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

   1 //-----------------------------------------------------------------------------
   2 // Merlok - June 2011, 2012
   3 // Gerhard de Koning Gans - May 2008
   4 // Hagen Fritsch - June 2010
   5 // Midnitesnake - Dec 2013
   6 // Andy Davies  - Apr 2014
   7 // Iceman - May 2014
   8 //
   9 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
  10 // at your option, any later version. See the LICENSE.txt file for the text of
  11 // the license.
  12 //-----------------------------------------------------------------------------
  13 // Routines to support ISO 14443 type A.
  14 //-----------------------------------------------------------------------------
  15
  16 #include "mifarecmd.h"
  17 #include "apps.h"
  18 #include "util.h"
  19
  20 #include "crc.h"
  21
  22 //-----------------------------------------------------------------------------
  23 // Select, Authenticate, Read a MIFARE tag.
  24 // read block
  25 //-----------------------------------------------------------------------------
  26 void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
  27 {
  28   // params
  29         uint8_t blockNo = arg0;
  30         uint8_t keyType = arg1;
  31         uint64_t ui64Key = 0;
  32         ui64Key = bytes_to_num(datain, 6);
  33
  34         // variables
  35         byte_t isOK = 0;
  36         byte_t dataoutbuf[16];
  37         uint8_t uid[10];
  38         uint32_t cuid;
  39         struct Crypto1State mpcs = {0, 0};
  40         struct Crypto1State *pcs;
  41         pcs = &mpcs;
  42
  43         // clear trace
  44         clear_trace();
  45         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
  46
  47         LED_A_ON();
  48         LED_B_OFF();
  49         LED_C_OFF();
  50
  51         while (true) {
  52                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
  53                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
  54                         break;
  55                 };
  56
  57                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
  58                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
  59                         break;
  60                 };
  61
  62                 if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {
  63                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read block error");
  64                         break;
  65                 };
  66
  67                 if(mifare_classic_halt(pcs, cuid)) {
  68                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
  69                         break;
  70                 };
  71
  72                 isOK = 1;
  73                 break;
  74         }
  75
  76         //  ----------------------------- crypto1 destroy
  77         crypto1_destroy(pcs);
  78
  79         if (MF_DBGLEVEL >= 2)   DbpString("READ BLOCK FINISHED");
  80
  81         LED_B_ON();
  82         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
  83         LED_B_OFF();
  84
  85         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
  86         LEDsoff();
  87 }
  88
  89 void MifareUC_Auth(uint8_t arg0, uint8_t *keybytes){
  90
  91         bool turnOffField = (arg0 == 1);
  92
  93         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
  94         clear_trace();
  95         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
  96
  97         if(!iso14443a_select_card(NULL, NULL, NULL)) {
  98                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");
  99                 OnError(0);
 100                 return;
 101         };
 102
 103         if(!mifare_ultra_auth(keybytes)){
 104                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed");
 105                 OnError(1);
 106                 return;
 107         }
 108
 109         if (turnOffField) {
 110                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 111                 LEDsoff();
 112         }
 113         cmd_send(CMD_ACK,1,0,0,0,0);
 114 }
 115
 116 // Arg0 = BlockNo,
 117 // Arg1 = UsePwd bool
 118 // datain = PWD bytes,
 119 void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
 120 {
 121         uint8_t blockNo = arg0;
 122         byte_t dataout[16] = {0x00};
 123         bool useKey = (arg1 == 1); //UL_C
 124         bool usePwd = (arg1 == 2); //UL_EV1/NTAG
 125
 126         LEDsoff();
 127         LED_A_ON();
 128         clear_trace();
 129         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 130
 131         int len = iso14443a_select_card(NULL, NULL, NULL);
 132         if(!len) {
 133                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len);
 134                 OnError(1);
 135                 return;
 136         }
 137
 138         // UL-C authentication
 139         if ( useKey ) {
 140                 uint8_t key[16] = {0x00};
 141                 memcpy(key, datain, sizeof(key) );
 142
 143                 if ( !mifare_ultra_auth(key) ) {
 144                         OnError(1);
 145                         return;
 146                 }
 147         }
 148
 149         // UL-EV1 / NTAG authentication
 150         if ( usePwd ) {
 151                 uint8_t pwd[4] = {0x00};
 152                 memcpy(pwd, datain, 4);
 153                 uint8_t pack[4] = {0,0,0,0};
 154                 if (!mifare_ul_ev1_auth(pwd, pack)) {
 155                         OnError(1);
 156                         return;
 157                 }
 158         }
 159
 160         if( mifare_ultra_readblock(blockNo, dataout) ) {
 161                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");
 162                 OnError(2);
 163                 return;
 164         }
 165
 166         if( mifare_ultra_halt() ) {
 167                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
 168                 OnError(3);
 169                 return;
 170         }
 171
 172     cmd_send(CMD_ACK,1,0,0,dataout,16);
 173         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 174         LEDsoff();
 175 }
 176
 177 //-----------------------------------------------------------------------------
 178 // Select, Authenticate, Read a MIFARE tag.
