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

   1 //-----------------------------------------------------------------------------
   2 // Merlok - June 2011, 2012
   3 // Gerhard de Koning Gans - May 2008
   4 // Hagen Fritsch - June 2010
   5 // Midnitesnake - Dec 2013
   6 // Andy Davies  - Apr 2014
   7 // Iceman - May 2014
   8 //
   9 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
  10 // at your option, any later version. See the LICENSE.txt file for the text of
  11 // the license.
  12 //-----------------------------------------------------------------------------
  13 // Routines to support ISO 14443 type A.
  14 //-----------------------------------------------------------------------------
  15
  16 #include "mifarecmd.h"
  17 #include "apps.h"
  18 #include "util.h"
  19 #include "crc.h"
  20
  21 // the block number for the ISO14443-4 PCB
  22 uint8_t pcb_blocknum = 0;
  23 // Deselect card by sending a s-block. the crc is precalced for speed
  24 static  uint8_t deselect_cmd[] = {0xc2,0xe0,0xb4};
  25
  26 //-----------------------------------------------------------------------------
  27 // Select, Authenticate, Read a MIFARE tag.
  28 // read block
  29 //-----------------------------------------------------------------------------
  30 void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
  31 {
  32   // params
  33         uint8_t blockNo = arg0;
  34         uint8_t keyType = arg1;
  35         uint64_t ui64Key = 0;
  36         ui64Key = bytes_to_num(datain, 6);
  37
  38         // variables
  39         byte_t isOK = 0;
  40         byte_t dataoutbuf[16];
  41         uint8_t uid[10];
  42         uint32_t cuid;
  43         struct Crypto1State mpcs = {0, 0};
  44         struct Crypto1State *pcs;
  45         pcs = &mpcs;
  46
  47         // clear trace
  48         clear_trace();
  49         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
  50
  51         LED_A_ON();
  52         LED_B_OFF();
  53         LED_C_OFF();
  54
  55         while (true) {
  56                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
  57                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
  58                         break;
  59                 };
  60
  61                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
  62                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
  63                         break;
  64                 };
  65
  66                 if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {
  67                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read block error");
  68                         break;
  69                 };
  70
  71                 if(mifare_classic_halt(pcs, cuid)) {
  72                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
  73                         break;
  74                 };
  75
  76                 isOK = 1;
  77                 break;
  78         }
  79
  80         //  ----------------------------- crypto1 destroy
  81         crypto1_destroy(pcs);
  82
  83         if (MF_DBGLEVEL >= 2)   DbpString("READ BLOCK FINISHED");
  84
  85         LED_B_ON();
  86         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
  87         LED_B_OFF();
  88
  89         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
  90         LEDsoff();
  91 }
  92
  93 void MifareUC_Auth(uint8_t arg0, uint8_t *keybytes){
  94
  95         bool turnOffField = (arg0 == 1);
  96
  97         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
  98         clear_trace();
  99         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 100
 101         if(!iso14443a_select_card(NULL, NULL, NULL)) {
 102                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");
 103                 OnError(0);
 104                 return;
 105         };
 106
 107         if(!mifare_ultra_auth(keybytes)){
 108                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed");
 109                 OnError(1);
 110                 return;
 111         }
 112
 113         if (turnOffField) {
 114                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 115                 LEDsoff();
 116         }
 117         cmd_send(CMD_ACK,1,0,0,0,0);
 118 }
 119
 120 // Arg0 = BlockNo,
 121 // Arg1 = UsePwd bool
 122 // datain = PWD bytes,
 123 void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
 124 {
 125         uint8_t blockNo = arg0;
 126         byte_t dataout[16] = {0x00};
 127         bool useKey = (arg1 == 1); //UL_C
 128         bool usePwd = (arg1 == 2); //UL_EV1/NTAG
 129
 130         LEDsoff();
 131         LED_A_ON();
 132         clear_trace();
 133         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 134
 135         int len = iso14443a_select_card(NULL, NULL, NULL);
 136         if(!len) {
 137                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len);
 138                 OnError(1);
 139                 return;
 140         }
 141
 142         // UL-C authentication
 143         if ( useKey ) {
 144                 uint8_t key[16] = {0x00};
 145                 memcpy(key, datain, sizeof(key) );
 146
 147                 if ( !mifare_ultra_auth(key) ) {
 148                         OnError(1);
 149                         return;
 150                 }
 151         }
 152
 153         // UL-EV1 / NTAG authentication
 154         if ( usePwd ) {
 155                 uint8_t pwd[4] = {0x00};
 156                 memcpy(pwd, datain, 4);
 157                 uint8_t pack[4] = {0,0,0,0};
 158                 if (!mifare_ul_ev1_auth(pwd, pack)) {
 159                         OnError(1);
 160                         return;
 161                 }
 162         }
 163
 164         if( mifare_ultra_readblock(blockNo, dataout) ) {
 165                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");
 166                 OnError(2);
 167                 return;
 168         }
 169
 170         if( mifare_ultra_halt() ) {
 171                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
 172                 OnError(3);
 173                 return;
 174         }
 175
 176         cmd_send(CMD_ACK,1,0,0,dataout,16);
 177         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 178         LEDsoff();
 179 }
 180
 181 //-----------------------------------------------------------------------------
 182 // Select, Authenticate, Read a MIFARE tag.
