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