 179 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)
 180 //-----------------------------------------------------------------------------
 181 void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 182 {
 183   // params
 184         uint8_t sectorNo = arg0;
 185         uint8_t keyType = arg1;
 186         uint64_t ui64Key = 0;
 187         ui64Key = bytes_to_num(datain, 6);
 188
 189         // variables
 190         byte_t isOK = 0;
 191         byte_t dataoutbuf[16 * 16];
 192         uint8_t uid[10];
 193         uint32_t cuid;
 194         struct Crypto1State mpcs = {0, 0};
 195         struct Crypto1State *pcs;
 196         pcs = &mpcs;
 197
 198         // clear trace
 199         clear_trace();
 200
 201         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 202
 203         LED_A_ON();
 204         LED_B_OFF();
 205         LED_C_OFF();
 206
 207         isOK = 1;
 208         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 209                 isOK = 0;
 210                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 211         }
 212
 213
 214         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 215                 isOK = 0;
 216                 if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 217         }
 218
 219         for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 220                 if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {
 221                         isOK = 0;
 222                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read sector %2d block %2d error", sectorNo, blockNo);
 223                         break;
 224                 }
 225         }
 226
 227         if(mifare_classic_halt(pcs, cuid)) {
 228                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 229         }
 230
 231         //  ----------------------------- crypto1 destroy
 232         crypto1_destroy(pcs);
 233
 234         if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
 235
 236         LED_B_ON();
 237         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16*NumBlocksPerSector(sectorNo));
 238         LED_B_OFF();
 239
 240         // Thats it...
 241         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 242         LEDsoff();
 243 }
 244
 245 // arg0 = blockNo (start)
 246 // arg1 = Pages (number of blocks)
 247 // arg2 = useKey
 248 // datain = KEY bytes
 249 void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)
 250 {
 251         // free eventually allocated BigBuf memory
 252         BigBuf_free();
 253         clear_trace();
 254
 255         // params
 256         uint8_t blockNo = arg0;
 257         uint16_t blocks = arg1;
 258         bool useKey = (arg2 == 1); //UL_C
 259         bool usePwd = (arg2 == 2); //UL_EV1/NTAG
 260         uint32_t countblocks = 0;
 261         uint8_t *dataout = BigBuf_malloc(CARD_MEMORY_SIZE);
 262         if (dataout == NULL){
 263                 Dbprintf("out of memory");
 264                 OnError(1);
 265                 return;
 266         }
 267
 268         LEDsoff();
 269         LED_A_ON();
 270         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 271
 272         int len = iso14443a_select_card(NULL, NULL, NULL);
 273         if (!len) {
 274                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%d)",len);
 275                 OnError(1);
 276                 return;
 277         }
 278
 279         // UL-C authentication
 280         if ( useKey ) {
 281                 uint8_t key[16] = {0x00};
 282                 memcpy(key, datain, sizeof(key) );
 283
 284                 if ( !mifare_ultra_auth(key) ) {
 285                         OnError(1);
 286                         return;
 287                 }
 288         }
 289
 290         // UL-EV1 / NTAG authentication
 291         if (usePwd) {
 292                 uint8_t pwd[4] = {0x00};
 293                 memcpy(pwd, datain, sizeof(pwd));
 294                 uint8_t pack[4] = {0,0,0,0};
 295
 296                 if (!mifare_ul_ev1_auth(pwd, pack)){
 297                         OnError(1);
 298                         return;
 299                 }
 300         }
 301
 302         for (int i = 0; i < blocks; i++){
 303                 if ((i*4) + 4 > CARD_MEMORY_SIZE) {
 304                         Dbprintf("Data exceeds buffer!!");
 305                         break;
 306                 }
 307
 308                 len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i);
 309
 310                 if (len) {
 311                         if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);
 312                         // if no blocks read - error out
 313                         if (i==0){
 314                                 OnError(2);
 315                         return;
 316                         } else {
 317                                 //stop at last successful read block and return what we got
 318                                 break;
 319                         }
 320                 } else {
 321                         countblocks++;
 322                 }
 323         }
 324
 325         len = mifare_ultra_halt();
 326         if (len) {
 327                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
 328                 OnError(3);
 329                 return;
 330         }
 331
 332         if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Blocks read %d", countblocks);
 333
 334         countblocks *= 4;
 335         cmd_send(CMD_ACK, 1, countblocks, countblocks, 0, 0);
 336         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 337         LEDsoff();
 338 }
 339
 340 //-----------------------------------------------------------------------------
 341 // Select, Authenticate, Write a MIFARE tag.
