cvs.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
  20 #include "crc.h"
  21
  22 // the block number for the ISO14443-4 PCB
  23 uint8_t pcb_blocknum = 0;
  24 // Deselect card by sending a s-block. the crc is precalced for speed
  25 static  uint8_t deselect_cmd[] = {0xc2,0xe0,0xb4};
  26
  27
  28 //-----------------------------------------------------------------------------
  29 // Select, Authenticate, Read a MIFARE tag.
  30 // read block
  31 //-----------------------------------------------------------------------------
  32 void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
  33 {
  34   // params
  35         uint8_t blockNo = arg0;
  36         uint8_t keyType = arg1;
  37         uint64_t ui64Key = 0;
  38         ui64Key = bytes_to_num(datain, 6);
  39
  40         // variables
  41         byte_t isOK = 0;
  42         byte_t dataoutbuf[16];
  43         uint8_t uid[10];
  44         uint32_t cuid;
  45         struct Crypto1State mpcs = {0, 0};
  46         struct Crypto1State *pcs;
  47         pcs = &mpcs;
  48
  49         // clear trace
  50         clear_trace();
  51         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
  52
  53         LED_A_ON();
  54         LED_B_OFF();
  55         LED_C_OFF();
  56
  57         while (true) {
  58                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
  59                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
  60                         break;
  61                 };
  62
  63                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
  64                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
  65                         break;
  66                 };
  67
  68                 if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {
  69                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read block error");
  70                         break;
  71                 };
  72
  73                 if(mifare_classic_halt(pcs, cuid)) {
  74                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
  75                         break;
  76                 };
  77
  78                 isOK = 1;
  79                 break;
  80         }
  81
  82         //  ----------------------------- crypto1 destroy
  83         crypto1_destroy(pcs);
  84
  85         if (MF_DBGLEVEL >= 2)   DbpString("READ BLOCK FINISHED");
  86
  87         LED_B_ON();
  88         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
  89         LED_B_OFF();
  90
  91         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
  92         LEDsoff();
  93 }
  94
  95 void MifareUC_Auth(uint8_t arg0, uint8_t *keybytes){
  96
  97         bool turnOffField = (arg0 == 1);
  98
  99         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
 100         clear_trace();
 101         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 102
 103         if(!iso14443a_select_card(NULL, NULL, NULL)) {
 104                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");
 105                 OnError(0);
 106                 return;
 107         };
 108
 109         if(!mifare_ultra_auth(keybytes)){
 110                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed");
 111                 OnError(1);
 112                 return;
 113         }
 114
 115         if (turnOffField) {
 116                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 117                 LEDsoff();
 118         }
 119         cmd_send(CMD_ACK,1,0,0,0,0);
 120 }
 121
 122 // Arg0 = BlockNo,
 123 // Arg1 = UsePwd bool
 124 // datain = PWD bytes,
 125 void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
 126 {
 127         uint8_t blockNo = arg0;
 128         byte_t dataout[16] = {0x00};
 129         bool useKey = (arg1 == 1); //UL_C
 130         bool usePwd = (arg1 == 2); //UL_EV1/NTAG
 131
 132         LEDsoff();
 133         LED_A_ON();
 134         clear_trace();
 135         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 136
 137         int len = iso14443a_select_card(NULL, NULL, NULL);
 138         if(!len) {
 139                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len);
 140                 OnError(1);
 141                 return;
 142         }
 143
 144         // UL-C authentication
 145         if ( useKey ) {
 146                 uint8_t key[16] = {0x00};
 147                 memcpy(key, datain, sizeof(key) );
 148
 149                 if ( !mifare_ultra_auth(key) ) {
 150                         OnError(1);
 151                         return;
 152                 }
 153         }
 154
 155         // UL-EV1 / NTAG authentication
 156         if ( usePwd ) {
 157                 uint8_t pwd[4] = {0x00};
 158                 memcpy(pwd, datain, 4);
 159                 uint8_t pack[4] = {0,0,0,0};
 160                 if (!mifare_ul_ev1_auth(pwd, pack)) {
 161                         OnError(1);
 162                         return;
 163                 }
 164         }
 165
 166         if( mifare_ultra_readblock(blockNo, dataout) ) {
 167                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");
 168                 OnError(2);
 169                 return;
 170         }
 171
 172         if( mifare_ultra_halt() ) {
 173                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
 174                 OnError(3);
 175                 return;
 176         }
 177
 178         cmd_send(CMD_ACK,1,0,0,dataout,16);
 179         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 180         LEDsoff();
 181 }
 182
 183 //-----------------------------------------------------------------------------
 184 // Select, Authenticate, Read a MIFARE tag.
