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1 //-----------------------------------------------------------------------------
2 // Ultralight Code (c) 2013,2014 Midnitesnake & Andy Davies of Pentura
3 //
4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
5 // at your option, any later version. See the LICENSE.txt file for the text of
6 // the license.
7 //-----------------------------------------------------------------------------
8 // High frequency MIFARE ULTRALIGHT (C) commands
9 //-----------------------------------------------------------------------------
10 #include "loclass/des.h"
11 #include "cmdhfmfu.h"
12 #include "cmdhfmf.h"
13 #include "cmdhf14a.h"
14 #include "mifare.h"
15
16 #define MAX_UL_BLOCKS 0x0f
17 #define MAX_ULC_BLOCKS 0x2f
18 #define MAX_ULEV1a_BLOCKS 0x0b;
19 #define MAX_ULEV1b_BLOCKS 0x20;
20
21 uint8_t default_3des_keys[7][16] = {
22 { 0x42,0x52,0x45,0x41,0x4b,0x4d,0x45,0x49,0x46,0x59,0x4f,0x55,0x43,0x41,0x4e,0x21 },// 3des std key
23 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },// all zeroes
24 { 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f },// 0x00-0x0F
25 { 0x49,0x45,0x4D,0x4B,0x41,0x45,0x52,0x42,0x21,0x4E,0x41,0x43,0x55,0x4F,0x59,0x46 },// NFC-key
26 { 0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01 },// all ones
27 { 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF },// all FF
28 { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF } // 11 22 33
29 };
30
31 static int CmdHelp(const char *Cmd);
32
33 // return 1 if tag responded to 0x1A.
34 uint8_t requestAuthentication( uint8_t* nonce){
35
36 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_RAW | ISO14A_APPEND_CRC ,2 ,0}};
37 c.d.asBytes[0] = 0x1A;
38 c.d.asBytes[1] = 0x00;
39 SendCommand(&c);
40 UsbCommand resp;
41 WaitForResponse(CMD_ACK, &resp); // skip select answer.
42
43 if ( !(resp.arg[0] & 0xff) )
44 return 0;
45
46 if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
47
48 if ( resp.arg[0] & 0xff ) {
49 memcpy(nonce, resp.d.asBytes+1, 8);
50 return 1;
51 }
52 }
53 return 0;
54 }
55
56 typedef enum TAGTYPE_UL {
57 UNKNOWN = 0x00,
58 UL = 0x01,
59 UL_C = 0x02,
60 UL_EV1_48 = 0x04,
61 UL_EV1_128 = 0x08,
62 MAGIC = 0x10,
63 UL_MAGIC = UL | MAGIC,
64 UL_C_MAGIC = UL_C | MAGIC,
65 UL_ERROR = 0xFF,
66 } TagTypeUL_t;
67
68 uint8_t GetHF14AMfU_Type(void){
69
70 TagTypeUL_t tagtype = UNKNOWN;
71 iso14a_card_select_t card;
72
73 // select and run 0x60 (GET_VERSION - EV1 command)
74 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_RAW | ISO14A_APPEND_CRC, 1, 0}};
75 c.d.asBytes[0] = 0x60;
76 SendCommand(&c);
77 UsbCommand resp;
78 WaitForResponse(CMD_ACK, &resp);
79
80 if ( resp.arg[0] == 0 ) return UL_ERROR;
81
82 memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
83
84 // Ultralight - ATQA / SAK
85 if ( card.atqa[1] != 0x00 && card.atqa[0] != 0x44 && card.sak != 0x00 ) return UL_ERROR;
86
87 // EV1 GetVersion
88 if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
89
90 uint8_t version[8] = {0,0,0,0,0,0,0,0};
91 memcpy(&version, resp.d.asBytes, sizeof(version));
92 uint8_t len = resp.arg[0] & 0xff;
93
94 if ( len == 0x0A && version[6] == 0x0B )
95 tagtype = UL_EV1_48;
96 else if ( len == 0x0A && version[6] != 0x0B )
97 tagtype = UL_EV1_128;
98 else if ( len == 0x01 )
99 tagtype = UL_C;
100 else if ( len == 0x00 )
101 tagtype = UL;
102 }
103
104 // Magic UL-C, mine have a static nonce response to 0x1A command.
