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CHG: re-factored the "HF MFU CAUTH" command to be simpler.
[proxmark3-svn] / client / cmdhfmfu.c
diff --git a/client/cmdhfmfu.c b/client/cmdhfmfu.c
index 310d5bdcd496148f31936cc36d88746b62512473..79f1f0278373641f3cbe8ec1e61caca20dbc1260 100644 (file)
--- a/client/cmdhfmfu.c
+++ b/client/cmdhfmfu.c
@@ -11,18 +11,65 @@
 #include "cmdhfmfu.h"
 #include "cmdhfmf.h"
 #include "cmdhf14a.h"
 #include "cmdhfmfu.h"
 #include "cmdhfmf.h"
 #include "cmdhf14a.h"
+#include "mifare.h"
 
 
-#define MAX_ULTRA_BLOCKS   0x0f
-#define MAX_ULTRAC_BLOCKS  0x2f
-//#define MAX_ULTRAC_BLOCKS  0x2c
+#define MAX_UL_BLOCKS   0x0f
+#define MAX_ULC_BLOCKS  0x2f
+#define MAX_ULEV1a_BLOCKS 0x0b;
+#define MAX_ULEV1b_BLOCKS 0x20;
 
 
+uint8_t default_3des_keys[7][16] = {
+               { 0x42,0x52,0x45,0x41,0x4b,0x4d,0x45,0x49,0x46,0x59,0x4f,0x55,0x43,0x41,0x4e,0x21 },// 3des std key
+               { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },// all zeroes
+               { 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f },// 0x00-0x0F
+               { 0x49,0x45,0x4D,0x4B,0x41,0x45,0x52,0x42,0x21,0x4E,0x41,0x43,0x55,0x4F,0x59,0x46 },// NFC-key
+               { 0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01 },// all ones
+               { 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF },// all FF
+               { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF }     // 11 22 33
+       };
+       
 static int CmdHelp(const char *Cmd);
 
 static int CmdHelp(const char *Cmd);
 
+// return 1 if tag responded to 0x1A.
+uint8_t requestAuthentication( uint8_t* nonce){
+
+       UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_RAW | ISO14A_APPEND_CRC ,2 ,0}};
+       c.d.asBytes[0] = 0x1A;
+       c.d.asBytes[1] = 0x00;
+       SendCommand(&c);
+       UsbCommand resp;        
+       WaitForResponse(CMD_ACK, &resp);  // skip select answer.
+
+       if ( !(resp.arg[0] & 0xff) ) 
+               return 0;
+       
+       if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
+       
+               if ( resp.arg[0] & 0xff ) {
+                       memcpy(nonce, resp.d.asBytes+1, 8);
+                       return 1;
+               }
+       } 
+       return 0;
+}
+
+typedef enum TAGTYPE_UL {
+       UNKNOWN         = 0x00,
+       UL                      = 0x01,
+       UL_C            = 0x02,
+       UL_EV1_48       = 0x04,
+       UL_EV1_128      = 0x08,
+       UL_MAGIC        = 0x10,
+       UL_C_MAGIC      = 0x14,
+} TagTypeUL_t;
+
 int CmdHF14AMfUInfo(const char *Cmd){
 
 int CmdHF14AMfUInfo(const char *Cmd){
 
+       TagTypeUL_t tagtype = UNKNOWN;
+       
        uint8_t datatemp[7] = {0x00};
        uint8_t isOK  = 0;
        uint8_t datatemp[7] = {0x00};
        uint8_t isOK  = 0;
-       uint8_t *data = NULL;
+       uint8_t data[16] = {0x00};
 
        UsbCommand c = {CMD_MIFAREU_READCARD, {0, 4}};
        SendCommand(&c);
 
