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[proxmark3-svn] / 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
90 void MifareUC_Auth(uint8_t arg0, uint8_t *keybytes){
91
92 bool turnOffField = (arg0 == 1);
93
94 LED_A_ON(); LED_B_OFF(); LED_C_OFF();
95 clear_trace();
96 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
97
98 if(!iso14443a_select_card(NULL, NULL, NULL)) {
99 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");
100 OnError(0);
101 return;
102 };
103
104 if(!mifare_ultra_auth(keybytes)){
105 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed");
106 OnError(1);
107 return;
108 }
109
110 if (turnOffField) {
111 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
112 LEDsoff();
113 }
114 cmd_send(CMD_ACK,1,0,0,0,0);
115 }
116
117 // Arg0 = BlockNo,
118 // Arg1 = UsePwd bool
119 // datain = PWD bytes,
120 void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
121 {
122 uint8_t blockNo = arg0;
123 byte_t dataout[16] = {0x00};
124 bool useKey = (arg1 == 1); //UL_C
125 bool usePwd = (arg1 == 2); //UL_EV1/NTAG
126
127 LEDsoff();
128 LED_A_ON();
129 clear_trace();
130 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
131
132 int len = iso14443a_select_card(NULL, NULL, NULL);
133 if(!len) {
134 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len);
135 OnError(1);
136 return;
137 }
138
139 // UL-C authentication
140 if ( useKey ) {
141 uint8_t key[16] = {0x00};
142 memcpy(key, datain, sizeof(key) );
143
144 if ( !mifare_ultra_auth(key) ) {
145 OnError(1);
146 return;
147 }
148 }
149
150 // UL-EV1 / NTAG authentication
151 if (usePwd) {
152 uint8_t pwd[4] = {0x00};
153 memcpy(pwd, datain, 4);
154 uint8_t pack[4] = {0,0,0,0};
155 if (!mifare_ul_ev1_auth(pwd, pack)) {
156 OnError(1);
157 return;
158 }
159 }
160
161 if( mifare_ultra_readblock(blockNo, dataout) ) {
162 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");
163 OnError(2);
164 return;
165 }
166
167 if( mifare_ultra_halt() ) {
168 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
169 OnError(3);
170 return;
171 }
172
173 cmd_send(CMD_ACK,1,0,0,dataout,16);
174 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
175 LEDsoff();
176 }
177
178 //-----------------------------------------------------------------------------
179 // Select, Authenticate, Read a MIFARE tag.
180 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)
181 //-----------------------------------------------------------------------------
182 void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
183 {
184 // params
185 uint8_t sectorNo = arg0;
186 uint8_t keyType = arg1;
187 uint64_t ui64Key = 0;
188 ui64Key = bytes_to_num(datain, 6);
189
190 // variables
191 byte_t isOK = 0;
192 byte_t dataoutbuf[16 * 16];
193 uint8_t uid[10];
194 uint32_t cuid;
195 struct Crypto1State mpcs = {0, 0};
196 struct Crypto1State *pcs;
197 pcs = &mpcs;
198
199 // clear trace
200 clear_trace();
201
202 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
203
204 LED_A_ON();
205 LED_B_OFF();
206 LED_C_OFF();
207
208 isOK = 1;
209 if(!iso14443a_select_card(uid, NULL, &cuid)) {
210 isOK = 0;
211 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
212 }
213
214
215 if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
216 isOK = 0;
217 if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
218 }
219
220 for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
221 if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {
222 isOK = 0;
223 if (MF_DBGLEVEL >= 1) Dbprintf("Read sector %2d block %2d error", sectorNo, blockNo);
224 break;
225 }
226 }
227
228 if(mifare_classic_halt(pcs, cuid)) {
229 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
230 }
231
232 // ----------------------------- crypto1 destroy
233 crypto1_destroy(pcs);
234
235 if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
236
237 LED_B_ON();
238 cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16*NumBlocksPerSector(sectorNo));
239 LED_B_OFF();
240
241 // Thats it...
