git.zerfleddert.de Git - proxmark3-svn/blob - armsrc/mifarecmd.c

   1 //-----------------------------------------------------------------------------
   2 // Merlok - June 2011, 2012
   3 // Gerhard de Koning Gans - May 2008
   4 // Hagen Fritsch - June 2010
   5 // Midnitesnake - Dec 2013
   6 // Andy Davies  - Apr 2014
   7 // Iceman - May 2014
   8 //
   9 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
  10 // at your option, any later version. See the LICENSE.txt file for the text of
  11 // the license.
  12 //-----------------------------------------------------------------------------
  13 // Routines to support ISO 14443 type A.
  14 //-----------------------------------------------------------------------------
  15
  16 #include "mifarecmd.h"
  17 #include "apps.h"
  18 #include "util.h"
  19 //#include "../client/loclass/des.h"
  20 #include "des.h"
  21 #include "crc.h"
  22
  23 //-----------------------------------------------------------------------------
  24 // Select, Authenticate, Read a MIFARE tag.
  25 // read block
  26 //-----------------------------------------------------------------------------
  27 void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
  28 {
  29   // params
  30         uint8_t blockNo = arg0;
  31         uint8_t keyType = arg1;
  32         uint64_t ui64Key = 0;
  33         ui64Key = bytes_to_num(datain, 6);
  34
  35         // variables
  36         byte_t isOK = 0;
  37         byte_t dataoutbuf[16];
  38         uint8_t uid[10];
  39         uint32_t cuid;
  40         struct Crypto1State mpcs = {0, 0};
  41         struct Crypto1State *pcs;
  42         pcs = &mpcs;
  43
  44         // clear trace
  45         clear_trace();
  46         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
  47
  48         LED_A_ON();
  49         LED_B_OFF();
  50         LED_C_OFF();
  51
  52         while (true) {
  53                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
  54                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
  55                         break;
  56                 };
  57
  58                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
  59                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
  60                         break;
  61                 };
  62
  63                 if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {
  64                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read block error");
  65                         break;
  66                 };
  67
  68                 if(mifare_classic_halt(pcs, cuid)) {
  69                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
  70                         break;
  71                 };
  72
  73                 isOK = 1;
  74                 break;
  75         }
  76
  77         //  ----------------------------- crypto1 destroy
  78         crypto1_destroy(pcs);
  79
  80         if (MF_DBGLEVEL >= 2)   DbpString("READ BLOCK FINISHED");
  81
  82         LED_B_ON();
  83         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
  84         LED_B_OFF();
  85
  86         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
  87         LEDsoff();
  88 }
  89
  90
  91 void MifareUC_Auth1(uint8_t arg0, uint8_t *datain){
  92
  93         byte_t dataoutbuf[16] = {0x00};
  94         uint8_t uid[10] = {0x00};
  95         uint32_t cuid = 0x00;
  96
  97         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
  98
  99         clear_trace();
 100         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 101
 102         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 103                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");
 104                 OnError(0);
 105                 return;
 106         };
 107
 108         if(mifare_ultra_auth1(dataoutbuf)){
 109                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part1: Fail.");
 110                 OnError(1);
 111                 return;
 112         }
 113
 114         if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");
 115
 116     cmd_send(CMD_ACK,1,cuid,0,dataoutbuf,11);
 117         LEDsoff();
 118 }
 119 void MifareUC_Auth2(uint32_t arg0, uint8_t *datain){
 120
 121         uint8_t key[16] = {0x00};
 122         byte_t dataoutbuf[16] = {0x00};
 123
 124         memcpy(key, datain, 16);
 125
 126         LED_A_ON();     LED_B_OFF(); LED_C_OFF();
 127
 128         if(mifare_ultra_auth2(key, dataoutbuf)){
 129             if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part2: Fail...");
 130                 OnError(1);
 131                 return;
 132         }
 133
 134         if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 2 FINISHED");
 135
 136         cmd_send(CMD_ACK,1,0,0,dataoutbuf,11);
 137         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 138         LEDsoff();
 139 }
 140
 141 void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
 142 {
 143         uint8_t blockNo = arg0;
 144         byte_t dataout[16] = {0x00};
 145         uint8_t uid[10] = {0x00};
 146         uint8_t key[16] = {0x00};
 147     bool usePwd = (arg1 == 1);
 148
 149         LED_A_ON();     LED_B_OFF(); LED_C_OFF();
 150
 151         clear_trace();
 152         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 153
 154         int len = iso14443a_select_card(uid, NULL, NULL);
 155         if(!len) {
 156                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len);
 157                 OnError(1);
 158                 return;
 159         }
 160
 161          // authenticate here.
