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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 "des.h"
21 #include "crc.h"
22
23 // the block number for the ISO14443-4 PCB
24 uint8_t pcb_blocknum = 0;
25 // Deselect card by sending a s-block. the crc is precalced for speed
26 static uint8_t deselect_cmd[] = {0xc2,0xe0,0xb4};
27
28
29 //-----------------------------------------------------------------------------
30 // Select, Authenticate, Read a MIFARE tag.
31 // read block
32 //-----------------------------------------------------------------------------
33 void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
34 {
35 // params
36 uint8_t blockNo = arg0;
37 uint8_t keyType = arg1;
38 uint64_t ui64Key = 0;
39 ui64Key = bytes_to_num(datain, 6);
40
41 // variables
42 byte_t isOK = 0;
43 byte_t dataoutbuf[16];
44 uint8_t uid[10];
45 uint32_t cuid;
46 struct Crypto1State mpcs = {0, 0};
47 struct Crypto1State *pcs;
48 pcs = &mpcs;
49
50 // clear trace
51 clear_trace();
52 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
53
54 LED_A_ON();
55 LED_B_OFF();
56 LED_C_OFF();
57
58 while (true) {
59 if(!iso14443a_select_card(uid, NULL, &cuid)) {
60 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
61 break;
62 };
63
64 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
65 if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
66 break;
67 };
68
69 if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {
70 if (MF_DBGLEVEL >= 1) Dbprintf("Read block error");
71 break;
72 };
73
74 if(mifare_classic_halt(pcs, cuid)) {
75 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
76 break;
77 };
78
79 isOK = 1;
80 break;
81 }
82
83 // ----------------------------- crypto1 destroy
84 crypto1_destroy(pcs);
85
86 if (MF_DBGLEVEL >= 2) DbpString("READ BLOCK FINISHED");
87
88 LED_B_ON();
89 cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
90 LED_B_OFF();
91
92 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
93 LEDsoff();
94 }
95
96 void MifareUC_Auth1(uint8_t arg0, uint8_t *datain){
97
98 byte_t dataoutbuf[16] = {0x00};
99 uint8_t uid[10] = {0x00};
100 uint32_t cuid = 0x00;
101
102 LED_A_ON(); LED_B_OFF(); LED_C_OFF();
103
104 clear_trace();
105 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
106
107 if(!iso14443a_select_card(uid, NULL, &cuid)) {
108 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");
109 OnError(0);
110 return;
111 };
112
113 if(mifare_ultra_auth1(dataoutbuf)){
114 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part1: Fail.");
115 OnError(1);
116 return;
117 }
118
119 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");
120
121 cmd_send(CMD_ACK,1,cuid,0,dataoutbuf,11);
122 LEDsoff();
123 }
124 void MifareUC_Auth2(uint32_t arg0, uint8_t *datain){
125
126 uint8_t key[16] = {0x00};
127 byte_t dataoutbuf[16] = {0x00};
128
129 memcpy(key, datain, 16);
130
131 LED_A_ON(); LED_B_OFF(); LED_C_OFF();
132
133 if(mifare_ultra_auth2(key, dataoutbuf)){
134 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part2: Fail...");
135 OnError(1);
136 return;
137 }
138
139 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 2 FINISHED");
140
141 cmd_send(CMD_ACK,1,0,0,dataoutbuf,11);
142 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
143 LEDsoff();
144 }
145
146 void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
147 {
148 uint8_t blockNo = arg0;
149 byte_t dataout[16] = {0x00};
150 uint8_t uid[10] = {0x00};
151 uint8_t key[16] = {0x00};
152 bool usePwd = (arg1 == 1);
153
154 LED_A_ON(); LED_B_OFF(); LED_C_OFF();
155
156 clear_trace();
157 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
158
159 int len = iso14443a_select_card(uid, NULL, NULL);
160 if(!len) {
161 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len);
162 OnError(1);
163 return;
164 }
165
166 // authenticate here.
