emv/sc fixes and modifications: (#780)

[proxmark3-svn] / client / cmdhfmf.c

diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index c382664ba44aee0b08b0c58e3087d841e6b969ad..5bf3324a86ab72312b70f67d0658aec254cb7b7e 100644 (file)
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -141,12 +141,26 @@ int CmdHF14AMfRdBl(const char *Cmd)
                uint8_t isOK  = resp.arg[0] & 0xff;\r
                uint8_t *data = resp.d.asBytes;\r
 \r
                uint8_t isOK  = resp.arg[0] & 0xff;\r
                uint8_t *data = resp.d.asBytes;\r
 \r

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

                        PrintAndLog("isOk:%02x data:%s", isOK, sprint_hex(data, 16));\r
                        PrintAndLog("isOk:%02x data:%s", isOK, sprint_hex(data, 16));\r

-               else\r
+               } else {\r

                        PrintAndLog("isOk:%02x", isOK);\r
                        PrintAndLog("isOk:%02x", isOK);\r

+                       return 1;\r
+               }\r
+\r
+               if (mfIsSectorTrailer(blockNo) && (data[6] || data[7] || data[8])) {\r
+                       PrintAndLogEx(NORMAL, "Trailer decoded:");\r
+                       int bln = mfFirstBlockOfSector(mfSectorNum(blockNo));\r
+                       int blinc = (mfNumBlocksPerSector(mfSectorNum(blockNo)) > 4) ? 5 : 1;\r
+                       for (int i = 0; i < 4; i++) {\r
+                               PrintAndLogEx(NORMAL, "Access block %d%s: %s", bln, ((blinc > 1) && (i < 3) ? "+" : "") , mfGetAccessConditionsDesc(i, &data[6]));\r
+                               bln += blinc;\r
+                       }\r
+                       PrintAndLogEx(NORMAL, "UserData: %s", sprint_hex_inrow(&data[9], 1));\r
+               }\r

        } else {\r
                PrintAndLog("Command execute timeout");\r
        } else {\r
                PrintAndLog("Command execute timeout");\r

+               return 2;\r

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


@@ -201,6 +215,15 @@ int CmdHF14AMfRdSc(const char *Cmd)
                                PrintAndLog("data   : %s", sprint_hex(data + i * 16, 16));\r
                        }\r
                        PrintAndLog("trailer: %s", sprint_hex(data + (sectorNo<32?3:15) * 16, 16));\r
                                PrintAndLog("data   : %s", sprint_hex(data + i * 16, 16));\r
                        }\r
                        PrintAndLog("trailer: %s", sprint_hex(data + (sectorNo<32?3:15) * 16, 16));\r

+                       \r
+                       PrintAndLogEx(NORMAL, "Trailer decoded:");\r
+                        int bln = mfFirstBlockOfSector(sectorNo);\r
+                        int blinc = (mfNumBlocksPerSector(sectorNo) > 4) ? 5 : 1;\r
+                        for (i = 0; i < 4; i++) {\r
+                                PrintAndLogEx(NORMAL, "Access block %d%s: %s", bln, ((blinc > 1) && (i < 3) ? "+" : "") , mfGetAccessConditionsDesc(i, &(data + (sectorNo<32?3:15) * 16)[6]));\r
+                                bln += blinc;\r
+                        }\r
+                        PrintAndLogEx(NORMAL, "UserData: %s", sprint_hex_inrow(&(data + (sectorNo<32?3:15) * 16)[9], 1));\r

                }\r
        } else {\r
                PrintAndLog("Command execute timeout");\r
                }\r
        } else {\r
                PrintAndLog("Command execute timeout");\r


@@ -253,8 +276,7 @@ int CmdHF14AMfDump(const char *Cmd)
 {\r
        uint8_t sectorNo, blockNo;\r
 \r
 {\r
        uint8_t sectorNo, blockNo;\r
 \r

-       uint8_t keyA[40][6];\r
-       uint8_t keyB[40][6];\r
+       uint8_t keys[2][40][6];\r

        uint8_t rights[40][4];\r
        uint8_t carddata[256][16];\r
        uint8_t numSectors = 16;\r
        uint8_t rights[40][4];\r
        uint8_t carddata[256][16];\r
        uint8_t numSectors = 16;\r