 342 // read block
 343 //-----------------------------------------------------------------------------
 344 void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 345 {
 346         // params
 347         uint8_t blockNo = arg0;
 348         uint8_t keyType = arg1;
 349         uint64_t ui64Key = 0;
 350         byte_t blockdata[16];
 351
 352         ui64Key = bytes_to_num(datain, 6);
 353         memcpy(blockdata, datain + 10, 16);
 354
 355         // variables
 356         byte_t isOK = 0;
 357         uint8_t uid[10];
 358         uint32_t cuid;
 359         struct Crypto1State mpcs = {0, 0};
 360         struct Crypto1State *pcs;
 361         pcs = &mpcs;
 362
 363         // clear trace
 364         clear_trace();
 365
 366         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 367
 368         LED_A_ON();
 369         LED_B_OFF();
 370         LED_C_OFF();
 371
 372         while (true) {
 373                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 374                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 375                         break;
 376                 };
 377
 378                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 379                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 380                         break;
 381                 };
 382
 383                 if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {
 384                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 385                         break;
 386                 };
 387
 388                 if(mifare_classic_halt(pcs, cuid)) {
 389                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 390                         break;
 391                 };
 392
 393                 isOK = 1;
 394                 break;
 395         }
 396
 397         //  ----------------------------- crypto1 destroy
 398         crypto1_destroy(pcs);
 399
 400         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 401
 402         LED_B_ON();
 403         cmd_send(CMD_ACK,isOK,0,0,0,0);
 404         LED_B_OFF();
 405
 406
 407         // Thats it...
 408         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 409         LEDsoff();
 410 }
 411
 412 void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
 413 {
 414         uint8_t blockNo = arg0;
 415         byte_t blockdata[16] = {0x00};
 416
 417         memcpy(blockdata, datain, 16);
 418
 419         uint8_t uid[10] = {0x00};
 420
 421         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
 422
 423         clear_trace();
 424         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 425
 426         if(!iso14443a_select_card(uid, NULL, NULL)) {
 427                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 428                 OnError(0);
 429                 return;
 430         };
 431
 432         if(mifare_ultra_writeblock(blockNo, blockdata)) {
 433                 if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 434                 OnError(0);
 435                 return; };
 436
 437         if(mifare_ultra_halt()) {
 438                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 439                 OnError(0);
 440                 return;
 441         };
 442
 443         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 444
 445         cmd_send(CMD_ACK,1,0,0,0,0);
 446         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 447         LEDsoff();
 448 }
 449
 450 // Arg0   : Block to write to.
 451 // Arg1   : 0 = use no authentication.
 452 //          1 = use 0x1A authentication.
 453 //          2 = use 0x1B authentication.
 454 // datain : 4 first bytes is data to be written.
 455 //        : 4/16 next bytes is authentication key.
 456 void MifareUWriteBlock_Special(uint8_t arg0, uint8_t arg1, uint8_t *datain)
 457 {
 458         uint8_t blockNo = arg0;
 459         bool useKey = (arg1 == 1); //UL_C
 460         bool usePwd = (arg1 == 2); //UL_EV1/NTAG
 461         byte_t blockdata[4] = {0x00};
 462
 463         memcpy(blockdata, datain,4);
 464
 465         LEDsoff();
 466         LED_A_ON();
 467         clear_trace();
 468         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 469
 470         if(!iso14443a_select_card(NULL, NULL, NULL)) {
 471                 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
 472                 OnError(0);
 473                 return;
 474         };
 475
 476         // UL-C authentication
 477         if ( useKey ) {
 478                 uint8_t key[16] = {0x00};
 479                 memcpy(key, datain+4, sizeof(key) );
 480
 481                 if ( !mifare_ultra_auth(key) ) {
 482                         OnError(1);
 483                         return;
 484                 }
 485         }
 486
 487         // UL-EV1 / NTAG authentication
 488         if (usePwd) {
 489                 uint8_t pwd[4] = {0x00};
 490                 memcpy(pwd, datain+4, 4);
 491                 uint8_t pack[4] = {0,0,0,0};
 492                 if (!mifare_ul_ev1_auth(pwd, pack)) {
 493                         OnError(1);
 494                         return;
 495                 }
 496         }
 497
 498         if(mifare_ultra_special_writeblock(blockNo, blockdata)) {
