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
  19 //-----------------------------------------------------------------------------
  20 // Select, Authenticate, Read a MIFARE tag.
  21 // read block
  22 //-----------------------------------------------------------------------------
  23 void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
  24 {
  25   // params
  26         uint8_t blockNo = arg0;
  27         uint8_t keyType = arg1;
  28         uint64_t ui64Key = 0;
  29         ui64Key = bytes_to_num(datain, 6);
  30
  31         // variables
  32         byte_t isOK = 0;
  33         byte_t dataoutbuf[16];
  34         uint8_t uid[10];
  35         uint32_t cuid;
  36         struct Crypto1State mpcs = {0, 0};
  37         struct Crypto1State *pcs;
  38         pcs = &mpcs;
  39
  40         // clear trace
  41         iso14a_clear_trace();
  42         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
  43
  44         LED_A_ON();
  45         LED_B_OFF();
  46         LED_C_OFF();
  47
  48         while (true) {
  49                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
  50                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
  51                         break;
  52                 };
  53
  54                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
  55                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
  56                         break;
  57                 };
  58
  59                 if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {
  60                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read block error");
  61                         break;
  62                 };
  63
  64                 if(mifare_classic_halt(pcs, cuid)) {
  65                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
  66                         break;
  67                 };
  68
  69                 isOK = 1;
  70                 break;
  71         }
  72
  73         //  ----------------------------- crypto1 destroy
  74         crypto1_destroy(pcs);
  75
  76         if (MF_DBGLEVEL >= 2)   DbpString("READ BLOCK FINISHED");
  77
  78         LED_B_ON();
  79         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
  80         LED_B_OFF();
  81
  82         // Thats it...
  83         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
  84         LEDsoff();
  85 }
  86
  87 void MifareUReadBlock(uint8_t arg0,uint8_t *datain)
  88 {
  89     // params
  90         uint8_t blockNo = arg0;
  91
  92         // variables
  93         byte_t isOK = 0;
  94         byte_t dataoutbuf[16];
  95         uint8_t uid[10];
  96         uint32_t cuid;
  97
  98         // clear trace
  99         iso14a_clear_trace();
 100         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 101
 102         LED_A_ON();
 103         LED_B_OFF();
 104         LED_C_OFF();
 105
 106         while (true) {
 107                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 108             if (MF_DBGLEVEL >= 1)       Dbprintf("Can't select card");
 109                         break;
 110                 };
 111
 112                 if(mifare_ultra_readblock(cuid, blockNo, dataoutbuf)) {
 113             if (MF_DBGLEVEL >= 1)       Dbprintf("Read block error");
 114                         break;
 115                 };
 116
 117                 if(mifare_ultra_halt(cuid)) {
 118             if (MF_DBGLEVEL >= 1)       Dbprintf("Halt error");
 119                         break;
 120                 };
 121
 122                 isOK = 1;
 123                 break;
 124         }
 125
 126         if (MF_DBGLEVEL >= 2)   DbpString("READ BLOCK FINISHED");
 127
 128         LED_B_ON();
 129     cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
 130         LED_B_OFF();
 131         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 132         LEDsoff();
 133 }
 134
 135 //-----------------------------------------------------------------------------
 136 // Select, Authenticate, Read a MIFARE tag.
 137 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)
 138 //-----------------------------------------------------------------------------
 139 void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 140 {
 141   // params
 142         uint8_t sectorNo = arg0;
 143         uint8_t keyType = arg1;
 144         uint64_t ui64Key = 0;
 145         ui64Key = bytes_to_num(datain, 6);
 146
 147         // variables
 148         byte_t isOK = 0;
 149         byte_t dataoutbuf[16 * 16];
 150         uint8_t uid[10];
 151         uint32_t cuid;
 152         struct Crypto1State mpcs = {0, 0};
 153         struct Crypto1State *pcs;
 154         pcs = &mpcs;
 155
 156         // clear trace
 157         iso14a_clear_trace();
 158
 159         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 160
 161         LED_A_ON();
 162         LED_B_OFF();
 163         LED_C_OFF();
 164
 165         isOK = 1;
 166         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 167                 isOK = 0;
 168                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 169         }
 170
 171
 172         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 173                 isOK = 0;
 174                 if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 175         }
 176
 177         for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 178                 if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {
 179                         isOK = 0;
 180                         if (MF_DBGLEVEL >= 1)   Dbprintf("Read sector %2d block %2d error", sectorNo, blockNo);
 181                         break;
 182                 }
 183         }
 184
 185         if(mifare_classic_halt(pcs, cuid)) {
 186                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 187         }
 188
 189         //  ----------------------------- crypto1 destroy
 190         crypto1_destroy(pcs);
 191
 192         if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
 193
 194         LED_B_ON();
 195         cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16*NumBlocksPerSector(sectorNo));
 196         LED_B_OFF();
 197
 198         // Thats it...