167 if ( usePwd ) {
168
169 memcpy(key, datain, 16);
170
171 // Dbprintf("KEY: %02x %02x %02x %02x %02x %02x %02x %02x", key[0],key[1],key[2],key[3],key[4],key[5],key[6],key[7] );
172 // Dbprintf("KEY: %02x %02x %02x %02x %02x %02x %02x %02x", key[8],key[9],key[10],key[11],key[12],key[13],key[14],key[15] );
173
174 uint8_t a[8] = {1,1,1,1,1,1,1,1 };
175 uint8_t b[8] = {0x00};
176 uint8_t enc_b[8] = {0x00};
177 uint8_t ab[16] = {0x00};
178 uint8_t enc_ab[16] = {0x00};
179 uint8_t enc_key[8] = {0x00};
180
181 uint16_t len;
182 uint8_t receivedAnswer[MAX_FRAME_SIZE];
183 uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
184
185 len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, receivedAnswer,receivedAnswerPar ,NULL);
186 if (len != 11) {
187 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
188 OnError(1);
189 return;
190 }
191
192 // tag nonce.
193 memcpy(enc_b,receivedAnswer+1,8);
194
195 // decrypt nonce.
196 tdes_2key_dec(b, enc_b, 8, key );
197
198 Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x", enc_b[0],enc_b[1],enc_b[2],enc_b[3],enc_b[4],enc_b[5],enc_b[6],enc_b[7] );
199 Dbprintf(" B: %02x %02x %02x %02x %02x %02x %02x %02x", b[0],b[1],b[2],b[3],b[4],b[5],b[6],b[7] );
200 rol(b,8);
201
202 memcpy(ab ,a,8);
203 memcpy(ab+8,b,8);
204
205 Dbprintf("AB: %02x %02x %02x %02x %02x %02x %02x %02x", ab[0],ab[1],ab[2],ab[3],ab[4],ab[5],ab[6],ab[7] );
206 Dbprintf("AB: %02x %02x %02x %02x %02x %02x %02x %02x", ab[8],ab[9],ab[10],ab[11],ab[12],ab[13],ab[14],ab[15] );
207
208 // encrypt
209 tdes_2key_enc(enc_ab, ab, 16, key);
210
211 Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", enc_ab[0],enc_ab[1],enc_ab[2],enc_ab[3],enc_ab[4],enc_ab[5],enc_ab[6],enc_ab[7] );
212 Dbprintf("e_enc_ab: %02x %02x %02x %02x %02x %02x %02x %02x", enc_ab[8],enc_ab[9],enc_ab[10],enc_ab[11],enc_ab[12],enc_ab[13],enc_ab[14],enc_ab[15] );
213
214 len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, enc_ab, receivedAnswer, receivedAnswerPar, NULL);
215 if (len != 11) {
216 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
217 OnError(1);
218 return;
219 }
220
221 // the tags' encryption of our nonce, A.
222 memcpy(enc_key, receivedAnswer+1, 8);
223
224 // clear B.
225 memset(b, 0x00, 8);
226
227 // decrypt
228 tdes_2key_dec(b, enc_key, 8, key );
229 if ( memcmp(a, b, 8) == 0 )
230 Dbprintf("Verified key");
231 else
232 Dbprintf("failed authentication");
233
234 Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x", a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7] );
235 Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x", b[0],b[1],b[2],b[3],b[4],b[5],b[6],b[7] );
236 }
237
238 if( mifare_ultra_readblock(blockNo, dataout) ) {
239 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");
240 OnError(2);
241 return;
242 }
243
244 if( mifare_ultra_halt() ) {
245 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
246 OnError(3);
247 return;
248 }
249
250 cmd_send(CMD_ACK,1,0,0,dataout,16);
251 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
252 LEDsoff();
253 }
254 //-----------------------------------------------------------------------------
255 // Select, Authenticate, Read a MIFARE tag.
