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Remove local armsrc/stdint.h and fix some other #includes
[proxmark3-svn] / armsrc / mifareutil.c
1 //-----------------------------------------------------------------------------
2 // Merlok, May 2011, 2012
3 // Many authors, whom made it possible
4 //
5 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
6 // at your option, any later version. See the LICENSE.txt file for the text of
7 // the license.
8 //-----------------------------------------------------------------------------
9 // Work with mifare cards.
10 //-----------------------------------------------------------------------------
11
12 #include "proxmark3.h"
13 #include "apps.h"
14 #include "util.h"
15 #include "string.h"
16
17 #include "iso14443crc.h"
18 #include "iso14443a.h"
19 #include "crapto1.h"
20 #include "mifareutil.h"
21 #include "des.h"
22
23 int MF_DBGLEVEL = MF_DBG_ALL;
24
25 // crypto1 helpers
26 void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){
27 uint8_t bt = 0;
28 int i;
29
30 if (len != 1) {
31 for (i = 0; i < len; i++)
32 data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];
33 } else {
34 bt = 0;
35 for (i = 0; i < 4; i++)
36 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], i)) << i;
37
38 data[0] = bt;
39 }
40 return;
41 }
42
43 void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par) {
44 uint8_t bt = 0;
45 int i;
46 par[0] = 0;
47
48 for (i = 0; i < len; i++) {
49 bt = data[i];
50 data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];
51 if((i&0x0007) == 0)
52 par[i>>3] = 0;
53 par[i>>3] |= (((filter(pcs->odd) ^ oddparity(bt)) & 0x01)<<(7-(i&0x0007)));
54 }
55 return;
56 }
57
58 uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) {
59 uint8_t bt = 0;
60 int i;
61
62 for (i = 0; i < 4; i++)
63 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, i)) << i;
64
65 return bt;
66 }
67
68 // send X byte basic commands
69 int mifare_sendcmd(uint8_t cmd, uint8_t* data, uint8_t data_size, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)
70 {
71 uint8_t dcmd[data_size+3];
72 dcmd[0] = cmd;
73 memcpy(dcmd+1,data,data_size);
74 AppendCrc14443a(dcmd, data_size+1);
75 ReaderTransmit(dcmd, sizeof(dcmd), timing);
76 int len = ReaderReceive(answer, answer_parity);
77 if(!len) {
78 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("%02X Cmd failed. Card timeout.", cmd);
79 len = ReaderReceive(answer,answer_parity);
80 //return 0;
81 }
82 return len;
83 }
84
85 // send 2 byte commands
86 int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing)
87 {
88 uint8_t dcmd[4], ecmd[4];
89 uint16_t pos, res;
90 uint8_t par[1]; // 1 Byte parity is enough here
91 dcmd[0] = cmd;
92 dcmd[1] = data;
93 AppendCrc14443a(dcmd, 2);
94
95 memcpy(ecmd, dcmd, sizeof(dcmd));
96
97 if (crypted) {
98 par[0] = 0;
99 for (pos = 0; pos < 4; pos++)
100 {
101 ecmd[pos] = crypto1_byte(pcs, 0x00, 0) ^ dcmd[pos];
102 par[0] |= (((filter(pcs->odd) ^ oddparity(dcmd[pos])) & 0x01) << (7-pos));
103 }
104
105 ReaderTransmitPar(ecmd, sizeof(ecmd), par, timing);
106
107 } else {
108 ReaderTransmit(dcmd, sizeof(dcmd), timing);
109 }
110
111 int len = ReaderReceive(answer, par);
112
113 if (answer_parity) *answer_parity = par[0];
114
115 if (crypted == CRYPT_ALL) {
116 if (len == 1) {
117 res = 0;
118 for (pos = 0; pos < 4; pos++)
119 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], pos)) << pos;
120
121 answer[0] = res;
122
123 } else {
124 for (pos = 0; pos < len; pos++)
125 {
126 answer[pos] = crypto1_byte(pcs, 0x00, 0) ^ answer[pos];
127 }
128 }
129 }
130
131 return len;
132 }
133
134 // mifare classic commands
135 int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested)