 499                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 500                 OnError(0);
 501                 return;
 502         };
 503
 504         if(mifare_ultra_halt()) {
 505                 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
 506                 OnError(0);
 507                 return;
 508         };
 509
 510         if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
 511
 512         cmd_send(CMD_ACK,1,0,0,0,0);
 513         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 514         LEDsoff();
 515 }
 516
 517 void MifareUSetPwd(uint8_t arg0, uint8_t *datain){
 518
 519         uint8_t pwd[16] = {0x00};
 520         byte_t blockdata[4] = {0x00};
 521
 522         memcpy(pwd, datain, 16);
 523
 524         LED_A_ON(); LED_B_OFF(); LED_C_OFF();
 525         clear_trace();
 526         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 527
 528         if(!iso14443a_select_card(NULL, NULL, NULL)) {
 529                 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
 530                 OnError(0);
 531                 return;
 532         };
 533
 534         blockdata[0] = pwd[7];
 535         blockdata[1] = pwd[6];
 536         blockdata[2] = pwd[5];
 537         blockdata[3] = pwd[4];
 538         if(mifare_ultra_special_writeblock( 44, blockdata)) {
 539                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 540                 OnError(44);
 541                 return;
 542         };
 543
 544         blockdata[0] = pwd[3];
 545         blockdata[1] = pwd[2];
 546         blockdata[2] = pwd[1];
 547         blockdata[3] = pwd[0];
 548         if(mifare_ultra_special_writeblock( 45, blockdata)) {
 549                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 550                 OnError(45);
 551                 return;
 552         };
 553
 554         blockdata[0] = pwd[15];
 555         blockdata[1] = pwd[14];
 556         blockdata[2] = pwd[13];
 557         blockdata[3] = pwd[12];
 558         if(mifare_ultra_special_writeblock( 46, blockdata)) {
 559                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 560                 OnError(46);
 561                 return;
 562         };
 563
 564         blockdata[0] = pwd[11];
 565         blockdata[1] = pwd[10];
 566         blockdata[2] = pwd[9];
 567         blockdata[3] = pwd[8];
 568         if(mifare_ultra_special_writeblock( 47, blockdata)) {
 569                 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
 570                 OnError(47);
 571                 return;
 572         };
 573
 574         if(mifare_ultra_halt()) {
 575                 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
 576                 OnError(0);
 577                 return;
 578         };
 579
 580         cmd_send(CMD_ACK,1,0,0,0,0);
 581         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 582         LEDsoff();
 583 }
 584
 585 // Return 1 if the nonce is invalid else return 0
 586 int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_t *parity) {
 587         return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \
 588         (oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \
 589         (oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;
 590 }
 591
 592
 593 //-----------------------------------------------------------------------------
 594 // MIFARE nested authentication.
 595 //
 596 //-----------------------------------------------------------------------------
 597 void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *datain)
 598 {
 599         // params
 600         uint8_t blockNo = arg0 & 0xff;
 601         uint8_t keyType = (arg0 >> 8) & 0xff;
 602         uint8_t targetBlockNo = arg1 & 0xff;
 603         uint8_t targetKeyType = (arg1 >> 8) & 0xff;
 604         uint64_t ui64Key = 0;
 605
 606         ui64Key = bytes_to_num(datain, 6);
 607
 608         // variables
 609         uint16_t rtr, i, j, len;
 610         uint16_t davg;
 611         static uint16_t dmin, dmax;
 612         uint8_t uid[10];
 613         uint32_t cuid, nt1, nt2, nttmp, nttest, ks1;
 614         uint8_t par[1];
 615         uint32_t target_nt[2], target_ks[2];
 616
 617         uint8_t par_array[4];
 618         uint16_t ncount = 0;
 619         struct Crypto1State mpcs = {0, 0};
 620         struct Crypto1State *pcs;
 621         pcs = &mpcs;
 622         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
 623
 624         uint32_t auth1_time, auth2_time;
 625         static uint16_t delta_time;
 626
 627         // free eventually allocated BigBuf memory
 628         BigBuf_free();
 629         // clear trace
 630         clear_trace();
 631         set_tracing(false);
 632
 633         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 634
 635         LED_A_ON();
 636         LED_C_OFF();
 637
 638
 639         // statistics on nonce distance
 640         if (calibrate) {        // for first call only. Otherwise reuse previous calibration
 641                 LED_B_ON();
 642                 WDT_HIT();
 643
 644                 davg = dmax = 0;
 645                 dmin = 2000;
 646                 delta_time = 0;
 647
 648                 for (rtr = 0; rtr < 17; rtr++) {
 649
 650                         // prepare next select. No need to power down the card.
