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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[10] = {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 // Magic Ultralight test here - TODO
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 return 0;
209 }
210
211 //
212 // Mifare Ultralight Write Single Block
213 //
214 int CmdHF14AMfUWrBl(const char *Cmd){
215 uint8_t blockNo = -1;
216 bool chinese_card = FALSE;
217 uint8_t bldata[16] = {0x00};
218 UsbCommand resp;
219
220 char cmdp = param_getchar(Cmd, 0);
221 if (strlen(Cmd) < 3 || cmdp == 'h' || cmdp == 'H') {
222 PrintAndLog("Usage: hf mfu wrbl <block number> <block data (8 hex symbols)> [w]");
223 PrintAndLog(" [block number]");
224 PrintAndLog(" [block data] - (8 hex symbols)");
225 PrintAndLog(" [w] - Chinese magic ultralight tag");
226 PrintAndLog("");
227 PrintAndLog(" sample: hf mfu wrbl 0 01020304");
228 PrintAndLog("");
229 return 0;
230 }
231
232 blockNo = param_get8(Cmd, 0);
233
234 if (blockNo > MAX_UL_BLOCKS){
235 PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight Cards!");
236 return 1;
237 }
238
239 if (param_gethex(Cmd, 1, bldata, 8)) {
240 PrintAndLog("Block data must include 8 HEX symbols");
241 return 1;
242 }
243
244 if (strchr(Cmd,'w') != 0 || strchr(Cmd,'W') != 0 ) {
245 chinese_card = TRUE;
246 }
247
248 if ( blockNo <= 3) {
249 if (!chinese_card){
250 PrintAndLog("Access Denied");
251 } else {
252 PrintAndLog("--specialblock no:%02x", blockNo);
253 PrintAndLog("--data: %s", sprint_hex(bldata, 4));
254 UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
255 memcpy(d.d.asBytes,bldata, 4);
256 SendCommand(&d);
257 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
258 uint8_t isOK = resp.arg[0] & 0xff;
259 PrintAndLog("isOk:%02x", isOK);
260 } else {
261 PrintAndLog("Command execute timeout");
262 }
263 }
264 } else {
265 PrintAndLog("--block no:%02x", blockNo);
266 PrintAndLog("--data: %s", sprint_hex(bldata, 4));
267 UsbCommand e = {CMD_MIFAREU_WRITEBL, {blockNo}};
268 memcpy(e.d.asBytes,bldata, 4);
269 SendCommand(&e);
270 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
271 uint8_t isOK = resp.arg[0] & 0xff;
272 PrintAndLog("isOk:%02x", isOK);
273 } else {
274 PrintAndLog("Command execute timeout");
275 }
276 }
277 return 0;
278 }
279
280 //
281 // Mifare Ultralight Read Single Block
282 //
283 int CmdHF14AMfURdBl(const char *Cmd){
284
285 UsbCommand resp;
286 uint8_t blockNo = -1;
287 char cmdp = param_getchar(Cmd, 0);
288
289 if (strlen(Cmd) < 1 || cmdp == 'h' || cmdp == 'H') {
290 PrintAndLog("Usage: hf mfu rdbl <block number>");
291 PrintAndLog(" sample: hfu mfu rdbl 0");
292 return 0;
293 }
294
295 blockNo = param_get8(Cmd, 0);
296
297 if (blockNo > MAX_UL_BLOCKS){
298 PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight");
299 return 1;
300 }
301
302 UsbCommand c = {CMD_MIFAREU_READBL, {blockNo}};
303 SendCommand(&c);
304
305
306 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
307 uint8_t isOK = resp.arg[0] & 0xff;
308 if (isOK) {
309 uint8_t *data = resp.d.asBytes;
310 PrintAndLog("Block: %0d (0x%02X) [ %s]", (int)blockNo, blockNo, sprint_hex(data, 4));
311 }
312 else {
313 PrintAndLog("Failed reading block: (%02x)", isOK);
314 }
315 } else {
316 PrintAndLog("Command execute time-out");
317 }
318
319 return 0;
320 }
321
322 int usage_hf_mfu_dump(void)
323 {
324 PrintAndLog("Reads all pages from Ultralight, Ultralight-C, Ultralight EV1");
325 PrintAndLog("and saves binary dump into the file `filename.bin` or `cardUID.bin`");
326 PrintAndLog("It autodetects card type.\n");
327 PrintAndLog("Usage: hf mfu dump <filename w/o .bin>");
328 PrintAndLog(" sample : hf mfu dump");
329 PrintAndLog(" : hf mfu dump myfile");
330 PrintAndLog(" : hf mfu dump 1 myfile");
331 return 0;
332 }
333 //
334 // Mifare Ultralight / Ultralight-C / Ultralight-EV1
335 // Read and Dump Card Contents, using auto detection of tag size.