105 uint8_t nonce1[8] = {0,0,0,0,0,0,0,0};
106 uint8_t nonce2[8] = {0,0,0,0,0,0,0,0};
107 uint8_t status = requestAuthentication(nonce1);
108 if ( status ) {
109 requestAuthentication(nonce2);
110 if ( !memcmp(nonce1, nonce2, 8) ){
111 tagtype = UL_C_MAGIC;
112 }
113 } else {
114 //TODO: Magic Ultralight test here
115 }
116 return tagtype;
117 }
118
119 int CmdHF14AMfUInfo(const char *Cmd){
120
121 uint8_t datatemp[7] = {0x00};
122 uint8_t isOK = 0;
123 uint8_t data[16] = {0x00};
124 uint8_t *key;
125
126 TagTypeUL_t tagtype = GetHF14AMfU_Type();
127 if (tagtype == UL_ERROR) return -1;
128
129 PrintAndLog("\n-- Tag Information ---------");
130 PrintAndLog("-------------------------------------------------------------");
131
132 if ( tagtype & UL )
133 PrintAndLog(" TYPE : MIFARE Ultralight %s", (tagtype & MAGIC)?"(magic)":"");
134 else if ( tagtype & UL_C)
135 PrintAndLog(" TYPE : MIFARE Ultralight C %s", (tagtype & MAGIC)?"(magic)":"" );
136 else if ( tagtype & UL_EV1_48)
137 PrintAndLog(" TYPE : MIFARE Ultralight EV1 48 bytes");
138 else if ( tagtype & UL_EV1_128)
139 PrintAndLog(" TYPE : MIFARE Ultralight EV1 128 bytes");
140 else
141 PrintAndLog(" TYPE : Unknown %x",tagtype);
142
143 // read pages 0,1,2,4
144 UsbCommand c = {CMD_MIFAREU_READCARD, {0, 4}};
145 SendCommand(&c);
146 UsbCommand resp;
147
148 if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
149 isOK = resp.arg[0] & 0xff;
150 memcpy(data, resp.d.asBytes, sizeof(data));
151
152 if (!isOK) {
153 PrintAndLog("Error reading from tag");
154 return -1;
155 }
156 } else {
157 PrintAndLog("Command execute timed out");
158 return -1;
159 }
160
161 // UID
162 memcpy( datatemp, data, 3);
163 memcpy( datatemp+3, data+4, 4);
164
165 PrintAndLog(" UID : %s ", sprint_hex(datatemp, 7));
166 PrintAndLog(" UID[0] : (Manufacturer Byte) = %02x, Manufacturer: %s", datatemp[0], getTagInfo(datatemp[0]) );
167
168 // BBC
169 // CT (cascade tag byte) 0x88 xor SN0 xor SN1 xor SN2
170 int crc0 = 0x88 ^ data[0] ^ data[1] ^data[2];
171 if ( data[3] == crc0 )
172 PrintAndLog(" BCC0 : %02x - Ok", data[3]);
173 else
174 PrintAndLog(" BCC0 : %02x - crc should be %02x", data[3], crc0);
175
176 int crc1 = data[4] ^ data[5] ^ data[6] ^data[7];
177 if ( data[8] == crc1 )
178 PrintAndLog(" BCC1 : %02x - Ok", data[8]);
179 else
180 PrintAndLog(" BCC1 : %02x - crc should be %02x", data[8], crc1 );
181
182 PrintAndLog(" Internal : %s ", sprint_hex(data + 9, 1));
183
184 memcpy(datatemp, data+10, 2);
185 PrintAndLog(" Lock : %s - %s", sprint_hex(datatemp, 2),printBits( 2, &datatemp) );
186 PrintAndLog("OneTimePad : %s ", sprint_hex(data + 3*4, 4));
187 PrintAndLog("");
188
189
190 PrintAndLog("--- ");
191 if ((tagtype & UL_C)){
192
193 PrintAndLog("Trying some default 3des keys");
194
195 for (uint8_t i = 0; i < 5; ++i ){
196 key = default_3des_keys[i];
197 if (try3DesAuthentication(key)){
198 PrintAndLog("Found default 3des key: %s", sprint_hex(key,16));
199 return 0;
200 }
201 }
202 }
203 else if ((tagtype & (UL_EV1_48 | UL_EV1_128))) {
204 //********** TODO ********************************
205 // --problem, there is a failed pwd tries counter in UL-EV1
206 //PrintAndLog("Trying some known EV1 passwords.");
207 }
208
209 // disconnect
210 // c.arg[0] = 0;
211 // c.arg[1] = 0;
212 // c.arg[2] = 0;
213 // SendCommand(&c);
214 return 0;
215 }
216
217 //
218 // Mifare Ultralight Write Single Block
219 //
220 int CmdHF14AMfUWrBl(const char *Cmd){
221 uint8_t blockNo = -1;
222 bool chinese_card = FALSE;
223 uint8_t bldata[16] = {0x00};
224 UsbCommand resp;
225
226 char cmdp = param_getchar(Cmd, 0);
227 if (strlen(Cmd) < 3 || cmdp == 'h' || cmdp == 'H') {
228 PrintAndLog("Usage: hf mfu wrbl <block number> <block data (8 hex symbols)> [w]");
229 PrintAndLog(" [block number]");
230 PrintAndLog(" [block data] - (8 hex symbols)");
231 PrintAndLog(" [w] - Chinese magic ultralight tag");
232 PrintAndLog("");
233 PrintAndLog(" sample: hf mfu wrbl 0 01020304");
234 PrintAndLog("");
235 return 0;
236 }
237
238 blockNo = param_get8(Cmd, 0);
239
240 if (blockNo > MAX_UL_BLOCKS){
241 PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight Cards!");
242 return 1;
243 }
244
245 if (param_gethex(Cmd, 1, bldata, 8)) {
246 PrintAndLog("Block data must include 8 HEX symbols");
247 return 1;
248 }
249