        UsbCommand c = {CMD_MIFAREU_READCARD, {0, 4}};
        SendCommand(&c);
@@ -30,7 +77,7 @@ int CmdHF14AMfUInfo(const char *Cmd){
 
        if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
                isOK  = resp.arg[0] & 0xff;
 
        if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
                isOK  = resp.arg[0] & 0xff;
-               data  = resp.d.asBytes;
+               memcpy(data, resp.d.asBytes, sizeof(data));
 
                if (!isOK) {
                        PrintAndLog("Error reading from tag");
 
                if (!isOK) {
                        PrintAndLog("Error reading from tag");
@@ -40,45 +87,111 @@ int CmdHF14AMfUInfo(const char *Cmd){
                PrintAndLog("Command execute timed out");
                return -1;
        }
                PrintAndLog("Command execute timed out");
                return -1;
        }
-       
-       PrintAndLog("");
-       PrintAndLog("-- Mifare Ultralight / Ultralight-C Tag Information ---------");
+
+       PrintAndLog("\n-- Tag Information ---------");
        PrintAndLog("-------------------------------------------------------------");
        PrintAndLog("-------------------------------------------------------------");
+       
+       c.cmd = CMD_READER_ISO_14443a;
+       c.arg[0] = ISO14A_CONNECT | ISO14A_RAW | ISO14A_APPEND_CRC;
+       c.arg[1] = 1;
+       c.arg[2] = 0;
+       c.d.asBytes[0] = 0x60;
+       SendCommand(&c);
+       WaitForResponse(CMD_ACK, &resp);
+       
+       if ( resp.arg[0] ) {
+               if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
 
 
+                       uint8_t version[8] = {0,0,0,0,0,0,0,0};
+                       memcpy(&version, resp.d.asBytes, sizeof(version));
+                       uint8_t len  = resp.arg[0] & 0xff;
+                       
+                       if ( len == 0x0A && version[6] == 0x0B ) 
+                               tagtype = UL_EV1_48;
+                       else if ( len == 0x0A && version[6] != 0x0B ) 
+                               tagtype = UL_EV1_128;
+                       else if ( len == 0x01 )
+                               tagtype = UL_C | UL_C_MAGIC;
+                       else if ( len == 0x00 )
+                               tagtype = UL | UL_MAGIC | UL_C_MAGIC;           
+               }
+       }
+       
+       // Magic UL-C, mine have a static nonce response to 0x1A command.
+       uint8_t nonce1[8] = {0,0,0,0,0,0,0,0};
+       uint8_t nonce2[8] = {0,0,0,0,0,0,0,0};
+       uint8_t status = requestAuthentication(nonce1);
+       if ( status ) {
+               requestAuthentication(nonce2);
+               if ( !memcmp(nonce1, nonce2, 8) )
+                       tagtype = UL_C_MAGIC;
+       } else {
+               
+               //remove UL_C_MAGIC 
+               tagtype = tagtype & UL_C_MAGIC;
+               
+               // Magic Ultralight test here
+       }
+
+       switch(tagtype){
+               case UNKNOWN    : PrintAndLog("      TYPE : Unknown"); return 0;
+               case UL                 : PrintAndLog("      TYPE : MIFARE Ultralight");break;
+               case UL_C               : PrintAndLog("      TYPE : MIFARE Ultralight C");break;
+               case UL_EV1_48  : PrintAndLog("      TYPE : MIFARE Ultralight EV1 48 bytes"); break;
+               case UL_EV1_128 : PrintAndLog("      TYPE : MIFARE Ultralight EV1 128 bytes"); break;
+               case UL_MAGIC   : PrintAndLog("      TYPE : MIFARE Ultralight (MAGIC)");break;
+               case UL_C_MAGIC : PrintAndLog("      TYPE : MIFARE Ultralight-C (MAGIC)");break;
+       }
+       
        // UID
        memcpy( datatemp, data, 3);
        memcpy( datatemp+3, data+4, 4);
        
        // UID
        memcpy( datatemp, data, 3);
        memcpy( datatemp+3, data+4, 4);
        
-       PrintAndLog("MANUFACTURER : %s", getTagInfo(datatemp[0]));
-       PrintAndLog("         UID : %s ", sprint_hex(datatemp, 7));
+       PrintAndLog("       UID : %s ", sprint_hex(datatemp, 7));
+       PrintAndLog("      UID[0] (Manufacturer Byte) = %02x, Manufacturer: %s",  datatemp[0], getTagInfo(datatemp[0]) );
+       
        // BBC
        // CT (cascade tag byte) 0x88 xor SN0 xor SN1 xor SN2 
        int crc0 = 0x88 ^ data[0] ^ data[1] ^data[2];
        if ( data[3] == crc0 )
        // BBC
        // CT (cascade tag byte) 0x88 xor SN0 xor SN1 xor SN2 
        int crc0 = 0x88 ^ data[0] ^ data[1] ^data[2];
        if ( data[3] == crc0 )
-               PrintAndLog("        BCC0 : %02x - Ok", data[3]);
+               PrintAndLog("      BCC0 : %02x - Ok", data[3]);
        else
        else
-               PrintAndLog("        BCC0 : %02x - crc should be %02x", data[3], crc0);
+               PrintAndLog("      BCC0 : %02x - crc should be %02x", data[3], crc0);
                
