]> git.zerfleddert.de Git - proxmark3-svn/blame - armsrc/mifareutil.c
projects / proxmark3-svn / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
clean up mfu device side code
[proxmark3-svn] / armsrc / mifareutil.c
CommitLineData
20f9a2a1 1//-----------------------------------------------------------------------------\r
b62a5a84 2// Merlok, May 2011, 2012\r
8f51ddb0 3// Many authors, whom made it possible\r
20f9a2a1
M		 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
8f51ddb0 9// Work with mifare cards.\r
20f9a2a1
M		 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
8258f409 21#include "des.h"\r
20f9a2a1 22\r
f397b5cc
M		 23int MF_DBGLEVEL = MF_DBG_ALL;\r
24\r
8f51ddb0
M		 25// crypto1 helpers\r
26void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){\r
27 uint8_t bt = 0;\r
28 int i;\r
29 \r
30 if (len != 1) {\r
31 for (i = 0; i < len; i++)\r
32 data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];\r
33 } else {\r
34 bt = 0;\r
35 for (i = 0; i < 4; i++)\r
36 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], i)) << i;\r
37 \r
38 data[0] = bt;\r
39 }\r
40 return;\r
41}\r
42\r
6a1f2d82 43void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par) {\r
8f51ddb0
M		 44 uint8_t bt = 0;\r
45 int i;\r
6a1f2d82 46 par[0] = 0;\r
3fe4ff4f 47 \r
8f51ddb0
M		 48 for (i = 0; i < len; i++) {\r
49 bt = data[i];\r
50 data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];\r
3fe4ff4f 51 if((i&0x0007) == 0) \r
52 par[i>>3] = 0;\r
6a1f2d82 53 par[i>>3] |= (((filter(pcs->odd) ^ oddparity(bt)) & 0x01)<<(7-(i&0x0007)));\r
8f51ddb0
M		 54 } \r
55 return;\r
56}\r
57\r
58uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) {\r
59 uint8_t bt = 0;\r
60 int i;\r
61\r
62 for (i = 0; i < 4; i++)\r
63 bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, i)) << i;\r
64 \r
65 return bt;\r
20f9a2a1
M		 66}\r
67\r
4973f23d 68// send 2 byte commands\r
6a1f2d82 69int 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
f89c7050 70{\r
f168b263 71 return mifare_sendcmd_shortex(pcs, crypted, cmd, data, answer, answer_parity, timing);\r
72}\r
73\r
4973f23d 74// send X byte basic commands\r
75int mifare_sendcmd(uint8_t cmd, uint8_t* data, uint8_t data_size, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)\r
f168b263 76{\r
4973f23d 77 uint8_t dcmd[data_size+3];\r
78 dcmd[0] = cmd;\r
79 memcpy(dcmd+1,data,data_size);\r
80 AppendCrc14443a(dcmd, data_size+1);\r
81 ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
f168b263 82 int len = ReaderReceive(answer, answer_parity);\r
83 if(!len) {\r
4973f23d 84 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("%02X Cmd failed. Card timeout.", cmd);\r
85 len = ReaderReceive(answer,answer_parity);\r
86 //return 0;\r
87 }\r
a631936e 88 return len;\r
89}\r
90\r
4973f23d 91/*\r
a631936e 92int mifare_sendcmd_short_mfucauth(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t *data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing)\r
93{\r
4973f23d 94 uint8_t dcmd[19];\r
a631936e 95 int len; \r
4973f23d 96 dcmd[0] = cmd;\r
97 memcpy(dcmd+1,data,16);\r
a631936e 98 AppendCrc14443a(dcmd, 17);\r
99 \r
100 ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
101 len = ReaderReceive(answer, answer_parity);\r
102 if(!len) {\r
4973f23d 103 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed. Card timeout.");\r
104 len = ReaderReceive(answer,answer_parity);\r
105 }\r
106 if(len==1) {\r
