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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#include "mifareutil.h"\r
12\r
13int MF_DBGLEVEL = MF_DBG_ALL;\r
14\r
15// crypto1 helpers\r
16void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){\r
17 uint8_t bt = 0;\r
18 int i;\r
19 \r
20 if (len != 1) {\r
21 for (i = 0; i < len; i++)\r
22 data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];\r
23 } else {\r
24 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], 0)) << 0;\r
25 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], 1)) << 1;\r
26 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], 2)) << 2;\r
27 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], 3)) << 3;\r
28 data[0] = bt;\r
29 }\r
30 return;\r
31}\r
32\r
33void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par) {\r
34 uint8_t bt = 0;\r
35 int i;\r
36 par[0] = 0;\r
37 \r
38 for (i = 0; i < len; i++) {\r
39 bt = data[i];\r
40 data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];\r
41 if ( ( i & 0x0007 ) == 0) \r
42 par[ i >> 3 ] = 0;\r
43 par[ i >> 3 ] |= (((filter(pcs->odd) ^ oddparity8(bt)) & 0x01)<<(7-(i&0x0007)));\r
44 } \r
45}\r
46\r
47uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) {\r
48 uint8_t bt = 0;\r
49 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, 0)) << 0;\r
50 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, 1)) << 1;\r
51 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, 2)) << 2;\r
52 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, 3)) << 3;\r
53 return bt;\r
54}\r
55\r
56// send X byte basic commands\r
57int mifare_sendcmd(uint8_t cmd, uint8_t* data, uint8_t data_size, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing) {\r
58 uint8_t dcmd[data_size+3];\r
59 dcmd[0] = cmd;\r
60 memcpy(dcmd+1, data, data_size);\r
61 AppendCrc14443a(dcmd, data_size+1);\r
62 ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
63 int len = ReaderReceive(answer, answer_parity);\r
64 if(!len) {\r
65 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
66 Dbprintf("%02X Cmd failed. Card timeout.", cmd);\r
67 len = ReaderReceive(answer,answer_parity);\r
68 }\r
69 return len;\r
70}\r
71\r
72// send 2 byte commands\r
73int 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
74 uint16_t pos, res;\r
75 uint8_t dcmd[4] = {cmd, data, 0x00, 0x00};\r
76 uint8_t ecmd[4] = {0x00, 0x00, 0x00, 0x00};\r
77 uint8_t par[1] = {0x00}; // 1 Byte parity is enough here\r
78 AppendCrc14443a(dcmd, 2);\r
79 memcpy(ecmd, dcmd, sizeof(dcmd));\r
80 \r
81 if (crypted) {\r
82 par[0] = 0;\r
83 for (pos = 0; pos < 4; pos++) {\r
84 ecmd[pos] = crypto1_byte(pcs, 0x00, 0) ^ dcmd[pos];\r
85 par[0] |= (((filter(pcs->odd) ^ oddparity8(dcmd[pos])) & 0x01) << (7-pos));\r
86 } \r
87 ReaderTransmitPar(ecmd, sizeof(ecmd), par, timing);\r
88 } else {\r
89 ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
90 }\r
91\r
92 int len = ReaderReceive(answer, par);\r
93 \r
94 if (answer_parity) *answer_parity = par[0];\r
95 \r
96 if (crypted == CRYPT_ALL) {\r
97 if (len == 1) {\r
98 res = 0;\r
99 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], 0)) << 0;\r
100 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], 1)) << 1;\r
101 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], 2)) << 2;\r
102 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], 3)) << 3;\r
103 answer[0] = res; \r
104 } else {\r
105 for (pos = 0; pos < len; pos++)\r
106 answer[pos] = crypto1_byte(pcs, 0x00, 0) ^ answer[pos];\r
107 }\r
108 }\r
109 return len;\r
110}\r
111\r
112// mifare classic commands\r
113int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested) {\r
114 return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL, NULL);\r
115}\r
116\r
117int 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
118 int len; \r
119 uint32_t pos;\r
120 uint8_t par[1] = {0x00};\r
121\r
