]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdhfmfu.c
mfu info / dump attempt at missing auths
[proxmark3-svn] / client / cmdhfmfu.c
index e1169659bd3d961ff20529d588ab95ecd9558e28..a502a23d990a1406e844bd9fbd48e536eefe02a0 100644 (file)
@@ -586,6 +586,7 @@ int CmdHF14AMfUInfo(const char *Cmd){
        uint8_t datalen = 0;
        uint8_t authenticationkey[16] = {0x00};
        uint8_t pack[4] = {0,0,0,0};
+       int len=0;
 
        while(param_getchar(Cmd, cmdp) != 0x00)
        {
@@ -640,12 +641,25 @@ int CmdHF14AMfUInfo(const char *Cmd){
        }
 
        if ( hasAuthKey ) {
-               if ((tagtype & UL_C)) 
-                       try3DesAuthentication(authenticationkey);
-               else
-                       ulev1_requestAuthentication(authenticationkey, pack, sizeof(pack));
+               if ((tagtype & UL_C)) {
+                       ul_switch_off_field();
+                       //will select card automatically
+                       if (try3DesAuthentication(authenticationkey, false) != 1) {
+                               ul_switch_off_field();
+                               PrintAndLog("Error: Authentication Failed UL-C");
+                               return 0;
+                       }
+               } else {
+                       len = ulev1_requestAuthentication(authenticationkey, pack, sizeof(pack));
+                       if (len < 1) {
+                               if (!len) ul_switch_off_field();
+                               PrintAndLog("Error: Authentication Failed UL-EV1/NTAG");
+                               return 0;
+                       }
+               }
        }
 
+
        // read pages 0,1,2,4 (should read 4pages)
        status = ul_read(0, data, sizeof(data));
        if ( status == -1 ){
@@ -681,17 +695,18 @@ int CmdHF14AMfUInfo(const char *Cmd){
                        if ( hasAuthKey ) return 1;
 
                        PrintAndLog("Trying some default 3des keys");
-                       ul_switch_off_field();
+                       ul_switch_off_field(); //will select again in try3DesAuth...
                        for (uint8_t i = 0; i < KEYS_3DES_COUNT; ++i ){
                                key = default_3des_keys[i];
-                               if (try3DesAuthentication(key) == 1){
+                               if (try3DesAuthentication(key, true) == 1){
                                        PrintAndLog("Found default 3des key: "); //%s", sprint_hex(key,16));
                                        uint8_t keySwap[16];
                                        memcpy(keySwap, SwapEndian64(key,16,8), 16);
                                        ulc_print_3deskey(keySwap);
                                        return 1;
-                               }
+                               } 
                        }
+                       return 1; //return even if key not found (UL_C is done)
                }
        }
 
@@ -743,13 +758,14 @@ int CmdHF14AMfUInfo(const char *Cmd){
                if ( authlim == 0 ){
                        PrintAndLog("\n--- Known EV1/NTAG passwords.");
 