a631936e 107 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("NAK - Authentication failed.");\r
108 return 1;\r
4973f23d 109 }\r
f168b263 110 return len;\r
111}\r
112\r
8258f409 113int mifare_sendcmd_short_mfuev1auth(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t *data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing)\r
114{\r
4973f23d 115 uint8_t dcmd[7];\r
8258f409 116 int len; \r
4973f23d 117 dcmd[0] = cmd;\r
118 memcpy(dcmd+1,data,4);\r
8258f409 119 AppendCrc14443a(dcmd, 5);\r
4973f23d 120\r
8258f409 121 ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
122 len = ReaderReceive(answer, answer_parity);\r
123 if(!len) {\r
4973f23d 124 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed. Card timeout.");\r
125 len = ReaderReceive(answer,answer_parity);\r
126 }\r
127 if(len==1) {\r
8258f409 128 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("NAK - Authentication failed.");\r
129 return 1;\r
4973f23d 130 }\r
8258f409 131 return len;\r
132}\r
4973f23d 133*/\r
8258f409 134\r
4973f23d 135// send 2 byte commands\r
f168b263 136int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing)\r
137{\r
138 uint8_t dcmd[4], ecmd[4];\r
6a1f2d82 139 uint16_t pos, res;\r
140 uint8_t par[1]; // 1 Byte parity is enough here\r
20f9a2a1
M		 141 dcmd[0] = cmd;\r
142 dcmd[1] = data;\r
143 AppendCrc14443a(dcmd, 2);\r
144 \r
145 memcpy(ecmd, dcmd, sizeof(dcmd));\r
146 \r
147 if (crypted) {\r
6a1f2d82 148 par[0] = 0;\r
20f9a2a1
M		 149 for (pos = 0; pos < 4; pos++)\r
150 {\r
151 ecmd[pos] = crypto1_byte(pcs, 0x00, 0) ^ dcmd[pos];\r
6a1f2d82 152 par[0] |= (((filter(pcs->odd) ^ oddparity(dcmd[pos])) & 0x01) << (7-pos));\r
20f9a2a1
M		 153 } \r
154\r
9492e0b0 155 ReaderTransmitPar(ecmd, sizeof(ecmd), par, timing);\r
20f9a2a1
M		 156\r
157 } else {\r
9492e0b0 158 ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
20f9a2a1
M		 159 }\r
160\r
6a1f2d82 161 int len = ReaderReceive(answer, par);\r
162 \r
163 if (answer_parity) *answer_parity = par[0];\r
f89c7050 164 \r
4abe4f58 165 if (crypted == CRYPT_ALL) {\r
20f9a2a1
M		 166 if (len == 1) {\r
167 res = 0;\r
168 for (pos = 0; pos < 4; pos++)\r
169 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(answer[0], pos)) << pos;\r
170 \r
171 answer[0] = res;\r
172 \r
173 } else {\r
174 for (pos = 0; pos < len; pos++)\r
175 {\r
176 answer[pos] = crypto1_byte(pcs, 0x00, 0) ^ answer[pos];\r
177 }\r
178 }\r
179 }\r
180 \r
181 return len;\r
182}\r
183\r
787b5bd8 184// mifare classic commands\r
6a1f2d82 185int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested) \r
f89c7050 186{\r
9492e0b0 187 return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL, NULL);\r
f89c7050
M		 188}\r
189\r
6a1f2d82 190int 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
20f9a2a1
M		 191{\r
192 // variables\r
4abe4f58 193 int len; \r
20f9a2a1
M		 194 uint32_t pos;\r
195 uint8_t tmp4[4];\r
3fe4ff4f 196 uint8_t par[1] = {0x00};\r
6a1f2d82 197 byte_t nr[4];\r
20f9a2a1
M		 198 uint32_t nt, ntpp; // Supplied tag nonce\r
199 \r
200 uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };\r
f71f4deb 201 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
202 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
6a1f2d82 203 \r
4abe4f58 204 // Transmit MIFARE_CLASSIC_AUTH\r
6a1f2d82 205 len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer, receivedAnswerPar, timing);\r
206 if (MF_DBGLEVEL >= 4) Dbprintf("rand tag nonce len: %x", len); \r