242 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
243 LEDsoff();
244 }
245
246 // arg0 = blockNo (start)
247 // arg1 = Pages (number of blocks)
248 // arg2 = useKey
249 // datain = KEY bytes
250 void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)
251 {
252 // free eventually allocated BigBuf memory
253 BigBuf_free();
254 // clear trace
255 clear_trace();
256
257 // params
258 uint8_t blockNo = arg0;
259 uint16_t blocks = arg1;
260 bool useKey = (arg2 == 1); //UL_C
261 bool usePwd = (arg2 == 2); //UL_EV1/NTAG
262 uint32_t countblocks = 0;
263 uint8_t *dataout = BigBuf_malloc(CARD_MEMORY_SIZE);
264 if (dataout == NULL){
265 Dbprintf("out of memory");
266 OnError(1);
267 return;
268 }
269
270 LEDsoff();
271 LED_A_ON();
272 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
273
274 int len = iso14443a_select_card(NULL, NULL, NULL);
275 if (!len) {
276 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%d)",len);
277 OnError(1);
278 return;
279 }
280
281 // UL-C authentication
282 if ( useKey ) {
283 uint8_t key[16] = {0x00};
284 memcpy(key, datain, sizeof(key) );
285
286 if ( !mifare_ultra_auth(key) ) {
287 OnError(1);
288 return;
289 }
290 }
291
292 // UL-EV1 / NTAG authentication
293 if (usePwd) {
294 uint8_t pwd[4] = {0x00};
295 memcpy(pwd, datain, sizeof(pwd));
296 uint8_t pack[4] = {0,0,0,0};
297
298 if (!mifare_ul_ev1_auth(pwd, pack)){
299 OnError(1);
300 return;
301 }
302 }
303
304 for (int i = 0; i < blocks; i++){
305 if ((i*4) + 4 > CARD_MEMORY_SIZE) {
306 Dbprintf("Data exceeds buffer!!");
307 break;
308 }
309
310 len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i);
311
312 if (len) {
313 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);
314 // if no blocks read - error out
315 if (i==0){
316 OnError(2);
317 return;
318 } else {
319 //stop at last successful read block and return what we got
320 break;
321 }
322 } else {
323 countblocks++;
324 }
325 }
326
327 len = mifare_ultra_halt();
328 if (len) {
329 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
330 OnError(3);
331 return;
332 }
333
334 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Blocks read %d", countblocks);
335
336 countblocks *= 4;
337 cmd_send(CMD_ACK, 1, countblocks, countblocks, 0, 0);
338 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
339 LEDsoff();
340 }
341
342 //-----------------------------------------------------------------------------
343 // Select, Authenticate, Write a MIFARE tag.
344 // read block
345 //-----------------------------------------------------------------------------
346 void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
347 {
348 // params
349 uint8_t blockNo = arg0;
350 uint8_t keyType = arg1;
351 uint64_t ui64Key = 0;
352 byte_t blockdata[16];
353
354 ui64Key = bytes_to_num(datain, 6);
355 memcpy(blockdata, datain + 10, 16);
356
357 // variables
358 byte_t isOK = 0;
359 uint8_t uid[10];
360 uint32_t cuid;
361 struct Crypto1State mpcs = {0, 0};
362 struct Crypto1State *pcs;
363 pcs = &mpcs;
364
365 // clear trace
366 clear_trace();
367
368 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
369
370 LED_A_ON();
371 LED_B_OFF();
372 LED_C_OFF();
373
374 while (true) {
375 if(!iso14443a_select_card(uid, NULL, &cuid)) {
376 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
377 break;
378 };
379
380 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
381 if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
382 break;
383 };
384
385 if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {
386 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
387 break;
388 };
389
390 if(mifare_classic_halt(pcs, cuid)) {
391 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
392 break;
393 };
394
395 isOK = 1;
396 break;
397 }
398
399 // ----------------------------- crypto1 destroy
400 crypto1_destroy(pcs);
401
402 if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
403
404 LED_B_ON();
405 cmd_send(CMD_ACK,isOK,0,0,0,0);
406 LED_B_OFF();
407
408
409 // Thats it...
410 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
411 LEDsoff();
412 }
413
414 void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
415 {
416 uint8_t blockNo = arg0;
417 byte_t blockdata[16] = {0x00};
418
419 memcpy(blockdata, datain, 16);
420
421 uint8_t uid[10] = {0x00};
422
423 LED_A_ON(); LED_B_OFF(); LED_C_OFF();
424
425 clear_trace();
426 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
427
428 if(!iso14443a_select_card(uid, NULL, NULL)) {
429 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
430 OnError(0);
431 return;
432 };
433
434 if(mifare_ultra_writeblock(blockNo, blockdata)) {
435 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
436 OnError(0);
437 return; };
438
439 if(mifare_ultra_halt()) {
440 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
441 OnError(0);
442 return;
443 };
444
445 if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
446
447 cmd_send(CMD_ACK,1,0,0,0,0);
448 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
449 LEDsoff();
450 }
451
452 // Arg0 : Block to write to.