122 // "random" reader nonce:\r
123 //byte_t nr[4] = {0x55, 0x41, 0x49, 0x92};\r
124 fast_prand();\r
125 byte_t nr[4];\r
126 num_to_bytes(prand(), 4, nr);\r
127 //byte_t nr[4] = {0x01, 0x01, 0x01, 0x01};\r
128 \r
129 uint32_t nt, ntpp; // Supplied tag nonce\r
130 \r
131 uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };\r
132 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
133 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE] = {0x00};\r
134 \r
135 // Transmit MIFARE_CLASSIC_AUTH\r
136 len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer, receivedAnswerPar, timing);\r
137 if (MF_DBGLEVEL >= 4) Dbprintf("rand tag nonce len: %x", len); \r
138 if (len != 4) return 1;\r
139 \r
140 // Save the tag nonce (nt)\r
141 nt = bytes_to_num(receivedAnswer, 4);\r
142\r
143 // ----------------------------- crypto1 create\r
144 if (isNested)\r
145 crypto1_destroy(pcs);\r
146\r
147 // Init cipher with key\r
148 crypto1_create(pcs, ui64Key);\r
149\r
150 if (isNested == AUTH_NESTED) {\r
151 // decrypt nt with help of new key \r
152 nt = crypto1_word(pcs, nt ^ uid, 1) ^ nt;\r
153 } else {\r
154 // Load (plain) uid^nt into the cipher\r
155 crypto1_word(pcs, nt ^ uid, 0);\r
156 }\r
157\r
158 // some statistic\r
159 if (!ntptr && (MF_DBGLEVEL >= 3))\r
160 Dbprintf("auth uid: %08x nt: %08x", uid, nt); \r
161 \r
162 // save Nt\r
163 if (ntptr)\r
164 *ntptr = nt;\r
165\r
166 // Generate (encrypted) nr+parity by loading it into the cipher (Nr)\r
167 par[0] = 0;\r
168 for (pos = 0; pos < 4; pos++) {\r
169 mf_nr_ar[pos] = crypto1_byte(pcs, nr[pos], 0) ^ nr[pos];\r
170 par[0] |= (((filter(pcs->odd) ^ oddparity8(nr[pos])) & 0x01) << (7-pos));\r
171 } \r
172 \r
173 // Skip 32 bits in pseudo random generator\r
174 nt = prng_successor(nt, 32);\r
175\r
176 // ar+parity\r
177 for (pos = 4; pos < 8; pos++) {\r
178 nt = prng_successor(nt,8);\r
179 mf_nr_ar[pos] = crypto1_byte(pcs,0x00,0) ^ (nt & 0xff);\r
180 par[0] |= (((filter(pcs->odd) ^ oddparity8(nt & 0xff)) & 0x01) << (7-pos));\r
181 } \r
182 \r
183 // Transmit reader nonce and reader answer\r
184 ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par, NULL);\r
185\r
186 // Receive 4 byte tag answer\r
187 len = ReaderReceive(receivedAnswer, receivedAnswerPar);\r
188 if (!len) {\r
189 if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout.");\r
190 return 2;\r
191 }\r
192\r
193 ntpp = prng_successor(nt, 32) ^ crypto1_word(pcs, 0,0);\r
194\r
195 if (ntpp != bytes_to_num(receivedAnswer, 4)) {\r
196 if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Error card response.");\r
197 return 3;\r
198 }\r
199 return 0;\r
200}\r
201\r
202int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) {\r
203\r
204 int len; \r
205 uint8_t bt[2] = {0x00, 0x00}; \r
206 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
207 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE] = {0x00};\r
208 \r
209 len = mifare_sendcmd_short(pcs, 1, ISO14443A_CMD_READBLOCK, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
210 if (len == 1) {\r
211 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); \r
212 return 1;\r
213 }\r
214 if (len != 18) {\r
215 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: card timeout. len: %x", len); \r
216 return 2;\r
217 }\r
218\r
219 memcpy(bt, receivedAnswer + 16, 2);\r
220 AppendCrc14443a(receivedAnswer, 16);\r
221 if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {\r
222 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd CRC response error."); \r
223 return 3;\r
224 }\r
225 \r
226 memcpy(blockData, receivedAnswer, 16);\r
227 return 0;\r
228}\r
229\r
230// mifare ultralight commands\r
231int mifare_ul_ev1_auth(uint8_t *keybytes, uint8_t *pack){\r
232\r
233 uint16_t len = 0;\r
234 uint8_t resp[4] = {0x00, 0x00, 0x00, 0x00};\r
235 uint8_t respPar[1] = {0x00};\r
236 uint8_t key[4] = {0x00, 0x00, 0x00, 0x00};\r