336 //
337 // TODO: take a password to read UL-C / UL-EV1 tags.
338 int CmdHF14AMfUDump(const char *Cmd){
339
340 char cmdp = param_getchar(Cmd, 0);
341 if (cmdp == 'h' || cmdp == 'H')
342 return usage_hf_mfu_dump();
343
344 FILE *fout;
345 char filename[FILE_PATH_SIZE] = {0x00};
346 char *fnameptr = filename;
347 char *str = "Dumping Ultralight%s%s Card Data...";
348
349 uint8_t *lockbytes_t = NULL;
350 uint8_t lockbytes[2] = {0x00};
351 uint8_t *lockbytes_t2 = NULL;
352 uint8_t lockbytes2[2] = {0x00};
353 bool bit[16] = {0x00};
354 bool bit2[16] = {0x00};
355 uint8_t data[176] = {0x00};
356
357 int i = 0;
358 int Pages = 16;
359 bool tmplockbit = false;
360
361 TagTypeUL_t tagtype = GetHF14AMfU_Type();
362 if (tagtype == UL_ERROR) return -1;
363
364 if ( tagtype & UL ) {
365 Pages = 16;
366 PrintAndLog(str,"", (tagtype & MAGIC)?" (magic)":"" );
367 }
368 else if ( tagtype & UL_C ) {
369 Pages = 44;
370 PrintAndLog(str,"-C", (tagtype & MAGIC)?" (magic)":"" );
371 }
372 else if ( tagtype & UL_EV1_48 ) {
373 Pages = 18;
374 PrintAndLog(str," EV1_48","");
375 }
376 else if ( tagtype & UL_EV1_128 ) {
377 Pages = 32;
378 PrintAndLog(str," EV1_128","");
379 } else {
380 Pages = 16;
381 PrintAndLog("Dumping unknown Ultralight, using default values.");
382 }
383
384 UsbCommand c = {CMD_MIFAREU_READCARD, {0,Pages}};
385 SendCommand(&c);
386 UsbCommand resp;
387
388 if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
389 PrintAndLog("Command execute time-out");
390 return 0;
391 }
392
393 if (!resp.arg[0] ) {
394 PrintAndLog("Read command failed");
395 return 0;
396 }
397 memcpy(data, resp.d.asBytes, sizeof(data));
398
399 // Load lock bytes.