453 // Arg1 : 0 = use no authentication.
454 // 1 = use 0x1A authentication.
455 // 2 = use 0x1B authentication.
456 // datain : 4 first bytes is data to be written.
457 // : 4/16 next bytes is authentication key.
458 void MifareUWriteBlock_Special(uint8_t arg0, uint8_t arg1, uint8_t *datain)
459 {
460 uint8_t blockNo = arg0;
461 bool useKey = (arg1 == 1); //UL_C
462 bool usePwd = (arg1 == 2); //UL_EV1/NTAG
463 byte_t blockdata[4] = {0x00};
464
465 memcpy(blockdata, datain, 4);
466
467 LEDsoff();
468 LED_A_ON();
469 clear_trace();
470 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
471
472 if(!iso14443a_select_card(NULL, NULL, NULL)) {
473 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
474 OnError(0);
475 return;
476 };
477
478 // UL-C authentication
479 if ( useKey ) {
480 uint8_t key[16] = {0x00};
481 memcpy(key, datain+4, sizeof(key) );
482
483 if ( !mifare_ultra_auth(key) ) {
484 OnError(1);
485 return;
486 }
487 }
488
489 // UL-EV1 / NTAG authentication
490 if (usePwd) {
491 uint8_t pwd[4] = {0x00};
492 memcpy(pwd, datain+4, 4);
493 uint8_t pack[4] = {0,0,0,0};
494 if (!mifare_ul_ev1_auth(pwd, pack)) {
495 OnError(1);
496 return;
497 }
498 }
499
500 if(mifare_ultra_special_writeblock(blockNo, blockdata)) {
501 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
502 OnError(0);
503 return;
504 };
505
506 if(mifare_ultra_halt()) {
507 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
508 OnError(0);
509 return;
510 };
511
512 if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
513
514 cmd_send(CMD_ACK,1,0,0,0,0);
515 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
516 LEDsoff();
517 }
518
519 void MifareUSetPwd(uint8_t arg0, uint8_t *datain){
520
521 uint8_t pwd[16] = {0x00};
522 byte_t blockdata[4] = {0x00};
523
524 memcpy(pwd, datain, 16);
525
526 LED_A_ON(); LED_B_OFF(); LED_C_OFF();
527 clear_trace();
528 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
529
530 if(!iso14443a_select_card(NULL, NULL, NULL)) {
531 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
532 OnError(0);
533 return;
534 };
535
536 blockdata[0] = pwd[7];
537 blockdata[1] = pwd[6];
538 blockdata[2] = pwd[5];
539 blockdata[3] = pwd[4];
540 if(mifare_ultra_special_writeblock( 44, blockdata)) {
541 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
542 OnError(44);
543 return;
544 };
545
546 blockdata[0] = pwd[3];
547 blockdata[1] = pwd[2];
548 blockdata[2] = pwd[1];
549 blockdata[3] = pwd[0];
550 if(mifare_ultra_special_writeblock( 45, blockdata)) {
551 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
552 OnError(45);
553 return;
554 };
555
556 blockdata[0] = pwd[15];
557 blockdata[1] = pwd[14];
558 blockdata[2] = pwd[13];
559 blockdata[3] = pwd[12];
560 if(mifare_ultra_special_writeblock( 46, blockdata)) {
561 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
562 OnError(46);
563 return;
564 };
565
566 blockdata[0] = pwd[11];
567 blockdata[1] = pwd[10];
568 blockdata[2] = pwd[9];
569 blockdata[3] = pwd[8];
570 if(mifare_ultra_special_writeblock( 47, blockdata)) {
571 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
572 OnError(47);
573 return;
574 };
575
576 if(mifare_ultra_halt()) {
577 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
578 OnError(0);
579 return;
580 };
581
582 cmd_send(CMD_ACK,1,0,0,0,0);
583 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
584 LEDsoff();
585 }
586
587 // Return 1 if the nonce is invalid else return 0
588 int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_t *parity) {
589 return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \
590 (oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \
591 (oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;
592 }
593
594
595 //-----------------------------------------------------------------------------
596 // MIFARE nested authentication.