 183 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)
 184 //-----------------------------------------------------------------------------
 185 void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 186 {
 187   // params
 188         uint8_t sectorNo = arg0;
 189         uint8_t keyType = arg1;
 190         uint64_t ui64Key = 0;
 191         ui64Key = bytes_to_num(datain, 6);
 192
 193         // variables
 194         byte_t isOK = 0;
 195         byte_t dataoutbuf[16 * 16];
 196         uint8_t uid[10];
 197         uint32_t cuid;
 198         struct Crypto1State mpcs = {0, 0};
 199         struct Crypto1State *pcs;
 200         pcs = &mpcs;
 201
 202         // clear trace
 203         clear_trace();
 204
 205         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 206
 207         LED_A_ON();
 208         LED_B_OFF();
 209         LED_C_OFF();
 210
 211         isOK = 1;
 212         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 213                 isOK = 0;
 214                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 215         }
 216
 217
 218         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 219                 isOK = 0;
 220                 if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 221         }
 222
 223         for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 224                 if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {
 225                         isOK = 0;
 226                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read sector %2d block %2d error", sectorNo, blockNo);
 227                         break;
 228                 }
 229         }
 230
 231         if(mifare_classic_halt(pcs, cuid)) {
 232                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 233         }
 234
 235         //  ----------------------------- crypto1 destroy
 236         crypto1_destroy(pcs);
 237
 238         if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
 239
 240         LED_B_ON();
 241         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16*NumBlocksPerSector(sectorNo));
 242         LED_B_OFF();
 243
 244         // Thats it...
 245         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 246         LEDsoff();
 247 }
 248
 249 // arg0 = blockNo (start)
 250 // arg1 = Pages (number of blocks)
 251 // arg2 = useKey
 252 // datain = KEY bytes
 253 void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)
 254 {
 255         // free eventually allocated BigBuf memory
 256         BigBuf_free();
 257         // clear trace
 258         clear_trace();
 259
 260         // params
 261         uint8_t blockNo = arg0;
 262         uint16_t blocks = arg1;
 263         bool useKey = (arg2 == 1); //UL_C
 264         bool usePwd = (arg2 == 2); //UL_EV1/NTAG
 265         uint32_t countblocks = 0;
 266         uint8_t *dataout = BigBuf_malloc(CARD_MEMORY_SIZE);
 267         if (dataout == NULL){
 268                 Dbprintf("out of memory");
 269                 OnError(1);
 270                 return;
 271         }
 272
 273         LEDsoff();
 274         LED_A_ON();
 275         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 276
 277         int len = iso14443a_select_card(NULL, NULL, NULL);
 278         if (!len) {
 279                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%d)",len);
 280                 OnError(1);
 281                 return;
 282         }
 283
 284         // UL-C authentication
 285         if ( useKey ) {
 286                 uint8_t key[16] = {0x00};
 287                 memcpy(key, datain, sizeof(key) );
 288
 289                 if ( !mifare_ultra_auth(key) ) {
 290                         OnError(1);
 291                         return;
 292                 }
 293         }
 294
 295         // UL-EV1 / NTAG authentication
 296         if (usePwd) {
 297                 uint8_t pwd[4] = {0x00};
 298                 memcpy(pwd, datain, sizeof(pwd));
 299                 uint8_t pack[4] = {0,0,0,0};
 300
 301                 if (!mifare_ul_ev1_auth(pwd, pack)){
 302                         OnError(1);
 303                         return;
 304                 }
 305         }
 306
 307         for (int i = 0; i < blocks; i++){
 308                 if ((i*4) + 4 > CARD_MEMORY_SIZE) {
 309                         Dbprintf("Data exceeds buffer!!");
 310                         break;
 311                 }
 312
 313                 len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i);
 314
 315                 if (len) {
 316                         if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);
 317                         // if no blocks read - error out
 318                         if (i==0){
 319                                 OnError(2);
 320                                 return;
 321                         } else {
 322                                 //stop at last successful read block and return what we got
 323                                 break;
 324                         }
 325                 } else {
 326                         countblocks++;
 327                 }
 328         }
 329
 330         len = mifare_ultra_halt();
 331         if (len) {
 332                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
 333                 OnError(3);
 334                 return;
 335         }
 336
 337         if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Blocks read %d", countblocks);
 338
 339         countblocks *= 4;
 340 /*
 341         LED_B_ON();
 342         for(size_t i=0; i < countblocks; i += USB_CMD_DATA_SIZE) {
 343                 size_t len = MIN((countblocks - i),USB_CMD_DATA_SIZE);
 344                 cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K,i,len,countblocks,dataout+i,len);
 345         }
 346 */
 347         cmd_send(CMD_ACK, 1, countblocks, BigBuf_max_traceLen(), 0, 0);
 348         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 349         LEDsoff();
 350 }
 351
 352 //-----------------------------------------------------------------------------
 353 // Select, Authenticate, Write a MIFARE tag.