400 int j = 0;
401
402 lockbytes_t = data + 8;
403 lockbytes[0] = lockbytes_t[2];
404 lockbytes[1] = lockbytes_t[3];
405 for(j = 0; j < 16; j++){
406 bit[j] = lockbytes[j/8] & ( 1 <<(7-j%8));
407 }
408
409 // Load bottom lockbytes if available
410 if ( Pages == 44 ) {
411 lockbytes_t2 = data + (40*4);
412 lockbytes2[0] = lockbytes_t2[2];
413 lockbytes2[1] = lockbytes_t2[3];
414 for (j = 0; j < 16; j++) {
415 bit2[j] = lockbytes2[j/8] & ( 1 <<(7-j%8));
416 }
417 }
418
419 for (i = 0; i < Pages; ++i) {
420 if ( i < 3 ) {
421 PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
422 continue;
423 }
424 switch(i){
425 case 3: tmplockbit = bit[4]; break;
426 case 4: tmplockbit = bit[3]; break;
427 case 5: tmplockbit = bit[2]; break;
428 case 6: tmplockbit = bit[1]; break;
429 case 7: tmplockbit = bit[0]; break;
430 case 8: tmplockbit = bit[15]; break;
431 case 9: tmplockbit = bit[14]; break;
432 case 10: tmplockbit = bit[13]; break;
433 case 11: tmplockbit = bit[12]; break;
434 case 12: tmplockbit = bit[11]; break;
435 case 13: tmplockbit = bit[10]; break;
436 case 14: tmplockbit = bit[9]; break;
437 case 15: tmplockbit = bit[8]; break;
438 case 16:
439 case 17:
440 case 18:
441 case 19: tmplockbit = bit2[6]; break;
442 case 20:
443 case 21:
444 case 22:
445 case 23: tmplockbit = bit2[5]; break;
446 case 24:
447 case 25:
448 case 26:
449 case 27: tmplockbit = bit2[4]; break;
450 case 28:
451 case 29:
452 case 30:
453 case 31: tmplockbit = bit2[2]; break;
454 case 32:
455 case 33:
456 case 34:
457 case 35: tmplockbit = bit2[1]; break;
458 case 36:
459 case 37:
460 case 38:
461 case 39: tmplockbit = bit2[0]; break;
462 case 40: tmplockbit = bit2[12]; break;
463 case 41: tmplockbit = bit2[11]; break;
464 case 42: tmplockbit = bit2[10]; break; //auth0
465 case 43: tmplockbit = bit2[9]; break; //auth1
466 default: break;
467 }
468 PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),tmplockbit);
469 }
470
471 int len = param_getstr(Cmd,0,filename);
472 if (len > FILE_PATH_SIZE-5)
473 len = FILE_PATH_SIZE-5;
474
475 // user supplied filename?
476 if (len < 1) {
477 // UID = data 0-1-2 4-5-6-7 (skips a beat)
478 sprintf(fnameptr,"%02X%02X%02X%02X%02X%02X%02X.bin",
479 data[0],data[1], data[2], data[4],data[5],data[6], data[7]);
480 } else {
481 sprintf(fnameptr + len," .bin");
482 }
483
484 if ((fout = fopen(filename,"wb")) == NULL) {
485 PrintAndLog("Could not create file name %s", filename);
486 return 1;
487 }
488 fwrite( data, 1, Pages*4, fout );
489 fclose(fout);
490
491 PrintAndLog("Dumped %d pages, wrote %d bytes to %s", Pages, Pages*4, filename);
492 return 0;
493 }
494
495 // Needed to Authenticate to Ultralight C tags
496 void rol (uint8_t *data, const size_t len){
497 uint8_t first = data[0];
498 for (size_t i = 0; i < len-1; i++) {
499 data[i] = data[i+1];
500 }
501 data[len-1] = first;
502 }
503
504 //-------------------------------------------------------------------------------
505 // Ultralight C Methods
506 //-------------------------------------------------------------------------------
507
508 //
509 // Ultralight C Authentication Demo {currently uses hard-coded key}
510 //
511 int CmdHF14AMfucAuth(const char *Cmd){