597 //
598 //-----------------------------------------------------------------------------
599 void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *datain)
600 {
601 // params
602 uint8_t blockNo = arg0 & 0xff;
603 uint8_t keyType = (arg0 >> 8) & 0xff;
604 uint8_t targetBlockNo = arg1 & 0xff;
605 uint8_t targetKeyType = (arg1 >> 8) & 0xff;
606 uint64_t ui64Key = 0;
607
608 ui64Key = bytes_to_num(datain, 6);
609
610 // variables
611 uint16_t rtr, i, j, len;
612 uint16_t davg;
613 static uint16_t dmin, dmax;
614 uint8_t uid[10];
615 uint32_t cuid, nt1, nt2, nttmp, nttest, ks1;
616 uint8_t par[1];
617 uint32_t target_nt[2], target_ks[2];
618
619 uint8_t par_array[4];
620 uint16_t ncount = 0;
621 struct Crypto1State mpcs = {0, 0};
622 struct Crypto1State *pcs;
623 pcs = &mpcs;
624 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
625
626 uint32_t auth1_time, auth2_time;
627 static uint16_t delta_time;
628
629 // free eventually allocated BigBuf memory
630 BigBuf_free();
631 // clear trace
632 clear_trace();
633 set_tracing(false);
634
635 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
636
637 LED_A_ON();
638 LED_C_OFF();
639
640
641 // statistics on nonce distance
642 if (calibrate) { // for first call only. Otherwise reuse previous calibration
643 LED_B_ON();
644 WDT_HIT();
645
646 davg = dmax = 0;
647 dmin = 2000;
648 delta_time = 0;
649
650 for (rtr = 0; rtr < 17; rtr++) {
651
652 // prepare next select. No need to power down the card.
653 if(mifare_classic_halt(pcs, cuid)) {
654 if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Halt error");
655 rtr--;
656 continue;
657 }
658
659 if(!iso14443a_select_card(uid, NULL, &cuid)) {
660 if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Can't select card");
661 rtr--;
662 continue;
663 };
664
665 auth1_time = 0;
666 if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
667 if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth1 error");
668 rtr--;
669 continue;
670 };
671
672 if (delta_time) {
673 auth2_time = auth1_time + delta_time;
674 } else {
675 auth2_time = 0;
676 }
677 if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_NESTED, &nt2, &auth2_time)) {
678 if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth2 error");
679 rtr--;
680 continue;
681 };
682
683 nttmp = prng_successor(nt1, 100); //NXP Mifare is typical around 840,but for some unlicensed/compatible mifare card this can be 160
684 for (i = 101; i < 1200; i++) {
685 nttmp = prng_successor(nttmp, 1);
686 if (nttmp == nt2) break;
687 }
688
689 if (i != 1200) {
690 if (rtr != 0) {
691 davg += i;
692 dmin = MIN(dmin, i);
693 dmax = MAX(dmax, i);
694 }
695 else {
696 delta_time = auth2_time - auth1_time + 32; // allow some slack for proper timing
697 }
698 if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i);
699 }
700 }
701
702 if (rtr <= 1) return;
703
704 davg = (davg + (rtr - 1)/2) / (rtr - 1);
705
706 if (MF_DBGLEVEL >= 3) Dbprintf("min=%d max=%d avg=%d, delta_time=%d", dmin, dmax, davg, delta_time);
707
708 dmin = davg - 2;
709 dmax = davg + 2;
710
711 LED_B_OFF();
712
713 }
714 // -------------------------------------------------------------------------------------------------
715
716 LED_C_ON();
717
718 // get crypted nonces for target sector
719 for(i=0; i < 2; i++) { // look for exactly two different nonces
720
721 target_nt[i] = 0;
722 while(target_nt[i] == 0) { // continue until we have an unambiguous nonce
723
724 // prepare next select. No need to power down the card.