250 if (strchr(Cmd,'w') != 0 || strchr(Cmd,'W') != 0 ) {
251 chinese_card = TRUE;
252 }
253
254 if ( blockNo <= 3) {
255 if (!chinese_card){
256 PrintAndLog("Access Denied");
257 } else {
258 PrintAndLog("--specialblock no:%02x", blockNo);
259 PrintAndLog("--data: %s", sprint_hex(bldata, 4));
260 UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
261 memcpy(d.d.asBytes,bldata, 4);
262 SendCommand(&d);
263 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
264 uint8_t isOK = resp.arg[0] & 0xff;
265 PrintAndLog("isOk:%02x", isOK);
266 } else {
267 PrintAndLog("Command execute timeout");
268 }
269 }
270 } else {
271 PrintAndLog("--block no:%02x", blockNo);
272 PrintAndLog("--data: %s", sprint_hex(bldata, 4));
273 UsbCommand e = {CMD_MIFAREU_WRITEBL, {blockNo}};
274 memcpy(e.d.asBytes,bldata, 4);
275 SendCommand(&e);
276 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
277 uint8_t isOK = resp.arg[0] & 0xff;
278 PrintAndLog("isOk:%02x", isOK);
279 } else {
280 PrintAndLog("Command execute timeout");
281 }
282 }
283 return 0;
284 }
285
286 //
287 // Mifare Ultralight Read Single Block
288 //
289 int CmdHF14AMfURdBl(const char *Cmd){
290
291 UsbCommand resp;
292 uint8_t blockNo = -1;
293 char cmdp = param_getchar(Cmd, 0);
294
295 if (strlen(Cmd) < 1 || cmdp == 'h' || cmdp == 'H') {
296 PrintAndLog("Usage: hf mfu rdbl <block number>");
297 PrintAndLog(" sample: hfu mfu rdbl 0");
298 return 0;
299 }
300
301 blockNo = param_get8(Cmd, 0);
302
303 if (blockNo > MAX_UL_BLOCKS){
304 PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight");
305 return 1;
306 }
307
308 UsbCommand c = {CMD_MIFAREU_READBL, {blockNo}};
309 SendCommand(&c);
310
311
312 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
313 uint8_t isOK = resp.arg[0] & 0xff;
314 if (isOK) {
315 uint8_t *data = resp.d.asBytes;
316 PrintAndLog("Block: %0d (0x%02X) [ %s]", (int)blockNo, blockNo, sprint_hex(data, 4));
317 }
318 else {
319 PrintAndLog("Failed reading block: (%02x)", isOK);
320 }
321 } else {
322 PrintAndLog("Command execute time-out");
323 }
324
325 return 0;
326 }
327
328 int usage_hf_mfu_dump(void)
329 {
330 PrintAndLog("Reads all pages from Ultralight, Ultralight-C, Ultralight EV1");
331 PrintAndLog("and saves binary dump into the file `filename.bin` or `cardUID.bin`");
332 PrintAndLog("It autodetects card type.\n");
333 PrintAndLog("Usage: hf mfu dump <filename w/o .bin>");
334 PrintAndLog(" sample : hf mfu dump");
335 PrintAndLog(" : hf mfu dump myfile");
336 PrintAndLog(" : hf mfu dump 1 myfile");
337 return 0;
338 }
339 //
340 // Mifare Ultralight / Ultralight-C / Ultralight-EV1
341 // Read and Dump Card Contents, using auto detection of tag size.
342 //
343 // TODO: take a password to read UL-C / UL-EV1 tags.
344 int CmdHF14AMfUDump(const char *Cmd){
345
346 char cmdp = param_getchar(Cmd, 0);
347 if (cmdp == 'h' || cmdp == 'H')
348 return usage_hf_mfu_dump();
349
350 FILE *fout;
351 char filename[FILE_PATH_SIZE] = {0x00};
352 char * fnameptr = filename;
353 char* str = "Dumping Ultralight%s%s Card Data...";
354
355 uint8_t *lockbytes_t = NULL;
356 uint8_t lockbytes[2] = {0x00};
357 uint8_t *lockbytes_t2 = NULL;
358 uint8_t lockbytes2[2] = {0x00};
359 bool bit[16] = {0x00};
360 bool bit2[16] = {0x00};
361 uint8_t data[176] = {0x00};
362
363 int i = 0;
364 int Pages = 16;
365 bool tmplockbit = false;
366
367 TagTypeUL_t tagtype = GetHF14AMfU_Type();
368 if (tagtype == UL_ERROR) return -1;
369
370 if ( tagtype & UL ) {
371 Pages = 16;
372 PrintAndLog(str,"", (tagtype & MAGIC)?" (magic)":"" );
373 }
374 else if ( tagtype & UL_C ) {
375 Pages = 44;
376 PrintAndLog(str,"-C", (tagtype & MAGIC)?" (magic)":"" );
377 }
378 else if ( tagtype & UL_EV1_48 ) {
379 Pages = 18;
380 PrintAndLog(str," EV1_48","");
381 }
382 else if ( tagtype & UL_EV1_128 ) {
383 Pages = 32;
384 PrintAndLog(str," EV1_128","");
385 } else {
386 Pages = 16;
387 PrintAndLog("Dumping unknown Ultralight, using default values.");
388 }
389
390 UsbCommand c = {CMD_MIFAREU_READCARD, {0,Pages}};
391 SendCommand(&c);
392 UsbCommand resp;
393
394 if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
395 PrintAndLog("Command execute time-out");
396 return 0;
397 }
398
399 if (!resp.arg[0] ) {
400 PrintAndLog("Read command failed");
401 return 0;
402 }
403 memcpy(data, resp.d.asBytes, sizeof(data));
404
405 // Load lock bytes.
