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CHG: Added calling clear bigbuff to zero out it also, instead of just "free" it.
[proxmark3-svn] / armsrc / mifareutil.c
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1//-----------------------------------------------------------------------------\r
2// Merlok, May 2011, 2012\r
3// Many authors, whom made it possible\r
4//\r
5// This code is licensed to you under the terms of the GNU GPL, version 2 or,\r
6// at your option, any later version. See the LICENSE.txt file for the text of\r
7// the license.\r
8//-----------------------------------------------------------------------------\r
9// Work with mifare cards.\r
10//-----------------------------------------------------------------------------\r
11\r
12#include "proxmark3.h"\r
13#include "apps.h"\r
14#include "util.h"\r
15#include "string.h"\r
16\r
17#include "iso14443crc.h"\r
18#include "iso14443a.h"\r
19#include "crapto1.h"\r
20#include "mifareutil.h"\r
21#include "parity.h"\r
22#include "des.h"\r
23\r
24int MF_DBGLEVEL = MF_DBG_ALL;\r
25\r
26// crypto1 helpers\r
27void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){\r
28 uint8_t bt = 0;\r
29 int i;\r
30 \r
31 if (len != 1) {\r
32 for (i = 0; i < len; i++)\r
33 data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];\r
34 } else {\r
35 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], 0)) << 0;\r
36 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], 1)) << 1;\r
37 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], 2)) << 2;\r
38 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], 3)) << 3;\r
39 data[0] = bt;\r
40 }\r
41 return;\r
42}\r
43\r
44void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par) {\r
45 uint8_t bt = 0;\r
46 int i;\r
47 par[0] = 0;\r
48 \r
49 for (i = 0; i < len; i++) {\r
50 bt = data[i];\r
51 data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];\r
52 if ((i&0x0007) == 0) \r
53 par[i>>3] = 0;\r
54 par[i>>3] |= (((filter(pcs->odd) ^ oddparity8(bt)) & 0x01)<<(7-(i&0x0007)));\r
55 } \r
56}\r
57\r
58uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) {\r
59 uint8_t bt = 0;\r
60 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, 0)) << 0;\r
61 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, 1)) << 1;\r
62 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, 2)) << 2;\r
63 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, 3)) << 3;\r
64 return bt;\r
65}\r
66\r
67// send X byte basic commands\r
68int mifare_sendcmd(uint8_t cmd, uint8_t* data, uint8_t data_size, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)\r
69{\r
70 uint8_t dcmd[data_size+3];\r
71 dcmd[0] = cmd;\r
72 memcpy(dcmd+1,data,data_size);\r
73 AppendCrc14443a(dcmd, data_size+1);\r
74 ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
75 int len = ReaderReceive(answer, answer_parity);\r
76 if(!len) {\r
77 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("%02X Cmd failed. Card timeout.", cmd);\r
78 len = ReaderReceive(answer,answer_parity);\r
79 }\r
80 return len;\r
81}\r
82\r
83// send 2 byte commands\r
84int 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)\r
85{\r
86 uint8_t dcmd[4] = {0x00};\r
87 uint8_t ecmd[4] = {0x00};\r
88 uint16_t pos, res;\r
89 uint8_t par[1] = {0x00}; // 1 Byte parity is enough here\r
90 dcmd[0] = cmd;\r
91 dcmd[1] = data;\r
92 AppendCrc14443a(dcmd, 2);\r
93 \r
94 memcpy(ecmd, dcmd, sizeof(dcmd));\r
95 \r
96 if (crypted) {\r
97 par[0] = 0;\r
98 for (pos = 0; pos < 4; pos++) {\r
99 ecmd[pos] = crypto1_byte(pcs, 0x00, 0) ^ dcmd[pos];\r
100 par[0] |= (((filter(pcs->odd) ^ oddparity8(dcmd[pos])) & 0x01) << (7-pos));\r
101 } \r
102\r
103 ReaderTransmitPar(ecmd, sizeof(ecmd), par, timing);\r
104\r
105 } else {\r
106 ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
107 }\r
108\r
109 int len = ReaderReceive(answer, par);\r
110 \r
111 if (answer_parity) *answer_parity = par[0];\r
112 \r
113 if (crypted == CRYPT_ALL) {\r
114 if (len == 1) {\r
115 res = 0;\r
116 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], 0)) << 0;\r