512
513 uint8_t keyNo = 0;
514 bool errors = false;
515
516 char cmdp = param_getchar(Cmd, 0);
517
518 //Change key to user defined one
519 if (cmdp == 'k' || cmdp == 'K'){
520 keyNo = param_get8(Cmd, 1);
521 if(keyNo > 6)
522 errors = true;
523 }
524
525 if (cmdp == 'h' || cmdp == 'H')
526 errors = true;
527
528 if (errors) {
529 PrintAndLog("Usage: hf mfu cauth k <key number>");
530 PrintAndLog(" 0 (default): 3DES standard key");
531 PrintAndLog(" 1 : all 0x00 key");
532 PrintAndLog(" 2 : 0x00-0x0F key");
533 PrintAndLog(" 3 : nfc key");
534 PrintAndLog(" 4 : all 0x01 key");
535 PrintAndLog(" 5 : all 0xff key");
536 PrintAndLog(" 6 : 0x00-0xFF key");
537 PrintAndLog("\n sample : hf mfu cauth k");
538 PrintAndLog(" : hf mfu cauth k 3");
539 return 0;
540 }
541
542 uint8_t *key = default_3des_keys[keyNo];
543 if (try3DesAuthentication(key)>0)
544 PrintAndLog("Authentication successful. 3des key: %s",sprint_hex(key, 16));
545 else
546 PrintAndLog("Authentication failed");
547
548 return 0;
549 }
550
551 int try3DesAuthentication( uint8_t *key){
552
553 uint8_t blockNo = 0;
554 uint32_t cuid = 0;
555
556 des3_context ctx = { 0 };
557
558 uint8_t random_a[8] = { 1,1,1,1,1,1,1,1 };
559 uint8_t random_b[8] = { 0 };
560 uint8_t enc_random_b[8] = { 0 };
561 uint8_t rnd_ab[16] = { 0 };
562 uint8_t iv[8] = { 0 };
563
564 UsbCommand c = {CMD_MIFAREUC_AUTH1, {blockNo}};
565 SendCommand(&c);
566 UsbCommand resp;
567 if ( !WaitForResponseTimeout(CMD_ACK, &resp, 1500) ) return -1;
568 if ( !(resp.arg[0] & 0xff) ) return -2;
569
570 cuid = resp.arg[1];
571 memcpy(enc_random_b,resp.d.asBytes+1,8);
572
573 des3_set2key_dec(&ctx, key);
574 // context, mode, length, IV, input, output
575 des3_crypt_cbc( &ctx, DES_DECRYPT, sizeof(random_b), iv , enc_random_b , random_b);
576
577 rol(random_b,8);
578 memcpy(rnd_ab ,random_a,8);
579 memcpy(rnd_ab+8,random_b,8);
580
581 des3_set2key_enc(&ctx, key);
582 // context, mode, length, IV, input, output
583 des3_crypt_cbc(&ctx, DES_ENCRYPT, sizeof(rnd_ab), enc_random_b, rnd_ab, rnd_ab);
584
585 //Auth2
586 c.cmd = CMD_MIFAREUC_AUTH2;
587 c.arg[0] = cuid;
588 memcpy(c.d.asBytes, rnd_ab, 16);
589 SendCommand(&c);
590
591 if ( !WaitForResponseTimeout(CMD_ACK, &resp, 1500)) return -1;
592 if ( !(resp.arg[0] & 0xff)) return -2;
593
594 uint8_t enc_resp[8] = { 0 };
595 uint8_t resp_random_a[8] = { 0 };
596 memcpy(enc_resp, resp.d.asBytes+1, 8);
597
598 des3_set2key_dec(&ctx, key);
599 // context, mode, length, IV, input, output
600 des3_crypt_cbc( &ctx, DES_DECRYPT, 8, enc_random_b, enc_resp, resp_random_a);
601
602 if ( !memcmp(resp_random_a, random_a, 8))
603 return 1;
604 return 0;
605
606 //PrintAndLog(" RndA :%s", sprint_hex(random_a, 8));
607 //PrintAndLog(" enc(RndB) :%s", sprint_hex(enc_random_b, 8));
608 //PrintAndLog(" RndB :%s", sprint_hex(random_b, 8));
609 //PrintAndLog(" A+B :%s", sprint_hex(random_a_and_b, 16));
610 //PrintAndLog(" enc(A+B) :%s", sprint_hex(random_a_and_b, 16));
611 //PrintAndLog(" enc(RndA') :%s", sprint_hex(data2+1, 8));
612 }
613
614 /**
615 A test function to validate that the polarssl-function works the same
616 was as the openssl-implementation.