256 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)
257 //-----------------------------------------------------------------------------
258 void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
259 {
260 // params
261 uint8_t sectorNo = arg0;
262 uint8_t keyType = arg1;
263 uint64_t ui64Key = 0;
264 ui64Key = bytes_to_num(datain, 6);
265
266 // variables
267 byte_t isOK = 0;
268 byte_t dataoutbuf[16 * 16];
269 uint8_t uid[10];
270 uint32_t cuid;
271 struct Crypto1State mpcs = {0, 0};
272 struct Crypto1State *pcs;
273 pcs = &mpcs;
274
275 // clear trace
276 clear_trace();
277
278 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
279
280 LED_A_ON();
281 LED_B_OFF();
282 LED_C_OFF();
283
284 isOK = 1;
285 if(!iso14443a_select_card(uid, NULL, &cuid)) {
286 isOK = 0;
287 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
288 }
289
290
291 if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
292 isOK = 0;
293 if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
294 }
295
296 for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
297 if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {
298 isOK = 0;
299 if (MF_DBGLEVEL >= 1) Dbprintf("Read sector %2d block %2d error", sectorNo, blockNo);
300 break;
301 }
302 }
303
304 if(mifare_classic_halt(pcs, cuid)) {
305 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
306 }
307
308 // ----------------------------- crypto1 destroy
309 crypto1_destroy(pcs);
310
311 if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
312
313 LED_B_ON();
314 cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16*NumBlocksPerSector(sectorNo));
315 LED_B_OFF();
316
317 // Thats it...
318 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
319 LEDsoff();
320 }
321
322 void MifareUReadCard(uint8_t arg0, int arg1, uint8_t *datain)
323 {
324 // params
325 uint8_t sectorNo = arg0;
326 int Pages = arg1;
327 int countpages = 0;
328 byte_t dataout[176] = {0x00};;
329
330 LEDsoff();
331 LED_A_ON();
332 clear_trace();
333 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
334
335 int len = iso14443a_select_card(NULL, NULL, NULL);
336 if (!len) {
337 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%d)",len);
338 OnError(1);
339 return;
340 }
341
342 for (int i = 0; i < Pages; i++){
343
344 len = mifare_ultra_readblock(sectorNo * 4 + i, dataout + 4 * i);
345
346 if (len) {
347 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);
348 OnError(2);
349 return;
350 } else {
351 countpages++;
352 }
353 }
354
355 len = mifare_ultra_halt();
356 if (len) {
357 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
358 OnError(3);
359 return;
360 }
361
362 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Pages read %d", countpages);
363
364 len = Pages * 4;
365
366 cmd_send(CMD_ACK, 1, 0, 0, dataout, len);
367 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
368 LEDsoff();
369 }
370
371 //-----------------------------------------------------------------------------
372 // Select, Authenticate, Write a MIFARE tag.
373 // read block
374 //-----------------------------------------------------------------------------
375 void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
376 {
377 // params
378 uint8_t blockNo = arg0;
379 uint8_t keyType = arg1;
380 uint64_t ui64Key = 0;
381 byte_t blockdata[16];
382
383 ui64Key = bytes_to_num(datain, 6);
384 memcpy(blockdata, datain + 10, 16);
385
386 // variables
387 byte_t isOK = 0;
388 uint8_t uid[10];
389 uint32_t cuid;
390 struct Crypto1State mpcs = {0, 0};
391 struct Crypto1State *pcs;
392 pcs = &mpcs;
393
394 // clear trace
395 clear_trace();
396
397 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
398
399 LED_A_ON();
400 LED_B_OFF();
401 LED_C_OFF();
402
403 while (true) {
404 if(!iso14443a_select_card(uid, NULL, &cuid)) {
405 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
406 break;
407 };
408
409 if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
410 if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
411 break;
412 };
413
414 if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {
415 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
416 break;
417 };
418
419 if(mifare_classic_halt(pcs, cuid)) {
420 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
421 break;
422 };
423
424 isOK = 1;
425 break;
426 }
427
428 // ----------------------------- crypto1 destroy
429 crypto1_destroy(pcs);
430
431 if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
432
433 LED_B_ON();
434 cmd_send(CMD_ACK,isOK,0,0,0,0);
435 LED_B_OFF();
436
437
438 // Thats it...