 354 // read block
 355 //-----------------------------------------------------------------------------
 356 void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 357 {
 358         // params
 359         uint8_t blockNo = arg0;
 360         uint8_t keyType = arg1;
 361         uint64_t ui64Key = 0;
 362         byte_t blockdata[16];
 363
 364         ui64Key = bytes_to_num(datain, 6);
 365         memcpy(blockdata, datain + 10, 16);
 366
 367         // variables
 368         byte_t isOK = 0;
 369         uint8_t uid[10];
 370         uint32_t cuid;
 371         struct Crypto1State mpcs = {0, 0};
 372         struct Crypto1State *pcs;
 373         pcs = &mpcs;
 374
 375         // clear trace
 376         clear_trace();
 377
 378         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 379
 380         LED_A_ON();
 381         LED_B_OFF();
 382         LED_C_OFF();
 383
 384         while (true) {
 385                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 386                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 387                         break;
 388                 };
 389
 390                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 391                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 392                         break;
 393                 };
 394
 395                 if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {
 396                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 397                         break;
 398                 };
 399
 400                 if(mifare_classic_halt(pcs, cuid)) {
 401                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 402                         break;
 403                 };
 404
 405                 isOK = 1;
 406                 break;
 407         }
 408
 409         //  ----------------------------- crypto1 destroy
 410         crypto1_destroy(pcs);
 411
 412         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 413
 414         LED_B_ON();
 415         cmd_send(CMD_ACK,isOK,0,0,0,0);
 416         LED_B_OFF();
 417
 418
 419         // Thats it...
 420         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 421         LEDsoff();
 422 }
 423
 424 void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
 425 {
 426         uint8_t blockNo = arg0;
 427         byte_t blockdata[16] = {0x00};
 428
 429         memcpy(blockdata, datain, 16);
 430
 431         uint8_t uid[10] = {0x00};
 432
 433         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
 434
 435         clear_trace();
 436         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 437
 438         if(!iso14443a_select_card(uid, NULL, NULL)) {
 439                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 440                 OnError(0);
 441                 return;
 442         };
 443
 444         if(mifare_ultra_writeblock(blockNo, blockdata)) {
 445                 if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 446                 OnError(0);
 447                 return; };
 448
 449         if(mifare_ultra_halt()) {
 450                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 451                 OnError(0);
 452                 return;
 453         };
 454
 455         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 456
 457         cmd_send(CMD_ACK,1,0,0,0,0);
 458         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 459         LEDsoff();
 460 }
 461
 462 // Arg0   : Block to write to.
 463 // Arg1   : 0 = use no authentication.
 464 //          1 = use 0x1A authentication.
 465 //          2 = use 0x1B authentication.
 466 // datain : 4 first bytes is data to be written.
 467 //        : 4/16 next bytes is authentication key.