 651                         if(mifare_classic_halt(pcs, cuid)) {
 652                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 653                                 rtr--;
 654                                 continue;
 655                         }
 656
 657                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 658                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 659                                 rtr--;
 660                                 continue;
 661                         };
 662
 663                         auth1_time = 0;
 664                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 665                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 666                                 rtr--;
 667                                 continue;
 668                         };
 669
 670                         if (delta_time) {
 671                                 auth2_time = auth1_time + delta_time;
 672                         } else {
 673                                 auth2_time = 0;
 674                         }
 675                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_NESTED, &nt2, &auth2_time)) {
 676                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error");
 677                                 rtr--;
 678                                 continue;
 679                         };
 680
 681                         nttmp = prng_successor(nt1, 100);                               //NXP Mifare is typical around 840,but for some unlicensed/compatible mifare card this can be 160
 682                         for (i = 101; i < 1200; i++) {
 683                                 nttmp = prng_successor(nttmp, 1);
 684                                 if (nttmp == nt2) break;
 685                         }
 686
 687                         if (i != 1200) {
 688                                 if (rtr != 0) {
 689                                         davg += i;
 690                                         dmin = MIN(dmin, i);
 691                                         dmax = MAX(dmax, i);
 692                                 }
 693                                 else {
 694                                         delta_time = auth2_time - auth1_time + 32;  // allow some slack for proper timing
 695                                 }
 696                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i);
 697                         }
 698                 }
 699
 700                 if (rtr <= 1)   return;
 701
 702                 davg = (davg + (rtr - 1)/2) / (rtr - 1);
 703
 704                 if (MF_DBGLEVEL >= 3) Dbprintf("min=%d max=%d avg=%d, delta_time=%d", dmin, dmax, davg, delta_time);
 705
 706                 dmin = davg - 2;
 707                 dmax = davg + 2;
 708
 709                 LED_B_OFF();
 710
 711         }
 712 //  -------------------------------------------------------------------------------------------------
 713
 714         LED_C_ON();
 715
 716         //  get crypted nonces for target sector
 717         for(i=0; i < 2; i++) { // look for exactly two different nonces
 718
 719                 target_nt[i] = 0;
 720                 while(target_nt[i] == 0) { // continue until we have an unambiguous nonce
 721
 722                         // prepare next select. No need to power down the card.
 723                         if(mifare_classic_halt(pcs, cuid)) {
 724                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 725                                 continue;
 726                         }
 727
 728                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 729                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 730                                 continue;
 731                         };
 732
 733                         auth1_time = 0;
 734                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 735                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 736                                 continue;
 737                         };
 738
 739                         // nested authentication
 740                         auth2_time = auth1_time + delta_time;
 741                         len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);
 742                         if (len != 4) {
 743                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error len=%d", len);
 744                                 continue;
 745                         };
 746
 747                         nt2 = bytes_to_num(receivedAnswer, 4);
 748                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);
 749
 750                         // Parity validity check
 751                         for (j = 0; j < 4; j++) {
 752                                 par_array[j] = (oddparity(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));
 753                         }
 754
 755                         ncount = 0;
 756                         nttest = prng_successor(nt1, dmin - 1);
 757                         for (j = dmin; j < dmax + 1; j++) {
 758                                 nttest = prng_successor(nttest, 1);
 759                                 ks1 = nt2 ^ nttest;
 760
 761                                 if (valid_nonce(nttest, nt2, ks1, par_array)){
 762                                         if (ncount > 0) {               // we are only interested in disambiguous nonces, try again
 763                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (ambigous), ntdist=%d", i+1, j);
 764                                                 target_nt[i] = 0;
 765                                                 break;
 766                                         }
 767                                         target_nt[i] = nttest;
 768                                         target_ks[i] = ks1;
 769                                         ncount++;
 770                                         if (i == 1 && target_nt[1] == target_nt[0]) { // we need two different nonces
 771                                                 target_nt[i] = 0;
 772                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#2: dismissed (= nonce#1), ntdist=%d", j);
 773                                                 break;
 774                                         }
 775                                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: valid, ntdist=%d", i+1, j);
 776                                 }
 777                         }
 778                         if (target_nt[i] == 0 && j == dmax+1 && MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (all invalid)", i+1);
 779                 }
 780         }
 781
 782         LED_C_OFF();
 783
 784         //  ----------------------------- crypto1 destroy
 785         crypto1_destroy(pcs);
 786
 787         byte_t buf[4 + 4 * 4];
 788         memcpy(buf, &cuid, 4);
 789         memcpy(buf+4, &target_nt[0], 4);
 790         memcpy(buf+8, &target_ks[0], 4);
 791         memcpy(buf+12, &target_nt[1], 4);
 792         memcpy(buf+16, &target_ks[1], 4);
 793
 794         LED_B_ON();
 795         cmd_send(CMD_ACK, 0, 2, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));
 796         LED_B_OFF();
 797
 798         if (MF_DBGLEVEL >= 3)   DbpString("NESTED FINISHED");
 799
 800         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 801         LEDsoff();
 802         set_tracing(TRUE);
 803 }
 804
 805 //-----------------------------------------------------------------------------
 806 // MIFARE check keys. key count up to 85.