136 {
137 return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL, NULL);
138 }
139
140 int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested, uint32_t *ntptr, uint32_t *timing)
141 {
142 // variables
143 int len;
144 uint32_t pos;
145 uint8_t tmp4[4];
146 uint8_t par[1] = {0x00};
147 byte_t nr[4];
148 uint32_t nt, ntpp; // Supplied tag nonce
149
150 uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
151 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
152 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
153
154 // Transmit MIFARE_CLASSIC_AUTH
155 len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer, receivedAnswerPar, timing);
156 if (MF_DBGLEVEL >= 4) Dbprintf("rand tag nonce len: %x", len);
157 if (len != 4) return 1;
158
159 // "random" reader nonce:
160 nr[0] = 0x55;
161 nr[1] = 0x41;
162 nr[2] = 0x49;
163 nr[3] = 0x92;
164
165 // Save the tag nonce (nt)
166 nt = bytes_to_num(receivedAnswer, 4);
167
168 // ----------------------------- crypto1 create
169 if (isNested)
170 crypto1_destroy(pcs);
171
172 // Init cipher with key
173 crypto1_create(pcs, ui64Key);
174
175 if (isNested == AUTH_NESTED) {
176 // decrypt nt with help of new key
177 nt = crypto1_word(pcs, nt ^ uid, 1) ^ nt;
178 } else {
179 // Load (plain) uid^nt into the cipher
180 crypto1_word(pcs, nt ^ uid, 0);
181 }
182
183 // some statistic
184 if (!ntptr && (MF_DBGLEVEL >= 3))
185 Dbprintf("auth uid: %08x nt: %08x", uid, nt);
186
187 // save Nt
188 if (ntptr)
189 *ntptr = nt;
190
191 // Generate (encrypted) nr+parity by loading it into the cipher (Nr)
192 par[0] = 0;
193 for (pos = 0; pos < 4; pos++)
194 {
195 mf_nr_ar[pos] = crypto1_byte(pcs, nr[pos], 0) ^ nr[pos];
196 par[0] |= (((filter(pcs->odd) ^ oddparity(nr[pos])) & 0x01) << (7-pos));
197 }
198
199 // Skip 32 bits in pseudo random generator
200 nt = prng_successor(nt,32);
201
202 // ar+parity
203 for (pos = 4; pos < 8; pos++)
204 {
205 nt = prng_successor(nt,8);
206 mf_nr_ar[pos] = crypto1_byte(pcs,0x00,0) ^ (nt & 0xff);
207 par[0] |= (((filter(pcs->odd) ^ oddparity(nt & 0xff)) & 0x01) << (7-pos));
208 }
209
210 // Transmit reader nonce and reader answer
211 ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par, NULL);
212
213 // Receive 4 byte tag answer
214 len = ReaderReceive(receivedAnswer, receivedAnswerPar);
215 if (!len)
216 {
217 if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout.");
218 return 2;
219 }
220
221 memcpy(tmp4, receivedAnswer, 4);
222 ntpp = prng_successor(nt, 32) ^ crypto1_word(pcs, 0,0);
223
224 if (ntpp != bytes_to_num(tmp4, 4)) {
225 if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Error card response.");
226 return 3;
227 }
228
229 return 0;
230 }
231
232 int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData)
233 {
234 // variables
235 int len;
236 uint8_t bt[2];
237
238 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
239 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
240
241 // command MIFARE_CLASSIC_READBLOCK
242 len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);
243 if (len == 1) {
244 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
245 return 1;
246 }
247 if (len != 18) {
248 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: card timeout. len: %x", len);
249 return 2;
250 }
251
252 memcpy(bt, receivedAnswer + 16, 2);
253 AppendCrc14443a(receivedAnswer, 16);
254 if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {
255 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd CRC response error.");
256 return 3;
257 }
258
259 memcpy(blockData, receivedAnswer, 16);
260 return 0;
261 }
262
263 // mifare ultralight commands
264 int mifare_ul_ev1_auth(uint8_t *keybytes, uint8_t *pack){