 468 void MifareUWriteBlock_Special(uint8_t arg0, uint8_t arg1, uint8_t *datain)
 469 {
 470         uint8_t blockNo = arg0;
 471         bool useKey = (arg1 == 1); //UL_C
 472         bool usePwd = (arg1 == 2); //UL_EV1/NTAG
 473         byte_t blockdata[4] = {0x00};
 474
 475         memcpy(blockdata, datain,4);
 476
 477         LEDsoff();
 478         LED_A_ON();
 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         // UL-C authentication
 489         if ( useKey ) {
 490                 uint8_t key[16] = {0x00};
 491                 memcpy(key, datain+4, sizeof(key) );
 492
 493                 if ( !mifare_ultra_auth(key) ) {
 494                         OnError(1);
 495                         return;
 496                 }
 497         }
 498
 499         // UL-EV1 / NTAG authentication
 500         if (usePwd) {
 501                 uint8_t pwd[4] = {0x00};
 502                 memcpy(pwd, datain+4, 4);
 503                 uint8_t pack[4] = {0,0,0,0};
 504                 if (!mifare_ul_ev1_auth(pwd, pack)) {
 505                         OnError(1);
 506                         return;
 507                 }
 508         }
 509
 510         if(mifare_ultra_special_writeblock(blockNo, blockdata)) {
 511                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 512                 OnError(0);
 513                 return;
 514         };
 515
 516         if(mifare_ultra_halt()) {
 517                 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
 518                 OnError(0);
 519                 return;
 520         };
 521
 522         if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
 523
 524         cmd_send(CMD_ACK,1,0,0,0,0);
 525         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 526         LEDsoff();
 527 }
 528
 529 void MifareUSetPwd(uint8_t arg0, uint8_t *datain){
 530
 531         uint8_t pwd[16] = {0x00};
 532         byte_t blockdata[4] = {0x00};
 533
 534         memcpy(pwd, datain, 16);
 535
 536         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
 537         clear_trace();
 538         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 539
 540         if(!iso14443a_select_card(NULL, NULL, NULL)) {
 541                 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
 542                 OnError(0);
 543                 return;
 544         };
 545
 546         blockdata[0] = pwd[7];
 547         blockdata[1] = pwd[6];
 548         blockdata[2] = pwd[5];
 549         blockdata[3] = pwd[4];
 550         if(mifare_ultra_special_writeblock( 44, blockdata)) {
 551                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 552                 OnError(44);
 553                 return;
 554         };
 555
 556         blockdata[0] = pwd[3];
 557         blockdata[1] = pwd[2];
 558         blockdata[2] = pwd[1];
 559         blockdata[3] = pwd[0];
 560         if(mifare_ultra_special_writeblock( 45, blockdata)) {
 561                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 562                 OnError(45);
 563                 return;
 564         };
 565
 566         blockdata[0] = pwd[15];
 567         blockdata[1] = pwd[14];
 568         blockdata[2] = pwd[13];
 569         blockdata[3] = pwd[12];
 570         if(mifare_ultra_special_writeblock( 46, blockdata)) {
 571                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 572                 OnError(46);
 573                 return;
 574         };
 575
 576         blockdata[0] = pwd[11];
 577         blockdata[1] = pwd[10];
 578         blockdata[2] = pwd[9];
 579         blockdata[3] = pwd[8];
 580         if(mifare_ultra_special_writeblock( 47, blockdata)) {
 581                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 582                 OnError(47);
 583                 return;
 584         };
 585
 586         if(mifare_ultra_halt()) {
 587                 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
 588                 OnError(0);
 589                 return;
 590         };
 591
 592         cmd_send(CMD_ACK,1,0,0,0,0);
 593         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 594         LEDsoff();
 595 }
 596
 597 // Return 1 if the nonce is invalid else return 0
 598 int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_t *parity) {
 599         return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \
 600         (oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \
 601         (oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;
 602 }
 603
 604
 605 //-----------------------------------------------------------------------------
 606 // MIFARE nested authentication.
 607 //
 608 //-----------------------------------------------------------------------------
 609 void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *datain)
 610 {
 611         // params
 612         uint8_t blockNo = arg0 & 0xff;
 613         uint8_t keyType = (arg0 >> 8) & 0xff;
 614         uint8_t targetBlockNo = arg1 & 0xff;
 615         uint8_t targetKeyType = (arg1 >> 8) & 0xff;
 616         uint64_t ui64Key = 0;
 617
 618         ui64Key = bytes_to_num(datain, 6);
 619
 620         // variables
 621         uint16_t rtr, i, j, len;
 622         uint16_t davg;
 623         static uint16_t dmin, dmax;
 624         uint8_t uid[10];
 625         uint32_t cuid, nt1, nt2, nttmp, nttest, ks1;
 626         uint8_t par[1];
 627         uint32_t target_nt[2], target_ks[2];
 628
 629         uint8_t par_array[4];
 630         uint16_t ncount = 0;
 631         struct Crypto1State mpcs = {0, 0};
 632         struct Crypto1State *pcs;
 633         pcs = &mpcs;
 634         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
 635
 636         uint32_t auth1_time, auth2_time;
 637         static uint16_t delta_time;
 638
 639         // free eventually allocated BigBuf memory
 640         BigBuf_free();
 641         // clear trace
 642         clear_trace();
 643         set_tracing(false);
 644
 645         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 646
 647         LED_A_ON();
 648         LED_C_OFF();
 649
 650
 651         // statistics on nonce distance
 652         if (calibrate) {        // for first call only. Otherwise reuse previous calibration
 653                 LED_B_ON();
 654                 WDT_HIT();
 655
 656                 davg = dmax = 0;
 657                 dmin = 2000;
 658                 delta_time = 0;
 659
 660                 for (rtr = 0; rtr < 17; rtr++) {
 661
 662                         // prepare next select. No need to power down the card.