 162         if ( usePwd ) {
 163
 164                 memcpy(key, datain, 16);
 165
 166                 uint8_t random_a[8] = {1,1,1,1,1,1,1,1 };
 167                 uint8_t random_b[8] = {0x00};
 168                 uint8_t enc_random_b[8] = {0x00};
 169                 uint8_t rnd_ab[16] = {0x00};
 170                 uint8_t IV[8] = {0x00};
 171
 172                 uint16_t len;
 173                 uint8_t receivedAnswer[MAX_FRAME_SIZE];
 174                 uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
 175
 176                 len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, receivedAnswer,receivedAnswerPar ,NULL);
 177                 if (len != 11) {
 178                         if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
 179                         OnError(1);
 180                         return;
 181                 }
 182
 183                 // tag nonce.
 184                 memcpy(enc_random_b,receivedAnswer+1,8);
 185
 186                 // decrypt nonce.
 187                 tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );
 188
 189
 190                 rol(random_b,8);
 191
 192                 memcpy(rnd_ab  ,random_a,8);
 193                 memcpy(rnd_ab+8,random_b,8);
 194
 195                 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
 196                         Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x",
 197                                 enc_random_b[0],enc_random_b[1],enc_random_b[2],enc_random_b[3],
 198                                 enc_random_b[4],enc_random_b[5],enc_random_b[6],enc_random_b[7]);
 199
 200                         Dbprintf("    B: %02x %02x %02x %02x %02x %02x %02x %02x",
 201                                 random_b[0],random_b[1],random_b[2],random_b[3],
 202                                 random_b[4],random_b[5],random_b[6],random_b[7]);
 203
 204                         Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",
 205                                         rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],
 206                                         rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);
 207
 208                         Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",
 209                                         rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],
 210                                         rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15] );
 211                 }
 212
 213                 // encrypt    out, in, length, key, iv
 214                 tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);
 215
 216
 217                 len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, receivedAnswer, receivedAnswerPar, NULL);
 218                 if (len != 11) {
 219                         if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
 220                         OnError(1);
 221                         return;
 222                 }
 223
 224                 uint8_t enc_resp[8] = { 0 };
 225                 uint8_t resp_random_a[8] = { 0 };
 226                 memcpy(enc_resp, receivedAnswer+1, 8);
 227
 228                 // decrypt    out, in, length, key, iv
 229                 tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b);
 230                 if ( memcmp(resp_random_a, random_a, 8) != 0 )
 231                         Dbprintf("failed authentication");
 232
 233                 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
 234                         Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",
 235                                         rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],
 236                                         rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);
 237
 238                         Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",
 239                                         rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],
 240                                         rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15]);
 241
 242                         Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x",
 243                                         random_a[0],random_a[1],random_a[2],random_a[3],
 244                                         random_a[4],random_a[5],random_a[6],random_a[7]);
 245
 246                         Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x",
 247                                         resp_random_a[0],resp_random_a[1],resp_random_a[2],resp_random_a[3],
 248                                         resp_random_a[4],resp_random_a[5],resp_random_a[6],resp_random_a[7]);
 249                 }
 250         }
 251
 252         if( mifare_ultra_readblock(blockNo, dataout) ) {
 253                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");
 254                 OnError(2);
 255                 return;
 256         }
 257
 258         if( mifare_ultra_halt() ) {
 259                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
 260                 OnError(3);
 261                 return;
 262         }
 263
 264     cmd_send(CMD_ACK,1,0,0,dataout,16);
 265         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 266         LEDsoff();
 267 }
 268 //-----------------------------------------------------------------------------
 269 // Select, Authenticate, Read a MIFARE tag.
 270 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)
 271 //-----------------------------------------------------------------------------
 272 void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 273 {
 274   // params
 275         uint8_t sectorNo = arg0;
 276         uint8_t keyType = arg1;
 277         uint64_t ui64Key = 0;
 278         ui64Key = bytes_to_num(datain, 6);
 279
 280         // variables
 281         byte_t isOK = 0;
 282         byte_t dataoutbuf[16 * 16];
 283         uint8_t uid[10];
 284         uint32_t cuid;
 285         struct Crypto1State mpcs = {0, 0};
 286         struct Crypto1State *pcs;
 287         pcs = &mpcs;
 288
 289         // clear trace
 290         clear_trace();
 291
 292         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 293
 294         LED_A_ON();
 295         LED_B_OFF();
 296         LED_C_OFF();
 297
 298         isOK = 1;
 299         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 300                 isOK = 0;
 301                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 302         }
 303
 304
 305         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 306                 isOK = 0;
 307                 if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 308         }
 309
 310         for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 311                 if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {
 312                         isOK = 0;
 313                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read sector %2d block %2d error", sectorNo, blockNo);
 314                         break;
 315                 }
 316         }
 317
 318         if(mifare_classic_halt(pcs, cuid)) {
 319                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 320         }
 321
 322         //  ----------------------------- crypto1 destroy
 323         crypto1_destroy(pcs);
 324
 325         if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
 326
 327         LED_B_ON();
 328         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16*NumBlocksPerSector(sectorNo));
 329         LED_B_OFF();
 330
 331         // Thats it...