@@ -267,38 +289,39 @@ int CmdHF14AMfDump(const char *Cmd)
        char cmdp = param_getchar(Cmd, 0);\r
        numSectors = ParamCardSizeSectors(cmdp);\r
 \r
        char cmdp = param_getchar(Cmd, 0);\r
        numSectors = ParamCardSizeSectors(cmdp);\r
 \r

-       if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H') {\r
-               PrintAndLog("Usage:   hf mf dump [card memory]");\r
+       if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {\r
+               PrintAndLog("Usage:   hf mf dump [card memory] [k|m]");\r

                PrintAndLog("  [card memory]: 0 = 320 bytes (Mifare Mini), 1 = 1K (default), 2 = 2K, 4 = 4K");\r
                PrintAndLog("  [card memory]: 0 = 320 bytes (Mifare Mini), 1 = 1K (default), 2 = 2K, 4 = 4K");\r

+               PrintAndLog("  k: Always try using both Key A and Key B for each sector, even if access bits would prohibit it");\r
+               PrintAndLog("  m: When missing access bits or keys, replace that block with NULL");\r

                PrintAndLog("");\r
                PrintAndLog("Samples: hf mf dump");\r
                PrintAndLog("         hf mf dump 4");\r
                PrintAndLog("");\r
                PrintAndLog("Samples: hf mf dump");\r
                PrintAndLog("         hf mf dump 4");\r

+               PrintAndLog("         hf mf dump 4 m");\r

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

+       char opts = param_getchar(Cmd, 1);\r
+       bool useBothKeysAlways = false;\r
+       if (opts == 'k' || opts == 'K') useBothKeysAlways = true;\r
+       bool nullMissingKeys = false;\r
+       if (opts == 'm' || opts == 'M') nullMissingKeys = true;\r
+\r

        if ((fin = fopen("dumpkeys.bin","rb")) == NULL) {\r
                PrintAndLog("Could not find file dumpkeys.bin");\r
                return 1;\r
        }\r
 \r
        if ((fin = fopen("dumpkeys.bin","rb")) == NULL) {\r
                PrintAndLog("Could not find file dumpkeys.bin");\r
                return 1;\r
        }\r
 \r

-       // Read keys A from file\r
-       for (sectorNo=0; sectorNo<numSectors; sectorNo++) {\r
-               size_t bytes_read = fread(keyA[sectorNo], 1, 6, fin);\r
-               if (bytes_read != 6) {\r
-                       PrintAndLog("File reading error.");\r
-                       fclose(fin);\r
-                       return 2;\r
-               }\r
-       }\r
-\r
-       // Read keys B from file\r
-       for (sectorNo=0; sectorNo<numSectors; sectorNo++) {\r
-               size_t bytes_read = fread(keyB[sectorNo], 1, 6, fin);\r
-               if (bytes_read != 6) {\r
-                       PrintAndLog("File reading error.");\r
-                       fclose(fin);\r
-                       return 2;\r
-               }\r
+       // Read keys from file\r
+       for (int group=0; group<=1; group++) {\r
+               for (sectorNo=0; sectorNo<numSectors; sectorNo++) {\r
+                       size_t bytes_read = fread(keys[group][sectorNo], 1, 6, fin);\r
+                       if (bytes_read != 6) {\r
+                               PrintAndLog("File reading error.");\r
+                               fclose(fin);\r
+                               return 2;\r
+                       }\r
+               }               \r

        }\r
 \r
        fclose(fin);\r
        }\r
 \r
        fclose(fin);\r


@@ -310,7 +333,8 @@ int CmdHF14AMfDump(const char *Cmd)
        for (sectorNo = 0; sectorNo < numSectors; sectorNo++) {\r
                for (tries = 0; tries < 3; tries++) {\r
                        UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + NumBlocksPerSector(sectorNo) - 1, 0, 0}};\r
        for (sectorNo = 0; sectorNo < numSectors; sectorNo++) {\r
                for (tries = 0; tries < 3; tries++) {\r
                        UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + NumBlocksPerSector(sectorNo) - 1, 0, 0}};\r

-                       memcpy(c.d.asBytes, keyA[sectorNo], 6);\r
+                       // At least the Access Conditions can always be read with key A.\r
+                       memcpy(c.d.asBytes, keys[0][sectorNo], 6);\r

                        SendCommand(&c);\r
 \r
                        if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {\r
                        SendCommand(&c);\r
 \r
                        if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {\r