725 if(mifare_classic_halt(pcs, cuid)) {
726 if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Halt error");
727 continue;
728 }
729
730 if(!iso14443a_select_card(uid, NULL, &cuid)) {
731 if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Can't select card");
732 continue;
733 };
734
735 auth1_time = 0;
736 if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
737 if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth1 error");
738 continue;
739 };
740
741 // nested authentication
742 auth2_time = auth1_time + delta_time;
743 len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);
744 if (len != 4) {
745 if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth2 error len=%d", len);
746 continue;
747 };
748
749 nt2 = bytes_to_num(receivedAnswer, 4);
750 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);
751
752 // Parity validity check
753 for (j = 0; j < 4; j++) {
754 par_array[j] = (oddparity(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));
755 }
756
757 ncount = 0;
758 nttest = prng_successor(nt1, dmin - 1);
759 for (j = dmin; j < dmax + 1; j++) {
760 nttest = prng_successor(nttest, 1);
761 ks1 = nt2 ^ nttest;
762
763 if (valid_nonce(nttest, nt2, ks1, par_array)){
764 if (ncount > 0) { // we are only interested in disambiguous nonces, try again
765 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (ambigous), ntdist=%d", i+1, j);
766 target_nt[i] = 0;
767 break;
768 }
769 target_nt[i] = nttest;
770 target_ks[i] = ks1;
771 ncount++;
772 if (i == 1 && target_nt[1] == target_nt[0]) { // we need two different nonces
773 target_nt[i] = 0;
774 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#2: dismissed (= nonce#1), ntdist=%d", j);
775 break;
776 }
777 if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: valid, ntdist=%d", i+1, j);
778 }
779 }
780 if (target_nt[i] == 0 && j == dmax+1 && MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (all invalid)", i+1);
781 }
782 }
783
784 LED_C_OFF();
785
786 // ----------------------------- crypto1 destroy
787 crypto1_destroy(pcs);
788
789 byte_t buf[4 + 4 * 4];
790 memcpy(buf, &cuid, 4);
791 memcpy(buf+4, &target_nt[0], 4);
792 memcpy(buf+8, &target_ks[0], 4);
793 memcpy(buf+12, &target_nt[1], 4);
794 memcpy(buf+16, &target_ks[1], 4);
795
796 LED_B_ON();
797 cmd_send(CMD_ACK, 0, 2, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));
798 LED_B_OFF();
799
800 if (MF_DBGLEVEL >= 3) DbpString("NESTED FINISHED");
801
802 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
803 LEDsoff();
804 set_tracing(TRUE);
805 }
806
807 //-----------------------------------------------------------------------------
808 // MIFARE check keys. key count up to 85.
809 //
810 //-----------------------------------------------------------------------------
811 void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
812 {
813 // params
814 uint8_t blockNo = arg0;
815 uint8_t keyType = arg1;
816 uint8_t keyCount = arg2;
817 uint64_t ui64Key = 0;
818
819 // variables
820 int i;
821 byte_t isOK = 0;
822 uint8_t uid[10];
823 uint32_t cuid;
824 struct Crypto1State mpcs = {0, 0};
825 struct Crypto1State *pcs;
826 pcs = &mpcs;
827
828 // clear debug level
829 int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
830 MF_DBGLEVEL = MF_DBG_NONE;
831
832 // clear trace
833 clear_trace();
834 set_tracing(TRUE);
835
836 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
837
838 LED_A_ON();
839 LED_B_OFF();
840 LED_C_OFF();
841
842 for (i = 0; i < keyCount; i++) {
843 if(mifare_classic_halt(pcs, cuid)) {
844 if (MF_DBGLEVEL >= 1) Dbprintf("ChkKeys: Halt error");
845 }
846
847 if(!iso14443a_select_card(uid, NULL, &cuid)) {
848 if (OLD_MF_DBGLEVEL >= 1) Dbprintf("ChkKeys: Can't select card");
849 break;
850 };
851
852 ui64Key = bytes_to_num(datain + i * 6, 6);
853 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
854 continue;
855 };
856
857 isOK = 1;
858 break;
859 }
860
861 // ----------------------------- crypto1 destroy
862 crypto1_destroy(pcs);
863
864 LED_B_ON();
865 cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);
866 LED_B_OFF();
867
868 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
869 LEDsoff();
870
871 // restore debug level
872 MF_DBGLEVEL = OLD_MF_DBGLEVEL;
873 }
874