265
266 uint16_t len;
267 uint8_t resp[4];
268 uint8_t respPar[1];
269 uint8_t key[4] = {0x00};
270 memcpy(key, keybytes, 4);
271
272 if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
273 Dbprintf("EV1 Auth : %02x%02x%02x%02x", key[0], key[1], key[2], key[3]);
274 len = mifare_sendcmd(0x1B, key, sizeof(key), resp, respPar, NULL);
275 //len = mifare_sendcmd_short_mfuev1auth(NULL, 0, 0x1B, key, resp, respPar, NULL);
276 if (len != 4) {
277 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x %u", resp[0], len);
278 return 0;
279 }
280
281 if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
282 Dbprintf("Auth Resp: %02x%02x%02x%02x", resp[0],resp[1],resp[2],resp[3]);
283
284 memcpy(pack, resp, 4);
285 return 1;
286 }
287
288 int mifare_ultra_auth(uint8_t *keybytes){
289
290 /// 3des2k
291
292 uint8_t random_a[8] = {1,1,1,1,1,1,1,1};
293 uint8_t random_b[8] = {0x00};
294 uint8_t enc_random_b[8] = {0x00};
295 uint8_t rnd_ab[16] = {0x00};
296 uint8_t IV[8] = {0x00};
297 uint8_t key[16] = {0x00};
298 memcpy(key, keybytes, 16);
299
300 uint16_t len;
301 uint8_t resp[19] = {0x00};
302 uint8_t respPar[3] = {0,0,0};
303
304 // REQUEST AUTHENTICATION
305 len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, resp, respPar ,NULL);
306 if (len != 11) {
307 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);
308 return 0;
309 }
310
311 // tag nonce.
312 memcpy(enc_random_b,resp+1,8);
313
314 // decrypt nonce.
315 tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );
316 rol(random_b,8);
317 memcpy(rnd_ab ,random_a,8);
318 memcpy(rnd_ab+8,random_b,8);
319
320 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
321 Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x",
322 enc_random_b[0],enc_random_b[1],enc_random_b[2],enc_random_b[3],enc_random_b[4],enc_random_b[5],enc_random_b[6],enc_random_b[7]);
323
324 Dbprintf(" B: %02x %02x %02x %02x %02x %02x %02x %02x",
325 random_b[0],random_b[1],random_b[2],random_b[3],random_b[4],random_b[5],random_b[6],random_b[7]);
326
327 Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",
328 rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);
329
330 Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",
331 rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15] );
332 }
333
334 // encrypt out, in, length, key, iv
335 tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);
336 //len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, resp, respPar, NULL);
337 len = mifare_sendcmd(0xAF, rnd_ab, sizeof(rnd_ab), resp, respPar, NULL);
338 if (len != 11) {
339 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);
340 return 0;
341 }
342
343 uint8_t enc_resp[8] = { 0,0,0,0,0,0,0,0 };
344 uint8_t resp_random_a[8] = { 0,0,0,0,0,0,0,0 };
345 memcpy(enc_resp, resp+1, 8);
346
347 // decrypt out, in, length, key, iv
348 tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b);
349 if ( memcmp(resp_random_a, random_a, 8) != 0 ) {
350 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("failed authentication");
351 return 0;
352 }
353
354 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
355 Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",
356 rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],
357 rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);
358
359 Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",
360 rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],
361 rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15]);
362
363 Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x",
364 random_a[0],random_a[1],random_a[2],random_a[3],
365 random_a[4],random_a[5],random_a[6],random_a[7]);
366