 332         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 333         LEDsoff();
 334 }
 335
 336 void MifareUReadCard(uint8_t arg0, int arg1, uint8_t *datain)
 337 {
 338         // params
 339         uint8_t sectorNo = arg0;
 340         int Pages = arg1;
 341         int countpages = 0;
 342         uint8_t dataout[176] = {0x00};;
 343
 344         LEDsoff();
 345         LED_A_ON();
 346         clear_trace();
 347         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 348
 349         int len = iso14443a_select_card(NULL, NULL, NULL);
 350         if (!len) {
 351                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%d)",len);
 352                 OnError(1);
 353                 return;
 354         }
 355
 356         for (int i = 0; i < Pages; i++){
 357
 358                 len = mifare_ultra_readblock(sectorNo * 4 + i, dataout + 4 * i);
 359
 360                 if (len) {
 361                         if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);
 362                         OnError(2);
 363                         return;
 364                 } else {
 365                         countpages++;
 366                 }
 367         }
 368
 369         if (mifare_ultra_halt()) {
 370                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
 371                 OnError(3);
 372                 return;
 373         }
 374
 375         if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Pages read %d", countpages);
 376
 377                 len = Pages*4;
 378
 379         cmd_send(CMD_ACK, 1, 0, 0, dataout, len);
 380         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 381         LEDsoff();
 382 }
 383
 384 //-----------------------------------------------------------------------------
 385 // Select, Authenticate, Write a MIFARE tag.
 386 // read block
 387 //-----------------------------------------------------------------------------
 388 void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 389 {
 390         // params
 391         uint8_t blockNo = arg0;
 392         uint8_t keyType = arg1;
 393         uint64_t ui64Key = 0;
 394         byte_t blockdata[16];
 395
 396         ui64Key = bytes_to_num(datain, 6);
 397         memcpy(blockdata, datain + 10, 16);
 398
 399         // variables
 400         byte_t isOK = 0;
 401         uint8_t uid[10];
 402         uint32_t cuid;
 403         struct Crypto1State mpcs = {0, 0};
 404         struct Crypto1State *pcs;
 405         pcs = &mpcs;
 406
 407         // clear trace
 408         clear_trace();
 409
 410         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 411
 412         LED_A_ON();
 413         LED_B_OFF();
 414         LED_C_OFF();
 415
 416         while (true) {
 417                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 418                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 419                         break;
 420                 };
 421
 422                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 423                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 424                         break;
 425                 };
 426
 427                 if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {
 428                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 429                         break;
 430                 };
 431
 432                 if(mifare_classic_halt(pcs, cuid)) {
 433                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 434                         break;
 435                 };
 436
 437                 isOK = 1;
 438                 break;
 439         }
 440
 441         //  ----------------------------- crypto1 destroy
 442         crypto1_destroy(pcs);
 443
 444         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 445
 446         LED_B_ON();
 447         cmd_send(CMD_ACK,isOK,0,0,0,0);
 448         LED_B_OFF();
 449
 450
 451         // Thats it...
 452         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 453         LEDsoff();
 454 }
 455
 456 void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
 457 {
 458     uint8_t blockNo = arg0;
 459         byte_t blockdata[16] = {0x00};
 460
 461     memcpy(blockdata, datain, 16);
 462
 463         uint8_t uid[10] = {0x00};
 464
 465         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
 466
 467         clear_trace();
 468         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 469
 470         if(!iso14443a_select_card(uid, NULL, NULL)) {
 471                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 472                 OnError(0);
 473                 return;
 474         };
 475
 476         if(mifare_ultra_writeblock(blockNo, blockdata)) {
 477                 if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 478                 OnError(0);
 479                 return; };
 480
 481         if(mifare_ultra_halt()) {
 482                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 483                 OnError(0);
 484                 return;
 485         };
 486
 487         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 488
 489         cmd_send(CMD_ACK,1,0,0,0,0);
 490         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 491         LEDsoff();
 492 }
 493
 494 void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
 495 {
 496         uint8_t blockNo = arg0;
 497         byte_t blockdata[4] = {0x00};
 498
 499         memcpy(blockdata, datain,4);
 500
 501         uint8_t uid[10] = {0x00};
 502
 503         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
 504         clear_trace();