 807 //
 808 //-----------------------------------------------------------------------------
 809 void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 810 {
 811   // params
 812         uint8_t blockNo = arg0;
 813         uint8_t keyType = arg1;
 814         uint8_t keyCount = arg2;
 815         uint64_t ui64Key = 0;
 816
 817         // variables
 818         int i;
 819         byte_t isOK = 0;
 820         uint8_t uid[10];
 821         uint32_t cuid;
 822         struct Crypto1State mpcs = {0, 0};
 823         struct Crypto1State *pcs;
 824         pcs = &mpcs;
 825
 826         // clear debug level
 827         int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
 828         MF_DBGLEVEL = MF_DBG_NONE;
 829
 830         // clear trace
 831         clear_trace();
 832         set_tracing(TRUE);
 833
 834         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 835
 836         LED_A_ON();
 837         LED_B_OFF();
 838         LED_C_OFF();
 839
 840         for (i = 0; i < keyCount; i++) {
 841                 if(mifare_classic_halt(pcs, cuid)) {
 842                         if (MF_DBGLEVEL >= 1)   Dbprintf("ChkKeys: Halt error");
 843                 }
 844
 845                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 846                         if (OLD_MF_DBGLEVEL >= 1)       Dbprintf("ChkKeys: Can't select card");
 847                         break;
 848                 };
 849
 850                 ui64Key = bytes_to_num(datain + i * 6, 6);
 851                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 852                         continue;
 853                 };
 854
 855                 isOK = 1;
 856                 break;
 857         }
 858
 859         //  ----------------------------- crypto1 destroy
 860         crypto1_destroy(pcs);
 861
 862         LED_B_ON();
 863     cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);
 864         LED_B_OFF();
 865
 866         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 867         LEDsoff();
 868
 869         // restore debug level
 870         MF_DBGLEVEL = OLD_MF_DBGLEVEL;
 871 }
 872
 873 //-----------------------------------------------------------------------------
 874 // MIFARE commands set debug level
 875 //
 876 //-----------------------------------------------------------------------------
 877 void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 878         MF_DBGLEVEL = arg0;
 879         Dbprintf("Debug level: %d", MF_DBGLEVEL);
 880 }
 881
 882 //-----------------------------------------------------------------------------
 883 // Work with emulator memory
 884 //
 885 //-----------------------------------------------------------------------------
 886 void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 887         emlClearMem();
 888 }
 889
 890 void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 891         emlSetMem(datain, arg0, arg1); // data, block num, blocks count
 892 }
 893
 894 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 895         byte_t buf[USB_CMD_DATA_SIZE];
 896         emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)
 897
 898         LED_B_ON();
 899         cmd_send(CMD_ACK,arg0,arg1,0,buf,USB_CMD_DATA_SIZE);
 900         LED_B_OFF();
 901 }
 902
 903 //-----------------------------------------------------------------------------
 904 // Load a card into the emulator memory
 905 //
 906 //-----------------------------------------------------------------------------
 907 void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 908         uint8_t numSectors = arg0;
 909         uint8_t keyType = arg1;
 910         uint64_t ui64Key = 0;
 911         uint32_t cuid;
 912         struct Crypto1State mpcs = {0, 0};
 913         struct Crypto1State *pcs;
 914         pcs = &mpcs;
 915
 916         // variables
 917         byte_t dataoutbuf[16];
 918         byte_t dataoutbuf2[16];
 919         uint8_t uid[10];
 920
 921         // clear trace
 922         clear_trace();
 923         set_tracing(false);
 924
 925         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 926
 927         LED_A_ON();
 928         LED_B_OFF();
 929         LED_C_OFF();
 930
 931         bool isOK = true;
 932
 933         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 934                 isOK = false;
 935                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 936         }
 937
 938         for (uint8_t sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {
 939                 ui64Key = emlGetKey(sectorNo, keyType);
 940                 if (sectorNo == 0){
 941                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 942                                 isOK = false;
 943                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth error", sectorNo);
 944                                 break;
 945                         }
 946                 } else {
 947                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_NESTED)) {
 948                                 isOK = false;
 949                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth nested error", sectorNo);
 950                                 break;
 951                         }
 952                 }
 953
 954                 for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 955                         if(isOK && mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {
 956                                 isOK = false;
 957                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Error reading sector %2d block %2d", sectorNo, blockNo);
 958                                 break;
 959                         };
 960                         if (isOK) {
 961                                 if (blockNo < NumBlocksPerSector(sectorNo) - 1) {
 962                                         emlSetMem(dataoutbuf, FirstBlockOfSector(sectorNo) + blockNo, 1);
 963                                 } else {        // sector trailer, keep the keys, set only the AC
 964                                         emlGetMem(dataoutbuf2, FirstBlockOfSector(sectorNo) + blockNo, 1);
 965                                         memcpy(&dataoutbuf2[6], &dataoutbuf[6], 4);
 966                                         emlSetMem(dataoutbuf2,  FirstBlockOfSector(sectorNo) + blockNo, 1);
 967                                 }
 968                         }
 969                 }
 970
 971         }
 972
 973         if(mifare_classic_halt(pcs, cuid)) {
 974                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 975         };