4abe4f58 207 if (len != 4) return 1;\r
20f9a2a1 208 \r
6a1f2d82 209 // "random" reader nonce:\r
210 nr[0] = 0x55;\r
211 nr[1] = 0x41;\r
212 nr[2] = 0x49;\r
213 nr[3] = 0x92; \r
20f9a2a1
M		 214 \r
215 // Save the tag nonce (nt)\r
216 nt = bytes_to_num(receivedAnswer, 4);\r
20f9a2a1
M		 217\r
218 // ----------------------------- crypto1 create\r
4abe4f58
M		 219 if (isNested)\r
220 crypto1_destroy(pcs);\r
221\r
222 // Init cipher with key\r
20f9a2a1
M		 223 crypto1_create(pcs, ui64Key);\r
224\r
4abe4f58
M		 225 if (isNested == AUTH_NESTED) {\r
226 // decrypt nt with help of new key \r
227 nt = crypto1_word(pcs, nt ^ uid, 1) ^ nt;\r
228 } else {\r
229 // Load (plain) uid^nt into the cipher\r
230 crypto1_word(pcs, nt ^ uid, 0);\r
231 }\r
232\r
233 // some statistic\r
f397b5cc 234 if (!ntptr && (MF_DBGLEVEL >= 3))\r
f89c7050
M		 235 Dbprintf("auth uid: %08x nt: %08x", uid, nt); \r
236 \r
237 // save Nt\r
238 if (ntptr)\r
239 *ntptr = nt;\r
20f9a2a1 240\r
4abe4f58 241 // Generate (encrypted) nr+parity by loading it into the cipher (Nr)\r
6a1f2d82 242 par[0] = 0;\r
4abe4f58
M		 243 for (pos = 0; pos < 4; pos++)\r
244 {\r
6a1f2d82 245 mf_nr_ar[pos] = crypto1_byte(pcs, nr[pos], 0) ^ nr[pos];\r
246 par[0] |= (((filter(pcs->odd) ^ oddparity(nr[pos])) & 0x01) << (7-pos));\r
4abe4f58 247 } \r
20f9a2a1 248 \r
4abe4f58
M		 249 // Skip 32 bits in pseudo random generator\r
250 nt = prng_successor(nt,32);\r
20f9a2a1
M		 251\r
252 // ar+parity\r
4abe4f58
M		 253 for (pos = 4; pos < 8; pos++)\r
254 {\r
20f9a2a1 255 nt = prng_successor(nt,8);\r
4abe4f58 256 mf_nr_ar[pos] = crypto1_byte(pcs,0x00,0) ^ (nt & 0xff);\r
6a1f2d82 257 par[0] |= (((filter(pcs->odd) ^ oddparity(nt & 0xff)) & 0x01) << (7-pos));\r
4abe4f58 258 } \r
20f9a2a1 259 \r
4abe4f58 260 // Transmit reader nonce and reader answer\r
9492e0b0 261 ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par, NULL);\r
20f9a2a1 262\r
6a1f2d82 263 // Receive 4 byte tag answer\r
264 len = ReaderReceive(receivedAnswer, receivedAnswerPar);\r
4abe4f58
M		 265 if (!len)\r
266 {\r
f397b5cc 267 if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout.");\r
20f9a2a1 268 return 2;\r
4abe4f58 269 }\r
20f9a2a1 270 \r
4abe4f58 271 memcpy(tmp4, receivedAnswer, 4);\r
20f9a2a1
M		 272 ntpp = prng_successor(nt, 32) ^ crypto1_word(pcs, 0,0);\r
273 \r
274 if (ntpp != bytes_to_num(tmp4, 4)) {\r
f397b5cc 275 if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Error card response.");\r
20f9a2a1
M		 276 return 3;\r
277 }\r
278\r
279 return 0;\r
280}\r
281\r
282int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) \r
283{\r
284 // variables\r
4abe4f58 285 int len; \r
20f9a2a1
M		 286 uint8_t bt[2];\r
287 \r
f71f4deb 288 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
289 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
20f9a2a1 290 \r
4abe4f58 291 // command MIFARE_CLASSIC_READBLOCK\r
6a1f2d82 292 len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
20f9a2a1 293 if (len == 1) {\r
f397b5cc 294 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); \r
20f9a2a1
M		 295 return 1;\r
296 }\r
297 if (len != 18) {\r
f397b5cc 298 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: card timeout. len: %x", len); \r
20f9a2a1
M		 299 return 2;\r
300 }\r
301\r
302 memcpy(bt, receivedAnswer + 16, 2);\r
4abe4f58 303 AppendCrc14443a(receivedAnswer, 16);\r
20f9a2a1 304 if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {\r