 505         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 506
 507         if(!iso14443a_select_card(uid, NULL, NULL)) {
 508                 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
 509                 OnError(0);
 510                 return;
 511         };
 512
 513         if(mifare_ultra_special_writeblock(blockNo, blockdata)) {
 514                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 515                 OnError(0);
 516                 return;
 517         };
 518
 519         if(mifare_ultra_halt()) {
 520                 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
 521                 OnError(0);
 522                 return;
 523         };
 524
 525         if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
 526
 527         cmd_send(CMD_ACK,1,0,0,0,0);
 528         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 529         LEDsoff();
 530 }
 531
 532 void MifareUSetPwd(uint8_t arg0, uint8_t *datain){
 533
 534         uint8_t pwd[16] = {0x00};
 535         byte_t blockdata[4] = {0x00};
 536
 537         memcpy(pwd, datain, 16);
 538
 539         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
 540         clear_trace();
 541         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 542
 543         if(!iso14443a_select_card(NULL, NULL, NULL)) {
 544                 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
 545                 OnError(0);
 546                 return;
 547         };
 548
 549         blockdata[0] = pwd[7];
 550         blockdata[1] = pwd[6];
 551         blockdata[2] = pwd[5];
 552         blockdata[3] = pwd[4];
 553         if(mifare_ultra_special_writeblock( 44, blockdata)) {
 554                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 555                 OnError(44);
 556                 return;
 557         };
 558
 559         blockdata[0] = pwd[3];
 560         blockdata[1] = pwd[2];
 561         blockdata[2] = pwd[1];
 562         blockdata[3] = pwd[0];
 563         if(mifare_ultra_special_writeblock( 45, blockdata)) {
 564                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 565                 OnError(45);
 566                 return;
 567         };
 568
 569         blockdata[0] = pwd[15];
 570         blockdata[1] = pwd[14];
 571         blockdata[2] = pwd[13];
 572         blockdata[3] = pwd[12];
 573         if(mifare_ultra_special_writeblock( 46, blockdata)) {
 574                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 575                 OnError(46);
 576                 return;
 577         };
 578
 579         blockdata[0] = pwd[11];
 580         blockdata[1] = pwd[10];
 581         blockdata[2] = pwd[9];
 582         blockdata[3] = pwd[8];
 583         if(mifare_ultra_special_writeblock( 47, blockdata)) {
 584                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 585                 OnError(47);
 586                 return;
 587         };
 588
 589         if(mifare_ultra_halt()) {
 590                 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
 591                 OnError(0);
 592                 return;
 593         };
 594
 595         cmd_send(CMD_ACK,1,0,0,0,0);
 596         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 597         LEDsoff();
 598 }
 599
 600 // Return 1 if the nonce is invalid else return 0
 601 int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_t *parity) {
 602         return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \
 603         (oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \
 604         (oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;
 605 }
 606
 607
 608 //-----------------------------------------------------------------------------
 609 // MIFARE nested authentication.
 610 //
 611 //-----------------------------------------------------------------------------
 612 void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *datain)
 613 {
 614         // params
 615         uint8_t blockNo = arg0 & 0xff;
 616         uint8_t keyType = (arg0 >> 8) & 0xff;
 617         uint8_t targetBlockNo = arg1 & 0xff;
 618         uint8_t targetKeyType = (arg1 >> 8) & 0xff;
 619         uint64_t ui64Key = 0;
 620
 621         ui64Key = bytes_to_num(datain, 6);
 622
 623         // variables
 624         uint16_t rtr, i, j, len;
 625         uint16_t davg;
 626         static uint16_t dmin, dmax;
 627         uint8_t uid[10];
 628         uint32_t cuid, nt1, nt2, nttmp, nttest, ks1;
 629         uint8_t par[1];
 630         uint32_t target_nt[2], target_ks[2];
 631
 632         uint8_t par_array[4];
 633         uint16_t ncount = 0;
 634         struct Crypto1State mpcs = {0, 0};
 635         struct Crypto1State *pcs;
 636         pcs = &mpcs;
 637         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
 638
 639         uint32_t auth1_time, auth2_time;
 640         static uint16_t delta_time;
 641
 642         // free eventually allocated BigBuf memory
 643         BigBuf_free();
 644         // clear trace
 645         clear_trace();
 646         set_tracing(false);
 647
 648         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 649
 650         LED_A_ON();
 651         LED_C_OFF();
 652
 653
 654         // statistics on nonce distance
 655         if (calibrate) {        // for first call only. Otherwise reuse previous calibration
 656                 LED_B_ON();
 657                 WDT_HIT();
 658
 659                 davg = dmax = 0;
 660                 dmin = 2000;
 661                 delta_time = 0;
 662
 663                 for (rtr = 0; rtr < 17; rtr++) {
 664
 665                         // prepare next select. No need to power down the card.