 976
 977         //  ----------------------------- crypto1 destroy
 978         crypto1_destroy(pcs);
 979
 980         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 981         LEDsoff();
 982
 983         if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");
 984
 985 }
 986
 987
 988 //-----------------------------------------------------------------------------
 989 // Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)
 990 //
 991 //-----------------------------------------------------------------------------
 992 void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 993
 994   // params
 995         uint8_t needWipe = arg0;
 996         // bit 0 - need get UID
 997         // bit 1 - need wupC
 998         // bit 2 - need HALT after sequence
 999         // bit 3 - need init FPGA and field before sequence
1000         // bit 4 - need reset FPGA and LED
1001         uint8_t workFlags = arg1;
1002         uint8_t blockNo = arg2;
1003
1004         // card commands
1005         uint8_t wupC1[]       = { 0x40 };
1006         uint8_t wupC2[]       = { 0x43 };
1007         uint8_t wipeC[]       = { 0x41 };
1008
1009         // variables
1010         byte_t isOK = 0;
1011         uint8_t uid[10] = {0x00};
1012         uint8_t d_block[18] = {0x00};
1013         uint32_t cuid;
1014
1015         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1016         uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1017
1018         // reset FPGA and LED
1019         if (workFlags & 0x08) {
1020                 LED_A_ON();
1021                 LED_B_OFF();
1022                 LED_C_OFF();
1023
1024                 clear_trace();
1025                 set_tracing(TRUE);
1026                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1027         }
1028
1029         while (true) {
1030
1031                 // get UID from chip
1032                 if (workFlags & 0x01) {
1033                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
1034                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
1035                                 //break;
1036                         };
1037
1038                         if(mifare_classic_halt(NULL, cuid)) {
1039                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1040                                 //break;
1041                         };
1042                 };
1043
1044                 // reset chip
1045                 if (needWipe){
1046                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1047                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1048                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1049                                 break;
1050                         };
1051
1052                         ReaderTransmit(wipeC, sizeof(wipeC), NULL);
1053                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1054                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wipeC error");
1055                                 break;
1056                         };
1057
1058                         if(mifare_classic_halt(NULL, cuid)) {
1059                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1060                                 break;
1061                         };
1062                 };
1063
1064                 // write block
1065                 if (workFlags & 0x02) {
1066                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1067                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1068                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1069                                 break;
1070                         };
1071
1072                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1073                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1074                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
1075                                 break;
1076                         };
1077                 }
1078
1079                 if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {
1080                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send command error");
1081                         break;
1082                 };
1083
1084                 memcpy(d_block, datain, 16);
1085                 AppendCrc14443a(d_block, 16);
1086
1087                 ReaderTransmit(d_block, sizeof(d_block), NULL);
1088                 if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) || (receivedAnswer[0] != 0x0a)) {
1089                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send data error");
1090                         break;
1091                 };
1092
1093                 if (workFlags & 0x04) {
1094                         if (mifare_classic_halt(NULL, cuid)) {
1095                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1096                                 break;
1097                         };
1098                 }
1099
1100                 isOK = 1;
1101                 break;
1102         }
1103
1104         LED_B_ON();
1105         cmd_send(CMD_ACK,isOK,0,0,uid,4);
1106         LED_B_OFF();
1107
1108         if ((workFlags & 0x10) || (!isOK)) {
1109                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1110                 LEDsoff();
1111         }
1112 }
1113
1114
1115 void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
1116
1117   // params
1118         // bit 1 - need wupC
1119         // bit 2 - need HALT after sequence
1120         // bit 3 - need init FPGA and field before sequence
1121         // bit 4 - need reset FPGA and LED
1122         uint8_t workFlags = arg0;
1123         uint8_t blockNo = arg2;
1124
1125         // card commands
1126         uint8_t wupC1[]       = { 0x40 };
1127         uint8_t wupC2[]       = { 0x43 };
1128
1129         // variables
1130         byte_t isOK = 0;
1131         uint8_t data[18] = {0x00};
1132         uint32_t cuid = 0;
1133
1134         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1135         uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1136
1137         if (workFlags & 0x08) {
1138                 LED_A_ON();
1139                 LED_B_OFF();
1140                 LED_C_OFF();
1141
1142                 clear_trace();
1143                 set_tracing(TRUE);
1144                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1145         }
1146
1147         while (true) {
1148                 if (workFlags & 0x02) {