 199         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 200         LEDsoff();
 201 }
 202
 203
 204 void MifareUReadCard(uint8_t arg0, uint8_t *datain)
 205 {
 206   // params
 207         uint8_t sectorNo = arg0;
 208
 209         // variables
 210         byte_t isOK = 0;
 211         byte_t dataoutbuf[16 * 4];
 212         uint8_t uid[10];
 213         uint32_t cuid;
 214
 215         // clear trace
 216         iso14a_clear_trace();
 217
 218                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 219
 220         LED_A_ON();
 221         LED_B_OFF();
 222         LED_C_OFF();
 223
 224         while (true) {
 225                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 226                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 227                         break;
 228                 };
 229                 for(int sec=0;sec<16;sec++){
 230                     if(mifare_ultra_readblock(cuid, sectorNo * 4 + sec, dataoutbuf + 4 * sec)) {
 231                     if (MF_DBGLEVEL >= 1)   Dbprintf("Read block %d error",sec);
 232                         break;
 233                     };
 234                 }
 235                 if(mifare_ultra_halt(cuid)) {
 236                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 237                         break;
 238                 };
 239
 240                 isOK = 1;
 241                 break;
 242         }
 243
 244         if (MF_DBGLEVEL >= 2) DbpString("READ CARD FINISHED");
 245
 246         LED_B_ON();
 247                 cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,64);
 248         LED_B_OFF();
 249
 250         // Thats it...
 251         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 252         LEDsoff();
 253
 254 }
 255
 256
 257 //-----------------------------------------------------------------------------
 258 // Select, Authenticate, Write a MIFARE tag.
 259 // read block
 260 //-----------------------------------------------------------------------------
 261 void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 262 {
 263         // params
 264         uint8_t blockNo = arg0;
 265         uint8_t keyType = arg1;
 266         uint64_t ui64Key = 0;
 267         byte_t blockdata[16];
 268
 269         ui64Key = bytes_to_num(datain, 6);
 270         memcpy(blockdata, datain + 10, 16);
 271
 272         // variables
 273         byte_t isOK = 0;
 274         uint8_t uid[10];
 275         uint32_t cuid;
 276         struct Crypto1State mpcs = {0, 0};
 277         struct Crypto1State *pcs;
 278         pcs = &mpcs;
 279
 280         // clear trace
 281         iso14a_clear_trace();
 282
 283         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 284
 285         LED_A_ON();
 286         LED_B_OFF();
 287         LED_C_OFF();
 288
 289         while (true) {
 290                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 291                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 292                         break;
 293                 };
 294
 295                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 296                         if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");
 297                         break;
 298                 };
 299
 300                 if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {
 301                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 302                         break;
 303                 };
 304
 305                 if(mifare_classic_halt(pcs, cuid)) {
 306                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 307                         break;
 308                 };
 309
 310                 isOK = 1;
 311                 break;
 312         }
 313
 314         //  ----------------------------- crypto1 destroy
 315         crypto1_destroy(pcs);
 316
 317         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 318
 319         LED_B_ON();
 320         cmd_send(CMD_ACK,isOK,0,0,0,0);
 321         LED_B_OFF();
 322
 323
 324         // Thats it...