 666                         if(mifare_classic_halt(pcs, cuid)) {
 667                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 668                                 rtr--;
 669                                 continue;
 670                         }
 671
 672                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 673                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 674                                 rtr--;
 675                                 continue;
 676                         };
 677
 678                         auth1_time = 0;
 679                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 680                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 681                                 rtr--;
 682                                 continue;
 683                         };
 684
 685                         if (delta_time) {
 686                                 auth2_time = auth1_time + delta_time;
 687                         } else {
 688                                 auth2_time = 0;
 689                         }
 690                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_NESTED, &nt2, &auth2_time)) {
 691                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error");
 692                                 rtr--;
 693                                 continue;
 694                         };
 695
 696                         nttmp = prng_successor(nt1, 100);                               //NXP Mifare is typical around 840,but for some unlicensed/compatible mifare card this can be 160
 697                         for (i = 101; i < 1200; i++) {
 698                                 nttmp = prng_successor(nttmp, 1);
 699                                 if (nttmp == nt2) break;
 700                         }
 701
 702                         if (i != 1200) {
 703                                 if (rtr != 0) {
 704                                         davg += i;
 705                                         dmin = MIN(dmin, i);
 706                                         dmax = MAX(dmax, i);
 707                                 }
 708                                 else {
 709                                         delta_time = auth2_time - auth1_time + 32;  // allow some slack for proper timing
 710                                 }
 711                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i);
 712                         }
 713                 }
 714
 715                 if (rtr <= 1)   return;
 716
 717                 davg = (davg + (rtr - 1)/2) / (rtr - 1);
 718
 719                 if (MF_DBGLEVEL >= 3) Dbprintf("min=%d max=%d avg=%d, delta_time=%d", dmin, dmax, davg, delta_time);
 720
 721                 dmin = davg - 2;
 722                 dmax = davg + 2;
 723
 724                 LED_B_OFF();
 725
 726         }
 727 //  -------------------------------------------------------------------------------------------------
 728
 729         LED_C_ON();
 730
 731         //  get crypted nonces for target sector
 732         for(i=0; i < 2; i++) { // look for exactly two different nonces
 733
 734                 target_nt[i] = 0;
 735                 while(target_nt[i] == 0) { // continue until we have an unambiguous nonce
 736
 737                         // prepare next select. No need to power down the card.
 738                         if(mifare_classic_halt(pcs, cuid)) {
 739                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 740                                 continue;
 741                         }
 742
 743                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 744                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 745                                 continue;
 746                         };
 747
 748                         auth1_time = 0;
 749                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 750                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 751                                 continue;
 752                         };
 753
 754                         // nested authentication
 755                         auth2_time = auth1_time + delta_time;
 756                         len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);
 757                         if (len != 4) {
 758                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error len=%d", len);
 759                                 continue;
 760                         };
 761
 762                         nt2 = bytes_to_num(receivedAnswer, 4);
 763                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);
 764
 765                         // Parity validity check
 766                         for (j = 0; j < 4; j++) {
 767                                 par_array[j] = (oddparity(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));
 768                         }
 769
 770                         ncount = 0;
 771                         nttest = prng_successor(nt1, dmin - 1);
 772                         for (j = dmin; j < dmax + 1; j++) {
 773                                 nttest = prng_successor(nttest, 1);
 774                                 ks1 = nt2 ^ nttest;
 775
 776                                 if (valid_nonce(nttest, nt2, ks1, par_array)){
 777                                         if (ncount > 0) {               // we are only interested in disambiguous nonces, try again
 778                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (ambigous), ntdist=%d", i+1, j);
 779                                                 target_nt[i] = 0;
 780                                                 break;
 781                                         }
 782                                         target_nt[i] = nttest;
 783                                         target_ks[i] = ks1;
 784                                         ncount++;
 785                                         if (i == 1 && target_nt[1] == target_nt[0]) { // we need two different nonces
 786                                                 target_nt[i] = 0;
 787                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#2: dismissed (= nonce#1), ntdist=%d", j);
 788                                                 break;
 789                                         }
 790                                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: valid, ntdist=%d", i+1, j);
 791                                 }
 792                         }
 793                         if (target_nt[i] == 0 && j == dmax+1 && MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (all invalid)", i+1);
 794                 }
 795         }
 796
 797         LED_C_OFF();
 798
 799         //  ----------------------------- crypto1 destroy
 800         crypto1_destroy(pcs);
 801
 802         byte_t buf[4 + 4 * 4];
 803         memcpy(buf, &cuid, 4);
 804         memcpy(buf+4, &target_nt[0], 4);
 805         memcpy(buf+8, &target_ks[0], 4);
 806         memcpy(buf+12, &target_nt[1], 4);
 807         memcpy(buf+16, &target_ks[1], 4);
 808
 809         LED_B_ON();
 810         cmd_send(CMD_ACK, 0, 2, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));
 811         LED_B_OFF();
 812
 813         if (MF_DBGLEVEL >= 3)   DbpString("NESTED FINISHED");
 814
 815         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 816         LEDsoff();
 817         set_tracing(TRUE);
 818 }
 819
 820 //-----------------------------------------------------------------------------
 821 // MIFARE check keys. key count up to 85.