117 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], 1)) << 1;\r
118 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], 2)) << 2;\r
119 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], 3)) << 3;\r
120 answer[0] = res;\r
121 \r
122 } else {\r
123 for (pos = 0; pos < len; pos++)\r
124 answer[pos] = crypto1_byte(pcs, 0x00, 0) ^ answer[pos];\r
125 }\r
126 }\r
127 \r
128 return len;\r
129}\r
130\r
131// mifare classic commands\r
132int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested) \r
133{\r
134 return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL, NULL);\r
135}\r
136\r
137int 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) \r
138{\r
139 // variables\r
140 int len; \r
141 uint32_t pos;\r
142 uint8_t par[1] = {0x00};\r
143\r
144 // "random" reader nonce:\r
145 //byte_t nr[4] = {0x55, 0x41, 0x49, 0x92};\r
146 byte_t nr[4] = {0x01, 0x01, 0x01, 0x01};\r
147 \r
148 uint32_t nt, ntpp; // Supplied tag nonce\r
149 \r
150 uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };\r
151 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
152 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE] = {0x00};\r
153 \r
154 // Transmit MIFARE_CLASSIC_AUTH\r
155 len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer, receivedAnswerPar, timing);\r
156 if (MF_DBGLEVEL >= 4) Dbprintf("rand tag nonce len: %x", len); \r
157 if (len != 4) return 1;\r
158 \r
159 // Save the tag nonce (nt)\r
160 nt = bytes_to_num(receivedAnswer, 4);\r
161\r
162 // ----------------------------- crypto1 create\r
163 if (isNested)\r
164 crypto1_destroy(pcs);\r
165\r
166 // Init cipher with key\r
167 crypto1_create(pcs, ui64Key);\r
168\r
169 if (isNested == AUTH_NESTED) {\r
170 // decrypt nt with help of new key \r
171 nt = crypto1_word(pcs, nt ^ uid, 1) ^ nt;\r
172 } else {\r
173 // Load (plain) uid^nt into the cipher\r
174 crypto1_word(pcs, nt ^ uid, 0);\r
175 }\r
176\r
177 // some statistic\r
178 if (!ntptr && (MF_DBGLEVEL >= 3))\r
179 Dbprintf("auth uid: %08x nt: %08x", uid, nt); \r
180 \r
181 // save Nt\r
182 if (ntptr)\r
183 *ntptr = nt;\r
184\r
185 // Generate (encrypted) nr+parity by loading it into the cipher (Nr)\r
186 par[0] = 0;\r
187 for (pos = 0; pos < 4; pos++) {\r
188 mf_nr_ar[pos] = crypto1_byte(pcs, nr[pos], 0) ^ nr[pos];\r
189 par[0] |= (((filter(pcs->odd) ^ oddparity8(nr[pos])) & 0x01) << (7-pos));\r
190 } \r
191 \r
192 // Skip 32 bits in pseudo random generator\r
193 nt = prng_successor(nt,32);\r
194\r
195 // ar+parity\r
196 for (pos = 4; pos < 8; pos++) {\r
197 nt = prng_successor(nt,8);\r
198 mf_nr_ar[pos] = crypto1_byte(pcs,0x00,0) ^ (nt & 0xff);\r
199 par[0] |= (((filter(pcs->odd) ^ oddparity8(nt & 0xff)) & 0x01) << (7-pos));\r
200 } \r
201 \r
202 // Transmit reader nonce and reader answer\r
203 ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par, NULL);\r
204\r
205 // Receive 4 byte tag answer\r
206 len = ReaderReceive(receivedAnswer, receivedAnswerPar);\r
207 if (!len) {\r
208 if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout.");\r
209 return 2;\r
210 }\r
211 \r
212 ntpp = prng_successor(nt, 32) ^ crypto1_word(pcs, 0,0);\r
213\r
214 if (ntpp != bytes_to_num(receivedAnswer, 4)) {\r
215 if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Error card response.");\r
216 return 3;\r
217 }\r
218 return 0;\r
219}\r
220\r
221int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) \r
222{\r
223 // variables\r
224 int len; \r
225 uint8_t bt[2] = {0x00};\r
226 \r
227 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
228 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE] = {0x00};\r
229 \r
230 // command MIFARE_CLASSIC_READBLOCK\r
231 len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
232 if (len == 1) {\r
233 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); \r
234 return 1;\r
235 }\r
236 if (len != 18) {\r
237 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: card timeout. len: %x", len); \r
238 return 2;\r
239 }\r
240\r
241 memcpy(bt, receivedAnswer + 16, 2);\r
242 AppendCrc14443a(receivedAnswer, 16);\r
243 if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {\r