 325         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 326         LEDsoff();
 327 }
 328
 329 void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
 330 {
 331         // params
 332         uint8_t blockNo = arg0;
 333         byte_t blockdata[16];
 334
 335         memset(blockdata,'\0',16);
 336         memcpy(blockdata, datain,16);
 337
 338         // variables
 339         byte_t isOK = 0;
 340         uint8_t uid[10];
 341         uint32_t cuid;
 342
 343         // clear trace
 344         iso14a_clear_trace();
 345
 346                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 347
 348         LED_A_ON();
 349         LED_B_OFF();
 350         LED_C_OFF();
 351
 352         while (true) {
 353                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 354                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 355                         break;
 356                 };
 357
 358                 if(mifare_ultra_writeblock(cuid, blockNo, blockdata)) {
 359                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 360                         break;
 361                 };
 362
 363                 if(mifare_ultra_halt(cuid)) {
 364                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 365                         break;
 366                 };
 367
 368                 isOK = 1;
 369                 break;
 370         }
 371
 372         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 373
 374         LED_B_ON();
 375                 cmd_send(CMD_ACK,isOK,0,0,0,0);
 376         LED_B_OFF();
 377
 378
 379         // Thats it...
 380         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 381         LEDsoff();
 382 //  iso14a_set_tracing(TRUE);
 383 }
 384
 385 void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
 386 {
 387         // params
 388         uint8_t blockNo = arg0;
 389         byte_t blockdata[4];
 390
 391         memcpy(blockdata, datain,4);
 392
 393         // variables
 394         byte_t isOK = 0;
 395         uint8_t uid[10];
 396         uint32_t cuid;
 397
 398         // clear trace
 399         iso14a_clear_trace();
 400
 401         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 402
 403         LED_A_ON();
 404         LED_B_OFF();
 405         LED_C_OFF();
 406
 407         while (true) {
 408                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 409                         if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 410                         break;
 411                 };
 412
 413                 if(mifare_ultra_special_writeblock(cuid, blockNo, blockdata)) {
 414                         if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
 415                         break;
 416                 };
 417
 418                 if(mifare_ultra_halt(cuid)) {
 419                         if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 420                         break;
 421                 };
 422
 423                 isOK = 1;
 424                 break;
 425         }
 426
 427         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 428
 429         LED_B_ON();
 430         cmd_send(CMD_ACK,isOK,0,0,0,0);
 431         LED_B_OFF();
 432
 433         // Thats it...
 434         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 435         LEDsoff();
 436 }
 437
 438 // Return 1 if the nonce is invalid else return 0
 439 int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_t *parity) {
 440         return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \
 441         (oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \
 442         (oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;
 443 }
 444
 445
 446 //-----------------------------------------------------------------------------
 447 // MIFARE nested authentication.
 448 //
 449 //-----------------------------------------------------------------------------
 450 void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *datain)
 451 {
 452         // params
 453         uint8_t blockNo = arg0 & 0xff;
 454         uint8_t keyType = (arg0 >> 8) & 0xff;
 455         uint8_t targetBlockNo = arg1 & 0xff;
 456         uint8_t targetKeyType = (arg1 >> 8) & 0xff;
 457         uint64_t ui64Key = 0;
 458
 459         ui64Key = bytes_to_num(datain, 6);
 460
 461         // variables
 462         uint16_t rtr, i, j, len;
 463         uint16_t davg;
 464         static uint16_t dmin, dmax;
 465         uint8_t uid[10];
 466         uint32_t cuid, nt1, nt2, nttmp, nttest, ks1;
 467         uint8_t par[1];
 468         uint32_t target_nt[2], target_ks[2];
 469
 470         uint8_t par_array[4];
 471         uint16_t ncount = 0;
 472         struct Crypto1State mpcs = {0, 0};
 473         struct Crypto1State *pcs;
 474         pcs = &mpcs;
 475         uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();
 476
 477         uint32_t auth1_time, auth2_time;
 478         static uint16_t delta_time;
 479
 480         // clear trace
 481         iso14a_clear_trace();
 482         iso14a_set_tracing(false);
 483
 484         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 485
 486         LED_A_ON();
 487         LED_C_OFF();
 488
 489
 490         // statistics on nonce distance
 491         if (calibrate) {        // for first call only. Otherwise reuse previous calibration
 492                 LED_B_ON();
 493                 WDT_HIT();
 494
 495                 davg = dmax = 0;
 496                 dmin = 2000;
 497                 delta_time = 0;
 498
 499                 for (rtr = 0; rtr < 17; rtr++) {
 500
 501                         // prepare next select. No need to power down the card.
