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