 822 //
 823 //-----------------------------------------------------------------------------
 824 void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 825 {
 826   // params
 827         uint8_t blockNo = arg0;
 828         uint8_t keyType = arg1;
 829         uint8_t keyCount = arg2;
 830         uint64_t ui64Key = 0;
 831
 832         // variables
 833         int i;
 834         byte_t isOK = 0;
 835         uint8_t uid[10];
 836         uint32_t cuid;
 837         struct Crypto1State mpcs = {0, 0};
 838         struct Crypto1State *pcs;
 839         pcs = &mpcs;
 840
 841         // clear debug level
 842         int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
 843         MF_DBGLEVEL = MF_DBG_NONE;
 844
 845         // clear trace
 846         clear_trace();
 847         set_tracing(TRUE);
 848
 849         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 850
 851         LED_A_ON();
 852         LED_B_OFF();
 853         LED_C_OFF();
 854
 855         for (i = 0; i < keyCount; i++) {
 856                 if(mifare_classic_halt(pcs, cuid)) {
 857                         if (MF_DBGLEVEL >= 1)   Dbprintf("ChkKeys: Halt error");
 858                 }
 859
 860                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 861                         if (OLD_MF_DBGLEVEL >= 1)       Dbprintf("ChkKeys: Can't select card");
 862                         break;
 863                 };
 864
 865                 ui64Key = bytes_to_num(datain + i * 6, 6);
 866                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 867                         continue;
 868                 };
 869
 870                 isOK = 1;
 871                 break;
 872         }
 873
 874         //  ----------------------------- crypto1 destroy
 875         crypto1_destroy(pcs);
 876
 877         LED_B_ON();
 878     cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);
 879         LED_B_OFF();
 880
 881         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 882         LEDsoff();
 883
 884         // restore debug level
 885         MF_DBGLEVEL = OLD_MF_DBGLEVEL;
 886 }
 887
 888 //-----------------------------------------------------------------------------
 889 // MIFARE commands set debug level
 890 //
 891 //-----------------------------------------------------------------------------
 892 void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 893         MF_DBGLEVEL = arg0;
 894         Dbprintf("Debug level: %d", MF_DBGLEVEL);
 895 }
 896
 897 //-----------------------------------------------------------------------------
 898 // Work with emulator memory
 899 //
 900 //-----------------------------------------------------------------------------
 901 void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 902         emlClearMem();
 903 }
 904
 905 void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 906         emlSetMem(datain, arg0, arg1); // data, block num, blocks count
 907 }
 908
 909 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 910         byte_t buf[USB_CMD_DATA_SIZE];
 911         emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)
 912
 913         LED_B_ON();
 914         cmd_send(CMD_ACK,arg0,arg1,0,buf,USB_CMD_DATA_SIZE);
 915         LED_B_OFF();
 916 }
 917
 918 //-----------------------------------------------------------------------------
 919 // Load a card into the emulator memory
 920 //
 921 //-----------------------------------------------------------------------------
 922 void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 923         uint8_t numSectors = arg0;
 924         uint8_t keyType = arg1;
 925         uint64_t ui64Key = 0;
 926         uint32_t cuid;
 927         struct Crypto1State mpcs = {0, 0};
 928         struct Crypto1State *pcs;
 929         pcs = &mpcs;
 930
 931         // variables
 932         byte_t dataoutbuf[16];
 933         byte_t dataoutbuf2[16];
 934         uint8_t uid[10];
 935
 936         // clear trace
 937         clear_trace();
 938         set_tracing(false);
 939
 940         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 941
 942         LED_A_ON();
 943         LED_B_OFF();
 944         LED_C_OFF();
 945
 946         bool isOK = true;
 947
 948         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 949                 isOK = false;
 950                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 951         }
 952
 953         for (uint8_t sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {
 954                 ui64Key = emlGetKey(sectorNo, keyType);
 955                 if (sectorNo == 0){
 956                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 957                                 isOK = false;
 958                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth error", sectorNo);
 959                                 break;
 960                         }
 961                 } else {
 962                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_NESTED)) {
 963                                 isOK = false;
 964                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth nested error", sectorNo);
 965                                 break;
 966                         }
 967                 }
 968
 969                 for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 970                         if(isOK && mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {
 971                                 isOK = false;
 972                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Error reading sector %2d block %2d", sectorNo, blockNo);
 973                                 break;
 974                         };
 975                         if (isOK) {
 976                                 if (blockNo < NumBlocksPerSector(sectorNo) - 1) {
 977                                         emlSetMem(dataoutbuf, FirstBlockOfSector(sectorNo) + blockNo, 1);
 978                                 } else {        // sector trailer, keep the keys, set only the AC
 979                                         emlGetMem(dataoutbuf2, FirstBlockOfSector(sectorNo) + blockNo, 1);
 980                                         memcpy(&dataoutbuf2[6], &dataoutbuf[6], 4);
 981                                         emlSetMem(dataoutbuf2,  FirstBlockOfSector(sectorNo) + blockNo, 1);
 982                                 }
 983                         }
 984                 }
 985
 986         }
 987
 988         if(mifare_classic_halt(pcs, cuid)) {
 989                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 990         };