        int crc1 = data[4] ^ data[5] ^ data[6] ^data[7];
        if ( data[8] == crc1 )
                
        int crc1 = data[4] ^ data[5] ^ data[6] ^data[7];
        if ( data[8] == crc1 )
-               PrintAndLog("        BCC1 : %02x - Ok", data[8]);
+               PrintAndLog("      BCC1 : %02x - Ok", data[8]);
        else
        else
-               PrintAndLog("        BCC1 : %02x - crc should be %02x", data[8], crc1 );
+               PrintAndLog("      BCC1 : %02x - crc should be %02x", data[8], crc1 );
        
        
-       PrintAndLog("    Internal : %s ", sprint_hex(data + 9, 1));
+       PrintAndLog("  Internal : %s ", sprint_hex(data + 9, 1));
        
        memcpy(datatemp, data+10, 2);
        
        memcpy(datatemp, data+10, 2);
-       PrintAndLog("        Lock : %s - %s", sprint_hex(datatemp, 2),printBits( 2, &datatemp) );
-       PrintAndLog("  OneTimePad : %s ", sprint_hex(data + 3*4, 4));
+       PrintAndLog("      Lock : %s - %s", sprint_hex(datatemp, 2),printBits( 2, &datatemp) );
+       PrintAndLog("OneTimePad : %s ", sprint_hex(data + 3*4, 4));
        PrintAndLog("");
        PrintAndLog("");
-
-       int len = CmdHF14AMfucAuth("K 0");
-//     PrintAndLog("CODE: %d",len);
-// Fix reading UL-C 's password higher blocks.
-       
-       PrintAndLog("Seems to be a Ultralight %s", (len==0) ? "-C" :"");
        
        
        
        
+       PrintAndLog("--- ");
+       if ( (tagtype & UL_C) == UL_C || (tagtype & UL_C_MAGIC) == UL_C_MAGIC   ){
+               
+               PrintAndLog("Trying some default 3des keys");
+               uint8_t *key;
+               
+               for (uint8_t i = 0; i < 5; ++i ){
+                       key = default_3des_keys[i];
+                       if (try3DesAuthentication(key)){
+                               PrintAndLog("Found default 3des key: %s", sprint_hex(key,16));
+                               return 0;
+                       }
+               }               
+       }
+       else if (
+               (tagtype & UL_EV1_48) == UL_EV1_48 ||
+               (tagtype & UL_EV1_128) == UL_EV1_128 
+               ) {
+               PrintAndLog("Trying some known EV1 passwords.");
+       }
        return 0;
 }
 
        return 0;
 }
 
@@ -105,7 +218,7 @@ int CmdHF14AMfUWrBl(const char *Cmd){
        
        blockNo = param_get8(Cmd, 0);
 
        
        blockNo = param_get8(Cmd, 0);
 
-       if (blockNo > MAX_ULTRA_BLOCKS){
+       if (blockNo > MAX_UL_BLOCKS){
                PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight Cards!");
                return 1;
        }
                PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight Cards!");
                return 1;
        }
@@ -168,7 +281,7 @@ int CmdHF14AMfURdBl(const char *Cmd){
                
        blockNo = param_get8(Cmd, 0);
 
                
        blockNo = param_get8(Cmd, 0);
 
-       if (blockNo > MAX_ULTRA_BLOCKS){
+       if (blockNo > MAX_UL_BLOCKS){
           PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight");
           return 1;
        }
           PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight");
           return 1;
        }
@@ -377,30 +490,21 @@ void rol (uint8_t *data, const size_t len){
 //
 int CmdHF14AMfucAuth(const char *Cmd){
 
