroy(traceCrypto1);\r
 \r
        if (traceCrypto1) \r
                crypto1_destroy(traceCrypto1);\r


@@ -415,16 +438,14 @@ int mfTraceInit(uint8_t *tuid, uint8_t *atqa, uint8_t sak, bool wantSaveToEmlFil
        traceCrypto1 = NULL;\r
 \r
        if (wantSaveToEmlFile) \r
        traceCrypto1 = NULL;\r
 \r
        if (wantSaveToEmlFile) \r

-               loadTraceCard(tuid);\r
+               loadTraceCard(tuid, uidlen);\r

                \r
        traceCard[4] = traceCard[0] ^ traceCard[1] ^ traceCard[2] ^ traceCard[3];\r
        traceCard[5] = sak;\r
        memcpy(&traceCard[6], atqa, 2);\r
        traceCurBlock = 0;\r
                \r
        traceCard[4] = traceCard[0] ^ traceCard[1] ^ traceCard[2] ^ traceCard[3];\r
        traceCard[5] = sak;\r
        memcpy(&traceCard[6], atqa, 2);\r
        traceCurBlock = 0;\r

-       uid = bytes_to_num(tuid + 3, 4);\r
-       \r
+       cuid = bytes_to_num(tuid+(uidlen-4), 4);\r

        traceState = TRACE_IDLE;\r
        traceState = TRACE_IDLE;\r

-\r

        return 0;\r
 }\r
 \r
        return 0;\r
 }\r
 \r


@@ -436,44 +457,48 @@ void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len, bool i
                for (i = 0; i < len; i++)\r
                        data[i] = crypto1_byte(pcs, 0x00, isEncrypted) ^ data[i];\r
        } else {\r
                for (i = 0; i < len; i++)\r
                        data[i] = crypto1_byte(pcs, 0x00, isEncrypted) ^ data[i];\r
        } else {\r

-               bt = 0;\r
-               for (i = 0; i < 4; i++)\r
-                       bt |= (crypto1_bit(pcs, 0, isEncrypted) ^ BIT(data[0], i)) << i;\r
-                               \r
+               bt = 0;         \r
+               bt |= (crypto1_bit(pcs, 0, isEncrypted) ^ BIT(data[0], 0)) << 0;\r
+               bt |= (crypto1_bit(pcs, 0, isEncrypted) ^ BIT(data[0], 1)) << 1;\r
+               bt |= (crypto1_bit(pcs, 0, isEncrypted) ^ BIT(data[0], 2)) << 2;\r
+               bt |= (crypto1_bit(pcs, 0, isEncrypted) ^ BIT(data[0], 3)) << 3;                        \r

                data[0] = bt;\r
        }\r
        return;\r
 }\r
 \r
                data[0] = bt;\r
        }\r
        return;\r
 }\r
 \r

-\r

 int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {\r
 int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {\r

-       uint8_t data[64];\r

 \r
        if (traceState == TRACE_ERROR) return 1;\r
 \r
        if (traceState == TRACE_ERROR) return 1;\r

+\r

        if (len > 64) {\r
                traceState = TRACE_ERROR;\r
                return 1;\r
        }\r
        \r
        if (len > 64) {\r
                traceState = TRACE_ERROR;\r
                return 1;\r
        }\r
        \r

+       uint8_t data[64];\r
+       memset(data, 0x00, sizeof(data));\r
+       \r

        memcpy(data, data_src, len);\r
        memcpy(data, data_src, len);\r

+       \r

        if ((traceCrypto1) && ((traceState == TRACE_IDLE) || (traceState > TRACE_AUTH_OK))) {\r
                mf_crypto1_decrypt(traceCrypto1, data, len, 0);\r
        if ((traceCrypto1) && ((traceState == TRACE_IDLE) || (traceState > TRACE_AUTH_OK))) {\r
                mf_crypto1_decrypt(traceCrypto1, data, len, 0);\r

-               PrintAndLog("dec> %s", sprint_hex(data, len));\r
-               AddLogHex(logHexFileName, "dec> ", data, len); \r
+               PrintAndLog("DEC| %s", sprint_hex(data, len));\r
+               AddLogHex(logHexFileName, "DEC| ", data, len); \r

        }\r
        \r
        switch (traceState) {\r
        case TRACE_IDLE: \r
                // check packet crc16!\r
                if ((len >= 4) && (!CheckCrc14443(CRC_14443_A, data, len))) {\r
        }\r
        \r
        switch (traceState) {\r
        case TRACE_IDLE: \r
                // check packet crc16!\r
                if ((len >= 4) && (!CheckCrc14443(CRC_14443_A, data, len))) {\r

-                       PrintAndLog("dec> CRC ERROR!!!");\r
-                       AddLogLine(logHexFileName, "dec> ", "CRC ERROR!!!"); \r
+                       PrintAndLog("DEC| CRC ERROR!!!");\r
+                       AddLogLine(logHexFileName, "DEC| ", "CRC ERROR!!!"); \r