439 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
440 LEDsoff();
441 }
442
443 void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
444 {
445 uint8_t blockNo = arg0;
446 byte_t blockdata[16] = {0x00};
447
448 memcpy(blockdata, datain, 16);
449
450 uint8_t uid[10] = {0x00};
451
452 LED_A_ON(); LED_B_OFF(); LED_C_OFF();
453
454 clear_trace();
455 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
456
457 if(!iso14443a_select_card(uid, NULL, NULL)) {
458 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
459 OnError(0);
460 return;
461 };
462
463 if(mifare_ultra_writeblock(blockNo, blockdata)) {
464 if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
465 OnError(0);
466 return; };
467
468 if(mifare_ultra_halt()) {
469 if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
470 OnError(0);
471 return;
472 };
473
474 if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
475
476 cmd_send(CMD_ACK,1,0,0,0,0);
477 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
478 LEDsoff();
479 }
480
481 void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
482 {
483 uint8_t blockNo = arg0;
484 byte_t blockdata[4] = {0x00};
485
486 memcpy(blockdata, datain,4);
487
488 uint8_t uid[10] = {0x00};
489
490 LED_A_ON(); LED_B_OFF(); LED_C_OFF();
491 clear_trace();
492 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
493
494 if(!iso14443a_select_card(uid, NULL, NULL)) {
495 if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
496 OnError(0);
497 return;
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 //
1222 // DESFIRE
1223 //
1224
1225 void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){
1226
1227 byte_t dataout[11] = {0x00};
1228 uint8_t uid[10] = {0x00};
1229 uint32_t cuid;
1230
1231 clear_trace();
1232 iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
1233
1234 int len = iso14443a_select_card(uid, NULL, &cuid);
1235 if(!len) {
1236 if (MF_DBGLEVEL >= MF_DBG_ERROR)
1237 Dbprintf("Can't select card");
1238 //OnError(1);
1239 return;
1240 };
1241
1242 if(mifare_desfire_des_auth1(cuid, dataout)){
1243 if (MF_DBGLEVEL >= MF_DBG_ERROR)
1244 Dbprintf("Authentication part1: Fail.");
1245 //OnError(4);
1246 return;
1247 }
1248
1249 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");
1250
1251 cmd_send(CMD_ACK,1,cuid,0,dataout, sizeof(dataout));
1252 }
1253
1254 void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){
1255
1256 uint32_t cuid = arg0;
1257 uint8_t key[16] = {0x00};
1258 byte_t isOK = 0;
1259 byte_t dataout[12] = {0x00};
1260
1261 memcpy(key, datain, 16);
1262
1263 isOK = mifare_desfire_des_auth2(cuid, key, dataout);
1264
1265 if( isOK) {
1266 if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
1267 Dbprintf("Authentication part2: Failed");
1268 //OnError(4);
1269 return;
1270 }
1271
1272 if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
1273 DbpString("AUTH 2 FINISHED");
1274
1275 cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout));
1276 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1277 LEDsoff();
1278 }
1279
1280 void OnSuccess(){
1281 pcb_blocknum = 0;
1282 ReaderTransmit(deselect_cmd, 3 , NULL);
1283 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1284 LEDsoff();
1285 }
1286
1287 void OnError(uint8_t reason){
1288 pcb_blocknum = 0;
1289 ReaderTransmit(deselect_cmd, 3 , NULL);
1290 FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
1291 cmd_send(CMD_ACK,0,reason,0,0,0);
1292 LEDsoff();
1293 }
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