git.zerfleddert.de Git - proxmark3-svn/blob - client/cmdhfmfdesfire.c

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2014 Andy Davies
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // High frequency MIFARE commands
   9 //-----------------------------------------------------------------------------
  10
  11 #include "cmdhfmf.h"
  12 #include "util.h"
  13 #include <openssl/des.h>
  14 #include <openssl/aes.h>
  15
  16 static int CmdHelp(const char *Cmd);
  17
  18 //DESFIRE
  19 // Reader 2 Card : 020A, key (1 byte), CRC1 CRC2 ; auth (020a00)
  20 // Card 2 Reader : 02AF, 8 Bytes(b0), CRC1 CRC2
  21 // Reader 2 Card : 03AF, 8 Bytes(b1),8 bytes(b2), CRC1 CRC2
  22 // Card 2 Reader : 0300, 8 bytes(b3), CRC1 CRC2 ; success
  23
  24 //send 020A00, receive enc(nc)
  25
  26 //02AE = error
  27 //receive b3=enc(r4)
  28 //r5=dec(b3)
  29 //n'r=rol(r5)
  30 //verify n'r=nr
  31
  32 int CmdHF14AMfDESAuth(const char *Cmd){
  33
  34     uint8_t blockNo = 0;
  35     //keyNo=0;
  36     uint32_t cuid=0;
  37     uint8_t reply[16];
  38     //DES_cblock r1_b1;
  39     uint8_t b1[8]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
  40     uint8_t b2[8]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
  41     DES_cblock nr,  b0, r1, r0;
  42
  43
  44     uint8_t key[8]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
  45     //DES_cblock iv={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
  46     DES_key_schedule ks1;
  47     DES_cblock key1;
  48
  49     if (strlen(Cmd)<1) {
  50         PrintAndLog("Usage:  hf desfire des-auth k <key number>");
  51         PrintAndLog("        sample: hf desfire des-auth k 0");
  52         return 0;
  53     }
  54
  55     //Change key to user defined one
  56
  57     memcpy(key1,key,8);
  58     //memcpy(key2,key+8,8);
  59     DES_set_key((DES_cblock *)key1,&ks1);
  60     //DES_set_key((DES_cblock *)key2,&ks2);
  61
  62     //Auth1
  63     UsbCommand c = {CMD_MIFARE_DES_AUTH1, {blockNo}};
  64     SendCommand(&c);
  65     UsbCommand resp;
  66     if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
  67         uint8_t isOK  = resp.arg[0] & 0xff;
  68                 cuid  = resp.arg[1];
  69         uint8_t * data= resp.d.asBytes;
  70
  71          if (isOK){
  72              PrintAndLog("enc(nc)/b0:%s", sprint_hex(data+2,8));
  73              memcpy(b0,data+2,8);
  74         }
  75     } else {
  76         PrintAndLog("Command execute timeout");
  77     }
  78
  79     //Do crypto magic
  80     DES_random_key(&nr);
  81     //b1=dec(nr)
  82     //r0=dec(b0)
  83     DES_ecb_encrypt(&nr,&b1,&ks1,0);
  84     DES_ecb_encrypt(&b0,&r0,&ks1,0);
  85     //PrintAndLog("b1:%s",sprint_hex(b1, 8));
  86     PrintAndLog("r0:%s",sprint_hex(r0, 8));
  87     //r1=rol(r0)
  88     memcpy(r1,r0,8);
  89     rol(r1,8);
  90     PrintAndLog("r1:%s",sprint_hex(r1, 8));
  91     for(int i=0;i<8;i++){
  92       b2[i]=(r1[i] ^ b1[i]);
  93     }
  94     DES_ecb_encrypt(&b2,&b2,&ks1,0);
  95     //PrintAndLog("b1:%s",sprint_hex(b1, 8));
  96     PrintAndLog("b2:%s",sprint_hex(b2, 8));
  97
  98     //Auth2
  99     UsbCommand d = {CMD_MIFARE_DES_AUTH2, {cuid}};
 100     memcpy(reply,b1,8);
 101     memcpy(reply+8,b2,8);
 102     memcpy(d.d.asBytes,reply, 16);
 103     SendCommand(&d);
 104
 105     UsbCommand respb;
 106     if (WaitForResponseTimeout(CMD_ACK,&respb,1500)) {
 107         uint8_t  isOK  = respb.arg[0] & 0xff;
 108         uint8_t * data2= respb.d.asBytes;
 109
 110         if (isOK){
 111             PrintAndLog("b3:%s", sprint_hex(data2+2, 8));
 112         }
 113
 114     } else {
 115         PrintAndLog("Command execute timeout");
 116     }
 117     return 1;
 118 }
 119
 120 //EV1
 121 // Reader 2 Card : 02AA, key (1 byte), CRC1 CRC2 ; auth
 122 // Card 2 Reader : 02AF, 16 Bytes(b0), CRC1 CRC2
 123 // Reader 2 Card : 03AF, 16 Bytes(b1),16Bytes(b2) CRC1 CRC2
 124 // Card 2 Reader : 0300, 16 bytes(b3), CRC1 CRC2 ; success
 125 int CmdHF14AMfAESAuth(const char *Cmd){
 126
 127     uint8_t blockNo = 0;
 128     //keyNo=0;
 129     uint32_t cuid=0;
 130     uint8_t reply[32];
 131     //DES_cblock r1_b1;
 132     //unsigned char * b1, b2, nr, b0, r0, r1;
 133