875 //-----------------------------------------------------------------------------
876 // MIFARE commands set debug level
877 //
878 //-----------------------------------------------------------------------------
879 void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
880 MF_DBGLEVEL = arg0;
881 Dbprintf("Debug level: %d", MF_DBGLEVEL);
882 }
883
884 //-----------------------------------------------------------------------------
885 // Work with emulator memory
886 //
887 //-----------------------------------------------------------------------------
888 void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
889 emlClearMem();
890 }
891
892 void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
893 emlSetMem(datain, arg0, arg1); // data, block num, blocks count
894 }
895
896 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
897 byte_t buf[USB_CMD_DATA_SIZE];
898 emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)
899
900 LED_B_ON();
901 cmd_send(CMD_ACK,arg0,arg1,0,buf,USB_CMD_DATA_SIZE);
902 LED_B_OFF();
903 }
904
905 //-----------------------------------------------------------------------------
906 // Load a card into the emulator memory
907 //
908 //-----------------------------------------------------------------------------
909 void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
910 uint8_t numSectors = arg0;
911 uint8_t keyType = arg1;
912 uint64_t ui64Key = 0;
913 uint32_t cuid;
914 struct Crypto1State mpcs = {0, 0};
915 struct Crypto1State *pcs;
916 pcs = &mpcs;
917
918 // variables
919 byte_t dataoutbuf[16];
920 byte_t dataoutbuf2[16];
921 uint8_t uid[10];
922
923 // clear trace
924 clear_trace();
925 set_tracing(false);
926
927 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
928
929 LED_A_ON();
930 LED_B_OFF();
931 LED_C_OFF();
932
933 bool isOK = true;
934
935 if(!iso14443a_select_card(uid, NULL, &cuid)) {
936 isOK = false;
937 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
938 }
939
940 for (uint8_t sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {
941 ui64Key = emlGetKey(sectorNo, keyType);
942 if (sectorNo == 0){
943 if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
944 isOK = false;
945 if (MF_DBGLEVEL >= 1) Dbprintf("Sector[%2d]. Auth error", sectorNo);
946 break;
947 }
948 } else {
949 if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_NESTED)) {
950 isOK = false;
951 if (MF_DBGLEVEL >= 1) Dbprintf("Sector[%2d]. Auth nested error", sectorNo);
952 break;
953 }
954 }
955
956 for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
957 if(isOK && mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {
958 isOK = false;
959 if (MF_DBGLEVEL >= 1) Dbprintf("Error reading sector %2d block %2d", sectorNo, blockNo);
960 break;
961 };
962 if (isOK) {
963 if (blockNo < NumBlocksPerSector(sectorNo) - 1) {
964 emlSetMem(dataoutbuf, FirstBlockOfSector(sectorNo) + blockNo, 1);
965 } else { // sector trailer, keep the keys, set only the AC
966 emlGetMem(dataoutbuf2, FirstBlockOfSector(sectorNo) + blockNo, 1);
967 memcpy(&dataoutbuf2[6], &dataoutbuf[6], 4);
968 emlSetMem(dataoutbuf2, FirstBlockOfSector(sectorNo) + blockNo, 1);
969 }
970 }
971 }
972
973 }
974
975 if(mifare_classic_halt(pcs, cuid)) {
976 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
977 };
978
979 // ----------------------------- crypto1 destroy
980 crypto1_destroy(pcs);
981
982 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
983 LEDsoff();
984
985 if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");
986
987 }
988
989
990 //-----------------------------------------------------------------------------
991 // Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)
992 //
993 //-----------------------------------------------------------------------------
994 void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
995
996 // params
997 uint8_t needWipe = arg0;
998 // bit 0 - need get UID
999 // bit 1 - need wupC
1000 // bit 2 - need HALT after sequence
1001 // bit 3 - need init FPGA and field before sequence
1002 // bit 4 - need reset FPGA and LED
1003 uint8_t workFlags = arg1;
1004 uint8_t blockNo = arg2;
1005
1006 // card commands
1007 uint8_t wupC1[] = { 0x40 };
1008 uint8_t wupC2[] = { 0x43 };
1009 uint8_t wipeC[] = { 0x41 };
1010