 663                         if(mifare_classic_halt(pcs, cuid)) {
 664                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 665                                 rtr--;
 666                                 continue;
 667                         }
 668
 669                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 670                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 671                                 rtr--;
 672                                 continue;
 673                         };
 674
 675                         auth1_time = 0;
 676                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 677                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 678                                 rtr--;
 679                                 continue;
 680                         };
 681
 682                         if (delta_time) {
 683                                 auth2_time = auth1_time + delta_time;
 684                         } else {
 685                                 auth2_time = 0;
 686                         }
 687                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_NESTED, &nt2, &auth2_time)) {
 688                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error");
 689                                 rtr--;
 690                                 continue;
 691                         };
 692
 693                         nttmp = prng_successor(nt1, 100);                               //NXP Mifare is typical around 840,but for some unlicensed/compatible mifare card this can be 160
 694                         for (i = 101; i < 1200; i++) {
 695                                 nttmp = prng_successor(nttmp, 1);
 696                                 if (nttmp == nt2) break;
 697                         }
 698
 699                         if (i != 1200) {
 700                                 if (rtr != 0) {
 701                                         davg += i;
 702                                         dmin = MIN(dmin, i);
 703                                         dmax = MAX(dmax, i);
 704                                 }
 705                                 else {
 706                                         delta_time = auth2_time - auth1_time + 32;  // allow some slack for proper timing
 707                                 }
 708                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i);
 709                         }
 710                 }
 711
 712                 if (rtr <= 1)   return;
 713
 714                 davg = (davg + (rtr - 1)/2) / (rtr - 1);
 715
 716                 if (MF_DBGLEVEL >= 3) Dbprintf("min=%d max=%d avg=%d, delta_time=%d", dmin, dmax, davg, delta_time);
 717
 718                 dmin = davg - 2;
 719                 dmax = davg + 2;
 720
 721                 LED_B_OFF();
 722
 723         }
 724 //  -------------------------------------------------------------------------------------------------
 725
 726         LED_C_ON();
 727
 728         //  get crypted nonces for target sector
 729         for(i=0; i < 2; i++) { // look for exactly two different nonces
 730
 731                 target_nt[i] = 0;
 732                 while(target_nt[i] == 0) { // continue until we have an unambiguous nonce
 733
 734                         // prepare next select. No need to power down the card.
 735                         if(mifare_classic_halt(pcs, cuid)) {
 736                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 737                                 continue;
 738                         }
 739
 740                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 741                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 742                                 continue;
 743                         };
 744
 745                         auth1_time = 0;
 746                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 747                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 748                                 continue;
 749                         };
 750
 751                         // nested authentication
 752                         auth2_time = auth1_time + delta_time;
 753                         len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);
 754                         if (len != 4) {
 755                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error len=%d", len);
 756                                 continue;
 757                         };
 758
 759                         nt2 = bytes_to_num(receivedAnswer, 4);
 760                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);
 761
 762                         // Parity validity check
 763                         for (j = 0; j < 4; j++) {
 764                                 par_array[j] = (oddparity(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));
 765                         }
 766
 767                         ncount = 0;
 768                         nttest = prng_successor(nt1, dmin - 1);
 769                         for (j = dmin; j < dmax + 1; j++) {
 770                                 nttest = prng_successor(nttest, 1);
 771                                 ks1 = nt2 ^ nttest;
 772
 773                                 if (valid_nonce(nttest, nt2, ks1, par_array)){
 774                                         if (ncount > 0) {               // we are only interested in disambiguous nonces, try again
 775                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (ambigous), ntdist=%d", i+1, j);
 776                                                 target_nt[i] = 0;
 777                                                 break;
 778                                         }
 779                                         target_nt[i] = nttest;
 780                                         target_ks[i] = ks1;
 781                                         ncount++;
 782                                         if (i == 1 && target_nt[1] == target_nt[0]) { // we need two different nonces
 783                                                 target_nt[i] = 0;
 784                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#2: dismissed (= nonce#1), ntdist=%d", j);
 785                                                 break;
 786                                         }
 787                                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: valid, ntdist=%d", i+1, j);
 788                                 }
 789                         }
 790                         if (target_nt[i] == 0 && j == dmax+1 && MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (all invalid)", i+1);
 791                 }
 792         }
 793
 794         LED_C_OFF();
 795
 796         //  ----------------------------- crypto1 destroy
 797         crypto1_destroy(pcs);
 798
 799         byte_t buf[4 + 4 * 4];
 800         memcpy(buf, &cuid, 4);
 801         memcpy(buf+4, &target_nt[0], 4);
 802         memcpy(buf+8, &target_ks[0], 4);
 803         memcpy(buf+12, &target_nt[1], 4);
 804         memcpy(buf+16, &target_ks[1], 4);
 805
 806         LED_B_ON();
 807         cmd_send(CMD_ACK, 0, 2, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));
 808         LED_B_OFF();
 809
 810         if (MF_DBGLEVEL >= 3)   DbpString("NESTED FINISHED");
 811
 812         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 813         LEDsoff();
 814         set_tracing(TRUE);
 815 }
 816
 817 //-----------------------------------------------------------------------------
 818 // MIFARE check keys. key count up to 85.