 //
 int CmdHF14AMfucAuth(const char *Cmd){
 
-       uint8_t default_keys[7][16] = {
-               { 0x42,0x52,0x45,0x41,0x4b,0x4d,0x45,0x49,0x46,0x59,0x4f,0x55,0x43,0x41,0x4e,0x21 },// 3des std key
-               { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },// all zeroes
-               { 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f },// 0x00-0x0F
-               { 0x49,0x45,0x4D,0x4B,0x41,0x45,0x52,0x42,0x21,0x4E,0x41,0x43,0x55,0x4F,0x59,0x46 },// NFC-key
-               { 0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01 },// all ones
-               { 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF },// all FF
-               { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF }     // 11 22 33
-       };
-
-       char cmdp = param_getchar(Cmd, 0);
-       
        uint8_t keyNo = 0;
        bool errors = false;
        uint8_t keyNo = 0;
        bool errors = false;
+
+       char cmdp = param_getchar(Cmd, 0);
+
        //Change key to user defined one
        if (cmdp == 'k' || cmdp == 'K'){
                keyNo = param_get8(Cmd, 1);
        //Change key to user defined one
        if (cmdp == 'k' || cmdp == 'K'){
                keyNo = param_get8(Cmd, 1);
-               if(keyNo > 6) errors = true;
+               if(keyNo > 6) 
+                       errors = true;
        }
 
        }
 
-       if (cmdp == 'h' || cmdp == 'H') {
+       if (cmdp == 'h' || cmdp == 'H')
                errors = true;
                errors = true;
-       }
-
+       
        if (errors) {
                PrintAndLog("Usage:  hf mfu cauth k <key number>");
                PrintAndLog("      0 (default): 3DES standard key");
        if (errors) {
                PrintAndLog("Usage:  hf mfu cauth k <key number>");
                PrintAndLog("      0 (default): 3DES standard key");
@@ -415,109 +519,78 @@ int CmdHF14AMfucAuth(const char *Cmd){
                return 0;
        } 
 
                return 0;
        } 
 
-       uint8_t random_a[8]     = { 1,1,1,1,1,1,1,1 };
-       //uint8_t enc_random_a[8] = { 0 };
-       uint8_t random_b[8]     = { 0 };
-       uint8_t enc_random_b[8] = { 0 };
-       uint8_t random_a_and_b[16] = { 0 };
-       des3_context ctx        = { 0 };
-       uint8_t *key = default_keys[keyNo];
+       uint8_t *key = default_3des_keys[keyNo];
+       if (try3DesAuthentication(key))
+               PrintAndLog("Authentication successful. 3des key: %s",sprint_hex(key, 8));
+       else
+               PrintAndLog("Authentication failed");
+                       
+       return 0;
+}
+
+int try3DesAuthentication( uint8_t *key){
+       
        uint8_t blockNo = 0;
        uint32_t cuid = 0;
 
        uint8_t blockNo = 0;
        uint32_t cuid = 0;
 
-       //Auth1
+       des3_context ctx = { 0 };
+       
+       uint8_t random_a[8] = { 1,1,1,1,1,1,1,1 };
+       uint8_t random_b[8] = { 0 };
+       uint8_t enc_random_b[8] = { 0 };
+       uint8_t rnd_ab[16] = { 0 };
+       uint8_t iv[8] = { 0 };
+
        UsbCommand c = {CMD_MIFAREUC_AUTH1, {blockNo}};
        SendCommand(&c);
        UsbCommand resp;
        UsbCommand c = {CMD_MIFAREUC_AUTH1, {blockNo}};
        SendCommand(&c);
        UsbCommand resp;
-       if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-               uint8_t isOK  = resp.arg[0] & 0xff;
-               cuid  = resp.arg[1];
-               uint8_t * data= resp.d.asBytes;
-
-               if (isOK){
-                       memcpy(enc_random_b,data+1,8);
-               } else {
-                       PrintAndLog("Auth failed");
-                       return 2;
-               }               
-       } else {
-               PrintAndLog("Command execute timeout");
-               return 1;
-       }
-       uint8_t iv[8]           = { 0 };
-
-       PrintAndLog("     RndA  :%s",sprint_hex(random_a, 8));
-       PrintAndLog("     enc(RndB):%s",sprint_hex(enc_random_b, 8));
+       if ( !WaitForResponseTimeout(CMD_ACK, &resp, 1500) )    return -1;
+       if ( !(resp.arg[0] & 0xff) ) return -2;
+       
+       cuid  = resp.arg[1];    
+       memcpy(enc_random_b,resp.d.asBytes+1,8);
 
        des3_set2key_dec(&ctx, key);
 