 991
 992         //  ----------------------------- crypto1 destroy
 993         crypto1_destroy(pcs);
 994
 995         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 996         LEDsoff();
 997
 998         if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");
 999
1000 }
1001
1002
1003 //-----------------------------------------------------------------------------
1004 // Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)
1005 //
1006 //-----------------------------------------------------------------------------
1007 void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
1008
1009   // params
1010         uint8_t needWipe = arg0;
1011         // bit 0 - need get UID
1012         // bit 1 - need wupC
1013         // bit 2 - need HALT after sequence
1014         // bit 3 - need init FPGA and field before sequence
1015         // bit 4 - need reset FPGA and LED
1016         uint8_t workFlags = arg1;
1017         uint8_t blockNo = arg2;
1018
1019         // card commands
1020         uint8_t wupC1[]       = { 0x40 };
1021         uint8_t wupC2[]       = { 0x43 };
1022         uint8_t wipeC[]       = { 0x41 };
1023
1024         // variables
1025         byte_t isOK = 0;
1026         uint8_t uid[10] = {0x00};
1027         uint8_t d_block[18] = {0x00};
1028         uint32_t cuid;
1029
1030         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1031         uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1032
1033         // reset FPGA and LED
1034         if (workFlags & 0x08) {
1035                 LED_A_ON();
1036                 LED_B_OFF();
1037                 LED_C_OFF();
1038
1039                 clear_trace();
1040                 set_tracing(TRUE);
1041                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1042         }
1043
1044         while (true) {
1045
1046                 // get UID from chip
1047                 if (workFlags & 0x01) {
1048                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
1049                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
1050                                 //break;
1051                         };
1052
1053                         if(mifare_classic_halt(NULL, cuid)) {
1054                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1055                                 //break;
1056                         };
1057                 };
1058
1059                 // reset chip
1060                 if (needWipe){
1061                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1062                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1063                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1064                                 break;
1065                         };
1066
1067                         ReaderTransmit(wipeC, sizeof(wipeC), NULL);
1068                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1069                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wipeC error");
1070                                 break;
1071                         };
1072
1073                         if(mifare_classic_halt(NULL, cuid)) {
1074                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1075                                 break;
1076                         };
1077                 };
1078
1079                 // write block
1080                 if (workFlags & 0x02) {
1081                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1082                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1083                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1084                                 break;
1085                         };
1086
1087                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1088                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1089                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
1090                                 break;
1091                         };
1092                 }
1093
1094                 if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {
1095                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send command error");
1096                         break;
1097                 };
1098
1099                 memcpy(d_block, datain, 16);
1100                 AppendCrc14443a(d_block, 16);
1101
1102                 ReaderTransmit(d_block, sizeof(d_block), NULL);
1103                 if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) || (receivedAnswer[0] != 0x0a)) {
1104                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send data error");
1105                         break;
1106                 };
1107
1108                 if (workFlags & 0x04) {
1109                         if (mifare_classic_halt(NULL, cuid)) {
1110                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1111                                 break;
1112                         };
1113                 }
1114
1115                 isOK = 1;
1116                 break;
1117         }
1118
1119         LED_B_ON();
1120         cmd_send(CMD_ACK,isOK,0,0,uid,4);
1121         LED_B_OFF();
1122
1123         if ((workFlags & 0x10) || (!isOK)) {
1124                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1125                 LEDsoff();
1126         }
1127 }
1128
1129
1130 void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
1131
1132   // params
1133         // bit 1 - need wupC
1134         // bit 2 - need HALT after sequence
1135         // bit 3 - need init FPGA and field before sequence
1136         // bit 4 - need reset FPGA and LED
1137         uint8_t workFlags = arg0;
1138         uint8_t blockNo = arg2;
1139
1140         // card commands
1141         uint8_t wupC1[]       = { 0x40 };
1142         uint8_t wupC2[]       = { 0x43 };
1143
1144         // variables
1145         byte_t isOK = 0;
1146         uint8_t data[18] = {0x00};
1147         uint32_t cuid = 0;
1148
1149         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1150         uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1151
1152         if (workFlags & 0x08) {
1153                 LED_A_ON();
1154                 LED_B_OFF();
1155                 LED_C_OFF();
1156
1157                 clear_trace();
1158                 set_tracing(TRUE);
1159                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1160         }
1161
1162         while (true) {
1163                 if (workFlags & 0x02) {