406 int j = 0;
407
408 lockbytes_t = data + 8;
409 lockbytes[0] = lockbytes_t[2];
410 lockbytes[1] = lockbytes_t[3];
411 for(j = 0; j < 16; j++){
412 bit[j] = lockbytes[j/8] & ( 1 <<(7-j%8));
413 }
414
415 // Load bottom lockbytes if available
416 if ( Pages == 44 ) {
417 lockbytes_t2 = data + (40*4);
418 lockbytes2[0] = lockbytes_t2[2];
419 lockbytes2[1] = lockbytes_t2[3];
420 for (j = 0; j < 16; j++) {
421 bit2[j] = lockbytes2[j/8] & ( 1 <<(7-j%8));
422 }
423 }
424
425 for (i = 0; i < Pages; ++i) {
426 if ( i < 3 ) {
427 PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
428 continue;
429 }
430 switch(i){
431 case 3: tmplockbit = bit[4]; break;
432 case 4: tmplockbit = bit[3]; break;
433 case 5: tmplockbit = bit[2]; break;
434 case 6: tmplockbit = bit[1]; break;
435 case 7: tmplockbit = bit[0]; break;
436 case 8: tmplockbit = bit[15]; break;
437 case 9: tmplockbit = bit[14]; break;
438 case 10: tmplockbit = bit[13]; break;
439 case 11: tmplockbit = bit[12]; break;
440 case 12: tmplockbit = bit[11]; break;
441 case 13: tmplockbit = bit[10]; break;
442 case 14: tmplockbit = bit[9]; break;
443 case 15: tmplockbit = bit[8]; break;
444 case 16:
445 case 17:
446 case 18:
447 case 19: tmplockbit = bit2[6]; break;
448 case 20:
449 case 21:
450 case 22:
451 case 23: tmplockbit = bit2[5]; break;
452 case 24:
453 case 25:
454 case 26:
455 case 27: tmplockbit = bit2[4]; break;
456 case 28:
457 case 29:
458 case 30:
459 case 31: tmplockbit = bit2[2]; break;
460 case 32:
461 case 33:
462 case 34:
463 case 35: tmplockbit = bit2[1]; break;
464 case 36:
465 case 37:
466 case 38:
467 case 39: tmplockbit = bit2[0]; break;
468 case 40: tmplockbit = bit2[12]; break;
469 case 41: tmplockbit = bit2[11]; break;
470 case 42: tmplockbit = bit2[10]; break; //auth0
471 case 43: tmplockbit = bit2[9]; break; //auth1
472 default: break;
473 }
474 PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),tmplockbit);
475 }
476
477 int len = param_getstr(Cmd,0,filename);
478 if (len > FILE_PATH_SIZE-5)
479 len = FILE_PATH_SIZE-5;
480
481 if (len < 1) {
482 sprintf(fnameptr,"%02X%02X%02X%02X%02X%02X%02X.bin",
483 data[0], data[1], data[2], data[4], data[5], data[6], data[7]);
484 } else {
485 sprintf(fnameptr + len," .bin");
486 }
487
488 if ((fout = fopen(filename,"wb")) == NULL) {
489 PrintAndLog("Could not create file name %s", filename);
490 return 1;
491 }
492 fwrite( data, 1, Pages*4, fout );
493 fclose(fout);
494
495 PrintAndLog("Dumped %d pages, wrote %d bytes to %s", Pages, Pages*4, filename);
496 return 0;
497 }
498
499 // Needed to Authenticate to Ultralight C tags
500 void rol (uint8_t *data, const size_t len){
501 uint8_t first = data[0];
502 for (size_t i = 0; i < len-1; i++) {
503 data[i] = data[i+1];
504 }
505 data[len-1] = first;
506 }
507
508 //-------------------------------------------------------------------------------
509 // Ultralight C Methods
510 //-------------------------------------------------------------------------------
511
512 //
513 // Ultralight C Authentication Demo {currently uses hard-coded key}
514 //
515 int CmdHF14AMfucAuth(const char *Cmd){
516
517 uint8_t keyNo = 0;
518 bool errors = false;
519
520 char cmdp = param_getchar(Cmd, 0);
521
522 //Change key to user defined one
523 if (cmdp == 'k' || cmdp == 'K'){
524 keyNo = param_get8(Cmd, 1);
525 if(keyNo > 6)
526 errors = true;
527 }
528
529 if (cmdp == 'h' || cmdp == 'H')
530 errors = true;
531
532 if (errors) {
533 PrintAndLog("Usage: hf mfu cauth k <key number>");
534 PrintAndLog(" 0 (default): 3DES standard key");
535 PrintAndLog(" 1 : all 0x00 key");
536 PrintAndLog(" 2 : 0x00-0x0F key");
537 PrintAndLog(" 3 : nfc key");
538 PrintAndLog(" 4 : all 0x01 key");
539 PrintAndLog(" 5 : all 0xff key");
540 PrintAndLog(" 6 : 0x00-0xFF key");
541 PrintAndLog("\n sample : hf mfu cauth k");
542 PrintAndLog(" : hf mfu cauth k 3");