 185 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)
 186 //-----------------------------------------------------------------------------
 187 void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 188 {
 189   // params
 190         uint8_t sectorNo = arg0;
 191         uint8_t keyType = arg1;
 192         uint64_t ui64Key = 0;
 193         ui64Key = bytes_to_num(datain, 6);
 194
 195         // variables
 196         byte_t isOK = 0;
 197         byte_t dataoutbuf[16 * 16];
 198         uint8_t uid[10];
 199         uint32_t cuid;
 200         struct Crypto1State mpcs = {0, 0};
 201         struct Crypto1State *pcs;
 202         pcs = &mpcs;
 203
 204         // clear trace
 205         clear_trace();
 206
 207         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 208
 209         LED_A_ON();
 210         LED_B_OFF();
 211         LED_C_OFF();
 212
 213         isOK = 1;
 214         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 215                 isOK = 0;
 216                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 217         }
 218
 219
 220         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 221                 isOK = 0;
 222                 if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 223         }
 224
 225         for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 226                 if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {
 227                         isOK = 0;
 228                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read sector %2d block %2d error", sectorNo, blockNo);
 229                         break;
 230                 }
 231         }
 232
 233         if(mifare_classic_halt(pcs, cuid)) {
 234                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 235         }
 236
 237         //  ----------------------------- crypto1 destroy
 238         crypto1_destroy(pcs);
 239
 240         if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
 241
 242         LED_B_ON();
 243         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16*NumBlocksPerSector(sectorNo));
 244         LED_B_OFF();
 245
 246         // Thats it...
 247         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 248         LEDsoff();
 249 }
 250
 251 void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)
 252 {
 253         // free eventually allocated BigBuf memory
 254         BigBuf_free();
 255         // clear trace
 256         clear_trace();
 257
 258         // params
 259         uint8_t blockNo = arg0;
 260         uint16_t blocks = arg1;
 261         bool useKey = (arg2 == 1); //UL_C
 262         bool usePwd = (arg2 == 2); //UL_EV1/NTAG
 263         uint32_t countblocks = 0;
 264         uint8_t *dataout = BigBuf_malloc(CARD_MEMORY_SIZE);
 265         if (dataout == NULL){
 266                 Dbprintf("out of memory");
 267                 OnError(1);
 268                 return;
 269         }
 270
 271         LEDsoff();
 272         LED_A_ON();
 273         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 274
 275         int len = iso14443a_select_card(NULL, NULL, NULL);
 276         if (!len) {
 277                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%d)",len);
 278                 OnError(1);
 279                 return;
 280         }
 281
 282         // UL-C authentication
 283         if ( useKey ) {
 284                 uint8_t key[16] = {0x00};
 285                 memcpy(key, datain, sizeof(key) );
 286
 287                 if ( !mifare_ultra_auth(key) ) {
 288                         OnError(1);
 289                         return;
 290                 }
 291         }
 292
 293         // UL-EV1 / NTAG authentication
 294         if (usePwd) {
 295                 uint8_t pwd[4] = {0x00};
 296                 memcpy(pwd, datain, sizeof(pwd));
 297                 uint8_t pack[4] = {0,0,0,0};
 298
 299                 if (!mifare_ul_ev1_auth(pwd, pack)){
 300                         OnError(1);
 301                         return;
 302                 }
 303         }
 304
 305         for (int i = 0; i < blocks; i++){
 306                 if ((i*4) + 4 > CARD_MEMORY_SIZE) {
 307                         Dbprintf("Data exceeds buffer!!");
 308                         break;
 309                 }
 310
 311                 len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i);
 312
 313                 if (len) {
 314                         if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);
 315                         // if no blocks read - error out
 316                         if (i==0){
 317                                 OnError(2);
 318                                 return;
 319                         } else {
 320                                 //stop at last successful read block and return what we got
 321                                 break;
 322                         }
 323                 } else {
 324                         countblocks++;
 325                 }
 326         }
 327
 328         len = mifare_ultra_halt();
 329         if (len) {
 330                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
 331                 OnError(3);
 332                 return;
 333         }
 334
 335         if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Blocks read %d", countblocks);
 336
 337         countblocks *= 4;
 338         cmd_send(CMD_ACK, 1, countblocks, BigBuf_max_traceLen(), 0, 0);
 339         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 340         LEDsoff();
 341 }
 342
 343 //-----------------------------------------------------------------------------
 344 // Select, Authenticate, Write a MIFARE tag.