244 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd CRC response error."); \r
245 return 3;\r
246 }\r
247 \r
248 memcpy(blockData, receivedAnswer, 16);\r
249 return 0;\r
250}\r
251\r
252// mifare ultralight commands\r
253int mifare_ul_ev1_auth(uint8_t *keybytes, uint8_t *pack){\r
254\r
255 uint16_t len;\r
256 uint8_t resp[4] = {0x00};\r
257 uint8_t respPar[1] = {0x00};\r
258 uint8_t key[4] = {0x00};\r
259 memcpy(key, keybytes, 4);\r
260\r
261 if (MF_DBGLEVEL >= MF_DBG_EXTENDED)\r
262 Dbprintf("EV1 Auth : %02x%02x%02x%02x", key[0], key[1], key[2], key[3]);\r
263 \r
264 len = mifare_sendcmd(0x1B, key, sizeof(key), resp, respPar, NULL);\r
265\r
266 if (len != 4) {\r
267 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x %u", resp[0], len);\r
268 return 0;\r
269 }\r
270\r
271 if (MF_DBGLEVEL >= MF_DBG_EXTENDED)\r
272 Dbprintf("Auth Resp: %02x%02x%02x%02x", resp[0],resp[1],resp[2],resp[3]);\r
273\r
274 memcpy(pack, resp, 4);\r
275 return 1;\r
276}\r
277\r
278int mifare_ultra_auth(uint8_t *keybytes){\r
279\r
280 /// 3des2k\r
281\r
282 uint8_t random_a[8] = {1,1,1,1,1,1,1,1};\r
283 uint8_t random_b[8] = {0x00};\r
284 uint8_t enc_random_b[8] = {0x00};\r
285 uint8_t rnd_ab[16] = {0x00};\r
286 uint8_t IV[8] = {0x00};\r
287 uint8_t key[16] = {0x00};\r
288 memcpy(key, keybytes, 16);\r
289\r
290 uint16_t len;\r
291 uint8_t resp[19] = {0x00};\r
292 uint8_t respPar[3] = {0,0,0};\r
293\r
294 // REQUEST AUTHENTICATION\r
295 len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, resp, respPar ,NULL);\r
296 if (len != 11) {\r
297 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);\r
298 return 0;\r
299 }\r
300\r
301 // tag nonce.\r
302 memcpy(enc_random_b,resp+1,8);\r
303\r
304 // decrypt nonce.\r
305 tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );\r
306 rol(random_b,8);\r
307 memcpy(rnd_ab ,random_a,8);\r
308 memcpy(rnd_ab+8,random_b,8);\r
309\r
310 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
311 Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x",\r
312 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]);\r
313\r
314 Dbprintf(" B: %02x %02x %02x %02x %02x %02x %02x %02x",\r
315 random_b[0],random_b[1],random_b[2],random_b[3],random_b[4],random_b[5],random_b[6],random_b[7]);\r
316\r
317 Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",\r
318 rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);\r
319\r
320 Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",\r
321 rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15] );\r
322 }\r
323\r
324 // encrypt out, in, length, key, iv\r
325 tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);\r
326 //len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, resp, respPar, NULL);\r
327 len = mifare_sendcmd(0xAF, rnd_ab, sizeof(rnd_ab), resp, respPar, NULL);\r
328 if (len != 11) {\r
329 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);\r
330 return 0;\r
331 }\r
332\r
333 uint8_t enc_resp[8] = { 0,0,0,0,0,0,0,0 };\r
334 uint8_t resp_random_a[8] = { 0,0,0,0,0,0,0,0 };\r
335 memcpy(enc_resp, resp+1, 8);\r
336\r
337 // decrypt out, in, length, key, iv \r
338 tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b);\r
339 if ( memcmp(resp_random_a, random_a, 8) != 0 ) {\r
340 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("failed authentication");\r
341 return 0;\r
342 }\r
343\r
344 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
345 Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", \r
346 rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],\r
347 rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);\r
348\r
349 Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",\r
350 rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],\r
351 rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15]);\r
352\r
353 Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x",\r
354 random_a[0],random_a[1],random_a[2],random_a[3],\r
355 random_a[4],random_a[5],random_a[6],random_a[7]);\r
356\r
357 Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x",\r