617 Commented out, since it requires openssl
618
619 int CmdTestDES(const char * cmd)
620 {
621 uint8_t key[16] = {0x00};
622
623 memcpy(key,key3_3des_data,16);
624 DES_cblock RndA, RndB;
625
626 PrintAndLog("----------OpenSSL DES implementation----------");
627 {
628 uint8_t e_RndB[8] = {0x00};
629 unsigned char RndARndB[16] = {0x00};
630
631 DES_cblock iv = { 0 };
632 DES_key_schedule ks1,ks2;
633 DES_cblock key1,key2;
634
635 memcpy(key,key3_3des_data,16);
636 memcpy(key1,key,8);
637 memcpy(key2,key+8,8);
638
639
640 DES_set_key((DES_cblock *)key1,&ks1);
641 DES_set_key((DES_cblock *)key2,&ks2);
642
643 DES_random_key(&RndA);
644 PrintAndLog(" RndA:%s",sprint_hex(RndA, 8));
645 PrintAndLog(" e_RndB:%s",sprint_hex(e_RndB, 8));
646 //void DES_ede2_cbc_encrypt(const unsigned char *input,
647 // unsigned char *output, long length, DES_key_schedule *ks1,
648 // DES_key_schedule *ks2, DES_cblock *ivec, int enc);
649 DES_ede2_cbc_encrypt(e_RndB,RndB,sizeof(e_RndB),&ks1,&ks2,&iv,0);
650
651 PrintAndLog(" RndB:%s",sprint_hex(RndB, 8));
652 rol(RndB,8);
653 memcpy(RndARndB,RndA,8);
654 memcpy(RndARndB+8,RndB,8);
655 PrintAndLog(" RA+B:%s",sprint_hex(RndARndB, 16));
656 DES_ede2_cbc_encrypt(RndARndB,RndARndB,sizeof(RndARndB),&ks1,&ks2,&e_RndB,1);
657 PrintAndLog("enc(RA+B):%s",sprint_hex(RndARndB, 16));
658
659 }
660 PrintAndLog("----------PolarSSL implementation----------");
661 {
662 uint8_t random_a[8] = { 0 };
663 uint8_t enc_random_a[8] = { 0 };
664 uint8_t random_b[8] = { 0 };
665 uint8_t enc_random_b[8] = { 0 };
666 uint8_t random_a_and_b[16] = { 0 };
667 des3_context ctx = { 0 };
668
669 memcpy(random_a, RndA,8);
670
671 uint8_t output[8] = { 0 };
672 uint8_t iv[8] = { 0 };
673
674 PrintAndLog(" RndA :%s",sprint_hex(random_a, 8));
675 PrintAndLog(" e_RndB:%s",sprint_hex(enc_random_b, 8));
676
677 des3_set2key_dec(&ctx, key);
678
679 des3_crypt_cbc(&ctx // des3_context *ctx
680 , DES_DECRYPT // int mode
681 , sizeof(random_b) // size_t length
682 , iv // unsigned char iv[8]
683 , enc_random_b // const unsigned char *input
684 , random_b // unsigned char *output
685 );
686
687 PrintAndLog(" RndB:%s",sprint_hex(random_b, 8));
688
689 rol(random_b,8);
690 memcpy(random_a_and_b ,random_a,8);
691 memcpy(random_a_and_b+8,random_b,8);
692
693 PrintAndLog(" RA+B:%s",sprint_hex(random_a_and_b, 16));
694
695 des3_set2key_enc(&ctx, key);
696
697 des3_crypt_cbc(&ctx // des3_context *ctx
698 , DES_ENCRYPT // int mode
699 , sizeof(random_a_and_b) // size_t length
700 , enc_random_b // unsigned char iv[8]
701 , random_a_and_b // const unsigned char *input
702 , random_a_and_b // unsigned char *output
703 );
704
705 PrintAndLog("enc(RA+B):%s",sprint_hex(random_a_and_b, 16));
706 }
707 return 0;
708 }
709 **/
710 //
711 // Ultralight C Read Single Block
712 //
713 int CmdHF14AMfUCRdBl(const char *Cmd)
714 {
715 UsbCommand resp;
716 bool hasPwd = FALSE;
717 uint8_t blockNo = -1;
718 unsigned char key[16];
719 char cmdp = param_getchar(Cmd, 0);
720
721 if (strlen(Cmd) < 1 || cmdp == 'h' || cmdp == 'H') {