-                       int len=0; //if len goes to -1 the connection will be turned off.
                        for (uint8_t i = 0; i < 3; ++i ){
                                key = default_pwd_pack[i];
                                if ( len > -1 ){
                                        len = ulev1_requestAuthentication(key, pack, sizeof(pack));
-                                       PrintAndLog("Found a default password: %s || Pack: %02X %02X",sprint_hex(key, 4), pack[0], pack[1]);
-                                       break;
+                                       if (len == 1) {
+                                               PrintAndLog("Found a default password: %s || Pack: %02X %02X",sprint_hex(key, 4), pack[0], pack[1]);
+                                               break;
+                                       }
                                }
                        }
                        if (len > -1) ul_switch_off_field();
@@ -907,9 +923,12 @@ int usage_hf_mfu_dump(void)
        PrintAndLog("It autodetects card type.\n");     
        PrintAndLog("Usage:  hf mfu dump s k <key> n <filename w/o .bin>");
        PrintAndLog("  Options : ");
-       PrintAndLog("  k <key> : Enter key for authentication");
-       PrintAndLog("  n <FN > : Enter filename w/o .bin to save the dump as"); 
-       PrintAndLog("        s : Swap entered key's endianness for auth");
+       PrintAndLog("  k <key> : key for authentication [UL-C 16bytes, EV1/NTAG 4bytes]");
+       PrintAndLog("  l       : swap entered key's endianness for auth");
+       PrintAndLog("  n <FN > : filename w/o .bin to save the dump as");       
+       PrintAndLog("  p <Pg > : starting Page number to manually set a page to start the dump at");    
+       PrintAndLog("  q <qty> : number of Pages to manually set how many pages to dump");      
+
        PrintAndLog("");
        PrintAndLog("   sample : hf mfu dump");
        PrintAndLog("          : hf mfu dump n myfile");
@@ -948,6 +967,8 @@ int CmdHF14AMfUDump(const char *Cmd){
        bool swapEndian = false;
        bool manualPages = false;
        uint8_t startPage = 0;
+       char tempStr[50];
+
        while(param_getchar(Cmd, cmdp) != 0x00)
        {
                switch(param_getchar(Cmd, cmdp))
@@ -957,15 +978,25 @@ int CmdHF14AMfUDump(const char *Cmd){
                        return usage_hf_mfu_dump();
                case 'k':
                case 'K':
-                       dataLen = param_gethex(Cmd, cmdp+1, data, 32);
-                       if (dataLen) {
-                               errors = true; 
-                       } else {
-                               memcpy(key, data, 16);
-                       }   
+                       dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+                       if (dataLen == 32) //ul-c
+                               errors = param_gethex(tempStr, 0, key, dataLen);
+                       else if (dataLen == 8) //ev1/ntag
+                               errors = param_gethex(tempStr, 0, key, dataLen);
+                       else
+                               errors = true;
+
+                       if (!errors) 
+                               memcpy(key, data, dataLen/2);
+                               
                        cmdp += 2;
                        hasPwd = true;
                        break;
+               case 'l':
+               case 'L':
+                       swapEndian = true;
+                       cmdp++;
+                       break;
                case 'n':
                case 'N':
                        fileNlen = param_getstr(Cmd, cmdp+1, filename);
@@ -985,17 +1016,6 @@ int CmdHF14AMfUDump(const char *Cmd){
                        cmdp += 2;
                        manualPages = true;
                        break;
-               case 's':
-               case 'S':
-                       swapEndian = true;
-                       cmdp++;
-                       break;
-               case 't':
-               case 'T':
-                       //key type  - ul-c or ev1/ntag
-                       //TODO
-                       cmdp += 2;
-                       break;
                default:
                        PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
                        errors = true;
@@ -1007,7 +1027,7 @@ int CmdHF14AMfUDump(const char *Cmd){
        //Validations
        if(errors) return usage_hf_mfu_dump();
 
-       if (swapEndian)
+       if (swapEndian && dataLen == 32)
                keyPtr = SwapEndian64(data, 16, 8);
 
        TagTypeUL_t tagtype = GetHF14AMfU_Type();
@@ -1020,50 +1040,29 @@ int CmdHF14AMfUDump(const char *Cmd){
 