358 resp_random_a[0],resp_random_a[1],resp_random_a[2],resp_random_a[3],\r
359 resp_random_a[4],resp_random_a[5],resp_random_a[6],resp_random_a[7]);\r
360 }\r
361 return 1;\r
362}\r
363\r
364int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData)\r
365{\r
366 uint16_t len;\r
367 uint8_t bt[2] = {0x00};\r
368 uint8_t receivedAnswer[MAX_FRAME_SIZE] = {0x00};\r
369 uint8_t receivedAnswerPar[MAX_PARITY_SIZE] = {0x00};\r
370 \r
371 len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
372 if (len == 1) {\r
373 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
374 return 1;\r
375 }\r
376 if (len != 18) {\r
377 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: card timeout. len: %x", len);\r
378 return 2;\r
379 }\r
380 \r
381 memcpy(bt, receivedAnswer + 16, 2);\r
382 AppendCrc14443a(receivedAnswer, 16);\r
383 if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {\r
384 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd CRC response error.");\r
385 return 3;\r
386 }\r
387 \r
388 memcpy(blockData, receivedAnswer, 14);\r
389 return 0;\r
390}\r
391\r
392int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) \r
393{\r
394 // variables\r
395 uint16_t len; \r
396 uint32_t pos = 0;\r
397 uint8_t par[3] = {0x00}; // enough for 18 Bytes to send\r
398 byte_t res = 0;\r
399 \r
400 uint8_t d_block[18], d_block_enc[18];\r
401 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
402 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE] = {0x00};\r
403 \r
404 // command MIFARE_CLASSIC_WRITEBLOCK\r
405 len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
406\r
407 if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK\r
408 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); \r
409 return 1;\r
410 }\r
411 \r
412 memcpy(d_block, blockData, 16);\r
413 AppendCrc14443a(d_block, 16);\r
414 \r
415 // crypto\r
416 for (pos = 0; pos < 18; pos++) {\r
417 d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ d_block[pos];\r
418 par[pos>>3] |= (((filter(pcs->odd) ^ oddparity8(d_block[pos])) & 0x01) << (7 - (pos&0x0007)));\r
419 } \r
420\r
421 ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par, NULL);\r
422\r
423 // Receive the response\r
424 len = ReaderReceive(receivedAnswer, receivedAnswerPar); \r
425\r
426 res = 0;\r
427 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], 0)) << 0;\r
428 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], 1)) << 1;\r
429 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], 2)) << 2;\r
430 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], 3)) << 3;\r
431\r
432 if ((len != 1) || (res != 0x0A)) {\r
433 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd send data2 Error: %02x", res); \r
434 return 2;\r
435 }\r
436 \r
437 return 0;\r
438}\r
439\r
440/* // command not needed, but left for future testing\r
441int mifare_ultra_writeblock_compat(uint8_t blockNo, uint8_t *blockData) \r
442{\r
443 uint16_t len;\r
444 uint8_t par[3] = {0}; // enough for 18 parity bits\r
445 uint8_t d_block[18] = {0x00};\r
446 uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
447 uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
448\r
449 len = mifare_sendcmd_short(NULL, true, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
450\r
451 if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK\r
452 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
453 Dbprintf("Cmd Addr Error: %02x", receivedAnswer[0]);\r
454 return 1;\r
455 }\r
456\r
457 memcpy(d_block, blockData, 16);\r
458 AppendCrc14443a(d_block, 16);\r
459\r
460 ReaderTransmitPar(d_block, sizeof(d_block), par, NULL);\r
461\r
462 len = ReaderReceive(receivedAnswer, receivedAnswerPar);\r
463\r
464 if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK\r
465 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
466 Dbprintf("Cmd Data Error: %02x %d", receivedAnswer[0],len);\r
467 return 2;\r
468 }\r
469 return 0;\r
470}\r
471*/\r
472\r
473int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData)\r
474{\r
475 uint16_t len;\r
476 uint8_t d_block[5] = {0x00};\r