722 PrintAndLog("Usage: hf mfu crdbl <block number> <password>");
723 PrintAndLog("");
724 PrintAndLog("sample: hf mfu crdbl 0");
725 PrintAndLog(" hf mfu crdbl 0 00112233445566778899AABBCCDDEEFF");
726 return 0;
727 }
728
729 blockNo = param_get8(Cmd, 0);
730 if (blockNo < 0) {
731 PrintAndLog("Wrong block number");
732 return 1;
733 }
734
735 if (blockNo > MAX_ULC_BLOCKS ){
736 PrintAndLog("Error: Maximum number of blocks is 47 for Ultralight-C");
737 return 1;
738 }
739
740 // key
741 if ( strlen(Cmd) > 3){
742 if (param_gethex(Cmd, 1, key, 32)) {
743 PrintAndLog("Key must include %d HEX symbols", 32);
744 return 1;
745 } else {
746 hasPwd = TRUE;
747 }
748 }
749
750 //Read Block
751 UsbCommand c = {CMD_MIFAREU_READBL, {blockNo}};
752 if ( hasPwd ) {
753 c.arg[1] = 1;
754 memcpy(c.d.asBytes,key,16);
755 }
756 SendCommand(&c);
757
758 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
759 uint8_t isOK = resp.arg[0] & 0xff;
760 if (isOK) {
761 uint8_t *data = resp.d.asBytes;
762 PrintAndLog("Block: %0d (0x%02X) [ %s]", (int)blockNo, blockNo, sprint_hex(data, 4));
763 }
764 else {
765 PrintAndLog("Failed reading block: (%02x)", isOK);
766 }
767 } else {
768 PrintAndLog("Command execute time-out");
769 }
770 return 0;
771 }
772
773 //
774 // Mifare Ultralight C Write Single Block
775 //
776 int CmdHF14AMfUCWrBl(const char *Cmd){
777
778 uint8_t blockNo = -1;
779 bool chinese_card = FALSE;
780 uint8_t bldata[16] = {0x00};
781 UsbCommand resp;
782
783 char cmdp = param_getchar(Cmd, 0);
784
785 if (strlen(Cmd) < 3 || cmdp == 'h' || cmdp == 'H') {
786 PrintAndLog("Usage: hf mfu cwrbl <block number> <block data (8 hex symbols)> [w]");
787 PrintAndLog(" [block number]");
788 PrintAndLog(" [block data] - (8 hex symbols)");
789 PrintAndLog(" [w] - Chinese magic ultralight tag");
790 PrintAndLog("");
791 PrintAndLog(" sample: hf mfu cwrbl 0 01020304");
792 PrintAndLog("");
793 return 0;
794 }
795
796 blockNo = param_get8(Cmd, 0);
797 if (blockNo > MAX_ULC_BLOCKS ){
798 PrintAndLog("Error: Maximum number of blocks is 47 for Ultralight-C Cards!");
799 return 1;
800 }
801
802 if (param_gethex(Cmd, 1, bldata, 8)) {
803 PrintAndLog("Block data must include 8 HEX symbols");
804 return 1;
805 }
806
807 if (strchr(Cmd,'w') != 0 || strchr(Cmd,'W') != 0 ) {
808 chinese_card = TRUE;
809 }
810
811 if ( blockNo <= 3 ) {
812 if (!chinese_card){
813 PrintAndLog("Access Denied");
814 return 1;
815 } else {
816 PrintAndLog("--Special block no: 0x%02x", blockNo);
817 PrintAndLog("--Data: %s", sprint_hex(bldata, 4));
818 UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
819 memcpy(d.d.asBytes,bldata, 4);
820 SendCommand(&d);
821 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
822 uint8_t isOK = resp.arg[0] & 0xff;
823 PrintAndLog("isOk:%02x", isOK);
824 } else {
825 PrintAndLog("Command execute timeout");
826 return 1;
827 }
828 }
829 } else {
830 PrintAndLog("--Block no : 0x%02x", blockNo);
831 PrintAndLog("--Data: %s", sprint_hex(bldata, 4));
832 UsbCommand e = {CMD_MIFAREU_WRITEBL, {blockNo}};
833 memcpy(e.d.asBytes,bldata, 4);
834 SendCommand(&e);