f397b5cc 305 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd CRC response error."); \r
20f9a2a1
M		 306 return 3;\r
307 }\r
308 \r
309 memcpy(blockData, receivedAnswer, 16);\r
f168b263 310 return 0;\r
311}\r
312\r
a631936e 313// mifare ultralight commands\r
8258f409 314int mifare_ul_ev1_auth(uint8_t *keybytes, uint8_t *pack){\r
cceabb79 315\r
316 uint16_t len;\r
8258f409 317 uint8_t resp[4];\r
318 uint8_t respPar[1];\r
319 uint8_t key[4] = {0x00};\r
320 memcpy(key, keybytes, 4);\r
321\r
322 Dbprintf("EV1 Auth : %02x%02x%02x%02x", key[0], key[1], key[2], key[3]);\r
4973f23d 323 len = mifare_sendcmd(0x1B, key, sizeof(key), resp, respPar, NULL);\r
324 //len = mifare_sendcmd_short_mfuev1auth(NULL, 0, 0x1B, key, resp, respPar, NULL);\r
cceabb79 325 if (len != 4) {\r
8258f409 326 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x %u", resp[0], len);\r
9d87eb66 327 return 0;\r
cceabb79 328 }\r
8258f409 329\r
330 if (MF_DBGLEVEL >= MF_DBG_EXTENDED)\r
331 Dbprintf("Auth Resp: %02x%02x%02x%02x", resp[0],resp[1],resp[2],resp[3]);\r
332\r
333 memcpy(pack, resp, 4);\r
9d87eb66 334 return 1;\r
cceabb79 335}\r
336\r
8258f409 337int mifare_ultra_auth(uint8_t *keybytes){\r
338\r
339 /// 3des2k\r
340\r
341 uint8_t random_a[8] = {1,1,1,1,1,1,1,1};\r
342 uint8_t random_b[8] = {0x00};\r
343 uint8_t enc_random_b[8] = {0x00};\r
344 uint8_t rnd_ab[16] = {0x00};\r
345 uint8_t IV[8] = {0x00};\r
346 uint8_t key[16] = {0x00};\r
347 memcpy(key, keybytes, 16);\r
a631936e 348\r
349 uint16_t len;\r
8258f409 350 uint8_t resp[19] = {0x00};\r
351 uint8_t respPar[3] = {0,0,0};\r
352\r
353 // REQUEST AUTHENTICATION\r
354 len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, resp, respPar ,NULL);\r
f168b263 355 if (len != 11) {\r
8258f409 356 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);\r
9d87eb66 357 return 0;\r
a631936e 358 }\r
a631936e 359\r
8258f409 360 // tag nonce.\r
361 memcpy(enc_random_b,resp+1,8);\r
362\r
363 // decrypt nonce.\r
364 tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );\r
365 rol(random_b,8);\r
366 memcpy(rnd_ab ,random_a,8);\r
367 memcpy(rnd_ab+8,random_b,8);\r
368\r
a631936e 369 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
8258f409 370 Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x",\r
371 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
a631936e 372\r
8258f409 373 Dbprintf(" B: %02x %02x %02x %02x %02x %02x %02x %02x",\r
374 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
a631936e 375\r
8258f409 376 Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",\r
377 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
378\r
379 Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",\r
380 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
381 }\r
382\r
383 // encrypt out, in, length, key, iv\r
384 tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);\r
4973f23d 385 //len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, resp, respPar, NULL);\r
386 len = mifare_sendcmd(0xAF, rnd_ab, sizeof(rnd_ab), resp, respPar, NULL);\r
f168b263 387 if (len != 11) {\r
8258f409 388 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);\r
9d87eb66 389 return 0;\r
a631936e 390 }\r
8258f409 391\r
392 uint8_t enc_resp[8] = { 0,0,0,0,0,0,0,0 };\r
393 uint8_t resp_random_a[8] = { 0,0,0,0,0,0,0,0 };\r
394 memcpy(enc_resp, resp+1, 8);\r
395\r
396 // decrypt out, in, length, key, iv \r