367 Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x",
368 resp_random_a[0],resp_random_a[1],resp_random_a[2],resp_random_a[3],
369 resp_random_a[4],resp_random_a[5],resp_random_a[6],resp_random_a[7]);
370 }
371 return 1;
372 }
373
374 int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData)
375 {
376 uint16_t len;
377 uint8_t bt[2];
378 uint8_t receivedAnswer[MAX_FRAME_SIZE];
379 uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
380
381
382 len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);
383 if (len == 1) {
384 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
385 return 1;
386 }
387 if (len != 18) {
388 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: card timeout. len: %x", len);
389 return 2;
390 }
391
392 memcpy(bt, receivedAnswer + 16, 2);
393 AppendCrc14443a(receivedAnswer, 16);
394 if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {
395 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd CRC response error.");
396 return 3;
397 }
398
399 memcpy(blockData, receivedAnswer, 14);
400 return 0;
401 }
402
403 int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData)
404 {
405 // variables
406 uint16_t len, i;
407 uint32_t pos;
408 uint8_t par[3] = {0}; // enough for 18 Bytes to send
409 byte_t res;
410
411 uint8_t d_block[18], d_block_enc[18];
412 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
413 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
414
415 // command MIFARE_CLASSIC_WRITEBLOCK
416 len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);
417
418 if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK
419 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
420 return 1;
421 }
422
423 memcpy(d_block, blockData, 16);
424 AppendCrc14443a(d_block, 16);
425
426 // crypto
427 for (pos = 0; pos < 18; pos++)
428 {
429 d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ d_block[pos];
430 par[pos>>3] |= (((filter(pcs->odd) ^ oddparity(d_block[pos])) & 0x01) << (7 - (pos&0x0007)));
431 }
432
433 ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par, NULL);
434
435 // Receive the response
436 len = ReaderReceive(receivedAnswer, receivedAnswerPar);
437
438 res = 0;
439 for (i = 0; i < 4; i++)
440 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], i)) << i;
441
442 if ((len != 1) || (res != 0x0A)) {
443 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd send data2 Error: %02x", res);
444 return 2;
445 }
446
447 return 0;
448 }
449
450 /* // command not needed, but left for future testing
451 int mifare_ultra_writeblock_compat(uint8_t blockNo, uint8_t *blockData)
452 {
453 uint16_t len;
454 uint8_t par[3] = {0}; // enough for 18 parity bits
455 uint8_t d_block[18] = {0x00};
456 uint8_t receivedAnswer[MAX_FRAME_SIZE];
457 uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
458
459 len = mifare_sendcmd_short(NULL, true, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);
460
461 if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK
462 if (MF_DBGLEVEL >= MF_DBG_ERROR)
463 Dbprintf("Cmd Addr Error: %02x", receivedAnswer[0]);
464 return 1;
465 }
466
467 memcpy(d_block, blockData, 16);
468 AppendCrc14443a(d_block, 16);
469
470 ReaderTransmitPar(d_block, sizeof(d_block), par, NULL);
471
472 len = ReaderReceive(receivedAnswer, receivedAnswerPar);
473
474 if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK
475 if (MF_DBGLEVEL >= MF_DBG_ERROR)
476 Dbprintf("Cmd Data Error: %02x %d", receivedAnswer[0],len);
477 return 2;
478 }
479 return 0;
480 }
481 */
482
483 int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData)
484 {
485 uint16_t len;
486 uint8_t d_block[5] = {0x00};
487 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