        des3_set2key_dec(&ctx, key);
-
-       des3_crypt_cbc(&ctx      // des3_context *ctx
-               , DES_DECRYPT        // int mode
-               , sizeof(random_b)   // size_t length
-               , iv                 // unsigned char iv[8]
-               , enc_random_b       // const unsigned char *input
-               , random_b           // unsigned char *output
-               );
-
-       PrintAndLog("     RndB:%s",sprint_hex(random_b, 8));
+       // context, mode, length, IV, input, output 
+       des3_crypt_cbc( &ctx, DES_DECRYPT, sizeof(random_b), iv , enc_random_b , random_b);
 
        rol(random_b,8);
 
        rol(random_b,8);
-       memcpy(random_a_and_b  ,random_a,8);
-       memcpy(random_a_and_b+8,random_b,8);
-       
-       PrintAndLog("     A+B:%s",sprint_hex(random_a_and_b, 16));
+       memcpy(rnd_ab  ,random_a,8);
+       memcpy(rnd_ab+8,random_b,8);
 
        des3_set2key_enc(&ctx, key);
 
        des3_set2key_enc(&ctx, key);
-
-       des3_crypt_cbc(&ctx          // des3_context *ctx
-               , DES_ENCRYPT            // int mode
-               , sizeof(random_a_and_b)   // size_t length
-               , enc_random_b           // unsigned char iv[8]
-               , random_a_and_b         // const unsigned char *input
-               , random_a_and_b         // unsigned char *output
-               );
-
-       PrintAndLog("enc(A+B):%s",sprint_hex(random_a_and_b, 16));
+       // context, mode, length, IV, input, output 
+       des3_crypt_cbc(&ctx, DES_ENCRYPT, sizeof(rnd_ab), enc_random_b, rnd_ab, rnd_ab);
 
        //Auth2
 
        //Auth2
-       UsbCommand d = {CMD_MIFAREUC_AUTH2, {cuid}};
-       memcpy(d.d.asBytes,random_a_and_b, 16);
-       SendCommand(&d);
-
-       UsbCommand respb;
-       if (WaitForResponseTimeout(CMD_ACK,&respb,1500)) {
-               uint8_t  isOK  = respb.arg[0] & 0xff;
-               uint8_t * data2= respb.d.asBytes;
+       c.cmd = CMD_MIFAREUC_AUTH2;
+       c.arg[0] = cuid;
+       memcpy(c.d.asBytes, rnd_ab, 16);
+       SendCommand(&c);
 
 
-               if (isOK){
-                       PrintAndLog("enc(RndA'):%s", sprint_hex(data2+1, 8));
-                       
-                       uint8_t foo[8] = { 0 };
-                       uint8_t bar[8] = { 0 };
-                       memcpy(foo, data2+1, 8);
-                       des3_set2key_dec(&ctx, key);
-
-                       des3_crypt_cbc(&ctx    // des3_context *ctx
-                               , DES_DECRYPT      // int mode
-                               , 8      // size_t length
-                               , enc_random_b     // unsigned char iv[8]
-                               , foo           // const unsigned char *input
-                               , bar   // unsigned char *output
-                       );
+       if ( !WaitForResponseTimeout(CMD_ACK, &resp, 1500)) return -1;                          
+       if ( !(resp.arg[0] & 0xff)) return -2;
+       
+       uint8_t enc_resp[8] = { 0 };
+       uint8_t resp_random_a[8] = { 0 };
+       memcpy(enc_resp, resp.d.asBytes+1, 8);
 
 
-                       PrintAndLog("--> : %s  : <-- Should be equal to our RndA",sprint_hex(bar, 8));
+       des3_set2key_dec(&ctx, key);
+       // context, mode, length, IV, input, output
+       des3_crypt_cbc( &ctx, DES_DECRYPT, 8, enc_random_b, enc_resp, resp_random_a);
 