397 tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b);\r
398 if ( memcmp(resp_random_a, random_a, 8) != 0 ) {\r
399 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("failed authentication");\r
9d87eb66 400 return 0;\r
8258f409 401 }\r
402\r
a631936e 403 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
8258f409 404 Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", \r
405 rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],\r
406 rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);\r
407\r
408 Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",\r
409 rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],\r
410 rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15]);\r
411\r
412 Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x",\r
413 random_a[0],random_a[1],random_a[2],random_a[3],\r
414 random_a[4],random_a[5],random_a[6],random_a[7]);\r
415\r
416 Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x",\r
417 resp_random_a[0],resp_random_a[1],resp_random_a[2],resp_random_a[3],\r
418 resp_random_a[4],resp_random_a[5],resp_random_a[6],resp_random_a[7]);\r
a631936e 419 }\r
9d87eb66 420 return 1;\r
a631936e 421}\r
422\r
f168b263 423int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData)\r
424{\r
425 uint16_t len;\r
426 uint8_t bt[2];\r
427 uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
428 uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
3fe4ff4f 429 \r
4973f23d 430\r
f168b263 431 len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
432 if (len == 1) {\r
433 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
434 return 1;\r
435 }\r
436 if (len != 18) {\r
437 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: card timeout. len: %x", len);\r
438 return 2;\r
439 }\r
440 \r
441 memcpy(bt, receivedAnswer + 16, 2);\r
442 AppendCrc14443a(receivedAnswer, 16);\r
443 if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {\r
444 if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd CRC response error.");\r
445 return 3;\r
446 }\r
447 \r
448 memcpy(blockData, receivedAnswer, 14);\r
449 return 0;\r
450}\r
451\r
f168b263 452int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) \r
453{\r
454 // variables\r
3fe4ff4f 455 uint16_t len, i; \r
20f9a2a1 456 uint32_t pos;\r
6a1f2d82 457 uint8_t par[3] = {0}; // enough for 18 Bytes to send\r
4abe4f58 458 byte_t res;\r
20f9a2a1
M		 459 \r
460 uint8_t d_block[18], d_block_enc[18];\r
f71f4deb 461 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
462 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
20f9a2a1 463 \r
4abe4f58 464 // command MIFARE_CLASSIC_WRITEBLOCK\r
6a1f2d82 465 len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
20f9a2a1
M		 466\r
467 if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK\r
f397b5cc 468 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]); \r
20f9a2a1
M		 469 return 1;\r
470 }\r
471 \r
472 memcpy(d_block, blockData, 16);\r
473 AppendCrc14443a(d_block, 16);\r
474 \r
475 // crypto\r
4abe4f58
M		 476 for (pos = 0; pos < 18; pos++)\r
477 {\r
478 d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ d_block[pos];\r
6a1f2d82 479 par[pos>>3] |= (((filter(pcs->odd) ^ oddparity(d_block[pos])) & 0x01) << (7 - (pos&0x0007)));\r
4abe4f58 480 } \r
20f9a2a1 481\r
9492e0b0 482 ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par, NULL);\r
20f9a2a1 483\r
4abe4f58 484 // Receive the response\r