488 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
489
490 // command MIFARE_CLASSIC_WRITEBLOCK
491 d_block[0]= blockNo;
492 memcpy(d_block+1,blockData,4);
493 //AppendCrc14443a(d_block, 6);
494
495 len = mifare_sendcmd(0xA2, d_block, sizeof(d_block), receivedAnswer, receivedAnswerPar, NULL);
496
497 if (receivedAnswer[0] != 0x0A) { // 0x0a - ACK
498 if (MF_DBGLEVEL >= MF_DBG_ERROR)
499 Dbprintf("Cmd Send Error: %02x %d", receivedAnswer[0],len);
500 return 1;
501 }
502 return 0;
503 }
504
505 int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid)
506 {
507 uint16_t len;
508 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
509 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
510
511 len = mifare_sendcmd_short(pcs, pcs == NULL ? false:true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);
512 if (len != 0) {
513 if (MF_DBGLEVEL >= MF_DBG_ERROR)
514 Dbprintf("halt error. response len: %x", len);
515 return 1;
516 }
517
518 return 0;
519 }
520
521 int mifare_ultra_halt()
522 {
523 uint16_t len;
524 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
525 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
526
527 len = mifare_sendcmd_short(NULL, true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);
528 if (len != 0) {
529 if (MF_DBGLEVEL >= MF_DBG_ERROR)
530 Dbprintf("halt error. response len: %x", len);
531 return 1;
532 }
533 return 0;
534 }
535
536
537 // Mifare Memory Structure: up to 32 Sectors with 4 blocks each (1k and 2k cards),
538 // plus evtl. 8 sectors with 16 blocks each (4k cards)
539 uint8_t NumBlocksPerSector(uint8_t sectorNo)
540 {
541 if (sectorNo < 32)
542 return 4;
543 else
544 return 16;
545 }
546
547 uint8_t FirstBlockOfSector(uint8_t sectorNo)
548 {
549 if (sectorNo < 32)
550 return sectorNo * 4;
551 else
552 return 32*4 + (sectorNo - 32) * 16;
553
554 }
555
556
557 // work with emulator memory
558 void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {
559 uint8_t* emCARD = BigBuf_get_EM_addr();
560 memcpy(emCARD + blockNum * 16, data, blocksCount * 16);
561 }
562
563 void emlGetMem(uint8_t *data, int blockNum, int blocksCount) {
564 uint8_t* emCARD = BigBuf_get_EM_addr();
565 memcpy(data, emCARD + blockNum * 16, blocksCount * 16);
566 }
567
568 void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) {
569 uint8_t* emCARD = BigBuf_get_EM_addr();
570 memcpy(data, emCARD + bytePtr, byteCount);
571 }
572
573 int emlCheckValBl(int blockNum) {
574 uint8_t* emCARD = BigBuf_get_EM_addr();
575 uint8_t* data = emCARD + blockNum * 16;
576
577 if ((data[0] != (data[4] ^ 0xff)) || (data[0] != data[8]) ||
578 (data[1] != (data[5] ^ 0xff)) || (data[1] != data[9]) ||
579 (data[2] != (data[6] ^ 0xff)) || (data[2] != data[10]) ||
580 (data[3] != (data[7] ^ 0xff)) || (data[3] != data[11]) ||
581 (data[12] != (data[13] ^ 0xff)) || (data[12] != data[14]) ||
582 (data[12] != (data[15] ^ 0xff))
583 )
584 return 1;
585 return 0;
586 }
587
588 int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) {
589 uint8_t* emCARD = BigBuf_get_EM_addr();
590 uint8_t* data = emCARD + blockNum * 16;
591
592 if (emlCheckValBl(blockNum)) {
593 return 1;
594 }
595
596 memcpy(blReg, data, 4);
597 *blBlock = data[12];
598 return 0;
599 }
600
601 int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {
602 uint8_t* emCARD = BigBuf_get_EM_addr();
603 uint8_t* data = emCARD + blockNum * 16;
604
605 memcpy(data + 0, &blReg, 4);
606 memcpy(data + 8, &blReg, 4);
607 blReg = blReg ^ 0xffffffff;
608 memcpy(data + 4, &blReg, 4);
609
610 data[12] = blBlock;
611 data[13] = blBlock ^ 0xff;
612 data[14] = blBlock;
613 data[15] = blBlock ^ 0xff;
614
615 return 0;
616 }
617
618 uint64_t emlGetKey(int sectorNum, int keyType) {