 
-                       
-               } else {
-                       return 2;
-               }
-               
-       } else {
-               PrintAndLog("Command execute timeout");
-               return 1;
-       } 
+       if ( !memcmp(resp_random_a, random_a, 8))
+               return 1;       
        return 0;
        return 0;
+       
+       //PrintAndLog("      RndA  :%s", sprint_hex(random_a, 8));
+       //PrintAndLog("  enc(RndB) :%s", sprint_hex(enc_random_b, 8));
+       //PrintAndLog("       RndB :%s", sprint_hex(random_b, 8));
+       //PrintAndLog("        A+B :%s", sprint_hex(random_a_and_b, 16));
+       //PrintAndLog("   enc(A+B) :%s", sprint_hex(random_a_and_b, 16));
+       //PrintAndLog(" enc(RndA') :%s", sprint_hex(data2+1, 8));
 }
 }
+
 /**
 A test function to validate that the polarssl-function works the same 
 was as the openssl-implementation. 
 /**
 A test function to validate that the polarssl-function works the same 
 was as the openssl-implementation. 
@@ -639,7 +712,7 @@ int CmdHF14AMfUCRdBl(const char *Cmd)
                return 1;
        }
        
                return 1;
        }
        
-       if (blockNo > MAX_ULTRAC_BLOCKS ){
+       if (blockNo > MAX_ULC_BLOCKS ){
                PrintAndLog("Error: Maximum number of blocks is 47 for Ultralight-C");
                return 1;
        } 
                PrintAndLog("Error: Maximum number of blocks is 47 for Ultralight-C");
                return 1;
        } 
@@ -701,7 +774,7 @@ int CmdHF14AMfUCWrBl(const char *Cmd){
        }
        
        blockNo = param_get8(Cmd, 0);
        }
        
        blockNo = param_get8(Cmd, 0);
-       if (blockNo > MAX_ULTRAC_BLOCKS ){
+       if (blockNo > MAX_ULC_BLOCKS ){
                PrintAndLog("Error: Maximum number of blocks is 47 for Ultralight-C Cards!");
                return 1;
        }
                PrintAndLog("Error: Maximum number of blocks is 47 for Ultralight-C Cards!");
                return 1;
        }
@@ -797,12 +870,15 @@ int CmdHF14AMfucSetPwd(const char *Cmd){
 //
 int CmdHF14AMfucSetUid(const char *Cmd){
 
 //
 int CmdHF14AMfucSetUid(const char *Cmd){
 
+       UsbCommand c;
+       UsbCommand resp;
        uint8_t uid[7] = {0x00};
        char cmdp = param_getchar(Cmd, 0);
        
        if (strlen(Cmd) == 0  || cmdp == 'h' || cmdp == 'H') {  
                PrintAndLog("Usage:  hf mfu setuid <uid (14 hex symbols)>");
                PrintAndLog("       [uid] - (14 hex symbols)");
        uint8_t uid[7] = {0x00};
        char cmdp = param_getchar(Cmd, 0);
        
        if (strlen(Cmd) == 0  || cmdp == 'h' || cmdp == 'H') {  
                PrintAndLog("Usage:  hf mfu setuid <uid (14 hex symbols)>");
                PrintAndLog("       [uid] - (14 hex symbols)");
+               PrintAndLog("\nThis only works for Magic Ultralight tags.");
                PrintAndLog("");
                PrintAndLog("sample: hf mfu setuid 11223344556677");
                PrintAndLog("");
                PrintAndLog("");
                PrintAndLog("sample: hf mfu setuid 11223344556677");
                PrintAndLog("");
@@ -810,27 +886,60 @@ int CmdHF14AMfucSetUid(const char *Cmd){
        }
        
        if (param_gethex(Cmd, 0, uid, 14)) {
        }
        
        if (param_gethex(Cmd, 0, uid, 14)) {
-               PrintAndLog("Password must include 14 HEX symbols");
+               PrintAndLog("UID must include 14 HEX symbols");
                return 1;
        }
 