                        traceState = TRACE_ERROR;  // do not decrypt the next commands\r
                        return 1;\r
                }\r
                \r
                // AUTHENTICATION\r
                        traceState = TRACE_ERROR;  // do not decrypt the next commands\r
                        return 1;\r
                }\r
                \r
                // AUTHENTICATION\r

-               if ((len == 4) && ((data[0] == 0x60) || (data[0] == 0x61))) {\r
+               if ((len == 4) && ((data[0] == MIFARE_AUTH_KEYA) || (data[0] == MIFARE_AUTH_KEYB))) {\r

                        traceState = TRACE_AUTH1;\r
                        traceCurBlock = data[1];\r
                        traceCurKey = data[0] == 60 ? 1:0;\r
                        traceState = TRACE_AUTH1;\r
                        traceCurBlock = data[1];\r
                        traceCurKey = data[0] == 60 ? 1:0;\r


@@ -481,28 +506,25 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                }\r
 \r
                // READ\r
                }\r
 \r
                // READ\r

-               if ((len ==4) && ((data[0] == 0x30))) {\r
+               if ((len ==4) && ((data[0] == ISO14443A_CMD_READBLOCK))) {\r

                        traceState = TRACE_READ_DATA;\r
                        traceCurBlock = data[1];\r
                        return 0;\r
                }\r
 \r
                // WRITE\r
                        traceState = TRACE_READ_DATA;\r
                        traceCurBlock = data[1];\r
                        return 0;\r
                }\r
 \r
                // WRITE\r

-               if ((len ==4) && ((data[0] == 0xA0))) {\r
+               if ((len ==4) && ((data[0] == ISO14443A_CMD_WRITEBLOCK))) {\r

                        traceState = TRACE_WRITE_OK;\r
                        traceCurBlock = data[1];\r
                        return 0;\r
                }\r
 \r
                // HALT\r
                        traceState = TRACE_WRITE_OK;\r
                        traceCurBlock = data[1];\r
                        return 0;\r
                }\r
 \r
                // HALT\r

-               if ((len ==4) && ((data[0] == 0x50) && (data[1] == 0x00))) {\r
+               if ((len ==4) && ((data[0] == ISO14443A_CMD_HALT) && (data[1] == 0x00))) {\r

                        traceState = TRACE_ERROR;  // do not decrypt the next commands\r
                        return 0;\r
                }\r
                        traceState = TRACE_ERROR;  // do not decrypt the next commands\r
                        return 0;\r
                }\r

-               \r

                return 0;\r
                return 0;\r

-       break;\r
-       \r

        case TRACE_READ_DATA: \r
                if (len == 18) {\r
                        traceState = TRACE_IDLE;\r
        case TRACE_READ_DATA: \r
                if (len == 18) {\r
                        traceState = TRACE_IDLE;\r


@@ -518,23 +540,19 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                        traceState = TRACE_ERROR;\r
                        return 1;\r
                }\r
                        traceState = TRACE_ERROR;\r
                        return 1;\r
                }\r

-       break;\r
-\r
+               break;\r

        case TRACE_WRITE_OK: \r
                if ((len == 1) && (data[0] == 0x0a)) {\r
                        traceState = TRACE_WRITE_DATA;\r
        case TRACE_WRITE_OK: \r
                if ((len == 1) && (data[0] == 0x0a)) {\r
                        traceState = TRACE_WRITE_DATA;\r

-\r

                        return 0;\r
                } else {\r
                        traceState = TRACE_ERROR;\r
                        return 1;\r
                }\r
                        return 0;\r
                } else {\r
                        traceState = TRACE_ERROR;\r
                        return 1;\r
                }\r

-       break;\r
-\r
+               break;\r

        case TRACE_WRITE_DATA: \r
                if (len == 18) {\r
                        traceState = TRACE_IDLE;\r
        case TRACE_WRITE_DATA: \r
                if (len == 18) {\r
                        traceState = TRACE_IDLE;\r

-\r

                        memcpy(traceCard + traceCurBlock * 16, data, 16);\r
                        if (wantSaveToEmlFile) saveTraceCard();\r
                        return 0;\r
                        memcpy(traceCard + traceCurBlock * 16, data, 16);\r
                        if (wantSaveToEmlFile) saveTraceCard();\r
                        return 0;\r


@@ -542,8 +560,7 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                        traceState = TRACE_ERROR;\r
                        return 1;\r
                }\r
                        traceState = TRACE_ERROR;\r
                        return 1;\r
                }\r

-       break;\r
-\r
+               break;\r

        case TRACE_AUTH1: \r
                if (len == 4) {\r
                        traceState = TRACE_AUTH2;\r
        case TRACE_AUTH1: \r
                if (len == 4) {\r
                        traceState = TRACE_AUTH2;\r


@@ -553,12 +570,10 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                        traceState = TRACE_ERROR;\r
                        return 1;\r
                }\r
                        traceState = TRACE_ERROR;\r
                        return 1;\r
                }\r