1011 // variables
1012 byte_t isOK = 0;
1013 uint8_t uid[10] = {0x00};
1014 uint8_t d_block[18] = {0x00};
1015 uint32_t cuid;
1016
1017 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1018 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1019
1020 // reset FPGA and LED
1021 if (workFlags & 0x08) {
1022 LED_A_ON();
1023 LED_B_OFF();
1024 LED_C_OFF();
1025
1026 clear_trace();
1027 set_tracing(TRUE);
1028 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1029 }
1030
1031 while (true) {
1032
1033 // get UID from chip
1034 if (workFlags & 0x01) {
1035 if(!iso14443a_select_card(uid, NULL, &cuid)) {
1036 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
1037 //break;
1038 };
1039
1040 if(mifare_classic_halt(NULL, cuid)) {
1041 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
1042 //break;
1043 };
1044 };
1045
1046 // reset chip
1047 if (needWipe){
1048 ReaderTransmitBitsPar(wupC1,7,0, NULL);
1049 if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1050 if (MF_DBGLEVEL >= 1) Dbprintf("wupC1 error");
1051 break;
1052 };
1053
1054 ReaderTransmit(wipeC, sizeof(wipeC), NULL);
1055 if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1056 if (MF_DBGLEVEL >= 1) Dbprintf("wipeC error");
1057 break;
1058 };
1059
1060 if(mifare_classic_halt(NULL, cuid)) {
1061 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
1062 break;
1063 };
1064 };
1065
1066 // write block
1067 if (workFlags & 0x02) {
1068 ReaderTransmitBitsPar(wupC1,7,0, NULL);
1069 if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1070 if (MF_DBGLEVEL >= 1) Dbprintf("wupC1 error");
1071 break;
1072 };
1073
1074 ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1075 if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1076 if (MF_DBGLEVEL >= 1) Dbprintf("wupC2 error");
1077 break;
1078 };
1079 }
1080
1081 if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {
1082 if (MF_DBGLEVEL >= 1) Dbprintf("write block send command error");
1083 break;
1084 };
1085
1086 memcpy(d_block, datain, 16);
1087 AppendCrc14443a(d_block, 16);
1088
1089 ReaderTransmit(d_block, sizeof(d_block), NULL);
1090 if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) || (receivedAnswer[0] != 0x0a)) {
1091 if (MF_DBGLEVEL >= 1) Dbprintf("write block send data error");
1092 break;
1093 };
1094
1095 if (workFlags & 0x04) {
1096 if (mifare_classic_halt(NULL, cuid)) {
1097 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
1098 break;
1099 };
1100 }
1101
1102 isOK = 1;
1103 break;
1104 }
1105
1106 LED_B_ON();
1107 cmd_send(CMD_ACK,isOK,0,0,uid,4);
1108 LED_B_OFF();
1109
1110 if ((workFlags & 0x10) || (!isOK)) {
1111 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1112 LEDsoff();
1113 }
1114 }
1115
1116
1117 void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
1118
1119 // params
1120 // bit 1 - need wupC
1121 // bit 2 - need HALT after sequence
1122 // bit 3 - need init FPGA and field before sequence
1123 // bit 4 - need reset FPGA and LED
1124 uint8_t workFlags = arg0;
1125 uint8_t blockNo = arg2;
1126
1127 // card commands
1128 uint8_t wupC1[] = { 0x40 };
1129 uint8_t wupC2[] = { 0x43 };
1130
1131 // variables
1132 byte_t isOK = 0;
1133 uint8_t data[18] = {0x00};
1134 uint32_t cuid = 0;
1135
1136 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1137 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1138
1139 if (workFlags & 0x08) {
1140 LED_A_ON();
1141 LED_B_OFF();
1142 LED_C_OFF();
1143
1144 clear_trace();
1145 set_tracing(TRUE);
1146 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1147 }
1148
1149 while (true) {
1150 if (workFlags & 0x02) {
1151 ReaderTransmitBitsPar(wupC1,7,0, NULL);
1152 if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1153 if (MF_DBGLEVEL >= 1) Dbprintf("wupC1 error");
1154 break;
1155 };
1156
1157 ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1158 if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1159 if (MF_DBGLEVEL >= 1) Dbprintf("wupC2 error");
1160 break;
1161 };
1162 }
1163
1164 // read block
1165 if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {
1166 if (MF_DBGLEVEL >= 1) Dbprintf("read block send command error");
1167 break;
1168 };
1169 memcpy(data, receivedAnswer, 18);
1170
1171 if (workFlags & 0x04) {
1172 if (mifare_classic_halt(NULL, cuid)) {