                return 1;
        }
 
-       UsbCommand c = {CMD_MIFAREU_SETUID};    
-       memcpy( c.d.asBytes, uid, 14);
+       // read block2. 
+       c.cmd = CMD_MIFAREU_READBL;
+       c.arg[0] = 2;
        SendCommand(&c);
        SendCommand(&c);
-
-       UsbCommand resp;        
-       if (WaitForResponseTimeout(CMD_ACK,&resp,1500) ) {
-               if ( (resp.arg[0] & 0xff) == 1)
-                       PrintAndLog("New UID: %s", sprint_hex(uid,14));
-               else{
-                       PrintAndLog("Failed writing new uid");
-                       return 1;
-               }
+       if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+               PrintAndLog("Command execute timeout");
+               return 2;
        }
        }
-       else {
-               PrintAndLog("command execution time out");
-               return 1;
+       
+       // save old block2.
+       uint8_t oldblock2[4] = {0x00};
+       memcpy(resp.d.asBytes, oldblock2, 4);
+       
+       // block 0.
+       c.cmd = CMD_MIFAREU_WRITEBL;
+       c.arg[0] = 0;
+       c.d.asBytes[0] = uid[0];
+       c.d.asBytes[1] = uid[1];
+       c.d.asBytes[2] = uid[2];
+       c.d.asBytes[3] =  0x88 ^ uid[0] ^ uid[1] ^ uid[2];
+       SendCommand(&c);
+       if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+               PrintAndLog("Command execute timeout");
+               return 3;
+       }
+       
+       // block 1.
+       c.arg[0] = 1;
+       c.d.asBytes[0] = uid[3];
+       c.d.asBytes[1] = uid[4];
+       c.d.asBytes[2] = uid[5];
+       c.d.asBytes[3] = uid[6];
+       SendCommand(&c);
+       if (!WaitForResponseTimeout(CMD_ACK,&resp,1500) ) {
+               PrintAndLog("Command execute timeout");
+               return 4;
+       }
+
+       // block 2.
+       c.arg[0] = 2;
+       c.d.asBytes[0] = uid[3] ^ uid[4] ^ uid[5] ^ uid[6];
+       c.d.asBytes[1] = oldblock2[1];
+       c.d.asBytes[2] = oldblock2[2];
+       c.d.asBytes[3] = oldblock2[3];
+       SendCommand(&c);
+       if (!WaitForResponseTimeout(CMD_ACK,&resp,1500) ) {
+               PrintAndLog("Command execute timeout");
+               return 5;
        }
        }
+       
        return 0;
 }
 
        return 0;
 }
 
@@ -839,17 +948,24 @@ int CmdHF14AMfuGenDiverseKeys(const char *Cmd){
        uint8_t iv[8] = { 0x00 };
        uint8_t block = 0x07;
        
        uint8_t iv[8] = { 0x00 };
        uint8_t block = 0x07;
        
+       // UL-EV1
+       //04 57 b6 e2 05 3f 80 UID
+       //4a f8 4b 19   PWD
        uint8_t uid[] = { 0xF4,0xEA, 0x54, 0x8E };
        uint8_t uid[] = { 0xF4,0xEA, 0x54, 0x8E };
-       uint8_t mifarekey[] = { 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5 };
+       uint8_t mifarekeyA[] = { 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5 };
+       uint8_t mifarekeyB[] = { 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5 };
+       uint8_t dkeyA[8] = { 0x00 };
+       uint8_t dkeyB[8] = { 0x00 };
+       
        uint8_t masterkey[] = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xdd,0xee,0xff };
        
        uint8_t mix[8] = { 0x00 };
        uint8_t divkey[8] = { 0x00 };
        
        uint8_t masterkey[] = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xdd,0xee,0xff };
        
        uint8_t mix[8] = { 0x00 };
        uint8_t divkey[8] = { 0x00 };
        
-       memcpy(mix, mifarekey, 4);
+       memcpy(mix, mifarekeyA, 4);
        
        
-       mix[4] = mifarekey[4] ^ uid[0];
-       mix[5] = mifarekey[5] ^ uid[1];
+       mix[4] = mifarekeyA[4] ^ uid[0];
+       mix[5] = mifarekeyA[5] ^ uid[1];
        mix[6] = block ^ uid[2];
        mix[7] = uid[3];
        
        mix[6] = block ^ uid[2];
        mix[7] = uid[3];
        
@@ -868,14 +984,50 @@ int CmdHF14AMfuGenDiverseKeys(const char *Cmd){
        PrintAndLog("Masterkey    :\t %s", sprint_hex(masterkey,sizeof(masterkey)));
        PrintAndLog("UID          :\t %s", sprint_hex(uid, sizeof(uid)));
        PrintAndLog("Sector       :\t %0d", block);
        PrintAndLog("Masterkey    :\t %s", sprint_hex(masterkey,sizeof(masterkey)));
        PrintAndLog("UID          :\t %s", sprint_hex(uid, sizeof(uid)));
        PrintAndLog("Sector       :\t %0d", block);
-       PrintAndLog("Mifare key   :\t %s", sprint_hex(mifarekey, sizeof(mifarekey)));
+       PrintAndLog("Mifare key   :\t %s", sprint_hex(mifarekeyA, sizeof(mifarekeyA)));
        PrintAndLog("Message      :\t %s", sprint_hex(mix, sizeof(mix)));
        PrintAndLog("Diversified key: %s", sprint_hex(divkey+1, 6));
                