543 return 0;
544 }
545
546 uint8_t *key = default_3des_keys[keyNo];
547 if (try3DesAuthentication(key)>0)
548 PrintAndLog("Authentication successful. 3des key: %s",sprint_hex(key, 16));
549 else
550 PrintAndLog("Authentication failed");
551
552 return 0;
553 }
554
555 int try3DesAuthentication( uint8_t *key){
556
557 uint8_t blockNo = 0;
558 uint32_t cuid = 0;
559
560 des3_context ctx = { 0 };
561
562 uint8_t random_a[8] = { 1,1,1,1,1,1,1,1 };
563 uint8_t random_b[8] = { 0 };
564 uint8_t enc_random_b[8] = { 0 };
565 uint8_t rnd_ab[16] = { 0 };
566 uint8_t iv[8] = { 0 };
567
568 UsbCommand c = {CMD_MIFAREUC_AUTH1, {blockNo}};
569 SendCommand(&c);
570 UsbCommand resp;
571 if ( !WaitForResponseTimeout(CMD_ACK, &resp, 1500) ) return -1;
572 if ( !(resp.arg[0] & 0xff) ) return -2;
573
574 cuid = resp.arg[1];
575 memcpy(enc_random_b,resp.d.asBytes+1,8);
576
577 des3_set2key_dec(&ctx, key);
578 // context, mode, length, IV, input, output
579 des3_crypt_cbc( &ctx, DES_DECRYPT, sizeof(random_b), iv , enc_random_b , random_b);
580
581 rol(random_b,8);
582 memcpy(rnd_ab ,random_a,8);
583 memcpy(rnd_ab+8,random_b,8);
584
585 //PrintAndLog(" RndA :%s", sprint_hex(random_a, 8));
586 //PrintAndLog(" enc(RndB) :%s", sprint_hex(enc_random_b, 8));
587 //PrintAndLog(" RndB :%s", sprint_hex(random_b, 8));
588 //PrintAndLog(" A+B :%s", sprint_hex(rnd_ab, 16));
589
590 des3_set2key_enc(&ctx, key);
591 // context, mode, length, IV, input, output
592 des3_crypt_cbc(&ctx, DES_ENCRYPT, sizeof(rnd_ab), enc_random_b, rnd_ab, rnd_ab);
593
594 //Auth2
595 c.cmd = CMD_MIFAREUC_AUTH2;
596 c.arg[0] = cuid;
597 memcpy(c.d.asBytes, rnd_ab, 16);
598 SendCommand(&c);
599
600 if ( !WaitForResponseTimeout(CMD_ACK, &resp, 1500)) return -1;
601 if ( !(resp.arg[0] & 0xff)) return -2;
602
603 uint8_t enc_resp[8] = { 0 };
604 uint8_t resp_random_a[8] = { 0 };
605 memcpy(enc_resp, resp.d.asBytes+1, 8);
606
607 des3_set2key_dec(&ctx, key);
608 // context, mode, length, IV, input, output
609 des3_crypt_cbc( &ctx, DES_DECRYPT, 8, enc_random_b, enc_resp, resp_random_a);
610
611 //PrintAndLog(" enc(A+B) :%s", sprint_hex(rnd_ab, 16));
612 //PrintAndLog(" enc(RndA') :%s", sprint_hex(enc_resp, 8));
613
614 if ( !memcmp(resp_random_a, random_a, 8))
615 return 1;
616 return 0;
617 }
618
619 /**
620 A test function to validate that the polarssl-function works the same
621 was as the openssl-implementation.
622 Commented out, since it requires openssl
623
624 int CmdTestDES(const char * cmd)
625 {
626 uint8_t key[16] = {0x00};
627
628 memcpy(key,key3_3des_data,16);
629 DES_cblock RndA, RndB;
630
631 PrintAndLog("----------OpenSSL DES implementation----------");
632 {
633 uint8_t e_RndB[8] = {0x00};
634 unsigned char RndARndB[16] = {0x00};
635
636 DES_cblock iv = { 0 };
637 DES_key_schedule ks1,ks2;
638 DES_cblock key1,key2;
639
640 memcpy(key,key3_3des_data,16);
641 memcpy(key1,key,8);
642 memcpy(key2,key+8,8);
643
644
645 DES_set_key((DES_cblock *)key1,&ks1);
646 DES_set_key((DES_cblock *)key2,&ks2);
647
648 DES_random_key(&RndA);
649 PrintAndLog(" RndA:%s",sprint_hex(RndA, 8));
650 PrintAndLog(" e_RndB:%s",sprint_hex(e_RndB, 8));
651 //void DES_ede2_cbc_encrypt(const unsigned char *input,
652 // unsigned char *output, long length, DES_key_schedule *ks1,
653 // DES_key_schedule *ks2, DES_cblock *ivec, int enc);
654 DES_ede2_cbc_encrypt(e_RndB,RndB,sizeof(e_RndB),&ks1,&ks2,&iv,0);
655
656 PrintAndLog(" RndB:%s",sprint_hex(RndB, 8));
657 rol(RndB,8);
658 memcpy(RndARndB,RndA,8);
659 memcpy(RndARndB+8,RndB,8);
660 PrintAndLog(" RA+B:%s",sprint_hex(RndARndB, 16));
661 DES_ede2_cbc_encrypt(RndARndB,RndARndB,sizeof(RndARndB),&ks1,&ks2,&e_RndB,1);
662 PrintAndLog("enc(RA+B):%s",sprint_hex(RndARndB, 16));
663
664 }
665 PrintAndLog("----------PolarSSL implementation----------");
666 {
667 uint8_t random_a[8] = { 0 };