835 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
836 uint8_t isOK = resp.arg[0] & 0xff;
837 PrintAndLog("isOk : %02x", isOK);
838 } else {
839 PrintAndLog("Command execute timeout");
840 return 1;
841 }
842 }
843 return 0;
844 }
845
846 //
847 // Mifare Ultralight C - Set password
848 //
849 int CmdHF14AMfucSetPwd(const char *Cmd){
850
851 uint8_t pwd[16] = {0x00};
852
853 char cmdp = param_getchar(Cmd, 0);
854
855 if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') {
856 PrintAndLog("Usage: hf mfu setpwd <password (32 hex symbols)>");
857 PrintAndLog(" [password] - (32 hex symbols)");
858 PrintAndLog("");
859 PrintAndLog("sample: hf mfu setpwd 000102030405060708090a0b0c0d0e0f");
860 PrintAndLog("");
861 return 0;
862 }
863
864 if (param_gethex(Cmd, 0, pwd, 32)) {
865 PrintAndLog("Password must include 32 HEX symbols");
866 return 1;
867 }
868
869 UsbCommand c = {CMD_MIFAREUC_SETPWD};
870 memcpy( c.d.asBytes, pwd, 16);
871 SendCommand(&c);
872
873 UsbCommand resp;
874
875 if (WaitForResponseTimeout(CMD_ACK,&resp,1500) ) {
876 if ( (resp.arg[0] & 0xff) == 1)
877 PrintAndLog("Ultralight-C new password: %s", sprint_hex(pwd,16));
878 else{
879 PrintAndLog("Failed writing at block %d", resp.arg[1] & 0xff);
880 return 1;
881 }
882 }
883 else {
884 PrintAndLog("command execution time out");
885 return 1;
886 }
887
888 return 0;
889 }
890
891 //
892 // Magic UL / UL-C tags - Set UID
893 //
894 int CmdHF14AMfucSetUid(const char *Cmd){
895
896 UsbCommand c;
897 UsbCommand resp;
898 uint8_t uid[7] = {0x00};
899 char cmdp = param_getchar(Cmd, 0);
900
901 if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') {
902 PrintAndLog("Usage: hf mfu setuid <uid (14 hex symbols)>");
903 PrintAndLog(" [uid] - (14 hex symbols)");
904 PrintAndLog("\nThis only works for Magic Ultralight tags.");
905 PrintAndLog("");
906 PrintAndLog("sample: hf mfu setuid 11223344556677");
907 PrintAndLog("");
908 return 0;
909 }
910
911 if (param_gethex(Cmd, 0, uid, 14)) {
912 PrintAndLog("UID must include 14 HEX symbols");
913 return 1;
914 }
915
916 // read block2.
917 c.cmd = CMD_MIFAREU_READBL;
918 c.arg[0] = 2;
919 SendCommand(&c);
920 if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
921 PrintAndLog("Command execute timeout");
922 return 2;
923 }
924
925 // save old block2.
926 uint8_t oldblock2[4] = {0x00};
927 memcpy(resp.d.asBytes, oldblock2, 4);
928
929 // block 0.
930 c.cmd = CMD_MIFAREU_WRITEBL;
931 c.arg[0] = 0;
932 c.d.asBytes[0] = uid[0];
933 c.d.asBytes[1] = uid[1];
934 c.d.asBytes[2] = uid[2];
935 c.d.asBytes[3] = 0x88 ^ uid[0] ^ uid[1] ^ uid[2];
936 SendCommand(&c);
937 if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
938 PrintAndLog("Command execute timeout");
939 return 3;
940 }
941
942 // block 1.
943 c.arg[0] = 1;
944 c.d.asBytes[0] = uid[3];
945 c.d.asBytes[1] = uid[4];
946 c.d.asBytes[2] = uid[5];
947 c.d.asBytes[3] = uid[6];
948 SendCommand(&c);
949 if (!WaitForResponseTimeout(CMD_ACK,&resp,1500) ) {
950 PrintAndLog("Command execute timeout");
951 return 4;
952 }
953
954 // block 2.