 345 // read block
 346 //-----------------------------------------------------------------------------
 347 void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 348 {
 349         // params
 350         uint8_t blockNo = arg0;
 351         uint8_t keyType = arg1;
 352         uint64_t ui64Key = 0;
 353         byte_t blockdata[16];
 354
 355         ui64Key = bytes_to_num(datain, 6);
 356         memcpy(blockdata, datain + 10, 16);
 357
 358         // variables
 359         byte_t isOK = 0;
 360         uint8_t uid[10];
 361         uint32_t cuid;
 362         struct Crypto1State mpcs = {0, 0};
 363         struct Crypto1State *pcs;
 364         pcs = &mpcs;
 365
 366         // clear trace
 367         clear_trace();
 368
 369         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 370
 371         LED_A_ON();
 372         LED_B_OFF();
 373         LED_C_OFF();
 374
 375         while (true) {
 376                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 377                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 378                         break;
 379                 };
 380
 381                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 382                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 383                         break;
 384                 };
 385
 386                 if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {
 387                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 388                         break;
 389                 };
 390
 391                 if(mifare_classic_halt(pcs, cuid)) {
 392                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 393                         break;
 394                 };
 395
 396                 isOK = 1;
 397                 break;
 398         }
 399
 400         //  ----------------------------- crypto1 destroy
 401         crypto1_destroy(pcs);
 402
 403         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 404
 405         LED_B_ON();
 406         cmd_send(CMD_ACK,isOK,0,0,0,0);
 407         LED_B_OFF();
 408
 409
 410         // Thats it...
 411         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 412         LEDsoff();
 413 }
 414
 415 void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
 416 {
 417         uint8_t blockNo = arg0;
 418         byte_t blockdata[16] = {0x00};
 419
 420         memcpy(blockdata, datain, 16);
 421
 422         uint8_t uid[10] = {0x00};
 423
 424         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
 425
 426         clear_trace();
 427         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 428
 429         if(!iso14443a_select_card(uid, NULL, NULL)) {
 430                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 431                 OnError(0);
 432                 return;
 433         };
 434
 435         if(mifare_ultra_writeblock(blockNo, blockdata)) {
 436                 if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 437                 OnError(0);
 438                 return; };
 439
 440         if(mifare_ultra_halt()) {
 441                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 442                 OnError(0);
 443                 return;
 444         };
 445
 446         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 447
 448         cmd_send(CMD_ACK,1,0,0,0,0);
 449         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 450         LEDsoff();
 451 }
 452
 453 void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
 454 {
 455         uint8_t blockNo = arg0;
 456         byte_t blockdata[4] = {0x00};
 457
 458         memcpy(blockdata, datain,4);
 459
 460         LEDsoff();
 461         LED_A_ON();
 462         clear_trace();
 463         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 464
 465         if(!iso14443a_select_card(NULL, NULL, NULL)) {
 466                 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
 467                 OnError(0);
 468                 return;
 469         };
 470
 471         if(mifare_ultra_special_writeblock(blockNo, blockdata)) {
 472                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 473                 OnError(0);
 474                 return;
 475         };
 476
 477         if(mifare_ultra_halt()) {
 478                 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
 479                 OnError(0);
 480                 return;
 481         };
 482
 483         if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
 484
 485         cmd_send(CMD_ACK,1,0,0,0,0);
 486         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 487         LEDsoff();
 488 }
 489
 490 void MifareUSetPwd(uint8_t arg0, uint8_t *datain){