237 memcpy(key, keybytes, 4);\r
238\r
239 if (MF_DBGLEVEL >= MF_DBG_EXTENDED)\r
240 Dbprintf("EV1 Auth : %02x%02x%02x%02x", key[0], key[1], key[2], key[3]);\r
241 \r
242 len = mifare_sendcmd(0x1B, key, sizeof(key), resp, respPar, NULL);\r
243\r
244 if (len != 4) {\r
245 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x %u", resp[0], len);\r
246 return 0;\r
247 }\r
248\r
249 if (MF_DBGLEVEL >= MF_DBG_EXTENDED)\r
250 Dbprintf("Auth Resp: %02x%02x%02x%02x", resp[0],resp[1],resp[2],resp[3]);\r
251\r
252 memcpy(pack, resp, 4);\r
253 return 1;\r
254}\r
255\r
256int mifare_ultra_auth(uint8_t *keybytes){\r
257\r
258 /// 3des2k\r
259 uint8_t random_a[8] = {1,1,1,1,1,1,1,1};\r
260 uint8_t random_b[8] = {0x00};\r
261 uint8_t enc_random_b[8] = {0x00};\r
262 uint8_t rnd_ab[16] = {0x00};\r
263 uint8_t IV[8] = {0x00};\r
264 uint8_t key[16] = {0x00};\r
265 memcpy(key, keybytes, 16);\r
266\r
267 uint16_t len = 0;\r
268 uint8_t resp[19] = {0x00};\r
269 uint8_t respPar[3] = {0,0,0};\r
270\r
271 // REQUEST AUTHENTICATION\r
272 len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, resp, respPar ,NULL);\r
273 if (len != 11) {\r
274 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);\r
275 return 0;\r
276 }\r
277\r
278 // tag nonce.\r
279 memcpy(enc_random_b,resp+1,8);\r
280\r
281 // decrypt nonce.\r
282 tdes_2key_dec((void*)random_b, (void*)enc_random_b, sizeof(random_b), (const void*)key, IV );\r
283 rol(random_b,8);\r
284 memcpy(rnd_ab ,random_a,8);\r
285 memcpy(rnd_ab+8,random_b,8);\r
286\r
287 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
288 Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x",\r
289 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
290\r
291 Dbprintf(" B: %02x %02x %02x %02x %02x %02x %02x %02x",\r
292 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
293\r
294 Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",\r
295 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
296\r
297 Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",\r
298 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
299 }\r
300\r
301 // encrypt out, in, length, key, iv\r
302 tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);\r
303\r
304 len = mifare_sendcmd(0xAF, rnd_ab, sizeof(rnd_ab), resp, respPar, NULL);\r
305 if (len != 11) {\r
306 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);\r
307 return 0;\r
308 }\r
309\r
310 uint8_t enc_resp[8] = { 0,0,0,0,0,0,0,0 };\r
311 uint8_t resp_random_a[8] = { 0,0,0,0,0,0,0,0 };\r
312 memcpy(enc_resp, resp+1, 8);\r
313\r
314 // decrypt out, in, length, key, iv \r
315 tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b);\r
316 if ( memcmp(resp_random_a, random_a, 8) != 0 ) {\r
317 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("failed authentication");\r
318 return 0;\r
319 }\r
320\r
321 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
322 Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", \r
323 rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],\r
324 rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);\r
325\r
326 Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",\r
327 rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],\r
328 rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15]);\r
329\r
330 Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x",\r
331 random_a[0],random_a[1],random_a[2],random_a[3],\r
332 random_a[4],random_a[5],random_a[6],random_a[7]);\r
333\r
334 Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x",\r
335 resp_random_a[0],resp_random_a[1],resp_random_a[2],resp_random_a[3],\r
336 resp_random_a[4],resp_random_a[5],resp_random_a[6],resp_random_a[7]);\r
337 }\r
338 return 1;\r
339}\r
340\r
341int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData) {\r
342 uint16_t len = 0;\r
343 uint8_t bt[2] = {0x00, 0x00};\r
344 uint8_t receivedAnswer[MAX_FRAME_SIZE] = {0x00};\r