668 uint8_t enc_random_a[8] = { 0 };
669 uint8_t random_b[8] = { 0 };
670 uint8_t enc_random_b[8] = { 0 };
671 uint8_t random_a_and_b[16] = { 0 };
672 des3_context ctx = { 0 };
673
674 memcpy(random_a, RndA,8);
675
676 uint8_t output[8] = { 0 };
677 uint8_t iv[8] = { 0 };
678
679 PrintAndLog(" RndA :%s",sprint_hex(random_a, 8));
680 PrintAndLog(" e_RndB:%s",sprint_hex(enc_random_b, 8));
681
682 des3_set2key_dec(&ctx, key);
683
684 des3_crypt_cbc(&ctx // des3_context *ctx
685 , DES_DECRYPT // int mode
686 , sizeof(random_b) // size_t length
687 , iv // unsigned char iv[8]
688 , enc_random_b // const unsigned char *input
689 , random_b // unsigned char *output
690 );
691
692 PrintAndLog(" RndB:%s",sprint_hex(random_b, 8));
693
694 rol(random_b,8);
695 memcpy(random_a_and_b ,random_a,8);
696 memcpy(random_a_and_b+8,random_b,8);
697
698 PrintAndLog(" RA+B:%s",sprint_hex(random_a_and_b, 16));
699
700 des3_set2key_enc(&ctx, key);
701
702 des3_crypt_cbc(&ctx // des3_context *ctx
703 , DES_ENCRYPT // int mode
704 , sizeof(random_a_and_b) // size_t length
705 , enc_random_b // unsigned char iv[8]
706 , random_a_and_b // const unsigned char *input
707 , random_a_and_b // unsigned char *output
708 );
709
710 PrintAndLog("enc(RA+B):%s",sprint_hex(random_a_and_b, 16));
711 }
712 return 0;
713 }
714 **/
715 //
716 // Ultralight C Read Single Block
717 //
718 int CmdHF14AMfUCRdBl(const char *Cmd)
719 {
720 UsbCommand resp;
721 bool hasPwd = FALSE;
722 uint8_t blockNo = -1;
723 unsigned char key[16];
724 char cmdp = param_getchar(Cmd, 0);
725
726 if (strlen(Cmd) < 1 || cmdp == 'h' || cmdp == 'H') {
727 PrintAndLog("Usage: hf mfu crdbl <block number> <password>");
728 PrintAndLog("");
729 PrintAndLog("sample: hf mfu crdbl 0");
730 PrintAndLog(" hf mfu crdbl 0 00112233445566778899AABBCCDDEEFF");
731 return 0;
732 }
733
734 blockNo = param_get8(Cmd, 0);
735 if (blockNo < 0) {
736 PrintAndLog("Wrong block number");
737 return 1;
738 }
739
740 if (blockNo > MAX_ULC_BLOCKS ){
741 PrintAndLog("Error: Maximum number of blocks is 47 for Ultralight-C");
742 return 1;
743 }
744
745 // key
746 if ( strlen(Cmd) > 3){
747 if (param_gethex(Cmd, 1, key, 32)) {
748 PrintAndLog("Key must include %d HEX symbols", 32);
749 return 1;
750 } else {
751 hasPwd = TRUE;
752 }
753 }
754
755 //Read Block
756 UsbCommand c = {CMD_MIFAREU_READBL, {blockNo}};
757 if ( hasPwd ) {
758 c.arg[1] = 1;
759 memcpy(c.d.asBytes,key,16);
760 }
761 SendCommand(&c);
762
763 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
764 uint8_t isOK = resp.arg[0] & 0xff;
765 if (isOK) {
766 uint8_t *data = resp.d.asBytes;
767 PrintAndLog("Block: %0d (0x%02X) [ %s]", (int)blockNo, blockNo, sprint_hex(data, 4));
768 }
769 else {
770 PrintAndLog("Failed reading block: (%02x)", isOK);
771 }
772 } else {
773 PrintAndLog("Command execute time-out");
774 }
775 return 0;
776 }
777
778 //
779 // Mifare Ultralight C Write Single Block
780 //
781 int CmdHF14AMfUCWrBl(const char *Cmd){
782
783 uint8_t blockNo = -1;
784 bool chinese_card = FALSE;
785 uint8_t bldata[16] = {0x00};
786 UsbCommand resp;
787
788 char cmdp = param_getchar(Cmd, 0);
789
790 if (strlen(Cmd) < 3 || cmdp == 'h' || cmdp == 'H') {
791 PrintAndLog("Usage: hf mfu cwrbl <block number> <block data (8 hex symbols)> [w]");
792 PrintAndLog(" [block number]");
793 PrintAndLog(" [block data] - (8 hex symbols)");
794 PrintAndLog(" [w] - Chinese magic ultralight tag");
795 PrintAndLog("");
796 PrintAndLog(" sample: hf mfu cwrbl 0 01020304");
797 PrintAndLog("");
798 return 0;
799 }
800
801 blockNo = param_get8(Cmd, 0);
802 if (blockNo > MAX_ULC_BLOCKS ){
803 PrintAndLog("Error: Maximum number of blocks is 47 for Ultralight-C Cards!");
804 return 1;
805 }
806
807 if (param_gethex(Cmd, 1, bldata, 8)) {
808 PrintAndLog("Block data must include 8 HEX symbols");
809 return 1;
810 }
811
812 if (strchr(Cmd,'w') != 0 || strchr(Cmd,'W') != 0 ) {