6a1f2d82 485 len = ReaderReceive(receivedAnswer, receivedAnswerPar); \r
20f9a2a1
M		 486\r
487 res = 0;\r
488 for (i = 0; i < 4; i++)\r
489 res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], i)) << i;\r
490\r
491 if ((len != 1) || (res != 0x0A)) {\r
f397b5cc 492 if (MF_DBGLEVEL >= 1) Dbprintf("Cmd send data2 Error: %02x", res); \r
20f9a2a1
M		 493 return 2;\r
494 }\r
495 \r
f168b263 496 return 0;\r
497}\r
498\r
4973f23d 499/* // command not needed, but left for future testing\r
500int mifare_ultra_writeblock_compat(uint8_t blockNo, uint8_t *blockData) \r
f168b263 501{\r
502 uint16_t len;\r
503 uint8_t par[3] = {0}; // enough for 18 parity bits\r
504 uint8_t d_block[18] = {0x00};\r
505 uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
506 uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
507\r
f168b263 508 len = mifare_sendcmd_short(NULL, true, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
509\r
510 if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK\r
787b5bd8 511 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
f168b263 512 Dbprintf("Cmd Addr Error: %02x", receivedAnswer[0]);\r
513 return 1;\r
514 }\r
515\r
516 memcpy(d_block, blockData, 16);\r
517 AppendCrc14443a(d_block, 16);\r
518\r
519 ReaderTransmitPar(d_block, sizeof(d_block), par, NULL);\r
520\r
521 len = ReaderReceive(receivedAnswer, receivedAnswerPar);\r
522\r
523 if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK\r
787b5bd8 524 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
f168b263 525 Dbprintf("Cmd Data Error: %02x %d", receivedAnswer[0],len);\r
526 return 2;\r
527 }\r
528 return 0;\r
529}\r
4973f23d 530*/\r
f168b263 531\r
4973f23d 532int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData)\r
f168b263 533{\r
534 uint16_t len;\r
4973f23d 535 uint8_t d_block[5] = {0x00};\r
f71f4deb 536 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
537 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
f168b263 538\r
539 // command MIFARE_CLASSIC_WRITEBLOCK\r
540 d_block[0]= blockNo;\r
541 memcpy(d_block+1,blockData,4);\r
4973f23d 542 //AppendCrc14443a(d_block, 6);\r
f168b263 543\r
4973f23d 544 len = mifare_sendcmd(0xA2, d_block, sizeof(d_block), receivedAnswer, receivedAnswerPar, NULL);\r
f168b263 545\r
546 if (receivedAnswer[0] != 0x0A) { // 0x0a - ACK\r
787b5bd8 547 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
f168b263 548 Dbprintf("Cmd Send Error: %02x %d", receivedAnswer[0],len);\r
549 return 1;\r
550 }\r
551 return 0;\r
552}\r
553\r
554int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) \r
555{\r
6a1f2d82 556 uint16_t len; \r
f71f4deb 557 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
558 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
20f9a2a1 559\r
6a1f2d82 560 len = mifare_sendcmd_short(pcs, pcs == NULL ? false:true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);\r
4abe4f58 561 if (len != 0) {\r
787b5bd8 562 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
563 Dbprintf("halt error. response len: %x", len); \r
20f9a2a1
M		 564 return 1;\r
565 }\r
566\r
f168b263 567 return 0;\r
568}\r
569\r
570int mifare_ultra_halt()\r
571{\r
572 uint16_t len;\r
f71f4deb 573 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
574 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
f168b263 575 \r
576 len = mifare_sendcmd_short(NULL, true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);\r
577 if (len != 0) {\r