345 uint8_t receivedAnswerPar[MAX_PARITY_SIZE] = {0x00};\r
346 \r
347 len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
348 if (len == 1) {\r
349 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
350 return 1;\r
351 }\r
352 if (len != 18) {\r
353 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: card timeout. len: %x", len);\r
354 return 2;\r
355 }\r
356 \r
357 memcpy(bt, receivedAnswer + 16, 2);\r
358 AppendCrc14443a(receivedAnswer, 16);\r
359 if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {\r
360 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd CRC response error.");\r
361 return 3;\r
362 }\r
363 \r
364 memcpy(blockData, receivedAnswer, 14);\r
365 return 0;\r
366}\r
367\r
368int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) {\r
369 // variables\r
370 uint16_t len = 0; \r
371 uint32_t pos = 0;\r
372 uint8_t par[3] = {0x00, 0x00, 0x00}; // enough for 18 Bytes to send\r
373 byte_t res = 0;\r
374 \r
375 uint8_t d_block[18], d_block_enc[18];\r
376 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
377 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE] = {0x00};\r
378 \r
379 // command MIFARE_CLASSIC_WRITEBLOCK\r
380 len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
381\r
382 if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK\r
383 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); \r
384 return 1;\r
385 }\r
386 \r
387 memcpy(d_block, blockData, 16);\r
388 AppendCrc14443a(d_block, 16);\r
389 \r
390 // crypto\r
391 for (pos = 0; pos < 18; pos++) {\r
392 d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ d_block[pos];\r
393 par[pos>>3] |= (((filter(pcs->odd) ^ oddparity8(d_block[pos])) & 0x01) << (7 - (pos&0x0007)));\r
394 } \r
395\r
396 ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par, NULL);\r
397\r
398 // Receive the response\r
399 len = ReaderReceive(receivedAnswer, receivedAnswerPar); \r
400\r
401 res = 0;\r
402 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], 0)) << 0;\r
403 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], 1)) << 1;\r
404 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], 2)) << 2;\r
405 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], 3)) << 3;\r
406\r
407 if ((len != 1) || (res != 0x0A)) {\r
408 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd send data2 Error: %02x", res); \r
409 return 2;\r
410 }\r
411 return 0;\r
412}\r
413\r
414/* // command not needed, but left for future testing\r
415int mifare_ultra_writeblock_compat(uint8_t blockNo, uint8_t *blockData) {\r
416 uint16_t len;\r
417 uint8_t par[3] = {0}; // enough for 18 parity bits\r
418 uint8_t d_block[18] = {0x00};\r
419 uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
420 uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
421\r
422 len = mifare_sendcmd_short(NULL, true, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
423\r
424 if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK\r
425 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
426 Dbprintf("Cmd Addr Error: %02x", receivedAnswer[0]);\r
427 return 1;\r
428 }\r
429\r
430 memcpy(d_block, blockData, 16);\r
431 AppendCrc14443a(d_block, 16);\r
432\r
433 ReaderTransmitPar(d_block, sizeof(d_block), par, NULL);\r
434\r
435 len = ReaderReceive(receivedAnswer, receivedAnswerPar);\r
436\r
437 if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK\r
438 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
439 Dbprintf("Cmd Data Error: %02x %d", receivedAnswer[0],len);\r
440 return 2;\r
441 }\r
442 return 0;\r
443}\r
444*/\r
445\r
446int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData) {\r
447 uint16_t len = 0;\r
448 uint8_t block[5] = {blockNo, 0x00, 0x00, 0x00, 0x00 };\r
449 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};\r
450 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE] = {0x00};\r
451\r