813 chinese_card = TRUE;
814 }
815
816 if ( blockNo <= 3 ) {
817 if (!chinese_card){
818 PrintAndLog("Access Denied");
819 } else {
820 PrintAndLog("--Special block no: 0x%02x", blockNo);
821 PrintAndLog("--Data: %s", sprint_hex(bldata, 4));
822 UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
823 memcpy(d.d.asBytes,bldata, 4);
824 SendCommand(&d);
825 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
826 uint8_t isOK = resp.arg[0] & 0xff;
827 PrintAndLog("isOk:%02x", isOK);
828 } else {
829 PrintAndLog("Command execute timeout");
830 }
831 }
832 } else {
833 PrintAndLog("--Block no : 0x%02x", blockNo);
834 PrintAndLog("--Data: %s", sprint_hex(bldata, 4));
835 UsbCommand e = {CMD_MIFAREU_WRITEBL, {blockNo}};
836 memcpy(e.d.asBytes,bldata, 4);
837 SendCommand(&e);
838 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
839 uint8_t isOK = resp.arg[0] & 0xff;
840 PrintAndLog("isOk : %02x", isOK);
841 } else {
842 PrintAndLog("Command execute timeout");
843 }
844 }
845 return 0;
846 }
847
848 //
849 // Mifare Ultralight C - Set password
850 //
851 int CmdHF14AMfucSetPwd(const char *Cmd){
852
853 uint8_t pwd[16] = {0x00};
854
855 char cmdp = param_getchar(Cmd, 0);
856
857 if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') {
858 PrintAndLog("Usage: hf mfu setpwd <password (32 hex symbols)>");
859 PrintAndLog(" [password] - (32 hex symbols)");
860 PrintAndLog("");
861 PrintAndLog("sample: hf mfu setpwd 000102030405060708090a0b0c0d0e0f");
862 PrintAndLog("");
863 return 0;
864 }
865
866 if (param_gethex(Cmd, 0, pwd, 32)) {
867 PrintAndLog("Password must include 32 HEX symbols");
868 return 1;
869 }
870
871 UsbCommand c = {CMD_MIFAREUC_SETPWD};
872 memcpy( c.d.asBytes, pwd, 16);
873 SendCommand(&c);
874
875 UsbCommand resp;
876
877 if (WaitForResponseTimeout(CMD_ACK,&resp,1500) ) {
878 if ( (resp.arg[0] & 0xff) == 1)
879 PrintAndLog("Ultralight-C new password: %s", sprint_hex(pwd,16));
880 else{
881 PrintAndLog("Failed writing at block %d", resp.arg[1] & 0xff);
882 return 1;
883 }
884 }
885 else {
886 PrintAndLog("command execution time out");
887 return 1;
888 }
889
890 return 0;
891 }
892
893 //
894 // Magic UL / UL-C tags - Set UID
895 //
896 int CmdHF14AMfucSetUid(const char *Cmd){
897
898 UsbCommand c;
899 UsbCommand resp;
900 uint8_t uid[7] = {0x00};
901 char cmdp = param_getchar(Cmd, 0);
902
903 if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') {
904 PrintAndLog("Usage: hf mfu setuid <uid (14 hex symbols)>");
905 PrintAndLog(" [uid] - (14 hex symbols)");
906 PrintAndLog("\nThis only works for Magic Ultralight tags.");
907 PrintAndLog("");
908 PrintAndLog("sample: hf mfu setuid 11223344556677");
909 PrintAndLog("");
910 return 0;
911 }
912
913 if (param_gethex(Cmd, 0, uid, 14)) {
914 PrintAndLog("UID must include 14 HEX symbols");
915 return 1;
916 }
917
918 // read block2.
919 c.cmd = CMD_MIFAREU_READBL;
920 c.arg[0] = 2;
921 SendCommand(&c);
922 if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
923 PrintAndLog("Command execute timeout");
924 return 2;
925 }
926
927 // save old block2.
928 uint8_t oldblock2[4] = {0x00};
929 memcpy(resp.d.asBytes, oldblock2, 4);
930
931 // block 0.
932 c.cmd = CMD_MIFAREU_WRITEBL;
933 c.arg[0] = 0;
934 c.d.asBytes[0] = uid[0];
935 c.d.asBytes[1] = uid[1];
936 c.d.asBytes[2] = uid[2];
937 c.d.asBytes[3] = 0x88 ^ uid[0] ^ uid[1] ^ uid[2];
938 SendCommand(&c);
939 if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
940 PrintAndLog("Command execute timeout");
941 return 3;
942 }
943
944 // block 1.
945 c.arg[0] = 1;
946 c.d.asBytes[0] = uid[3];
947 c.d.asBytes[1] = uid[4];
948 c.d.asBytes[2] = uid[5];
949 c.d.asBytes[3] = uid[6];
950 SendCommand(&c);
951 if (!WaitForResponseTimeout(CMD_ACK,&resp,1500) ) {
952 PrintAndLog("Command execute timeout");
953 return 4;
954 }
955
956 // block 2.
