CHG: some magic generation1 tags is not following protocol and answers to the "halt...

[proxmark3-svn] / client / mifarehost.c

diff --git a/client/mifarehost.c b/client/mifarehost.c
index 35499b83677e18129e2278221ed865edbc52f32a..dc3b988ae8cddc9367fc3b09ace1a0e454bc6cfa 100644 (file)
--- a/client/mifarehost.c
+++ b/client/mifarehost.c
@@ -15,6 +15,8 @@
 #include "mifarehost.h"\r
 #include "proxmark3.h"\r
 \r
 #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
 // MIFARE\r
 int compar_int(const void * a, const void * b) {\r
        // didn't work: (the result is truncated to 32 bits)\r


@@ -69,7 +71,7 @@ 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
 \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
        uint32_t uid;\r
        UsbCommand resp;\r
 \r


@@ -83,25 +85,23 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo
        memcpy(c.d.asBytes, key, 6);\r
        SendCommand(&c);\r
 \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
 \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
        }\r
        \r
        // calc keys\r


@@ -183,26 +183,26 @@ 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
                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
        }\r
        \r
        free(statelists[0].head.slhead);\r
                        num_to_bytes(key64, 6, resultKey);\r
                        break;\r
                }\r
        }\r
        \r
        free(statelists[0].head.slhead);\r

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

        return 0;\r
 }\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
 \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
        memcpy(c.d.asBytes, keyBlock, 6 * keycnt);\r

+       \r
+       clearCommandBuffer();\r

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

-\r

        UsbCommand resp;\r
        if (!WaitForResponseTimeout(CMD_ACK,&resp,3000)) return 1;\r
        if ((resp.arg[0] & 0xff) != 0x01) return 2;\r
        UsbCommand resp;\r
        if (!WaitForResponseTimeout(CMD_ACK,&resp,3000)) return 1;\r
        if ((resp.arg[0] & 0xff) != 0x01) return 2;\r


@@ -214,17 +214,23 @@ 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
+       UsbCommand resp;\r

        if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) return 1;\r
        memcpy(data, resp.d.asBytes, blocksCount * 16);\r
        return 0;\r
 }\r
 \r
 int mfEmlSetMem(uint8_t *data, int blockNum, int blocksCount) {\r
        if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) return 1;\r
        memcpy(data, resp.d.asBytes, blocksCount * 16);\r
        return 0;\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
+\r
+       clearCommandBuffer();\r

        SendCommand(&c);\r
        return 0;\r
 }\r
        SendCommand(&c);\r
        return 0;\r
 }\r


@@ -264,9 +270,10 @@ int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, bool wantWipe, uin
        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
        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
 \r

-  UsbCommand resp;\r
+       clearCommandBuffer();\r
+       SendCommand(&c);\r
+       UsbCommand resp;\r

        if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {\r
                isOK  = resp.arg[0] & 0xff;\r
                if (uid != NULL) \r
        if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {\r
                isOK  = resp.arg[0] & 0xff;\r
                if (uid != NULL) \r


@@ -284,9 +291,10 @@ int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params) {
        uint8_t isOK = 0;\r
 \r
        UsbCommand c = {CMD_MIFARE_CGETBLOCK, {params, 0, blockNo}};\r
        uint8_t isOK = 0;\r
 \r
        UsbCommand c = {CMD_MIFARE_CGETBLOCK, {params, 0, blockNo}};\r

+       \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


@@ -313,16 +321,17 @@ static uint8_t traceCurKey = 0;
 \r
 struct Crypto1State *traceCrypto1 = NULL;\r
 \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
+uint64_t key = 0;\r
+uint32_t ks2 = 0;\r
+uint32_t ks3 = 0;\r

 \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 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 isTraceCardEmpty(void) {\r
        return ((traceCard[0] == 0) && (traceCard[1] == 0) && (traceCard[2] == 0) && (traceCard[3] == 0));\r


@@ -354,10 +363,7 @@ int loadTraceCard(uint8_t *tuid) {
        FillFileNameByUID(traceFileName, tuid, ".eml", 7);\r
 \r
        f = fopen(traceFileName, "r");\r
        FillFileNameByUID(traceFileName, tuid, ".eml", 7);\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


@@ -368,7 +374,7 @@ int loadTraceCard(uint8_t *tuid) {
                        PrintAndLog("File reading error.");\r
                        fclose(f);\r
                        return 2;\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
 \r
                if (strlen(buf) < 32){\r
                        if (feof(f)) break;\r


@@ -394,10 +400,7 @@ int saveTraceCard(void) {
        if ((!strlen(traceFileName)) || (isTraceCardEmpty())) return 0;\r
        \r
        f = fopen(traceFileName, "w+");\r
        if ((!strlen(traceFileName)) || (isTraceCardEmpty())) return 0;\r
        \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


@@ -474,7 +477,7 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                }\r
                \r
                // AUTHENTICATION\r
                }\r
                \r
                // AUTHENTICATION\r

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


@@ -584,17 +587,17 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                        lfsr_rollback_word(revstate, nr_enc, 1);\r
                        lfsr_rollback_word(revstate, uid ^ nt, 0);\r
 \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
                        \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
                        } 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
                        if (wantSaveToEmlFile) saveTraceCard();\r
 \r


@@ -607,7 +610,7 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                        \r
 //     nt = crypto1_word(traceCrypto1, nt ^ uid, 1) ^ nt;\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
                crypto1_word(traceCrypto1, nt ^ uid, 0);\r
                crypto1_word(traceCrypto1, ar, 1);\r
                crypto1_word(traceCrypto1, 0, 0);\r


@@ -627,3 +630,29 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
 \r
        return 0;\r
 }\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 nr_enc;  // encrypted reader challenge\r
+       uint32_t ar_enc;  // encrypted reader response\r
+       uint32_t at_enc;  // encrypted tag response\r
+       */\r
+\r
+       struct Crypto1State *pcs = NULL;\r
+       \r
+       ks2 = ar_enc ^ prng_successor(nt, 64);\r
+       ks3 = at_enc ^ prng_successor(nt, 96);\r
+       \r
+       PrintAndLog("Decrypting data with:");\r
+       PrintAndLog("      nt: %08x",nt);\r
+       PrintAndLog("  ar_enc: %08x",ar_enc);\r
+       PrintAndLog("  at_enc: %08x",at_enc);\r
+       PrintAndLog("\nEncrypted data: [%s]", sprint_hex(data,len) );\r
+\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