619 uint8_t key[6];
620 uint8_t* emCARD = BigBuf_get_EM_addr();
621
622 memcpy(key, emCARD + 16 * (FirstBlockOfSector(sectorNum) + NumBlocksPerSector(sectorNum) - 1) + keyType * 10, 6);
623 return bytes_to_num(key, 6);
624 }
625
626 void emlClearMem(void) {
627 int b;
628
629 const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
630 const uint8_t uid[] = {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};
631 uint8_t* emCARD = BigBuf_get_EM_addr();
632
633 memset(emCARD, 0, CARD_MEMORY_SIZE);
634
635 // fill sectors trailer data
636 for(b = 3; b < 256; b<127?(b+=4):(b+=16)) {
637 emlSetMem((uint8_t *)trailer, b , 1);
638 }
639
640 // uid
641 emlSetMem((uint8_t *)uid, 0, 1);
642 return;
643 }
644
645
646 // Mifare desfire commands
647 int mifare_sendcmd_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)
648 {
649 uint8_t dcmd[5] = {0x00};
650 dcmd[0] = cmd;
651 memcpy(dcmd+1,data,2);
652 AppendCrc14443a(dcmd, 3);
653
654 ReaderTransmit(dcmd, sizeof(dcmd), NULL);
655 int len = ReaderReceive(answer, answer_parity);
656 if(!len) {
657 if (MF_DBGLEVEL >= MF_DBG_ERROR)
658 Dbprintf("Authentication failed. Card timeout.");
659 return 1;
660 }
661 return len;
662 }
663
664 int mifare_sendcmd_special2(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer,uint8_t *answer_parity, uint32_t *timing)
665 {
666 uint8_t dcmd[20] = {0x00};
667 dcmd[0] = cmd;
668 memcpy(dcmd+1,data,17);
669 AppendCrc14443a(dcmd, 18);
670
671 ReaderTransmit(dcmd, sizeof(dcmd), NULL);
672 int len = ReaderReceive(answer, answer_parity);
673 if(!len){
674 if (MF_DBGLEVEL >= MF_DBG_ERROR)
675 Dbprintf("Authentication failed. Card timeout.");
676 return 1;
677 }
678 return len;
679 }
680
681 int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData){
682
683 int len;
684 // load key, keynumber
685 uint8_t data[2]={0x0a, 0x00};
686 uint8_t receivedAnswer[MAX_FRAME_SIZE];
687 uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
688
689 len = mifare_sendcmd_special(NULL, 1, 0x02, data, receivedAnswer,receivedAnswerPar,NULL);
690 if (len == 1) {
691 if (MF_DBGLEVEL >= MF_DBG_ERROR)
692 Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
693 return 1;
694 }
695
696 if (len == 12) {
697 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
698 Dbprintf("Auth1 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
699 receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],
700 receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],
701 receivedAnswer[10],receivedAnswer[11]);
702 }
703 memcpy(blockData, receivedAnswer, 12);
704 return 0;
705 }
706 return 1;
707 }
708
709 int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){
710
711 int len;
712 uint8_t data[17] = {0x00};
713 data[0] = 0xAF;
714 memcpy(data+1,key,16);
715
716 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
717 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
718
719 len = mifare_sendcmd_special2(NULL, 1, 0x03, data, receivedAnswer, receivedAnswerPar ,NULL);
720
721 if ((receivedAnswer[0] == 0x03) && (receivedAnswer[1] == 0xae)) {
722 if (MF_DBGLEVEL >= MF_DBG_ERROR)
723 Dbprintf("Auth Error: %02x %02x", receivedAnswer[0], receivedAnswer[1]);
724 return 1;
725 }
726
727 if (len == 12){
728 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
729 Dbprintf("Auth2 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
730 receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],
731 receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],
732 receivedAnswer[10],receivedAnswer[11]);
733 }
734 memcpy(blockData, receivedAnswer, 12);
735 return 0;
736 }
737 return 1;
738 }
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