@@ -346,23 +370,41 @@ int CmdHF14AMfDump(const char *Cmd)
                        for (tries = 0; tries < 3; tries++) {\r
                                if (blockNo == NumBlocksPerSector(sectorNo) - 1) {              // sector trailer. At least the Access Conditions can always be read with key A.\r
                                        UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 0, 0}};\r
                        for (tries = 0; tries < 3; tries++) {\r
                                if (blockNo == NumBlocksPerSector(sectorNo) - 1) {              // sector trailer. At least the Access Conditions can always be read with key A.\r
                                        UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 0, 0}};\r

-                                       memcpy(c.d.asBytes, keyA[sectorNo], 6);\r
+                                       memcpy(c.d.asBytes, keys[0][sectorNo], 6);\r

                                        SendCommand(&c);\r
                                        received = WaitForResponseTimeout(CMD_ACK,&resp,1500);\r
                                        SendCommand(&c);\r
                                        received = WaitForResponseTimeout(CMD_ACK,&resp,1500);\r

+                               } else if (useBothKeysAlways) {\r
+                                       // Always try both keys, even if access conditions wouldn't work.\r
+                                       for (int k=0; k<=1; k++) {\r
+                                               UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 1, 0}};\r
+                                               memcpy(c.d.asBytes, keys[k][sectorNo], 6);\r
+                                               SendCommand(&c);\r
+                                               received = WaitForResponseTimeout(CMD_ACK,&resp,1500);\r
+\r
+                                               // Don't try the other one on success.\r
+                                               if (resp.arg[0] & 0xff) break;\r
+                                       }\r

                                } else {                                                                                                // data block. Check if it can be read with key A or key B\r
                                        uint8_t data_area = sectorNo<32?blockNo:blockNo/5;\r
                                        if ((rights[sectorNo][data_area] == 0x03) || (rights[sectorNo][data_area] == 0x05)) {   // only key B would work\r
                                                UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 1, 0}};\r
                                } else {                                                                                                // data block. Check if it can be read with key A or key B\r
                                        uint8_t data_area = sectorNo<32?blockNo:blockNo/5;\r
                                        if ((rights[sectorNo][data_area] == 0x03) || (rights[sectorNo][data_area] == 0x05)) {   // only key B would work\r
                                                UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 1, 0}};\r

-                                               memcpy(c.d.asBytes, keyB[sectorNo], 6);\r
+                                               memcpy(c.d.asBytes, keys[1][sectorNo], 6);\r

                                                SendCommand(&c);\r
                                                received = WaitForResponseTimeout(CMD_ACK,&resp,1500);\r
                                        } else if (rights[sectorNo][data_area] == 0x07) {                                                                               // no key would work\r
                                                SendCommand(&c);\r
                                                received = WaitForResponseTimeout(CMD_ACK,&resp,1500);\r
                                        } else if (rights[sectorNo][data_area] == 0x07) {                                                                               // no key would work\r

-                                               isOK = false;\r

                                                PrintAndLog("Access rights do not allow reading of sector %2d block %3d", sectorNo, blockNo);\r
                                                PrintAndLog("Access rights do not allow reading of sector %2d block %3d", sectorNo, blockNo);\r

-                                               tries = 2;\r
+                                               if (nullMissingKeys) {\r
+                                                       memset(resp.d.asBytes, 0, 16);\r
+                                                       resp.arg[0] = 1;\r
+                                                       PrintAndLog("  ... filling the block with NULL");\r
+                                                       received = true;\r
+                                               } else {\r
+                                                       isOK = false;\r
+                                                       tries = 2;\r
+                                               }\r

                                        } else {                                                                                                                                                                // key A would work\r
                                                UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 0, 0}};\r
                                        } else {                                                                                                                                                                // key A would work\r
                                                UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 0, 0}};\r

-                                               memcpy(c.d.asBytes, keyA[sectorNo], 6);\r
+                                               memcpy(c.d.asBytes, keys[0][sectorNo], 6);\r

                                                SendCommand(&c);\r
                                                received = WaitForResponseTimeout(CMD_ACK,&resp,1500);\r
                                        }\r
                                                SendCommand(&c);\r
                                                received = WaitForResponseTimeout(CMD_ACK,&resp,1500);\r
                                        }\r