1149                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1150                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1151                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1152                                 break;
1153                         };
1154
1155                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1156                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1157                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
1158                                 break;
1159                         };
1160                 }
1161
1162                 // read block
1163                 if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {
1164                         if (MF_DBGLEVEL >= 1)   Dbprintf("read block send command error");
1165                         break;
1166                 };
1167                 memcpy(data, receivedAnswer, 18);
1168
1169                 if (workFlags & 0x04) {
1170                         if (mifare_classic_halt(NULL, cuid)) {
1171                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1172                                 break;
1173                         };
1174                 }
1175
1176                 isOK = 1;
1177                 break;
1178         }
1179
1180         LED_B_ON();
1181         cmd_send(CMD_ACK,isOK,0,0,data,18);
1182         LED_B_OFF();
1183
1184         if ((workFlags & 0x10) || (!isOK)) {
1185                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1186                 LEDsoff();
1187         }
1188 }
1189
1190 void MifareCIdent(){
1191
1192         // card commands
1193         uint8_t wupC1[]       = { 0x40 };
1194         uint8_t wupC2[]       = { 0x43 };
1195
1196         // variables
1197         byte_t isOK = 1;
1198
1199         uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1200         uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1201
1202         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1203         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1204                 isOK = 0;
1205         };
1206
1207         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1208         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1209                 isOK = 0;
1210         };
1211
1212         if (mifare_classic_halt(NULL, 0)) {
1213                 isOK = 0;
1214         };
1215
1216         cmd_send(CMD_ACK,isOK,0,0,0,0);
1217 }
1218
1219 void MifareCollectNonces(uint32_t arg0, uint32_t arg1){
1220
1221         BigBuf_free();
1222
1223         uint32_t iterations = arg0;
1224         uint8_t uid[10] = {0x00};
1225
1226         uint8_t *response = BigBuf_malloc(MAX_MIFARE_FRAME_SIZE);
1227         uint8_t *responsePar = BigBuf_malloc(MAX_MIFARE_PARITY_SIZE);
1228
1229         uint8_t mf_auth[] = { 0x60,0x00,0xf5,0x7b };
1230
1231         // get memory from BigBuf.
1232         uint8_t *nonces = BigBuf_malloc(iterations * 4);
1233
1234         LED_A_ON();
1235         LED_B_OFF();
1236         LED_C_OFF();
1237
1238         clear_trace();
1239         set_tracing(TRUE);
1240         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1241
1242         for (int i = 0; i < iterations; i++) {
1243
1244                 WDT_HIT();
1245
1246                 // Test if the action was cancelled
1247                 if(BUTTON_PRESS()) break;
1248
1249                 //              if(mifare_classic_halt(pcs, cuid)) {
1250                 //                      if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
1251                 //}
1252
1253                 if(!iso14443a_select_card(uid, NULL, NULL)) {
1254                         if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
1255                         continue;
1256                 };
1257
1258                 // Transmit MIFARE_CLASSIC_AUTH.
1259                 ReaderTransmit(mf_auth, sizeof(mf_auth), NULL);
1260
1261                 // Receive the (4 Byte) "random" nonce
1262                 if (!ReaderReceive(response, responsePar)) {
1263                         if (MF_DBGLEVEL >= 1)   Dbprintf("Couldn't receive tag nonce");
1264                         continue;
1265                 }
1266
1267                 nonces[i*4] = bytes_to_num(response, 4);
1268         }
1269
1270         int packLen =  iterations * 4;
1271         int packSize = 0;
1272         int packNum = 0;
1273         while (packLen > 0) {
1274                 packSize = MIN(USB_CMD_DATA_SIZE, packLen);
1275                 LED_B_ON();
1276                 cmd_send(CMD_ACK, 77, 0, packSize, nonces - packLen, packSize);
1277                 LED_B_OFF();
1278
1279                 packLen -= packSize;
1280                 packNum++;
1281         }
1282         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1283         LEDsoff();
1284 }
1285
1286 //
1287 // DESFIRE
1288 //
1289
1290 void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){
1291
1292         byte_t dataout[11] = {0x00};
1293         uint8_t uid[10] = {0x00};
1294         uint32_t cuid = 0x00;
1295
1296         clear_trace();
1297         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1298
1299         int len = iso14443a_select_card(uid, NULL, &cuid);
1300         if(!len) {
1301                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");
1302                 OnError(1);
1303                 return;
1304         };
1305
1306         if(mifare_desfire_des_auth1(cuid, dataout)){
1307                 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part1: Fail.");
1308                 OnError(4);
1309                 return;
1310         }
1311
1312         if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");
1313     cmd_send(CMD_ACK,1,cuid,0,dataout, sizeof(dataout));
1314 }
1315
1316 void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){
1317
1318         uint32_t cuid = arg0;
1319         uint8_t key[16] = {0x00};
1320         byte_t dataout[12] = {0x00};
1321         byte_t isOK = 0;
1322
1323         memcpy(key, datain, 16);
1324
1325         isOK = mifare_desfire_des_auth2(cuid, key, dataout);
1326
1327         if( isOK) {
1328             if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed");
1329                 OnError(4);
1330                 return;
1331         }
1332
1333         if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 2 FINISHED");
1334
1335         cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout));
1336         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1337         LEDsoff();
1338 }