 491
 492         uint8_t pwd[16] = {0x00};
 493         byte_t blockdata[4] = {0x00};
 494
 495         memcpy(pwd, datain, 16);
 496
 497         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
 498         clear_trace();
 499         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 500
 501         if(!iso14443a_select_card(NULL, NULL, NULL)) {
 502                 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
 503                 OnError(0);
 504                 return;
 505         };
 506
 507         blockdata[0] = pwd[7];
 508         blockdata[1] = pwd[6];
 509         blockdata[2] = pwd[5];
 510         blockdata[3] = pwd[4];
 511         if(mifare_ultra_special_writeblock( 44, blockdata)) {
 512                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 513                 OnError(44);
 514                 return;
 515         };
 516
 517         blockdata[0] = pwd[3];
 518         blockdata[1] = pwd[2];
 519         blockdata[2] = pwd[1];
 520         blockdata[3] = pwd[0];
 521         if(mifare_ultra_special_writeblock( 45, blockdata)) {
 522                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 523                 OnError(45);
 524                 return;
 525         };
 526
 527         blockdata[0] = pwd[15];
 528         blockdata[1] = pwd[14];
 529         blockdata[2] = pwd[13];
 530         blockdata[3] = pwd[12];
 531         if(mifare_ultra_special_writeblock( 46, blockdata)) {
 532                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 533                 OnError(46);
 534                 return;
 535         };
 536
 537         blockdata[0] = pwd[11];
 538         blockdata[1] = pwd[10];
 539         blockdata[2] = pwd[9];
 540         blockdata[3] = pwd[8];
 541         if(mifare_ultra_special_writeblock( 47, blockdata)) {
 542                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 543                 OnError(47);
 544                 return;
 545         };
 546
 547         if(mifare_ultra_halt()) {
 548                 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
 549                 OnError(0);
 550                 return;
 551         };
 552
 553         cmd_send(CMD_ACK,1,0,0,0,0);
 554         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 555         LEDsoff();
 556 }
 557
 558 // Return 1 if the nonce is invalid else return 0
 559 int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_t *parity) {
 560         return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \
 561         (oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \
 562         (oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;
 563 }
 564
 565
 566 //-----------------------------------------------------------------------------
 567 // MIFARE nested authentication.
 568 //
 569 //-----------------------------------------------------------------------------
 570 void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *datain)
 571 {
 572         // params
 573         uint8_t blockNo = arg0 & 0xff;
 574         uint8_t keyType = (arg0 >> 8) & 0xff;
 575         uint8_t targetBlockNo = arg1 & 0xff;
 576         uint8_t targetKeyType = (arg1 >> 8) & 0xff;
 577         uint64_t ui64Key = 0;
 578
 579         ui64Key = bytes_to_num(datain, 6);
 580
 581         // variables
 582         uint16_t rtr, i, j, len;
 583         uint16_t davg;
 584         static uint16_t dmin, dmax;
 585         uint8_t uid[10];
 586         uint32_t cuid, nt1, nt2, nttmp, nttest, ks1;
 587         uint8_t par[1];
 588         uint32_t target_nt[2], target_ks[2];
 589
 590         uint8_t par_array[4];
 591         uint16_t ncount = 0;
 592         struct Crypto1State mpcs = {0, 0};
 593         struct Crypto1State *pcs;
 594         pcs = &mpcs;
 595         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
 596
 597         uint32_t auth1_time, auth2_time;
 598         static uint16_t delta_time;
 599
 600         // free eventually allocated BigBuf memory
 601         BigBuf_free();
 602         // clear trace
 603         clear_trace();
 604         set_tracing(false);
 605
 606         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 607
 608         LED_A_ON();
 609         LED_C_OFF();
 610
 611
 612         // statistics on nonce distance
 613         if (calibrate) {        // for first call only. Otherwise reuse previous calibration
 614                 LED_B_ON();
 615                 WDT_HIT();
 616
 617                 davg = dmax = 0;
 618                 dmin = 2000;
 619                 delta_time = 0;
 620
 621                 for (rtr = 0; rtr < 17; rtr++) {
 622
 623                         // prepare next select. No need to power down the card.