 502                         if(mifare_classic_halt(pcs, cuid)) {
 503                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 504                                 rtr--;
 505                                 continue;
 506                         }
 507
 508                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 509                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 510                                 rtr--;
 511                                 continue;
 512                         };
 513
 514                         auth1_time = 0;
 515                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 516                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 517                                 rtr--;
 518                                 continue;
 519                         };
 520
 521                         if (delta_time) {
 522                                 auth2_time = auth1_time + delta_time;
 523                         } else {
 524                                 auth2_time = 0;
 525                         }
 526                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_NESTED, &nt2, &auth2_time)) {
 527                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error");
 528                                 rtr--;
 529                                 continue;
 530                         };
 531
 532                         nttmp = prng_successor(nt1, 100);                               //NXP Mifare is typical around 840,but for some unlicensed/compatible mifare card this can be 160
 533                         for (i = 101; i < 1200; i++) {
 534                                 nttmp = prng_successor(nttmp, 1);
 535                                 if (nttmp == nt2) break;
 536                         }
 537
 538                         if (i != 1200) {
 539                                 if (rtr != 0) {
 540                                         davg += i;
 541                                         dmin = MIN(dmin, i);
 542                                         dmax = MAX(dmax, i);
 543                                 }
 544                                 else {
 545                                         delta_time = auth2_time - auth1_time + 32;  // allow some slack for proper timing
 546                                 }
 547                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i);
 548                         }
 549                 }
 550
 551                 if (rtr <= 1)   return;
 552
 553                 davg = (davg + (rtr - 1)/2) / (rtr - 1);
 554
 555                 if (MF_DBGLEVEL >= 3) Dbprintf("min=%d max=%d avg=%d, delta_time=%d", dmin, dmax, davg, delta_time);
 556
 557                 dmin = davg - 2;
 558                 dmax = davg + 2;
 559
 560                 LED_B_OFF();
 561
 562         }
 563 //  -------------------------------------------------------------------------------------------------
 564
 565         LED_C_ON();
 566
 567         //  get crypted nonces for target sector
 568         for(i=0; i < 2; i++) { // look for exactly two different nonces
 569
 570                 target_nt[i] = 0;
 571                 while(target_nt[i] == 0) { // continue until we have an unambiguous nonce
 572
 573                         // prepare next select. No need to power down the card.
 574                         if(mifare_classic_halt(pcs, cuid)) {
 575                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");
 576                                 continue;
 577                         }
 578
 579                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 580                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");
 581                                 continue;
 582                         };
 583
 584                         auth1_time = 0;
 585                         if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
 586                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");
 587                                 continue;
 588                         };
 589
 590                         // nested authentication
 591                         auth2_time = auth1_time + delta_time;
 592                         len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);
 593                         if (len != 4) {
 594                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error len=%d", len);
 595                                 continue;
 596                         };
 597
 598                         nt2 = bytes_to_num(receivedAnswer, 4);
 599                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);
 600
 601                         // Parity validity check
 602                         for (j = 0; j < 4; j++) {
 603                                 par_array[j] = (oddparity(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));
 604                         }
 605
 606                         ncount = 0;
 607                         nttest = prng_successor(nt1, dmin - 1);
 608                         for (j = dmin; j < dmax + 1; j++) {
 609                                 nttest = prng_successor(nttest, 1);
 610                                 ks1 = nt2 ^ nttest;
 611
 612                                 if (valid_nonce(nttest, nt2, ks1, par_array)){
 613                                         if (ncount > 0) {               // we are only interested in disambiguous nonces, try again
 614                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (ambigous), ntdist=%d", i+1, j);
 615                                                 target_nt[i] = 0;
 616                                                 break;
 617                                         }
 618                                         target_nt[i] = nttest;
 619                                         target_ks[i] = ks1;
 620                                         ncount++;
 621                                         if (i == 1 && target_nt[1] == target_nt[0]) { // we need two different nonces
 622                                                 target_nt[i] = 0;
 623                                                 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#2: dismissed (= nonce#1), ntdist=%d", j);
 624                                                 break;
 625                                         }
 626                                         if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: valid, ntdist=%d", i+1, j);
 627                                 }
 628                         }
 629                         if (target_nt[i] == 0 && j == dmax+1 && MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (all invalid)", i+1);
 630                 }
 631         }
 632
 633         LED_C_OFF();
 634
 635         //  ----------------------------- crypto1 destroy
 636         crypto1_destroy(pcs);
 637
 638         byte_t buf[4 + 4 * 4];
 639         memcpy(buf, &cuid, 4);
 640         memcpy(buf+4, &target_nt[0], 4);
 641         memcpy(buf+8, &target_ks[0], 4);
 642         memcpy(buf+12, &target_nt[1], 4);
 643         memcpy(buf+16, &target_ks[1], 4);
 644
 645         LED_B_ON();
 646         cmd_send(CMD_ACK, 0, 2, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));
 647         LED_B_OFF();
 648
 649         if (MF_DBGLEVEL >= 3)   DbpString("NESTED FINISHED");
 650
 651         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 652         LEDsoff();
 653         iso14a_set_tracing(TRUE);
 654 }
 655
 656 //-----------------------------------------------------------------------------
 657 // MIFARE check keys. key count up to 85.