        ul_print_type(tagtype, 0);
        PrintAndLog("Reading tag memory...");
-       /*
-       if ( tagtype & UL ) {
-               Pages = 16;
-               PrintAndLog(str,"", (tagtype & MAGIC)?" (magic)":"" );
-       }
-       else if ( tagtype & UL_C ) {
-               Pages = 44;
-               PrintAndLog(str,"-C", (tagtype & MAGIC)?" (magic)":"" );
+
+       UsbCommand c = {CMD_MIFAREUC_READCARD, {startPage,Pages}};
+       if ( hasPwd ) {
+               if (tagtype & UL_C)
+                       c.arg[2] = 1; //UL_C auth
+               else
+                       c.arg[2] = 2; //UL_EV1/NTAG auth
+
+               memcpy(c.d.asBytes, key, dataLen/2);
        }
-       else if ( tagtype & UL_EV1_48 ) {
-               Pages = 18; 
-               PrintAndLog(str," EV1_48","");
+       SendCommand(&c);
+       UsbCommand resp;
+       if (!WaitForResponseTimeout(CMD_ACK, &resp,1500)) {
+               PrintAndLog("Command execute time-out");
+               return 1;
        }
-       else if ( tagtype & UL_EV1_128 ) {
-               Pages = 32; 
-               PrintAndLog(str," EV1_128","");
+       PrintAndLog     ("%u,%u",resp.arg[0],resp.arg[1]);
+       uint8_t isOK = resp.arg[0] & 0xff;
+       if (isOK) {
+               memcpy(data, resp.d.asBytes, resp.arg[1]);
        } else {
-               Pages = 16;
-               PrintAndLog("Dumping unknown Ultralight, using default values.");
-       }
-       */
-       if (!hasPwd || (tagtype & UL_C)){
-               UsbCommand c = {CMD_MIFAREUC_READCARD, {startPage,Pages}};
-               if ( hasPwd ) {
-                       c.arg[2] = 1;
-                       memcpy(c.d.asBytes, key, 16);
-               }
-               SendCommand(&c);
-               UsbCommand resp;
-               if (!WaitForResponseTimeout(CMD_ACK, &resp,1500)) {
-                       PrintAndLog("Command execute time-out");
-                       return 1;
-               }
-               PrintAndLog     ("%u,%u",resp.arg[0],resp.arg[1]);
-               uint8_t isOK = resp.arg[0] & 0xff;
-               if (isOK) {
-                       memcpy(data, resp.d.asBytes, resp.arg[1]);
-               } else {
-                       PrintAndLog("Failed reading block: (%02x)", i);
-                       return 1;
-               }       
-       } else {
-               PrintAndLog("EV1 and NTAG pwd mode not ready yet");
-               return 0;
+               PrintAndLog("Failed reading block: (%02x)", i);
+               return 1;
        }
 
        // Load lock bytes.
@@ -1077,6 +1076,7 @@ int CmdHF14AMfUDump(const char *Cmd){
        }
 
        // Load bottom lockbytes if available
+       // HOW DOES THIS APPLY TO EV1 and/or NTAG???
        if ( Pages == 44 ) {
                lockbytes_t2 = data + (40*4);
                lockbytes2[0] = lockbytes_t2[2];
@@ -1087,10 +1087,12 @@ int CmdHF14AMfUDump(const char *Cmd){
        }
 
        // add keys
-       if (hasPwd){
+       if (hasPwd && dataLen == 32){ //UL_C
                memcpy(data + Pages*4, key, 16);
                Pages += 4;
-       }
+       } 
+       //TODO add key MEM location for other tags
+
        for (i = 0; i < Pages; ++i) {
                if ( i < 3 ) {
                        PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
@@ -1211,7 +1213,7 @@ int CmdHF14AMfucAuth(const char *Cmd){
        } 
 
        uint8_t *key = default_3des_keys[keyNo];
-       if (try3DesAuthentication(key)>0)
+       if (try3DesAuthentication(key, true) > 0)
                PrintAndLog("Authentication successful. 3des key: %s",sprint_hex(key, 16));
        else
                PrintAndLog("Authentication failed");
@@ -1219,9 +1221,9 @@ int CmdHF14AMfucAuth(const char *Cmd){
        return 0;
 }
 
-int try3DesAuthentication( uint8_t *key){
+int try3DesAuthentication( uint8_t *key, bool switch_off_field ){
        
-       uint32_t cuid = 0;
+       //uint32_t cuid = 0;
 
        des3_context ctx = { 0 };
        
@@ -1237,7 +1239,7 @@ int try3DesAuthentication( uint8_t *key){
        if ( !WaitForResponseTimeout(CMD_ACK, &resp, 1500) )    return -1;
        if ( !(resp.arg[0] & 0xff) ) return -2;
        
-       cuid  = resp.arg[1];    
+       //cuid  = resp.arg[1];  
        memcpy(enc_random_b,resp.d.asBytes+1,8);
 
        des3_set2key_dec(&ctx, key);
@@ -1254,7 +1256,7 @@ int try3DesAuthentication( uint8_t *key){
 
        //Auth2
        c.cmd = CMD_MIFAREUC_AUTH2;
-       c.arg[0] = cuid;
+       c.arg[0] = switch_off_field;
        memcpy(c.d.asBytes, rnd_ab, 16);
        SendCommand(&c);
 
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