 134     uint8_t b1[16]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
 135     uint8_t b2[16]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
 136     uint8_t nr[16]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
 137     uint8_t b0[16]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
 138     uint8_t r0[16]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
 139     uint8_t r1[16]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
 140     //
 141     uint8_t key[16]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
 142     uint8_t iv[16]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
 143     AES_KEY key_e;
 144     AES_KEY key_d;
 145
 146     if (strlen(Cmd)<1) {
 147         PrintAndLog("Usage:  hf desfire aes-auth k <key number>");
 148         PrintAndLog("        sample: hf desfire aes-auth k 0");
 149         return 0;
 150     }
 151
 152     //Change key to user defined one
 153     //
 154     // int private_AES_set_encrypt_key(const unsigned char *userKey, const int bits,AES_KEY *key);
 155      //int private_AES_set_decrypt_key(const unsigned char *userKey, const int bits,AES_KEY *key);
 156         //
 157     //memcpy(key1,key,16);
 158     //memcpy(key2,key+8,8);
 159     AES_set_encrypt_key(key,128,&key_e);
 160     AES_set_decrypt_key(key,128,&key_d);
 161
 162     //Auth1
 163     UsbCommand c = {CMD_MIFARE_DES_AUTH1, {blockNo}};
 164     SendCommand(&c);
 165     UsbCommand resp;
 166     if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
 167         uint8_t isOK  = resp.arg[0] & 0xff;
 168                 cuid  = resp.arg[1];
 169         uint8_t * data= resp.d.asBytes;
 170
 171          if (isOK){
 172              PrintAndLog("enc(nc)/b0:%s", sprint_hex(data+2,16));
 173              memcpy(b0,data+2,16);
 174         }
 175     } else {
 176         PrintAndLog("Command execute timeout");
 177     }
 178     //
 179     // void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
 180         //size_t length, const AES_KEY *key,
 181         //unsigned char *ivec, const int enc);
 182
 183    //Do crypto magic
 184     //DES_random_key(&nr);
 185     //b1=dec(nr)
 186     //r0=dec(b0)
 187     //AES_cbc_encrypt(&nr,&b1,16,&key,0);
 188     AES_cbc_encrypt(&b0,&r0,16,&key_d,iv,0);
 189     //PrintAndLog("b1:%s",sprint_hex(b1, 8));
 190     PrintAndLog("r0:%s",sprint_hex(r0, 16));
 191     //r1=rol(r0)
 192     memcpy(r1,r0,16);
 193     rol(r1,8);
 194     PrintAndLog("r1:%s",sprint_hex(r1, 16));
 195     for(int i=0;i<16;i++){
 196       b1[i]=(nr[i] ^ b0[i]);
 197       b2[i]=(r1[i] ^ b1[i]);
 198     }
 199     PrintAndLog("nr:%s",sprint_hex(nr, 16));
 200     AES_cbc_encrypt(&b1,&b1,16,&key_e,iv,1);
 201     AES_cbc_encrypt(&b2,&b2,16,&key_e,iv,1);
 202     PrintAndLog("b1:%s",sprint_hex(b1, 16));
 203     PrintAndLog("b2:%s",sprint_hex(b2, 16));
 204
 205     //Auth2
 206     UsbCommand d = {CMD_MIFARE_DES_AUTH2, {cuid}};
 207     memcpy(reply,b1,16);
 208     memcpy(reply+16,b2,16);
 209     memcpy(d.d.asBytes,reply, 32);
 210     SendCommand(&d);
 211
 212     UsbCommand respb;
 213     if (WaitForResponseTimeout(CMD_ACK,&respb,1500)) {
 214         uint8_t  isOK  = respb.arg[0] & 0xff;
 215         uint8_t * data2= respb.d.asBytes;
 216
 217         if (isOK){
 218             PrintAndLog("b3:%s", sprint_hex(data2+2, 16));
 219         }
 220
 221     } else {
 222         PrintAndLog("Command execute timeout");
 223     }
 224     return 1;
 225 }
 226
 227
 228 //------------------------------------
 229 // Menu Stuff
 230 //------------------------------------
 231 static command_t CommandTable[] =
 232 {
 233     {"help",    CmdHelp,                1,"This help"},
 234     {"dbg",     CmdHF14AMfDbg,          0,"Set default debug mode"},
 235     {"des-auth",CmdHF14AMfDESAuth,      0,"Desfire Authentication"},
 236     {"ev1-auth",CmdHF14AMfAESAuth,      0,"EV1 Authentication"},
 237     {NULL, NULL, 0, NULL}
 238 };
 239
 240 int CmdHFMFDesfire(const char *Cmd){
 241     // flush
 242     WaitForResponseTimeout(CMD_ACK,NULL,100);
 243     CmdsParse(CommandTable, Cmd);
 244     return 0;
 245 }
 246
 247 int CmdHelp(const char *Cmd){
 248     CmdsHelp(CommandTable);
 249     return 0;
 250 }