 658 //
 659 //-----------------------------------------------------------------------------
 660 void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 661 {
 662   // params
 663         uint8_t blockNo = arg0;
 664         uint8_t keyType = arg1;
 665         uint8_t keyCount = arg2;
 666         uint64_t ui64Key = 0;
 667
 668         // variables
 669         int i;
 670         byte_t isOK = 0;
 671         uint8_t uid[10];
 672         uint32_t cuid;
 673         struct Crypto1State mpcs = {0, 0};
 674         struct Crypto1State *pcs;
 675         pcs = &mpcs;
 676
 677         // clear debug level
 678         int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
 679         MF_DBGLEVEL = MF_DBG_NONE;
 680
 681         // clear trace
 682         iso14a_clear_trace();
 683         iso14a_set_tracing(TRUE);
 684
 685         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 686
 687         LED_A_ON();
 688         LED_B_OFF();
 689         LED_C_OFF();
 690
 691         for (i = 0; i < keyCount; i++) {
 692                 if(mifare_classic_halt(pcs, cuid)) {
 693                         if (MF_DBGLEVEL >= 1)   Dbprintf("ChkKeys: Halt error");
 694                 }
 695
 696                 if(!iso14443a_select_card(uid, NULL, &cuid)) {
 697                         if (OLD_MF_DBGLEVEL >= 1)       Dbprintf("ChkKeys: Can't select card");
 698                         break;
 699                 };
 700
 701                 ui64Key = bytes_to_num(datain + i * 6, 6);
 702                 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
 703                         continue;
 704                 };
 705
 706                 isOK = 1;
 707                 break;
 708         }
 709
 710         //  ----------------------------- crypto1 destroy
 711         crypto1_destroy(pcs);
 712
 713         LED_B_ON();
 714     cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);
 715         LED_B_OFF();
 716
 717         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 718         LEDsoff();
 719
 720         // restore debug level
 721         MF_DBGLEVEL = OLD_MF_DBGLEVEL;
 722 }
 723
 724 //-----------------------------------------------------------------------------
 725 // MIFARE commands set debug level
 726 //
 727 //-----------------------------------------------------------------------------
 728 void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 729         MF_DBGLEVEL = arg0;
 730         Dbprintf("Debug level: %d", MF_DBGLEVEL);
 731 }
 732
 733 //-----------------------------------------------------------------------------
 734 // Work with emulator memory
 735 //
 736 //-----------------------------------------------------------------------------
 737 void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 738         emlClearMem();
 739 }
 740
 741 void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 742         emlSetMem(datain, arg0, arg1); // data, block num, blocks count
 743 }
 744
 745 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 746         byte_t buf[USB_CMD_DATA_SIZE];
 747         emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)
 748
 749         LED_B_ON();
 750         cmd_send(CMD_ACK,arg0,arg1,0,buf,USB_CMD_DATA_SIZE);
 751         LED_B_OFF();
 752 }
 753
 754 //-----------------------------------------------------------------------------
 755 // Load a card into the emulator memory
 756 //
 757 //-----------------------------------------------------------------------------
 758 void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 759         uint8_t numSectors = arg0;
 760         uint8_t keyType = arg1;
 761         uint64_t ui64Key = 0;
 762         uint32_t cuid;
 763         struct Crypto1State mpcs = {0, 0};
 764         struct Crypto1State *pcs;
 765         pcs = &mpcs;
 766
 767         // variables
 768         byte_t dataoutbuf[16];
 769         byte_t dataoutbuf2[16];
 770         uint8_t uid[10];
 771
 772         // clear trace
 773         iso14a_clear_trace();
 774         iso14a_set_tracing(false);
 775
 776         iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 777
 778         LED_A_ON();
 779         LED_B_OFF();
 780         LED_C_OFF();
 781
 782         bool isOK = true;
 783
 784         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 785                 isOK = false;
 786                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 787         }
 788
 789         for (uint8_t sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {
 790                 ui64Key = emlGetKey(sectorNo, keyType);
 791                 if (sectorNo == 0){
 792                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 793                                 isOK = false;
 794                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth error", sectorNo);
 795                                 break;
 796                         }
 797                 } else {
 798                         if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_NESTED)) {
 799                                 isOK = false;
 800                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Sector[%2d]. Auth nested error", sectorNo);
 801                                 break;