957 c.arg[0] = 2;
958 c.d.asBytes[0] = uid[3] ^ uid[4] ^ uid[5] ^ uid[6];
959 c.d.asBytes[1] = oldblock2[1];
960 c.d.asBytes[2] = oldblock2[2];
961 c.d.asBytes[3] = oldblock2[3];
962 SendCommand(&c);
963 if (!WaitForResponseTimeout(CMD_ACK,&resp,1500) ) {
964 PrintAndLog("Command execute timeout");
965 return 5;
966 }
967
968 return 0;
969 }
970
971 int CmdHF14AMfuGenDiverseKeys(const char *Cmd){
972
973 uint8_t iv[8] = { 0x00 };
974 uint8_t block = 0x07;
975
976 // UL-EV1
977 //04 57 b6 e2 05 3f 80 UID
978 //4a f8 4b 19 PWD
979 uint8_t uid[] = { 0xF4,0xEA, 0x54, 0x8E };
980 uint8_t mifarekeyA[] = { 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5 };
981 uint8_t mifarekeyB[] = { 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5 };
982 uint8_t dkeyA[8] = { 0x00 };
983 uint8_t dkeyB[8] = { 0x00 };
984
985 uint8_t masterkey[] = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xdd,0xee,0xff };
986
987 uint8_t mix[8] = { 0x00 };
988 uint8_t divkey[8] = { 0x00 };
989
990 memcpy(mix, mifarekeyA, 4);
991
992 mix[4] = mifarekeyA[4] ^ uid[0];
993 mix[5] = mifarekeyA[5] ^ uid[1];
994 mix[6] = block ^ uid[2];
995 mix[7] = uid[3];
996
997 des3_context ctx = { 0x00 };
998 des3_set2key_enc(&ctx, masterkey);
999
1000 des3_crypt_cbc(&ctx // des3_context
1001 , DES_ENCRYPT // int mode
1002 , sizeof(mix) // length
1003 , iv // iv[8]
1004 , mix // input
1005 , divkey // output
1006 );
1007
1008 PrintAndLog("3DES version");
1009 PrintAndLog("Masterkey :\t %s", sprint_hex(masterkey,sizeof(masterkey)));
1010 PrintAndLog("UID :\t %s", sprint_hex(uid, sizeof(uid)));
1011 PrintAndLog("Sector :\t %0d", block);
1012 PrintAndLog("Mifare key :\t %s", sprint_hex(mifarekeyA, sizeof(mifarekeyA)));
1013 PrintAndLog("Message :\t %s", sprint_hex(mix, sizeof(mix)));
1014 PrintAndLog("Diversified key: %s", sprint_hex(divkey+1, 6));
1015
1016 PrintAndLog("\n DES version");
1017
1018 for (int i=0; i < sizeof(mifarekeyA); ++i){
1019 dkeyA[i] = (mifarekeyA[i] << 1) & 0xff;
1020 dkeyA[6] |= ((mifarekeyA[i] >> 7) & 1) << (i+1);
1021 }
1022
1023 for (int i=0; i < sizeof(mifarekeyB); ++i){
1024 dkeyB[1] |= ((mifarekeyB[i] >> 7) & 1) << (i+1);
1025 dkeyB[2+i] = (mifarekeyB[i] << 1) & 0xff;
1026 }
1027
1028 uint8_t zeros[8] = {0x00};
1029 uint8_t newpwd[8] = {0x00};
1030 uint8_t dmkey[24] = {0x00};
1031 memcpy(dmkey, dkeyA, 8);
1032 memcpy(dmkey+8, dkeyB, 8);
1033 memcpy(dmkey+16, dkeyA, 8);
1034 memset(iv, 0x00, 8);
1035
1036 des3_set3key_enc(&ctx, dmkey);
1037
1038 des3_crypt_cbc(&ctx // des3_context
1039 , DES_ENCRYPT // int mode
1040 , sizeof(newpwd) // length
1041 , iv // iv[8]
1042 , zeros // input
1043 , newpwd // output
1044 );
1045
1046 PrintAndLog("Mifare dkeyA :\t %s", sprint_hex(dkeyA, sizeof(dkeyA)));
1047 PrintAndLog("Mifare dkeyB :\t %s", sprint_hex(dkeyB, sizeof(dkeyB)));
1048 PrintAndLog("Mifare ABA :\t %s", sprint_hex(dmkey, sizeof(dmkey)));
1049 PrintAndLog("Mifare Pwd :\t %s", sprint_hex(newpwd, sizeof(newpwd)));
1050
1051 return 0;
1052 }
1053
1054 // static uint8_t * diversify_key(uint8_t * key){
1055
1056 // for(int i=0; i<16; i++){
1057 // if(i<=6) key[i]^=cuid[i];
1058 // if(i>6) key[i]^=cuid[i%7];
1059 // }
1060 // return key;
1061 // }
1062
1063 // static void GenerateUIDe( uint8_t *uid, uint8_t len){
1064 // for (int i=0; i<len; ++i){
1065
1066 // }
1067 // return;
1068 // }
1069
1070 static command_t CommandTable[] =
1071 {
1072 {"help", CmdHelp, 1, "This help"},
1073 {"dbg", CmdHF14AMfDbg, 0, "Set default debug mode"},
1074 {"info", CmdHF14AMfUInfo, 0, "Tag information"},
1075 {"dump", CmdHF14AMfUDump, 0, "Dump Ultralight / Ultralight-C tag to binary file"},
1076 {"rdbl", CmdHF14AMfURdBl, 0, "Read block - Ultralight"},
1077 {"wrbl", CmdHF14AMfUWrBl, 0, "Write block - Ultralight"},
1078 {"crdbl", CmdHF14AMfUCRdBl, 0, "Read block - Ultralight C"},
1079 {"cwrbl", CmdHF14AMfUCWrBl, 0, "Write block - Ultralight C"},
1080 {"cauth", CmdHF14AMfucAuth, 0, "Authentication - Ultralight C"},
1081 {"setpwd", CmdHF14AMfucSetPwd, 1, "Set 3des password - Ultralight-C"},
1082 {"setuid", CmdHF14AMfucSetUid, 1, "Set UID - MAGIC tags only"},
1083 {"gen", CmdHF14AMfuGenDiverseKeys , 1, "Generate 3des mifare diversified keys"},
1084 {NULL, NULL, 0, NULL}
1085 };
1086
1087 int CmdHFMFUltra(const char *Cmd){
1088 WaitForResponseTimeout(CMD_ACK,NULL,100);
1089 CmdsParse(CommandTable, Cmd);
1090 return 0;
1091 }
1092
1093 int CmdHelp(const char *Cmd){
1094 CmdsHelp(CommandTable);
1095 return 0;
1096 }
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