452 // command MIFARE_CLASSIC_WRITEBLOCK\r
453 memcpy(block+1, blockData, 4);\r
454\r
455 len = mifare_sendcmd( MIFARE_ULC_WRITE, block, sizeof(block), receivedAnswer, receivedAnswerPar, NULL);\r
456\r
457 if (receivedAnswer[0] != 0x0A) { // 0x0a - ACK\r
458 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
459 Dbprintf("Cmd Send Error: %02x %d", receivedAnswer[0],len);\r
460 return 1;\r
461 }\r
462 return 0;\r
463}\r
464int mifare_classic_halt_ex(struct Crypto1State *pcs) {\r
465 uint8_t receivedAnswer[4] = {0x00, 0x00, 0x00, 0x00};\r
466 uint16_t len = mifare_sendcmd_short(pcs, (pcs == NULL) ? CRYPT_NONE : CRYPT_ALL, 0x50, 0x00, receivedAnswer, NULL, NULL);\r
467 if (len != 0) {\r
468 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("halt warning. response len: %x", len);\r
469 return 1;\r
470 }\r
471 return 0;\r
472}\r
473int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) {\r
474 return mifare_classic_halt_ex(pcs);\r
475}\r
476\r
477int mifare_ultra_halt() {\r
478 uint16_t len = 0;\r
479 uint8_t receivedAnswer[4] = {0x00, 0x00, 0x00, 0x00};\r
480 len = mifare_sendcmd_short(NULL, CRYPT_NONE, 0x50, 0x00, receivedAnswer, NULL, NULL);\r
481 if (len != 0) {\r
482 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("halt error. response len: %x", len);\r
483 return 1;\r
484 }\r
485 return 0;\r
486}\r
487\r
488\r
489// Mifare Memory Structure: up to 32 Sectors with 4 blocks each (1k and 2k cards),\r
490// plus evtl. 8 sectors with 16 blocks each (4k cards)\r
491uint8_t NumBlocksPerSector(uint8_t sectorNo) {\r
492 return (sectorNo < 32) ? 4 : 16;\r
493}\r
494\r
495uint8_t FirstBlockOfSector(uint8_t sectorNo) {\r
496 if (sectorNo < 32)\r
497 return sectorNo * 4;\r
498 else\r
499 return 32*4 + (sectorNo - 32) * 16;\r
500 \r
501}\r
502\r
503// work with emulator memory\r
504void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {\r
505 emlSetMem_xt(data, blockNum, blocksCount, 16);\r
506}\r
507\r
508void emlSetMem_xt(uint8_t *data, int blockNum, int blocksCount, int blockBtWidth) {\r
509 uint8_t* emCARD = BigBuf_get_EM_addr();\r
510 memcpy(emCARD + blockNum * blockBtWidth, data, blocksCount * blockBtWidth);\r
511}\r
512\r
513void emlGetMem(uint8_t *data, int blockNum, int blocksCount) {\r
514 uint8_t* emCARD = BigBuf_get_EM_addr();\r
515 memcpy(data, emCARD + blockNum * 16, blocksCount * 16);\r
516}\r
517\r
518void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) {\r
519 uint8_t* emCARD = BigBuf_get_EM_addr();\r
520 memcpy(data, emCARD + bytePtr, byteCount);\r
521}\r
522\r
523int emlCheckValBl(int blockNum) {\r
524 uint8_t* emCARD = BigBuf_get_EM_addr();\r
525 uint8_t* data = emCARD + blockNum * 16;\r
526\r
527 if ((data[0] != (data[4] ^ 0xff)) || (data[0] != data[8]) ||\r
528 (data[1] != (data[5] ^ 0xff)) || (data[1] != data[9]) ||\r
529 (data[2] != (data[6] ^ 0xff)) || (data[2] != data[10]) ||\r
530 (data[3] != (data[7] ^ 0xff)) || (data[3] != data[11]) ||\r
531 (data[12] != (data[13] ^ 0xff)) || (data[12] != data[14]) ||\r
532 (data[12] != (data[15] ^ 0xff))\r
533 ) \r
534 return 1;\r
535 return 0;\r
536}\r
537\r
538int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) {\r
539 uint8_t* emCARD = BigBuf_get_EM_addr();\r
540 uint8_t* data = emCARD + blockNum * 16;\r
541 \r
542 if (emlCheckValBl(blockNum))\r
543 return 1;\r
544 \r
545 memcpy(blReg, data, 4);\r
546 *blBlock = data[12];\r
547 return 0;\r
548}\r
549\r
550int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {\r
551 uint8_t* emCARD = BigBuf_get_EM_addr();\r
552 uint8_t* data = emCARD + blockNum * 16;\r
553 \r
554 memcpy(data + 0, &blReg, 4);\r
555 memcpy(data + 8, &blReg, 4);\r
556 blReg = blReg ^ 0xffffffff;\r
557 memcpy(data + 4, &blReg, 4);\r
558 \r
559 data[12] = blBlock;\r
560 data[13] = blBlock ^ 0xff;\r
561 data[14] = blBlock;\r
562 data[15] = blBlock ^ 0xff;\r
563 \r
564 return 0;\r
565}\r
566\r