 624                         if(mifare_classic_halt(pcs, cuid)) {
 625                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 626                                 rtr--;
 627                                 continue;
 628                         }
 629
 630                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 631                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 632                                 rtr--;
 633                                 continue;
 634                         };
 635
 636                         auth1_time = 0;
 637                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 638                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 639                                 rtr--;
 640                                 continue;
 641                         };
 642
 643                         if (delta_time) {
 644                                 auth2_time = auth1_time + delta_time;
 645                         } else {
 646                                 auth2_time = 0;
 647                         }
 648                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_NESTED, &nt2, &auth2_time)) {
 649                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error");
 650                                 rtr--;
 651                                 continue;
 652                         };
 653
 654                         nttmp = prng_successor(nt1, 100);                               //NXP Mifare is typical around 840,but for some unlicensed/compatible mifare card this can be 160
 655                         for (i = 101; i < 1200; i++) {
 656                                 nttmp = prng_successor(nttmp, 1);
 657                                 if (nttmp == nt2) break;
 658                         }
 659
 660                         if (i != 1200) {
 661                                 if (rtr != 0) {
 662                                         davg += i;
 663                                         dmin = MIN(dmin, i);
 664                                         dmax = MAX(dmax, i);
 665                                 }
 666                                 else {
 667                                         delta_time = auth2_time - auth1_time + 32;  // allow some slack for proper timing
 668                                 }
 669                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i);
 670                         }
 671                 }
 672
 673                 if (rtr <= 1)   return;
 674
 675                 davg = (davg + (rtr - 1)/2) / (rtr - 1);
 676
 677                 if (MF_DBGLEVEL >= 3) Dbprintf("min=%d max=%d avg=%d, delta_time=%d", dmin, dmax, davg, delta_time);
 678
 679                 dmin = davg - 2;
 680                 dmax = davg + 2;
 681
 682                 LED_B_OFF();
 683
 684         }
 685 //  -------------------------------------------------------------------------------------------------
 686
 687         LED_C_ON();
 688
 689         //  get crypted nonces for target sector
 690         for(i=0; i < 2; i++) { // look for exactly two different nonces
 691
 692                 target_nt[i] = 0;
 693                 while(target_nt[i] == 0) { // continue until we have an unambiguous nonce
 694
 695                         // prepare next select. No need to power down the card.
 696                         if(mifare_classic_halt(pcs, cuid)) {
 697                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 698                                 continue;
 699                         }
 700
 701                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 702                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 703                                 continue;
 704                         };
 705
 706                         auth1_time = 0;
 707                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 708                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 709                                 continue;
 710                         };
 711
 712                         // nested authentication
 713                         auth2_time = auth1_time + delta_time;
 714                         len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);
 715                         if (len != 4) {
 716                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error len=%d", len);
 717                                 continue;
 718                         };
 719
 720                         nt2 = bytes_to_num(receivedAnswer, 4);
 721                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);
 722
 723                         // Parity validity check
 724                         for (j = 0; j < 4; j++) {
 725                                 par_array[j] = (oddparity(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));
 726                         }
 727
 728                         ncount = 0;
 729                         nttest = prng_successor(nt1, dmin - 1);
 730                         for (j = dmin; j < dmax + 1; j++) {
 731                                 nttest = prng_successor(nttest, 1);
 732                                 ks1 = nt2 ^ nttest;
 733
 734                                 if (valid_nonce(nttest, nt2, ks1, par_array)){
 735                                         if (ncount > 0) {               // we are only interested in disambiguous nonces, try again
 736                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (ambigous), ntdist=%d", i+1, j);
 737                                                 target_nt[i] = 0;
 738                                                 break;
 739                                         }
 740                                         target_nt[i] = nttest;
 741                                         target_ks[i] = ks1;
 742                                         ncount++;
 743                                         if (i == 1 && target_nt[1] == target_nt[0]) { // we need two different nonces
 744                                                 target_nt[i] = 0;
 745                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#2: dismissed (= nonce#1), ntdist=%d", j);
 746                                                 break;
 747                                         }
 748                                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: valid, ntdist=%d", i+1, j);
 749                                 }
 750                         }
 751                         if (target_nt[i] == 0 && j == dmax+1 && MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (all invalid)", i+1);
 752                 }
 753         }
 754
 755         LED_C_OFF();
 756
 757         //  ----------------------------- crypto1 destroy
 758         crypto1_destroy(pcs);
 759
 760         byte_t buf[4 + 4 * 4];
 761         memcpy(buf, &cuid, 4);
 762         memcpy(buf+4, &target_nt[0], 4);
 763         memcpy(buf+8, &target_ks[0], 4);
 764         memcpy(buf+12, &target_nt[1], 4);
 765         memcpy(buf+16, &target_ks[1], 4);
 766
 767         LED_B_ON();
 768         cmd_send(CMD_ACK, 0, 2, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));
 769         LED_B_OFF();
 770
 771         if (MF_DBGLEVEL >= 3)   DbpString("NESTED FINISHED");
 772
 773         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 774         LEDsoff();
 775         set_tracing(TRUE);
 776 }
 777
 778 //-----------------------------------------------------------------------------
 779 // MIFARE check keys. key count up to 85.