477 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
478 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE] = {0x00};\r
479\r
480 // command MIFARE_CLASSIC_WRITEBLOCK\r
481 d_block[0]= blockNo;\r
482 memcpy(d_block+1,blockData,4);\r
483 //AppendCrc14443a(d_block, 6);\r
484\r
485 len = mifare_sendcmd(0xA2, d_block, sizeof(d_block), receivedAnswer, receivedAnswerPar, NULL);\r
486\r
487 if (receivedAnswer[0] != 0x0A) { // 0x0a - ACK\r
488 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
489 Dbprintf("Cmd Send Error: %02x %d", receivedAnswer[0],len);\r
490 return 1;\r
491 }\r
492 return 0;\r
493}\r
494int mifare_classic_halt_ex(struct Crypto1State *pcs) {\r
495 uint16_t len; \r
496 uint8_t receivedAnswer[4] = {0x00};\r
497 uint8_t receivedAnswerPar[4] = {0x00};\r
498\r
499 len = mifare_sendcmd_short(pcs, pcs == NULL ? false:true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);\r
500 if (len != 0) {\r
501 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("halt error. response len: %x", len); \r
502 return 1;\r
503 }\r
504 return 0;\r
505}\r
506int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) {\r
507 return mifare_classic_halt_ex(pcs);\r
508}\r
509\r
510int mifare_ultra_halt()\r
511{\r
512 uint16_t len;\r
513 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
514 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE] = {0x00};\r
515 \r
516 len = mifare_sendcmd_short(NULL, true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);\r
517 if (len != 0) {\r
518 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
519 Dbprintf("halt error. response len: %x", len);\r
520 return 1;\r
521 }\r
522 return 0;\r
523}\r
524\r
525\r
526// Mifare Memory Structure: up to 32 Sectors with 4 blocks each (1k and 2k cards),\r
527// plus evtl. 8 sectors with 16 blocks each (4k cards)\r
528uint8_t NumBlocksPerSector(uint8_t sectorNo) \r
529{\r
530 if (sectorNo < 32) \r
531 return 4;\r
532 return 16;\r
533}\r
534\r
535uint8_t FirstBlockOfSector(uint8_t sectorNo) \r
536{\r
537 if (sectorNo < 32)\r
538 return sectorNo * 4;\r
539 else\r
540 return 32*4 + (sectorNo - 32) * 16;\r
541 \r
542}\r
543\r
544// work with emulator memory\r
545void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {\r
546 emlSetMem_xt(data, blockNum, blocksCount, 16);\r
547}\r
548\r
549void emlSetMem_xt(uint8_t *data, int blockNum, int blocksCount, int blockBtWidth) {\r
550 uint8_t* emCARD = BigBuf_get_EM_addr();\r
551 memcpy(emCARD + blockNum * blockBtWidth, data, blocksCount * blockBtWidth);\r
552}\r
553\r
554void emlGetMem(uint8_t *data, int blockNum, int blocksCount) {\r
555 uint8_t* emCARD = BigBuf_get_EM_addr();\r
556 memcpy(data, emCARD + blockNum * 16, blocksCount * 16);\r
557}\r
558\r
559void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) {\r
560 uint8_t* emCARD = BigBuf_get_EM_addr();\r
561 memcpy(data, emCARD + bytePtr, byteCount);\r
562}\r
563\r
564int emlCheckValBl(int blockNum) {\r
565 uint8_t* emCARD = BigBuf_get_EM_addr();\r
566 uint8_t* data = emCARD + blockNum * 16;\r
567\r
568 if ((data[0] != (data[4] ^ 0xff)) || (data[0] != data[8]) ||\r
569 (data[1] != (data[5] ^ 0xff)) || (data[1] != data[9]) ||\r
570 (data[2] != (data[6] ^ 0xff)) || (data[2] != data[10]) ||\r
571 (data[3] != (data[7] ^ 0xff)) || (data[3] != data[11]) ||\r
572 (data[12] != (data[13] ^ 0xff)) || (data[12] != data[14]) ||\r
573 (data[12] != (data[15] ^ 0xff))\r
574 ) \r
575 return 1;\r
576 return 0;\r
577}\r
578\r
579int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) {\r
580 uint8_t* emCARD = BigBuf_get_EM_addr();\r
581 uint8_t* data = emCARD + blockNum * 16;\r
582 \r
583 if (emlCheckValBl(blockNum))\r
584 return 1;\r
585 \r
586 memcpy(blReg, data, 4);\r
587 *blBlock = data[12];\r
588 return 0;\r
589}\r
590\r
591int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {\r
592 uint8_t* emCARD = BigBuf_get_EM_addr();\r
593 uint8_t* data = emCARD + blockNum * 16;\r
594 \r
595 memcpy(data + 0, &blReg, 4);\r
596 memcpy(data + 8, &blReg, 4);\r
597 blReg = blReg ^ 0xffffffff;\r
598 memcpy(data + 4, &blReg, 4);\r