1164                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1165                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1166                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1167                                 break;
1168                         };
1169
1170                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1171                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1172                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
1173                                 break;
1174                         };
1175                 }
1176
1177                 // read block
1178                 if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {
1179                         if (MF_DBGLEVEL >= 1)   Dbprintf("read block send command error");
1180                         break;
1181                 };
1182                 memcpy(data, receivedAnswer, 18);
1183
1184                 if (workFlags & 0x04) {
1185                         if (mifare_classic_halt(NULL, cuid)) {
1186                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1187                                 break;
1188                         };
1189                 }
1190
1191                 isOK = 1;
1192                 break;
1193         }
1194
1195         LED_B_ON();
1196         cmd_send(CMD_ACK,isOK,0,0,data,18);
1197         LED_B_OFF();
1198
1199         if ((workFlags & 0x10) || (!isOK)) {
1200                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1201                 LEDsoff();
1202         }
1203 }
1204
1205 void MifareCIdent(){
1206
1207         // card commands
1208         uint8_t wupC1[]       = { 0x40 };
1209         uint8_t wupC2[]       = { 0x43 };
1210
1211         // variables
1212         byte_t isOK = 1;
1213
1214         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1215         uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1216
1217         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1218         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1219                 isOK = 0;
1220         };
1221
1222         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1223         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1224                 isOK = 0;
1225         };
1226
1227         if (mifare_classic_halt(NULL, 0)) {
1228                 isOK = 0;
1229         };
1230
1231         cmd_send(CMD_ACK,isOK,0,0,0,0);
1232 }
1233
1234 void MifareCollectNonces(uint32_t arg0, uint32_t arg1){
1235
1236         BigBuf_free();
1237
1238         uint32_t iterations = arg0;
1239         uint8_t uid[10] = {0x00};
1240
1241         uint8_t *response = BigBuf_malloc(MAX_MIFARE_FRAME_SIZE);
1242         uint8_t *responsePar = BigBuf_malloc(MAX_MIFARE_PARITY_SIZE);
1243
1244         uint8_t mf_auth[] = { 0x60,0x00,0xf5,0x7b };
1245
1246         // get memory from BigBuf.
1247         uint8_t *nonces = BigBuf_malloc(iterations * 4);
1248
1249         LED_A_ON();
1250         LED_B_OFF();
1251         LED_C_OFF();
1252
1253         clear_trace();
1254         set_tracing(TRUE);
1255         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1256
1257         for (int i = 0; i < iterations; i++) {
1258
1259                 WDT_HIT();
1260
1261                 // Test if the action was cancelled
1262                 if(BUTTON_PRESS()) break;
1263
1264                 //              if(mifare_classic_halt(pcs, cuid)) {
1265                 //                      if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
1266                 //}
1267
1268                 if(!iso14443a_select_card(uid, NULL, NULL)) {
1269                         if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
1270                         continue;
1271                 };
1272
1273                 // Transmit MIFARE_CLASSIC_AUTH.
1274                 ReaderTransmit(mf_auth, sizeof(mf_auth), NULL);
1275
1276                 // Receive the (4 Byte) "random" nonce
1277                 if (!ReaderReceive(response, responsePar)) {
1278                         if (MF_DBGLEVEL >= 1)   Dbprintf("Couldn't receive tag nonce");
1279                         continue;
1280                 }
1281
1282                 nonces[i*4] = bytes_to_num(response, 4);
1283         }
1284
1285         int packLen =  iterations * 4;
1286         int packSize = 0;
1287         int packNum = 0;
1288         while (packLen > 0) {
1289                 packSize = MIN(USB_CMD_DATA_SIZE, packLen);
1290                 LED_B_ON();
1291                 cmd_send(CMD_ACK, 77, 0, packSize, nonces - packLen, packSize);
1292                 LED_B_OFF();
1293
1294                 packLen -= packSize;
1295                 packNum++;
1296         }
1297
1298         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1299         LEDsoff();
1300 }
1301
1302 //
1303 // DESFIRE
1304 //
1305
1306 void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){
1307
1308         byte_t dataout[11] = {0x00};
1309         uint8_t uid[10] = {0x00};
1310         uint32_t cuid = 0x00;
1311
1312         clear_trace();
1313         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1314
1315         int len = iso14443a_select_card(uid, NULL, &cuid);
1316         if(!len) {
1317                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");
1318                 OnError(1);
1319                 return;
1320         };
1321
1322         if(mifare_desfire_des_auth1(cuid, dataout)){
1323                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part1: Fail.");
1324                 OnError(4);
1325                 return;
1326         }
1327
1328         if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");
1329     cmd_send(CMD_ACK,1,cuid,0,dataout, sizeof(dataout));
1330 }
1331
1332 void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){
1333
1334         uint32_t cuid = arg0;
1335         uint8_t key[16] = {0x00};
1336         byte_t dataout[12] = {0x00};
1337         byte_t isOK = 0;
1338
1339         memcpy(key, datain, 16);
1340
1341         isOK = mifare_desfire_des_auth2(cuid, key, dataout);
1342
1343         if( isOK) {
1344             if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed");
1345                 OnError(4);
1346                 return;
1347         }
1348
1349         if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 2 FINISHED");
1350
1351         cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout));
1352         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1353         LEDsoff();
1354 }