 780 //
 781 //-----------------------------------------------------------------------------
 782 void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 783 {
 784   // params
 785         uint8_t blockNo = arg0;
 786         uint8_t keyType = arg1;
 787         uint8_t keyCount = arg2;
 788         uint64_t ui64Key = 0;
 789
 790         // variables
 791         int i;
 792         byte_t isOK = 0;
 793         uint8_t uid[10];
 794         uint32_t cuid;
 795         struct Crypto1State mpcs = {0, 0};
 796         struct Crypto1State *pcs;
 797         pcs = &mpcs;
 798
 799         // clear debug level
 800         int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
 801         MF_DBGLEVEL = MF_DBG_NONE;
 802
 803         // clear trace
 804         clear_trace();
 805         set_tracing(TRUE);
 806
 807         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 808
 809         LED_A_ON();
 810         LED_B_OFF();
 811         LED_C_OFF();
 812
 813         for (i = 0; i < keyCount; i++) {
 814                 if(mifare_classic_halt(pcs, cuid)) {
 815                         if (MF_DBGLEVEL >= 1)   Dbprintf("ChkKeys: Halt error");
 816                 }
 817
 818                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 819                         if (OLD_MF_DBGLEVEL >= 1)       Dbprintf("ChkKeys: Can't select card");
 820                         break;
 821                 };
 822
 823                 ui64Key = bytes_to_num(datain + i * 6, 6);
 824                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 825                         continue;
 826                 };
 827
 828                 isOK = 1;
 829                 break;
 830         }
 831
 832         //  ----------------------------- crypto1 destroy
 833         crypto1_destroy(pcs);
 834
 835         LED_B_ON();
 836     cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);
 837         LED_B_OFF();
 838
 839         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 840         LEDsoff();
 841
 842         // restore debug level
 843         MF_DBGLEVEL = OLD_MF_DBGLEVEL;
 844 }
 845
 846 //-----------------------------------------------------------------------------
 847 // MIFARE commands set debug level
 848 //
 849 //-----------------------------------------------------------------------------
 850 void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 851         MF_DBGLEVEL = arg0;
 852         Dbprintf("Debug level: %d", MF_DBGLEVEL);
 853 }
 854
 855 //-----------------------------------------------------------------------------
 856 // Work with emulator memory
 857 //
 858 //-----------------------------------------------------------------------------
 859 void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 860         emlClearMem();
 861 }
 862
 863 void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 864         emlSetMem(datain, arg0, arg1); // data, block num, blocks count
 865 }
 866
 867 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 868         byte_t buf[USB_CMD_DATA_SIZE];
 869         emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)
 870
 871         LED_B_ON();
 872         cmd_send(CMD_ACK,arg0,arg1,0,buf,USB_CMD_DATA_SIZE);
 873         LED_B_OFF();
 874 }
 875
 876 //-----------------------------------------------------------------------------
 877 // Load a card into the emulator memory
 878 //
 879 //-----------------------------------------------------------------------------
 880 void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 881         uint8_t numSectors = arg0;
 882         uint8_t keyType = arg1;
 883         uint64_t ui64Key = 0;
 884         uint32_t cuid;
 885         struct Crypto1State mpcs = {0, 0};
 886         struct Crypto1State *pcs;
 887         pcs = &mpcs;
 888
 889         // variables
 890         byte_t dataoutbuf[16];
 891         byte_t dataoutbuf2[16];
 892         uint8_t uid[10];
 893
 894         // clear trace
 895         clear_trace();
 896         set_tracing(false);
 897
 898         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 899
 900         LED_A_ON();
 901         LED_B_OFF();
 902         LED_C_OFF();
 903
 904         bool isOK = true;
 905
 906         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 907                 isOK = false;
 908                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 909         }
 910
 911         for (uint8_t sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {
 912                 ui64Key = emlGetKey(sectorNo, keyType);
 913                 if (sectorNo == 0){
 914                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 915                                 isOK = false;
 916                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth error", sectorNo);
 917                                 break;
 918                         }
 919                 } else {
 920                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_NESTED)) {
 921                                 isOK = false;
 922                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth nested error", sectorNo);
 923                                 break;
 924                         }
 925                 }
 926
 927                 for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 928                         if(isOK && mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {
 929                                 isOK = false;
 930                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Error reading sector %2d block %2d", sectorNo, blockNo);
 931                                 break;
 932                         };
 933                         if (isOK) {
 934                                 if (blockNo < NumBlocksPerSector(sectorNo) - 1) {
 935                                         emlSetMem(dataoutbuf, FirstBlockOfSector(sectorNo) + blockNo, 1);