599 \r
600 data[12] = blBlock;\r
601 data[13] = blBlock ^ 0xff;\r
602 data[14] = blBlock;\r
603 data[15] = blBlock ^ 0xff;\r
604 \r
605 return 0;\r
606}\r
607\r
608uint64_t emlGetKey(int sectorNum, int keyType) {\r
609 uint8_t key[6] = {0x00};\r
610 uint8_t* emCARD = BigBuf_get_EM_addr();\r
611 \r
612 memcpy(key, emCARD + 16 * (FirstBlockOfSector(sectorNum) + NumBlocksPerSector(sectorNum) - 1) + keyType * 10, 6);\r
613 return bytes_to_num(key, 6);\r
614}\r
615\r
616void emlClearMem(void) {\r
617 int b;\r
618 \r
619 const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};\r
620 const uint8_t uid[] = {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};\r
621 uint8_t* emCARD = BigBuf_get_EM_addr();\r
622 \r
623 memset(emCARD, 0, CARD_MEMORY_SIZE);\r
624 \r
625 // fill sectors trailer data\r
626 for(b = 3; b < 256; b<127?(b+=4):(b+=16))\r
627 emlSetMem((uint8_t *)trailer, b , 1);\r
628\r
629 // uid\r
630 emlSetMem((uint8_t *)uid, 0, 1);\r
631 return;\r
632}\r
633\r
634\r
635// Mifare desfire commands\r
636int 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)\r
637{\r
638 uint8_t dcmd[5] = {0x00};\r
639 dcmd[0] = cmd;\r
640 memcpy(dcmd+1,data,2);\r
641 AppendCrc14443a(dcmd, 3);\r
642 \r
643 ReaderTransmit(dcmd, sizeof(dcmd), NULL);\r
644 int len = ReaderReceive(answer, answer_parity);\r
645 if(!len) {\r
646 if (MF_DBGLEVEL >= MF_DBG_ERROR) \r
647 Dbprintf("Authentication failed. Card timeout.");\r
648 return 1;\r
649 }\r
650 return len;\r
651}\r
652\r
653int 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)\r
654{\r
655 uint8_t dcmd[20] = {0x00};\r
656 dcmd[0] = cmd;\r
657 memcpy(dcmd+1,data,17);\r
658 AppendCrc14443a(dcmd, 18);\r
659\r
660 ReaderTransmit(dcmd, sizeof(dcmd), NULL);\r
661 int len = ReaderReceive(answer, answer_parity);\r
662 if(!len){\r
663 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
664 Dbprintf("Authentication failed. Card timeout.");\r
665 return 1;\r
666 }\r
667 return len;\r
668}\r
669\r
670int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData){\r
671\r
672 int len;\r
673 // load key, keynumber\r
674 uint8_t data[2]={0x0a, 0x00};\r
675 uint8_t receivedAnswer[MAX_FRAME_SIZE] = {0x00};\r
676 uint8_t receivedAnswerPar[MAX_PARITY_SIZE] = {0x00};\r
677 \r
678 len = mifare_sendcmd_special(NULL, 1, 0x02, data, receivedAnswer,receivedAnswerPar,NULL);\r
679 if (len == 1) {\r
680 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
681 Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
682 return 1;\r
683 }\r
684 \r
685 if (len == 12) {\r
686 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
687 Dbprintf("Auth1 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
688 receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
689 receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
690 receivedAnswer[10],receivedAnswer[11]);\r
691 }\r
692 memcpy(blockData, receivedAnswer, 12);\r
693 return 0;\r
694 }\r
695 return 1;\r
696}\r
697\r
698int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){\r
699\r
700 int len;\r
701 uint8_t data[17] = {0x00};\r
702 data[0] = 0xAF;\r
703 memcpy(data+1,key,16);\r
704 \r
705 uint8_t receivedAnswer[MAX_FRAME_SIZE] = {0x00};\r
706 uint8_t receivedAnswerPar[MAX_PARITY_SIZE] = {0x00};\r
707 \r
708 len = mifare_sendcmd_special2(NULL, 1, 0x03, data, receivedAnswer, receivedAnswerPar ,NULL);\r
709 \r
710 if ((receivedAnswer[0] == 0x03) && (receivedAnswer[1] == 0xae)) {\r
711 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
712 Dbprintf("Auth Error: %02x %02x", receivedAnswer[0], receivedAnswer[1]);\r
713 return 1;\r
714 }\r
715 \r
716 if (len == 12){\r
717 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
718 Dbprintf("Auth2 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
719 receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
720 receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
721 receivedAnswer[10],receivedAnswer[11]);\r
722 }\r
723 memcpy(blockData, receivedAnswer, 12);\r
724 return 0;\r
725 }\r
726 return 1;\r
727}\r
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