 802                         }
 803                 }
 804
 805                 for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
 806                         if(isOK && mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {
 807                                 isOK = false;
 808                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Error reading sector %2d block %2d", sectorNo, blockNo);
 809                                 break;
 810                         };
 811                         if (isOK) {
 812                                 if (blockNo < NumBlocksPerSector(sectorNo) - 1) {
 813                                         emlSetMem(dataoutbuf, FirstBlockOfSector(sectorNo) + blockNo, 1);
 814                                 } else {        // sector trailer, keep the keys, set only the AC
 815                                         emlGetMem(dataoutbuf2, FirstBlockOfSector(sectorNo) + blockNo, 1);
 816                                         memcpy(&dataoutbuf2[6], &dataoutbuf[6], 4);
 817                                         emlSetMem(dataoutbuf2,  FirstBlockOfSector(sectorNo) + blockNo, 1);
 818                                 }
 819                         }
 820                 }
 821
 822         }
 823
 824         if(mifare_classic_halt(pcs, cuid)) {
 825                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 826         };
 827
 828         //  ----------------------------- crypto1 destroy
 829         crypto1_destroy(pcs);
 830
 831         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 832         LEDsoff();
 833
 834         if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");
 835
 836 }
 837
 838
 839 //-----------------------------------------------------------------------------
 840 // Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)
 841 //
 842 //-----------------------------------------------------------------------------
 843 void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 844
 845   // params
 846         uint8_t needWipe = arg0;
 847         // bit 0 - need get UID
 848         // bit 1 - need wupC
 849         // bit 2 - need HALT after sequence
 850         // bit 3 - need init FPGA and field before sequence
 851         // bit 4 - need reset FPGA and LED
 852         uint8_t workFlags = arg1;
 853         uint8_t blockNo = arg2;
 854
 855         // card commands
 856         uint8_t wupC1[]       = { 0x40 };
 857         uint8_t wupC2[]       = { 0x43 };
 858         uint8_t wipeC[]       = { 0x41 };
 859
 860         // variables
 861         byte_t isOK = 0;
 862         uint8_t uid[10] = {0x00};
 863         uint8_t d_block[18] = {0x00};
 864         uint32_t cuid;
 865
 866         uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();
 867         uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
 868
 869         // reset FPGA and LED
 870         if (workFlags & 0x08) {
 871                 LED_A_ON();
 872                 LED_B_OFF();
 873                 LED_C_OFF();
 874
 875                 iso14a_clear_trace();
 876                 iso14a_set_tracing(TRUE);
 877                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 878         }
 879
 880         while (true) {
 881
 882                 // get UID from chip
 883                 if (workFlags & 0x01) {
 884                         if(!iso14443a_select_card(uid, NULL, &cuid)) {
 885                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
 886                                 break;
 887                         };
 888
 889                         if(mifare_classic_halt(NULL, cuid)) {
 890                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 891                                 break;
 892                         };
 893                 };
 894
 895                 // reset chip
 896                 if (needWipe){
 897                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
 898                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 899                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
 900                                 break;
 901                         };
 902
 903                         ReaderTransmit(wipeC, sizeof(wipeC), NULL);
 904                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 905                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wipeC error");
 906                                 break;
 907                         };
 908
 909                         if(mifare_classic_halt(NULL, cuid)) {
 910                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 911                                 break;
 912                         };
 913                 };
 914
 915                 // write block
 916                 if (workFlags & 0x02) {
 917                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
 918                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 919                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
 920                                 break;
 921                         };
 922
 923                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
 924                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 925                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