 936                                 } else {        // sector trailer, keep the keys, set only the AC
 937                                         emlGetMem(dataoutbuf2, FirstBlockOfSector(sectorNo) + blockNo, 1);
 938                                         memcpy(&dataoutbuf2[6], &dataoutbuf[6], 4);
 939                                         emlSetMem(dataoutbuf2,  FirstBlockOfSector(sectorNo) + blockNo, 1);
 940                                 }
 941                         }
 942                 }
 943
 944         }
 945
 946         if(mifare_classic_halt(pcs, cuid)) {
 947                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 948         };
 949
 950         //  ----------------------------- crypto1 destroy
 951         crypto1_destroy(pcs);
 952
 953         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 954         LEDsoff();
 955
 956         if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");
 957
 958 }
 959
 960
 961 //-----------------------------------------------------------------------------
 962 // Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)
 963 //
 964 //-----------------------------------------------------------------------------
 965 void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 966
 967   // params
 968         uint8_t needWipe = arg0;
 969         // bit 0 - need get UID
 970         // bit 1 - need wupC
 971         // bit 2 - need HALT after sequence
 972         // bit 3 - need init FPGA and field before sequence
 973         // bit 4 - need reset FPGA and LED
 974         uint8_t workFlags = arg1;
 975         uint8_t blockNo = arg2;
 976
 977         // card commands
 978         uint8_t wupC1[]       = { 0x40 };
 979         uint8_t wupC2[]       = { 0x43 };
 980         uint8_t wipeC[]       = { 0x41 };
 981
 982         // variables
 983         byte_t isOK = 0;
 984         uint8_t uid[10] = {0x00};
 985         uint8_t d_block[18] = {0x00};
 986         uint32_t cuid;
 987
 988         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
 989         uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
 990
 991         // reset FPGA and LED
 992         if (workFlags & 0x08) {
 993                 LED_A_ON();
 994                 LED_B_OFF();
 995                 LED_C_OFF();
 996
 997                 clear_trace();
 998                 set_tracing(TRUE);
 999                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1000         }
1001
1002         while (true) {
1003
1004                 // get UID from chip
1005                 if (workFlags & 0x01) {
1006                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
1007                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
1008                                 break;
1009                         };
1010
1011                         if(mifare_classic_halt(NULL, cuid)) {
1012                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1013                                 break;
1014                         };
1015                 };
1016
1017                 // reset chip
1018                 if (needWipe){
1019                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1020                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1021                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1022                                 break;
1023                         };
1024
1025                         ReaderTransmit(wipeC, sizeof(wipeC), NULL);
1026                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1027                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wipeC error");
1028                                 break;
1029                         };
1030
1031                         if(mifare_classic_halt(NULL, cuid)) {
1032                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1033                                 break;
1034                         };
1035                 };
1036
1037                 // write block
1038                 if (workFlags & 0x02) {
1039                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1040                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1041                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1042                                 break;
1043                         };
1044
1045                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1046                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1047                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
1048                                 break;
1049                         };
1050                 }
1051
1052                 if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {
1053                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send command error");
1054                         break;
1055                 };
1056
1057                 memcpy(d_block, datain, 16);
1058                 AppendCrc14443a(d_block, 16);
1059
1060                 ReaderTransmit(d_block, sizeof(d_block), NULL);
1061                 if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) || (receivedAnswer[0] != 0x0a)) {
1062                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send data error");
1063                         break;
1064                 };
1065
1066                 if (workFlags & 0x04) {
1067                         if (mifare_classic_halt(NULL, cuid)) {
1068                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1069                                 break;
1070                         };
1071                 }
1072
1073                 isOK = 1;
1074                 break;
1075         }
1076
1077         LED_B_ON();
1078         cmd_send(CMD_ACK,isOK,0,0,uid,4);
1079         LED_B_OFF();
1080
1081         if ((workFlags & 0x10) || (!isOK)) {
1082                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1083                 LEDsoff();
1084         }