787b5bd8 578 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
f168b263 579 Dbprintf("halt error. response len: %x", len);\r
580 return 1;\r
581 }\r
582 return 0;\r
583}\r
584\r
baeaf579 585\r
586// Mifare Memory Structure: up to 32 Sectors with 4 blocks each (1k and 2k cards),\r
587// plus evtl. 8 sectors with 16 blocks each (4k cards)\r
588uint8_t NumBlocksPerSector(uint8_t sectorNo) \r
589{\r
590 if (sectorNo < 32) \r
591 return 4;\r
592 else\r
593 return 16;\r
594}\r
595\r
596uint8_t FirstBlockOfSector(uint8_t sectorNo) \r
597{\r
598 if (sectorNo < 32)\r
599 return sectorNo * 4;\r
600 else\r
601 return 32*4 + (sectorNo - 32) * 16;\r
602 \r
603}\r
604\r
605\r
f168b263 606// work with emulator memory\r
607void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {\r
608 uint8_t* emCARD = BigBuf_get_EM_addr();\r
8f51ddb0
M		 609 memcpy(emCARD + blockNum * 16, data, blocksCount * 16);\r
610}\r
611\r
612void emlGetMem(uint8_t *data, int blockNum, int blocksCount) {\r
f71f4deb 613 uint8_t* emCARD = BigBuf_get_EM_addr();\r
8f51ddb0
M		 614 memcpy(data, emCARD + blockNum * 16, blocksCount * 16);\r
615}\r
616\r
617void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) {\r
f71f4deb 618 uint8_t* emCARD = BigBuf_get_EM_addr();\r
8f51ddb0
M		 619 memcpy(data, emCARD + bytePtr, byteCount);\r
620}\r
621\r
0014cb46 622int emlCheckValBl(int blockNum) {\r
f71f4deb 623 uint8_t* emCARD = BigBuf_get_EM_addr();\r
0014cb46
M		 624 uint8_t* data = emCARD + blockNum * 16;\r
625\r
626 if ((data[0] != (data[4] ^ 0xff)) || (data[0] != data[8]) ||\r
627 (data[1] != (data[5] ^ 0xff)) || (data[1] != data[9]) ||\r
628 (data[2] != (data[6] ^ 0xff)) || (data[2] != data[10]) ||\r
629 (data[3] != (data[7] ^ 0xff)) || (data[3] != data[11]) ||\r
630 (data[12] != (data[13] ^ 0xff)) || (data[12] != data[14]) ||\r
631 (data[12] != (data[15] ^ 0xff))\r
632 ) \r
633 return 1;\r
634 return 0;\r
635}\r
636\r
637int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) {\r
f71f4deb 638 uint8_t* emCARD = BigBuf_get_EM_addr();\r
0014cb46
M		 639 uint8_t* data = emCARD + blockNum * 16;\r
640 \r
641 if (emlCheckValBl(blockNum)) {\r
642 return 1;\r
643 }\r
644 \r
645 memcpy(blReg, data, 4);\r
646 *blBlock = data[12];\r
0014cb46
M		 647 return 0;\r
648}\r
649\r
650int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {\r
f71f4deb 651 uint8_t* emCARD = BigBuf_get_EM_addr();\r
0014cb46
M		 652 uint8_t* data = emCARD + blockNum * 16;\r
653 \r
654 memcpy(data + 0, &blReg, 4);\r
655 memcpy(data + 8, &blReg, 4);\r
656 blReg = blReg ^ 0xffffffff;\r
657 memcpy(data + 4, &blReg, 4);\r
658 \r
659 data[12] = blBlock;\r
660 data[13] = blBlock ^ 0xff;\r
661 data[14] = blBlock;\r
662 data[15] = blBlock ^ 0xff;\r
663 \r
664 return 0;\r
665}\r
666\r
8556b852
M		 667uint64_t emlGetKey(int sectorNum, int keyType) {\r
668 uint8_t key[6];\r
f71f4deb 669 uint8_t* emCARD = BigBuf_get_EM_addr();\r
8556b852 670 \r
baeaf579 671 memcpy(key, emCARD + 16 * (FirstBlockOfSector(sectorNum) + NumBlocksPerSector(sectorNum) - 1) + keyType * 10, 6);\r
8556b852
M		 672 return bytes_to_num(key, 6);\r
673}\r
674\r
8f51ddb0 675void emlClearMem(void) {\r
aea4d766 676 int b;\r
8f51ddb0
M		 677 \r
678 const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};\r
8f51ddb0 679 const uint8_t uid[] = {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};\r
f71f4deb 680 uint8_t* emCARD = BigBuf_get_EM_addr();\r
aea4d766 681 \r