 926                                 break;
 927                         };
 928                 }
 929
 930                 if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {
 931                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send command error");
 932                         break;
 933                 };
 934
 935                 memcpy(d_block, datain, 16);
 936                 AppendCrc14443a(d_block, 16);
 937
 938                 ReaderTransmit(d_block, sizeof(d_block), NULL);
 939                 if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) || (receivedAnswer[0] != 0x0a)) {
 940                         if (MF_DBGLEVEL >= 1)   Dbprintf("write block send data error");
 941                         break;
 942                 };
 943
 944                 if (workFlags & 0x04) {
 945                         if (mifare_classic_halt(NULL, cuid)) {
 946                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
 947                                 break;
 948                         };
 949                 }
 950
 951                 isOK = 1;
 952                 break;
 953         }
 954
 955         LED_B_ON();
 956         cmd_send(CMD_ACK,isOK,0,0,uid,4);
 957         LED_B_OFF();
 958
 959         if ((workFlags & 0x10) || (!isOK)) {
 960                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 961                 LEDsoff();
 962         }
 963 }
 964
 965
 966 void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
 967
 968   // params
 969         // bit 1 - need wupC
 970         // bit 2 - need HALT after sequence
 971         // bit 3 - need init FPGA and field before sequence
 972         // bit 4 - need reset FPGA and LED
 973         uint8_t workFlags = arg0;
 974         uint8_t blockNo = arg2;
 975
 976         // card commands
 977         uint8_t wupC1[]       = { 0x40 };
 978         uint8_t wupC2[]       = { 0x43 };
 979
 980         // variables
 981         byte_t isOK = 0;
 982         uint8_t data[18] = {0x00};
 983         uint32_t cuid = 0;
 984
 985         uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();
 986         uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
 987
 988         if (workFlags & 0x08) {
 989                 LED_A_ON();
 990                 LED_B_OFF();
 991                 LED_C_OFF();
 992
 993                 iso14a_clear_trace();
 994                 iso14a_set_tracing(TRUE);
 995                 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 996         }
 997
 998         while (true) {
 999                 if (workFlags & 0x02) {
1000                         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1001                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1002                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");
1003                                 break;
1004                         };
1005
1006                         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1007                         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1008                                 if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");
1009                                 break;
1010                         };
1011                 }
1012
1013                 // read block
1014                 if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {
1015                         if (MF_DBGLEVEL >= 1)   Dbprintf("read block send command error");
1016                         break;
1017                 };
1018                 memcpy(data, receivedAnswer, 18);
1019
1020                 if (workFlags & 0x04) {
1021                         if (mifare_classic_halt(NULL, cuid)) {
1022                                 if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
1023                                 break;
1024                         };
1025                 }
1026
1027                 isOK = 1;
1028                 break;
1029         }
1030
1031         LED_B_ON();
1032         cmd_send(CMD_ACK,isOK,0,0,data,18);
1033         LED_B_OFF();
1034
1035         if ((workFlags & 0x10) || (!isOK)) {
1036                 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1037                 LEDsoff();
1038         }
1039 }
1040
1041 void MifareCIdent(){
1042
1043         // card commands
1044         uint8_t wupC1[]       = { 0x40 };
1045         uint8_t wupC2[]       = { 0x43 };
1046
1047         // variables
1048         byte_t isOK = 1;
1049
1050         uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();
1051         uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
1052
1053         ReaderTransmitBitsPar(wupC1,7,0, NULL);
1054         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1055                 isOK = 0;
1056         };
1057
1058         ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1059         if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1060                 isOK = 0;
1061         };
1062
1063         if (mifare_classic_halt(NULL, 0)) {
1064                 isOK = 0;
1065         };
1066
1067         cmd_send(CMD_ACK,isOK,0,0,0,0);
1068 }
1069
1070                         //
1071 // DESFIRE
1072 //