 819 //
 820 //-----------------------------------------------------------------------------
 821 void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 822 {
 823   // params
 824         uint8_t blockNo = arg0;
 825         uint8_t keyType = arg1;
 826         uint8_t keyCount = arg2;
 827         uint64_t ui64Key = 0;
 828
 829         // variables
 830         int i;
 831         byte_t isOK = 0;
 832         uint8_t uid[10];
 833         uint32_t cuid;
 834         struct Crypto1State mpcs = {0, 0};
 835         struct Crypto1State *pcs;
 836         pcs = &mpcs;
 837
 838         // clear debug level
 839         int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
 840         MF_DBGLEVEL = MF_DBG_NONE;
 841
 842         // clear trace
 843         clear_trace();
 844         set_tracing(TRUE);
 845
 846         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 847
 848         LED_A_ON();
 849         LED_B_OFF();
 850         LED_C_OFF();
 851
 852         for (i = 0; i < keyCount; i++) {
 853                 if(mifare_classic_halt(pcs, cuid)) {
 854                         if (MF_DBGLEVEL >= 1)   Dbprintf("ChkKeys: Halt error");
 855                 }
 856
 857                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 858                         if (OLD_MF_DBGLEVEL >= 1)       Dbprintf("ChkKeys: Can't select card");
 859                         break;
 860                 };
 861
 862                 ui64Key = bytes_to_num(datain + i * 6, 6);
 863                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 864                         continue;
 865                 };
 866
 867                 isOK = 1;
 868                 break;
 869         }
 870
 871         //  ----------------------------- crypto1 destroy
 872         crypto1_destroy(pcs);
 873
 874         LED_B_ON();
 875     cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);
 876         LED_B_OFF();
 877
 878         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 879         LEDsoff();
 880
 881         // restore debug level
 882         MF_DBGLEVEL = OLD_MF_DBGLEVEL;
 883 }
 884
 885 //-----------------------------------------------------------------------------
 886 // MIFARE commands set debug level
 887 //
 888 //-----------------------------------------------------------------------------
 889 void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 890         MF_DBGLEVEL = arg0;
 891         Dbprintf("Debug level: %d", MF_DBGLEVEL);
 892 }
 893
 894 //-----------------------------------------------------------------------------
 895 // Work with emulator memory
 896 //
 897 //-----------------------------------------------------------------------------
 898 void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 899         emlClearMem();
 900 }
 901
 902 void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 903         emlSetMem(datain, arg0, arg1); // data, block num, blocks count
 904 }
 905
 906 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 907         byte_t buf[USB_CMD_DATA_SIZE];
 908         emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)
 909
 910         LED_B_ON();
 911         cmd_send(CMD_ACK,arg0,arg1,0,buf,USB_CMD_DATA_SIZE);
 912         LED_B_OFF();
 913 }
 914
 915 //-----------------------------------------------------------------------------
 916 // Load a card into the emulator memory
 917 //
 918 //-----------------------------------------------------------------------------
 919 void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 920         uint8_t numSectors = arg0;
 921         uint8_t keyType = arg1;
 922         uint64_t ui64Key = 0;
 923         uint32_t cuid;
 924         struct Crypto1State mpcs = {0, 0};
 925         struct Crypto1State *pcs;
 926         pcs = &mpcs;
 927
 928         // variables
 929         byte_t dataoutbuf[16];
 930         byte_t dataoutbuf2[16];
 931         uint8_t uid[10];
 932
 933         // clear trace
 934         clear_trace();
 935         set_tracing(false);
 936
 937         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 938
 939         LED_A_ON();
 940         LED_B_OFF();
 941         LED_C_OFF();
 942
 943         bool isOK = true;
 944
 945         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 946                 isOK = false;
 947                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 948         }
 949
 950         for (uint8_t sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {
 951                 ui64Key = emlGetKey(sectorNo, keyType);
 952                 if (sectorNo == 0){
 953                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 954                                 isOK = false;
 955                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth error", sectorNo);
 956                                 break;
 957                         }
 958                 } else {
 959                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_NESTED)) {
 960                                 isOK = false;
 961                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth nested error", sectorNo);
 962                                 break;
 963                         }
 964                 }
 965
 966                 for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 967                         if(isOK && mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {
 968                                 isOK = false;
 969                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Error reading sector %2d block %2d", sectorNo, blockNo);
 970                                 break;
 971                         };
 972                         if (isOK) {
 973                                 if (blockNo < NumBlocksPerSector(sectorNo) - 1) {
 974                                         emlSetMem(dataoutbuf, FirstBlockOfSector(sectorNo) + blockNo, 1);