1085 }
1086
1087
1088 void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
1089
1090   // params
1091         // bit 1 - need wupC
1092         // bit 2 - need HALT after sequence
1093         // bit 3 - need init FPGA and field before sequence
1094         // bit 4 - need reset FPGA and LED
1095         uint8_t workFlags = arg0;
1096         uint8_t blockNo = arg2;
1097
1098         // card commands
1099         uint8_t wupC1[]       = { 0x40 };
1100         uint8_t wupC2[]       = { 0x43 };
1101
1102         // variables
1103         byte_t isOK = 0;
1104         uint8_t data[18] = {0x00};
1105         uint32_t cuid = 0;
1106
1107         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1108         uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1109
1110         if (workFlags & 0x08) {
1111                 LED_A_ON();
1112                 LED_B_OFF();
1113                 LED_C_OFF();
1114
1115                 clear_trace();
1116                 set_tracing(TRUE);
1117                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1118         }
1119
1120         while (true) {
1121                 if (workFlags & 0x02) {
1122                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1123                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1124                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1125                                 break;
1126                         };
1127
1128                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1129                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1130                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
1131                                 break;
1132                         };
1133                 }
1134
1135                 // read block
1136                 if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {
1137                         if (MF_DBGLEVEL >= 1)   Dbprintf("read block send command error");
1138                         break;
1139                 };
1140                 memcpy(data, receivedAnswer, 18);
1141
1142                 if (workFlags & 0x04) {
1143                         if (mifare_classic_halt(NULL, cuid)) {
1144                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1145                                 break;
1146                         };
1147                 }
1148
1149                 isOK = 1;
1150                 break;
1151         }
1152
1153         LED_B_ON();
1154         cmd_send(CMD_ACK,isOK,0,0,data,18);
1155         LED_B_OFF();
1156
1157         if ((workFlags & 0x10) || (!isOK)) {
1158                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1159                 LEDsoff();
1160         }
1161 }
1162
1163 void MifareCIdent(){
1164
1165         // card commands
1166         uint8_t wupC1[]       = { 0x40 };
1167         uint8_t wupC2[]       = { 0x43 };
1168
1169         // variables
1170         byte_t isOK = 1;
1171
1172         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1173         uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1174
1175         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1176         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1177                 isOK = 0;
1178         };
1179
1180         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1181         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1182                 isOK = 0;
1183         };
1184
1185         if (mifare_classic_halt(NULL, 0)) {
1186                 isOK = 0;
1187         };
1188
1189         cmd_send(CMD_ACK,isOK,0,0,0,0);
1190 }
1191
1192                         //
1193 // DESFIRE
1194 //
1195
1196 void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){
1197
1198         byte_t dataout[11] = {0x00};
1199         uint8_t uid[10] = {0x00};
1200         uint32_t cuid;
1201
1202         clear_trace();
1203         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1204
1205         int len = iso14443a_select_card(uid, NULL, &cuid);
1206         if(!len) {
1207                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");
1208                 OnError(1);
1209                 return;
1210         };
1211
1212         if(mifare_desfire_des_auth1(cuid, dataout)){
1213                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part1: Fail.");
1214                 OnError(4);
1215                 return;
1216         }
1217
1218         if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");
1219     cmd_send(CMD_ACK,1,cuid,0,dataout, sizeof(dataout));
1220 }
1221
1222 void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){
1223
1224         uint32_t cuid = arg0;
1225         uint8_t key[16] = {0x00};
1226         byte_t isOK = 0;
1227         byte_t dataout[12] = {0x00};
1228
1229         memcpy(key, datain, 16);
1230
1231         isOK = mifare_desfire_des_auth2(cuid, key, dataout);
1232
1233         if( isOK) {
1234             if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
1235                         Dbprintf("Authentication part2: Failed");
1236                 //OnError(4);
1237                 return;
1238         }
1239
1240         if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
1241                 DbpString("AUTH 2 FINISHED");
1242
1243         cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout));
1244         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1245         LEDsoff();
1246 }
1247
1248 void OnSuccess(){
1249         pcb_blocknum = 0;
1250         ReaderTransmit(deselect_cmd, 3 , NULL);
1251         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1252         LEDsoff();
1253 }
1254
1255 void OnError(uint8_t reason){
1256         pcb_blocknum = 0;
1257         ReaderTransmit(deselect_cmd, 3 , NULL);
1258         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1259         cmd_send(CMD_ACK,0,reason,0,0,0);
1260         LEDsoff();
1261 }