6a1f2d82 682 memset(emCARD, 0, CARD_MEMORY_SIZE);\r
aea4d766 683 \r
684 // fill sectors trailer data\r
685 for(b = 3; b < 256; b<127?(b+=4):(b+=16)) {\r
686 emlSetMem((uint8_t *)trailer, b , 1);\r
687 } \r
8f51ddb0
M		 688\r
689 // uid\r
690 emlSetMem((uint8_t *)uid, 0, 1);\r
691 return;\r
692}\r
c8b6da22 693\r
694\r
695// Mifare desfire commands\r
696int 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
697{\r
698 uint8_t dcmd[5] = {0x00};\r
699 dcmd[0] = cmd;\r
700 memcpy(dcmd+1,data,2);\r
701 AppendCrc14443a(dcmd, 3);\r
702 \r
703 ReaderTransmit(dcmd, sizeof(dcmd), NULL);\r
704 int len = ReaderReceive(answer, answer_parity);\r
705 if(!len) {\r
706 if (MF_DBGLEVEL >= MF_DBG_ERROR) \r
707 Dbprintf("Authentication failed. Card timeout.");\r
708 return 1;\r
709 }\r
710 return len;\r
711}\r
712\r
713int 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
714{\r
715 uint8_t dcmd[20] = {0x00};\r
716 dcmd[0] = cmd;\r
717 memcpy(dcmd+1,data,17);\r
718 AppendCrc14443a(dcmd, 18);\r
719\r
720 ReaderTransmit(dcmd, sizeof(dcmd), NULL);\r
721 int len = ReaderReceive(answer, answer_parity);\r
722 if(!len){\r
723 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
724 Dbprintf("Authentication failed. Card timeout.");\r
725 return 1;\r
726 }\r
727 return len;\r
728}\r
729\r
730int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData){\r
731\r
732 int len;\r
733 // load key, keynumber\r
734 uint8_t data[2]={0x0a, 0x00};\r
29250969 735 uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
736 uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
c8b6da22 737 \r
738 len = mifare_sendcmd_special(NULL, 1, 0x02, data, receivedAnswer,receivedAnswerPar,NULL);\r
739 if (len == 1) {\r
740 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
741 Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
742 return 1;\r
743 }\r
744 \r
745 if (len == 12) {\r
746 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
747 Dbprintf("Auth1 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
748 receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
749 receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
750 receivedAnswer[10],receivedAnswer[11]);\r
751 }\r
752 memcpy(blockData, receivedAnswer, 12);\r
753 return 0;\r
754 }\r
755 return 1;\r
756}\r
757\r
758int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){\r
759\r
760 int len;\r
761 uint8_t data[17] = {0x00};\r
762 data[0] = 0xAF;\r
763 memcpy(data+1,key,16);\r
764 \r
f71f4deb 765 uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
766 uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
c8b6da22 767 \r
768 len = mifare_sendcmd_special2(NULL, 1, 0x03, data, receivedAnswer, receivedAnswerPar ,NULL);\r
769 \r
770 if ((receivedAnswer[0] == 0x03) && (receivedAnswer[1] == 0xae)) {\r
771 if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
772 Dbprintf("Auth Error: %02x %02x", receivedAnswer[0], receivedAnswer[1]);\r
773 return 1;\r
774 }\r
775 \r
776 if (len == 12){\r
777 if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
778 Dbprintf("Auth2 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
779 receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
780 receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
781 receivedAnswer[10],receivedAnswer[11]);\r
782 }\r
783 memcpy(blockData, receivedAnswer, 12);\r
784 return 0;\r
785 }\r
786 return 1;\r
f168b263 787}\r
Proxmark3 GIT tracking
Impressum, Datenschutz