 975                                 } else {        // sector trailer, keep the keys, set only the AC
 976                                         emlGetMem(dataoutbuf2, FirstBlockOfSector(sectorNo) + blockNo, 1);
 977                                         memcpy(&dataoutbuf2[6], &dataoutbuf[6], 4);
 978                                         emlSetMem(dataoutbuf2,  FirstBlockOfSector(sectorNo) + blockNo, 1);
 979                                 }
 980                         }
 981                 }
 982
 983         }
 984
 985         if(mifare_classic_halt(pcs, cuid)) {
 986                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 987         };
 988
 989         //  ----------------------------- crypto1 destroy
 990         crypto1_destroy(pcs);
 991
 992         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 993         LEDsoff();
 994
 995         if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");
 996
 997 }
 998
 999
1000 //-----------------------------------------------------------------------------
1001 // Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)
1002 //
1003 //-----------------------------------------------------------------------------
1004 void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
1005
1006   // params
1007         uint8_t needWipe = arg0;
1008         // bit 0 - need get UID
1009         // bit 1 - need wupC
1010         // bit 2 - need HALT after sequence
1011         // bit 3 - need init FPGA and field before sequence
1012         // bit 4 - need reset FPGA and LED
1013         uint8_t workFlags = arg1;
1014         uint8_t blockNo = arg2;
1015
1016         // card commands
1017         uint8_t wupC1[]       = { 0x40 };
1018         uint8_t wupC2[]       = { 0x43 };
1019         uint8_t wipeC[]       = { 0x41 };
1020
1021         // variables
1022         byte_t isOK = 0;
1023         uint8_t uid[10] = {0x00};
1024         uint8_t d_block[18] = {0x00};
1025         uint32_t cuid;
1026
1027         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1028         uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1029
1030         // reset FPGA and LED
1031         if (workFlags & 0x08) {
1032                 LED_A_ON();
1033                 LED_B_OFF();
1034                 LED_C_OFF();
1035
1036                 clear_trace();
1037                 set_tracing(TRUE);
1038                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1039         }
1040
1041         while (true) {
1042
1043                 // get UID from chip
1044                 if (workFlags & 0x01) {
1045                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
1046                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
1047                                 break;
1048                         };
1049
1050                         if(mifare_classic_halt(NULL, cuid)) {
1051                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1052                                 break;
1053                         };
1054                 };
1055
1056                 // reset chip
1057                 if (needWipe){
1058                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1059                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1060                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1061                                 break;
1062                         };
1063
1064                         ReaderTransmit(wipeC, sizeof(wipeC), NULL);
1065                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1066                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wipeC error");
1067                                 break;
1068                         };
1069
1070                         if(mifare_classic_halt(NULL, cuid)) {
1071                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1072                                 break;
1073                         };
1074                 };
1075
1076                 // write block
1077                 if (workFlags & 0x02) {
1078                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1079                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1080                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1081                                 break;
1082                         };
1083
1084                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1085                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1086                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
1087                                 break;
1088                         };
1089                 }
1090
1091                 if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {
1092                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send command error");
1093                         break;
1094                 };
1095
1096                 memcpy(d_block, datain, 16);
1097                 AppendCrc14443a(d_block, 16);
1098
1099                 ReaderTransmit(d_block, sizeof(d_block), NULL);
1100                 if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) || (receivedAnswer[0] != 0x0a)) {
1101                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send data error");
1102                         break;
1103                 };
1104
1105                 if (workFlags & 0x04) {
1106                         if (mifare_classic_halt(NULL, cuid)) {
1107                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1108                                 break;
1109                         };
1110                 }
1111
1112                 isOK = 1;
1113                 break;
1114         }
1115
1116         LED_B_ON();
1117         cmd_send(CMD_ACK,isOK,0,0,uid,4);
1118         LED_B_OFF();
1119
1120         if ((workFlags & 0x10) || (!isOK)) {
1121                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1122                 LEDsoff();
1123         }