-       break;\r
-\r
+               break;\r

        case TRACE_AUTH2: \r
                if (len == 8) {\r
                        traceState = TRACE_AUTH_OK;\r
        case TRACE_AUTH2: \r
                if (len == 8) {\r
                        traceState = TRACE_AUTH_OK;\r

-\r

                        nr_enc = bytes_to_num(data, 4);\r
                        ar_enc = bytes_to_num(data + 4, 4);\r
                        return 0;\r
                        nr_enc = bytes_to_num(data, 4);\r
                        ar_enc = bytes_to_num(data + 4, 4);\r
                        return 0;\r


@@ -566,12 +581,10 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                        traceState = TRACE_ERROR;\r
                        return 1;\r
                }\r
                        traceState = TRACE_ERROR;\r
                        return 1;\r
                }\r

-       break;\r
-\r
+               break;\r

        case TRACE_AUTH_OK: \r
        case TRACE_AUTH_OK: \r

-               if (len ==4) {\r
+               if (len == 4) {\r

                        traceState = TRACE_IDLE;\r
                        traceState = TRACE_IDLE;\r

-\r

                        at_enc = bytes_to_num(data, 4);\r
                        \r
                        //  decode key here)\r
                        at_enc = bytes_to_num(data, 4);\r
                        \r
                        //  decode key here)\r


@@ -581,48 +594,51 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                        lfsr_rollback_word(revstate, 0, 0);\r
                        lfsr_rollback_word(revstate, 0, 0);\r
                        lfsr_rollback_word(revstate, nr_enc, 1);\r
                        lfsr_rollback_word(revstate, 0, 0);\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
+                       lfsr_rollback_word(revstate, cuid ^ nt, 0);\r
+                       crypto1_get_lfsr(revstate, &key);\r
+                       PrintAndLog("Found Key: [%012"llx"]", key);\r
+                       \r
+                       //if ( tryMfk64(cuid, nt, nr_enc, ar_enc, at_enc, &key) )\r
+                       AddLogUint64(logHexFileName, "Found Key: ", key); \r

                        \r
                        int blockShift = ((traceCurBlock & 0xFC) + 3) * 16;\r
                        if (isBlockEmpty((traceCurBlock & 0xFC) + 3)) memcpy(traceCard + blockShift + 6, trailerAccessBytes, 4);\r
                        \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
-                       } else {\r
-                               num_to_bytes(lfsr, 6, traceCard + blockShift);\r
-                       }\r
-                       if (wantSaveToEmlFile) saveTraceCard();\r
+                       if (traceCurKey)\r
+                               num_to_bytes(key, 6, traceCard + blockShift + 10);\r
+                       else\r
+                               num_to_bytes(key, 6, traceCard + blockShift);\r
+                       \r
+                       if (wantSaveToEmlFile)\r
+                               saveTraceCard();\r

 \r
 \r

-                       if (traceCrypto1) {\r
+                       if (traceCrypto1)\r

                                crypto1_destroy(traceCrypto1);\r
                                crypto1_destroy(traceCrypto1);\r

-                       }\r

                        \r
                        // set cryptosystem state\r
                        traceCrypto1 = lfsr_recovery64(ks2, ks3);\r
                        \r
                        \r
                        // set cryptosystem state\r
                        traceCrypto1 = lfsr_recovery64(ks2, ks3);\r
                        \r

-//     nt = crypto1_word(traceCrypto1, nt ^ uid, 1) ^ nt;\r
-\r
-       /*      traceCrypto1 = crypto1_create(lfsr); // key in lfsr\r
-               crypto1_word(traceCrypto1, nt ^ uid, 0);\r
-               crypto1_word(traceCrypto1, ar, 1);\r
-               crypto1_word(traceCrypto1, 0, 0);\r
-               crypto1_word(traceCrypto1, 0, 0);*/\r
-       \r

                        return 0;\r
                } else {\r
                        traceState = TRACE_ERROR;\r
                        return 1;\r
                }\r
                        return 0;\r
                } else {\r
                        traceState = TRACE_ERROR;\r
                        return 1;\r
                }\r

-       break;\r
-\r
+               break;\r

        default: \r
                traceState = TRACE_ERROR;\r
                return 1;\r
        }\r
        default: \r
                traceState = TRACE_ERROR;\r
                return 1;\r
        }\r

+       return 0;\r
+}\r

 \r
 \r

+int tryDecryptWord(uint32_t nt, uint32_t ar_enc, uint32_t at_enc, uint8_t *data, int len){\r
+       PrintAndLog("\nEncrypted data: [%s]", sprint_hex(data, len) );\r
+       struct Crypto1State *pcs = NULL;\r
+       ks2 = ar_enc ^ prng_successor(nt, 64);\r
+       ks3 = at_enc ^ prng_successor(nt, 96);\r
+       pcs = lfsr_recovery64(ks2, ks3);\r
+       mf_crypto1_decrypt(pcs, data, len, FALSE);\r
+       PrintAndLog("Decrypted data: [%s]", sprint_hex(data, len) );\r
+       crypto1_destroy(pcs);\r

        return 0;\r
 }\r
        return 0;\r
 }\r