@@ -377,18 +419,8 @@ int CmdHF14AMfDump(const char *Cmd)
                                isOK  = resp.arg[0] & 0xff;\r
                                uint8_t *data  = resp.d.asBytes;\r
                                if (blockNo == NumBlocksPerSector(sectorNo) - 1) {              // sector trailer. Fill in the keys.\r
                                isOK  = resp.arg[0] & 0xff;\r
                                uint8_t *data  = resp.d.asBytes;\r
                                if (blockNo == NumBlocksPerSector(sectorNo) - 1) {              // sector trailer. Fill in the keys.\r

-                                       data[0]  = (keyA[sectorNo][0]);\r
-                                       data[1]  = (keyA[sectorNo][1]);\r
-                                       data[2]  = (keyA[sectorNo][2]);\r
-                                       data[3]  = (keyA[sectorNo][3]);\r
-                                       data[4]  = (keyA[sectorNo][4]);\r
-                                       data[5]  = (keyA[sectorNo][5]);\r
-                                       data[10] = (keyB[sectorNo][0]);\r
-                                       data[11] = (keyB[sectorNo][1]);\r
-                                       data[12] = (keyB[sectorNo][2]);\r
-                                       data[13] = (keyB[sectorNo][3]);\r
-                                       data[14] = (keyB[sectorNo][4]);\r
-                                       data[15] = (keyB[sectorNo][5]);\r
+                                       memcpy(data, keys[0][sectorNo], 6);\r
+                                       memcpy(data + 10, keys[1][sectorNo], 6);\r

                                }\r
                                if (isOK) {\r
                                        memcpy(carddata[FirstBlockOfSector(sectorNo) + blockNo], data, 16);\r
                                }\r
                                if (isOK) {\r
                                        memcpy(carddata[FirstBlockOfSector(sectorNo) + blockNo], data, 16);\r


@@ -2272,6 +2304,20 @@ int CmdHF14AMfCGetBlk(const char *Cmd) {
                }\r
 \r
        PrintAndLog("block data:%s", sprint_hex(memBlock, 16));\r
                }\r
 \r
        PrintAndLog("block data:%s", sprint_hex(memBlock, 16));\r

+       \r
+       if (mfIsSectorTrailer(blockNo)) {\r
+               PrintAndLogEx(NORMAL, "Trailer decoded:");\r
+               PrintAndLogEx(NORMAL, "Key A: %s", sprint_hex_inrow(memBlock, 6));\r
+               PrintAndLogEx(NORMAL, "Key B: %s", sprint_hex_inrow(&memBlock[10], 6));\r
+               int bln = mfFirstBlockOfSector(mfSectorNum(blockNo));\r
+               int blinc = (mfNumBlocksPerSector(mfSectorNum(blockNo)) > 4) ? 5 : 1;\r
+               for (int i = 0; i < 4; i++) {\r
+                       PrintAndLogEx(NORMAL, "Access block %d%s: %s", bln, ((blinc > 1) && (i < 3) ? "+" : "") , mfGetAccessConditionsDesc(i, &memBlock[6]));\r
+                       bln += blinc;\r
+               }\r
+               PrintAndLogEx(NORMAL, "UserData: %s", sprint_hex_inrow(&memBlock[9], 1));\r
+       }\r
+       \r

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


@@ -2322,6 +2368,19 @@ int CmdHF14AMfCGetSc(const char *Cmd) {
                }\r
 \r
                PrintAndLog("block %3d data:%s", baseblock + i, sprint_hex(memBlock, 16));\r
                }\r
 \r
                PrintAndLog("block %3d data:%s", baseblock + i, sprint_hex(memBlock, 16));\r

+               \r
+               if (mfIsSectorTrailer(baseblock + i)) {\r
+                PrintAndLogEx(NORMAL, "Trailer decoded:");\r
+                PrintAndLogEx(NORMAL, "Key A: %s", sprint_hex_inrow(memBlock, 6));\r
+                PrintAndLogEx(NORMAL, "Key B: %s", sprint_hex_inrow(&memBlock[10], 6));\r
+                int bln = baseblock;\r
+                int blinc = (mfNumBlocksPerSector(sectorNo) > 4) ? 5 : 1;\r
+                for (int i = 0; i < 4; i++) {\r
+                        PrintAndLogEx(NORMAL, "Access block %d%s: %s", bln, ((blinc > 1) && (i < 3) ? "+" : "") , mfGetAccessConditionsDesc(i, &memBlock[6]));\r
+                        bln += blinc;\r
+                }\r
+                PrintAndLogEx(NORMAL, "UserData: %s", sprint_hex_inrow(&memBlock[9], 1));\r
+        }\r

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