1173 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
1174 break;
1175 };
1176 }
1177
1178 isOK = 1;
1179 break;
1180 }
1181
1182 LED_B_ON();
1183 cmd_send(CMD_ACK,isOK,0,0,data,18);
1184 LED_B_OFF();
1185
1186 if ((workFlags & 0x10) || (!isOK)) {
1187 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1188 LEDsoff();
1189 }
1190 }
1191
1192 void MifareCIdent(){
1193
1194 // card commands
1195 uint8_t wupC1[] = { 0x40 };
1196 uint8_t wupC2[] = { 0x43 };
1197
1198 // variables
1199 byte_t isOK = 1;
1200
1201 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
1202 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
1203
1204 ReaderTransmitBitsPar(wupC1,7,0, NULL);
1205 if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1206 isOK = 0;
1207 };
1208
1209 ReaderTransmit(wupC2, sizeof(wupC2), NULL);
1210 if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
1211 isOK = 0;
1212 };
1213
1214 if (mifare_classic_halt(NULL, 0)) {
1215 isOK = 0;
1216 };
1217
1218 cmd_send(CMD_ACK,isOK,0,0,0,0);
1219 }
1220
1221 void MifareCollectNonces(uint32_t arg0, uint32_t arg1){
1222
1223 BigBuf_free();
1224
1225 uint32_t iterations = arg0;
1226 uint8_t uid[10] = {0x00};
1227
1228 uint8_t *response = BigBuf_malloc(MAX_MIFARE_FRAME_SIZE);
1229 uint8_t *responsePar = BigBuf_malloc(MAX_MIFARE_PARITY_SIZE);
1230
1231 uint8_t mf_auth[] = { 0x60,0x00,0xf5,0x7b };
1232
1233 // get memory from BigBuf.
1234 uint8_t *nonces = BigBuf_malloc(iterations * 4);
1235
1236 LED_A_ON();
1237 LED_B_OFF();
1238 LED_C_OFF();
1239
1240 clear_trace();
1241 set_tracing(TRUE);
1242 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1243
1244 for (int i = 0; i < iterations; i++) {
1245
1246 WDT_HIT();
1247
1248 // Test if the action was cancelled
1249 if(BUTTON_PRESS()) break;
1250
1251 // if(mifare_classic_halt(pcs, cuid)) {
1252 // if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
1253 //}
1254
1255 if(!iso14443a_select_card(uid, NULL, NULL)) {
1256 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
1257 continue;
1258 };
1259
1260 // Transmit MIFARE_CLASSIC_AUTH.
1261 ReaderTransmit(mf_auth, sizeof(mf_auth), NULL);
1262
1263 // Receive the (4 Byte) "random" nonce
1264 if (!ReaderReceive(response, responsePar)) {
1265 if (MF_DBGLEVEL >= 1) Dbprintf("Couldn't receive tag nonce");
1266 continue;
1267 }
1268
1269 nonces[i*4] = bytes_to_num(response, 4);
1270 }
1271
1272 int packLen = iterations * 4;
1273 int packSize = 0;
1274 int packNum = 0;
1275 while (packLen > 0) {
1276 packSize = MIN(USB_CMD_DATA_SIZE, packLen);
1277 LED_B_ON();
1278 cmd_send(CMD_ACK, 77, 0, packSize, nonces - packLen, packSize);
1279 LED_B_OFF();
1280
1281 packLen -= packSize;
1282 packNum++;
1283 }
1284 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1285 LEDsoff();
1286 }
1287
1288 //
1289 // DESFIRE
1290 //
1291
1292 void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){
1293
1294 byte_t dataout[11] = {0x00};
1295 uint8_t uid[10] = {0x00};
1296 uint32_t cuid = 0x00;
1297
1298 clear_trace();
1299 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1300
1301 int len = iso14443a_select_card(uid, NULL, &cuid);
1302 if(!len) {
1303 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");
1304 OnError(1);
1305 return;
1306 };
1307
1308 if(mifare_desfire_des_auth1(cuid, dataout)){
1309 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part1: Fail.");
1310 OnError(4);
1311 return;
1312 }
1313
1314 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");
1315 cmd_send(CMD_ACK,1,cuid,0,dataout, sizeof(dataout));
1316 }
1317
1318 void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){
1319
1320 uint32_t cuid = arg0;
1321 uint8_t key[16] = {0x00};
1322 byte_t dataout[12] = {0x00};
1323 byte_t isOK = 0;
1324
1325 memcpy(key, datain, 16);
1326
1327 isOK = mifare_desfire_des_auth2(cuid, key, dataout);
1328
1329 if( isOK) {
1330 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed");
1331 OnError(4);
1332 return;
1333 }
1334
1335 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 2 FINISHED");
1336
1337 cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout));
1338 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1339 LEDsoff();
1340 }
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