1124 }
1125
1126
1127 void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
1128
1129   // params
1130         // bit 1 - need wupC
1131         // bit 2 - need HALT after sequence
1132         // bit 3 - need init FPGA and field before sequence
1133         // bit 4 - need reset FPGA and LED
1134         uint8_t workFlags = arg0;
1135         uint8_t blockNo = arg2;
1136
1137         // card commands
1138         uint8_t wupC1[]       = { 0x40 };
1139         uint8_t wupC2[]       = { 0x43 };
1140
1141         // variables
1142         byte_t isOK = 0;
1143         uint8_t data[18] = {0x00};
1144         uint32_t cuid = 0;
1145
1146         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1147         uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1148
1149         if (workFlags & 0x08) {
1150                 LED_A_ON();
1151                 LED_B_OFF();
1152                 LED_C_OFF();
1153
1154                 clear_trace();
1155                 set_tracing(TRUE);
1156                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1157         }
1158
1159         while (true) {
1160                 if (workFlags & 0x02) {
1161                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1162                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1163                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1164                                 break;
1165                         };
1166
1167                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1168                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1169                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
1170                                 break;
1171                         };
1172                 }
1173
1174                 // read block
1175                 if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {
1176                         if (MF_DBGLEVEL >= 1)   Dbprintf("read block send command error");
1177                         break;
1178                 };
1179                 memcpy(data, receivedAnswer, 18);
1180
1181                 if (workFlags & 0x04) {
1182                         if (mifare_classic_halt(NULL, cuid)) {
1183                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1184                                 break;
1185                         };
1186                 }
1187
1188                 isOK = 1;
1189                 break;
1190         }
1191
1192         LED_B_ON();
1193         cmd_send(CMD_ACK,isOK,0,0,data,18);
1194         LED_B_OFF();
1195
1196         if ((workFlags & 0x10) || (!isOK)) {
1197                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1198                 LEDsoff();
1199         }
1200 }
1201
1202 void MifareCIdent(){
1203
1204         // card commands
1205         uint8_t wupC1[]       = { 0x40 };
1206         uint8_t wupC2[]       = { 0x43 };
1207
1208         // variables
1209         byte_t isOK = 1;
1210
1211         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1212         uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1213
1214         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1215         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1216                 isOK = 0;
1217         };
1218
1219         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1220         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1221                 isOK = 0;
1222         };
1223
1224         if (mifare_classic_halt(NULL, 0)) {
1225                 isOK = 0;
1226         };
1227
1228         cmd_send(CMD_ACK,isOK,0,0,0,0);
1229 }
1230
1231                         //
1232 // DESFIRE
1233 //
1234
1235 void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){
1236
1237         byte_t dataout[11] = {0x00};
1238         uint8_t uid[10] = {0x00};
1239         uint32_t cuid;
1240
1241         clear_trace();
1242         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1243
1244         int len = iso14443a_select_card(uid, NULL, &cuid);
1245         if(!len) {
1246                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");
1247                 OnError(1);
1248                 return;
1249         };
1250
1251         if(mifare_desfire_des_auth1(cuid, dataout)){
1252                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part1: Fail.");
1253                 OnError(4);
1254                 return;
1255         }
1256
1257         if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");
1258     cmd_send(CMD_ACK,1,cuid,0,dataout, sizeof(dataout));
1259 }
1260
1261 void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){
1262
1263         uint32_t cuid = arg0;
1264         uint8_t key[16] = {0x00};
1265         byte_t isOK = 0;
1266         byte_t dataout[12] = {0x00};
1267
1268         memcpy(key, datain, 16);
1269
1270         isOK = mifare_desfire_des_auth2(cuid, key, dataout);
1271
1272         if( isOK) {
1273             if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
1274                         Dbprintf("Authentication part2: Failed");
1275                 //OnError(4);
1276                 return;
1277         }
1278
1279         if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
1280                 DbpString("AUTH 2 FINISHED");
1281
1282         cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout));
1283         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1284         LEDsoff();
1285 }
1286
1287 void OnSuccess(){
1288         pcb_blocknum = 0;
1289         ReaderTransmit(deselect_cmd, 3 , NULL);
1290         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1291         LEDsoff();
1292 }
1293
1294 void OnError(uint8_t reason){
1295         pcb_blocknum = 0;
1296         ReaderTransmit(deselect_cmd, 3 , NULL);
1297         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1298         cmd_send(CMD_ACK,0,reason,0,0,0);
1299         LEDsoff();
1300 }