567uint64_t emlGetKey(int sectorNum, int keyType) {\r
568 uint8_t key[6] = {0x00};\r
569 uint8_t* emCARD = BigBuf_get_EM_addr();\r
570 \r
571 memcpy(key, emCARD + 16 * (FirstBlockOfSector(sectorNum) + NumBlocksPerSector(sectorNum) - 1) + keyType * 10, 6);\r
572 return bytes_to_num(key, 6);\r
573}\r
574\r
575void emlClearMem(void) {\r
576 int b;\r
577 \r
578 const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};\r
579 const uint8_t uid[] = {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};\r
580 uint8_t* emCARD = BigBuf_get_EM_addr();\r
581 \r
582 memset(emCARD, 0, CARD_MEMORY_SIZE);\r
583 \r
584 // fill sectors trailer data\r
585 for(b = 3; b < 256; b<127?(b+=4):(b+=16))\r
586 emlSetMem((uint8_t *)trailer, b , 1);\r
587\r
588 // uid\r
589 emlSetMem((uint8_t *)uid, 0, 1);\r
590 return;\r
591}\r
592\r
593\r
594// Mifare desfire commands\r
595int 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
596{\r
597 uint8_t dcmd[5] = {cmd, data[0], data[1], 0x00, 0x00};\r
598 AppendCrc14443a(dcmd, 3);\r
599 \r
600 ReaderTransmit(dcmd, sizeof(dcmd), NULL);\r
601 int len = ReaderReceive(answer, answer_parity);\r
602 if(!len) {\r
603 if (MF_DBGLEVEL >= MF_DBG_ERROR) \r
604 Dbprintf("Authentication failed. Card timeout.");\r
605 return 1;\r
606 }\r
607 return len;\r
608}\r
609\r
610int 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
611{\r
612 uint8_t dcmd[20] = {0x00};\r
613 dcmd[0] = cmd;\r
614 memcpy(dcmd+1,data,17);\r
615 AppendCrc14443a(dcmd, 18);\r
616\r
617 ReaderTransmit(dcmd, sizeof(dcmd), NULL);\r
618 int len = ReaderReceive(answer, answer_parity);\r
619 if(!len){\r
620 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
621 Dbprintf("Authentication failed. Card timeout.");\r
622 return 1;\r
623 }\r
624 return len;\r
625}\r
626\r
627int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData){\r
628\r
629 int len;\r
630 // load key, keynumber\r
631 uint8_t data[2]={0x0a, 0x00};\r
632 uint8_t receivedAnswer[MAX_FRAME_SIZE] = {0x00};\r
633 uint8_t receivedAnswerPar[MAX_PARITY_SIZE] = {0x00};\r
634 \r
635 len = mifare_sendcmd_special(NULL, 1, 0x02, data, receivedAnswer,receivedAnswerPar,NULL);\r
636 if (len == 1) {\r
637 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
638 Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
639 return 1;\r
640 }\r
641 \r
642 if (len == 12) {\r
643 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
644 Dbprintf("Auth1 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
645 receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
646 receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
647 receivedAnswer[10],receivedAnswer[11]);\r
648 }\r
649 memcpy(blockData, receivedAnswer, 12);\r
650 return 0;\r
651 }\r
652 return 1;\r
653}\r
654\r
655int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){\r
656\r
657 int len;\r
658 uint8_t data[17] = {0x00};\r
659 data[0] = 0xAF;\r
660 memcpy(data+1,key,16);\r
661 \r
662 uint8_t receivedAnswer[MAX_FRAME_SIZE] = {0x00};\r
663 uint8_t receivedAnswerPar[MAX_PARITY_SIZE] = {0x00};\r
664 \r
665 len = mifare_sendcmd_special2(NULL, 1, 0x03, data, receivedAnswer, receivedAnswerPar ,NULL);\r
666 \r
667 if ((receivedAnswer[0] == 0x03) && (receivedAnswer[1] == 0xae)) {\r
668 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
669 Dbprintf("Auth Error: %02x %02x", receivedAnswer[0], receivedAnswer[1]);\r
670 return 1;\r
671 }\r
672 \r
673 if (len == 12){\r
674 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
675 Dbprintf("Auth2 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
676 receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
677 receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
678 receivedAnswer[10],receivedAnswer[11]);\r
679 }\r
680 memcpy(blockData, receivedAnswer, 12);\r
681 return 0;\r
682 }\r
683 return 1;\r
684}\r
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