        PrintAndLog("Message      :\t %s", sprint_hex(mix, sizeof(mix)));
        PrintAndLog("Diversified key: %s", sprint_hex(divkey+1, 6));
                
+       PrintAndLog("\n DES version");
+       
+       for (int i=0; i < sizeof(mifarekeyA); ++i){
+               dkeyA[i] = (mifarekeyA[i] << 1) & 0xff;
+               dkeyA[6] |=  ((mifarekeyA[i] >> 7) & 1) << (i+1);
+       }
+       
+       for (int i=0; i < sizeof(mifarekeyB); ++i){
+               dkeyB[1] |=  ((mifarekeyB[i] >> 7) & 1) << (i+1);
+               dkeyB[2+i] = (mifarekeyB[i] << 1) & 0xff;
+       }
+       
+       uint8_t zeros[8] = {0x00};
+       uint8_t newpwd[8] = {0x00};
+       uint8_t dmkey[24] = {0x00};
+       memcpy(dmkey, dkeyA, 8);
+       memcpy(dmkey+8, dkeyB, 8);
+       memcpy(dmkey+16, dkeyA, 8);
+       memset(iv, 0x00, 8);
+       
+       des3_set3key_enc(&ctx, dmkey);
+
+       des3_crypt_cbc(&ctx  // des3_context
+               , DES_ENCRYPT    // int mode
+               , sizeof(newpwd) // length
+               , iv             // iv[8]
+               , zeros         // input
+               , newpwd         // output
+               );
+       
+       PrintAndLog("Mifare dkeyA :\t %s", sprint_hex(dkeyA, sizeof(dkeyA)));
+       PrintAndLog("Mifare dkeyB :\t %s", sprint_hex(dkeyB, sizeof(dkeyB)));
+       PrintAndLog("Mifare ABA   :\t %s", sprint_hex(dmkey, sizeof(dmkey)));
+       PrintAndLog("Mifare Pwd   :\t %s", sprint_hex(newpwd, sizeof(newpwd)));
+       
        return 0;
 }
 
        return 0;
 }
 
-// uint8_t * diversify_key(uint8_t * key){
+// static uint8_t * diversify_key(uint8_t * key){
+       
  // for(int i=0; i<16; i++){
    // if(i<=6) key[i]^=cuid[i];
    // if(i>6) key[i]^=cuid[i%7];
  // for(int i=0; i<16; i++){
    // if(i<=6) key[i]^=cuid[i];
    // if(i>6) key[i]^=cuid[i%7];
@@ -904,10 +1056,9 @@ static command_t CommandTable[] =
        {"crdbl",       CmdHF14AMfUCRdBl,       0,"Read block  - MIFARE Ultralight C"},
        {"cwrbl",       CmdHF14AMfUCWrBl,       0,"Write block - MIFARE Ultralight C"},
        {"cauth",       CmdHF14AMfucAuth,       0,"Ultralight C Authentication"},
        {"crdbl",       CmdHF14AMfUCRdBl,       0,"Read block  - MIFARE Ultralight C"},
        {"cwrbl",       CmdHF14AMfUCWrBl,       0,"Write block - MIFARE Ultralight C"},
        {"cauth",       CmdHF14AMfucAuth,       0,"Ultralight C Authentication"},
-       //{"testdes", CmdTestDES ,        1, "Test DES"},
-       {"setpwd", CmdHF14AMfucSetPwd , 1, "Set 3des password [Ultralight-C only]"},
-       {"setuid", CmdHF14AMfucSetUid , 1, "Set UID"},
-       {"gen", CmdHF14AMfuGenDiverseKeys , 1, "Generate 3des mifare diversified keys"},
+       {"setpwd",      CmdHF14AMfucSetPwd , 1, "Set 3des password [Ultralight-C only]"},
+       {"setuid",      CmdHF14AMfucSetUid , 1, "Set UID"},
+       {"gen",         CmdHF14AMfuGenDiverseKeys , 1, "Generate 3des mifare diversified keys"},
        {NULL, NULL, 0, NULL}
 };
 
        {NULL, NULL, 0, NULL}
 };
 
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