955 c.arg[0] = 2;
956 c.d.asBytes[0] = uid[3] ^ uid[4] ^ uid[5] ^ uid[6];
957 c.d.asBytes[1] = oldblock2[1];
958 c.d.asBytes[2] = oldblock2[2];
959 c.d.asBytes[3] = oldblock2[3];
960 SendCommand(&c);
961 if (!WaitForResponseTimeout(CMD_ACK,&resp,1500) ) {
962 PrintAndLog("Command execute timeout");
963 return 5;
964 }
965
966 return 0;
967 }
968
969 int CmdHF14AMfuGenDiverseKeys(const char *Cmd){
970
971 uint8_t iv[8] = { 0x00 };
972 uint8_t block = 0x07;
973
974 // UL-EV1
975 //04 57 b6 e2 05 3f 80 UID
976 //4a f8 4b 19 PWD
977 uint8_t uid[] = { 0xF4,0xEA, 0x54, 0x8E };
978 uint8_t mifarekeyA[] = { 0xA0,0xA1,0xA2,0xA3,0xA4,0xA5 };
979 uint8_t mifarekeyB[] = { 0xB0,0xB1,0xB2,0xB3,0xB4,0xB5 };
980 uint8_t dkeyA[8] = { 0x00 };
981 uint8_t dkeyB[8] = { 0x00 };
982
983 uint8_t masterkey[] = { 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xdd,0xee,0xff };
984
985 uint8_t mix[8] = { 0x00 };
986 uint8_t divkey[8] = { 0x00 };
987
988 memcpy(mix, mifarekeyA, 4);
989
990 mix[4] = mifarekeyA[4] ^ uid[0];
991 mix[5] = mifarekeyA[5] ^ uid[1];
992 mix[6] = block ^ uid[2];
993 mix[7] = uid[3];
994
995 des3_context ctx = { 0x00 };
996 des3_set2key_enc(&ctx, masterkey);
997
998 des3_crypt_cbc(&ctx // des3_context
999 , DES_ENCRYPT // int mode
1000 , sizeof(mix) // length
1001 , iv // iv[8]
1002 , mix // input
1003 , divkey // output
1004 );
1005
1006 PrintAndLog("3DES version");
1007 PrintAndLog("Masterkey :\t %s", sprint_hex(masterkey,sizeof(masterkey)));
1008 PrintAndLog("UID :\t %s", sprint_hex(uid, sizeof(uid)));
1009 PrintAndLog("Sector :\t %0d", block);
1010 PrintAndLog("Mifare key :\t %s", sprint_hex(mifarekeyA, sizeof(mifarekeyA)));
1011 PrintAndLog("Message :\t %s", sprint_hex(mix, sizeof(mix)));
1012 PrintAndLog("Diversified key: %s", sprint_hex(divkey+1, 6));
1013
1014 PrintAndLog("\n DES version");
1015
1016 for (int i=0; i < sizeof(mifarekeyA); ++i){
1017 dkeyA[i] = (mifarekeyA[i] << 1) & 0xff;
1018 dkeyA[6] |= ((mifarekeyA[i] >> 7) & 1) << (i+1);
1019 }
1020
1021 for (int i=0; i < sizeof(mifarekeyB); ++i){
1022 dkeyB[1] |= ((mifarekeyB[i] >> 7) & 1) << (i+1);
1023 dkeyB[2+i] = (mifarekeyB[i] << 1) & 0xff;
1024 }
1025
1026 uint8_t zeros[8] = {0x00};
1027 uint8_t newpwd[8] = {0x00};
1028 uint8_t dmkey[24] = {0x00};
1029 memcpy(dmkey, dkeyA, 8);
1030 memcpy(dmkey+8, dkeyB, 8);
1031 memcpy(dmkey+16, dkeyA, 8);
1032 memset(iv, 0x00, 8);
1033
1034 des3_set3key_enc(&ctx, dmkey);
1035
1036 des3_crypt_cbc(&ctx // des3_context
1037 , DES_ENCRYPT // int mode
1038 , sizeof(newpwd) // length
1039 , iv // iv[8]
1040 , zeros // input
1041 , newpwd // output
1042 );
1043
1044 PrintAndLog("Mifare dkeyA :\t %s", sprint_hex(dkeyA, sizeof(dkeyA)));
1045 PrintAndLog("Mifare dkeyB :\t %s", sprint_hex(dkeyB, sizeof(dkeyB)));
1046 PrintAndLog("Mifare ABA :\t %s", sprint_hex(dmkey, sizeof(dmkey)));
1047 PrintAndLog("Mifare Pwd :\t %s", sprint_hex(newpwd, sizeof(newpwd)));
1048
1049 return 0;
1050 }
1051
1052 // static uint8_t * diversify_key(uint8_t * key){
1053
1054 // for(int i=0; i<16; i++){
1055 // if(i<=6) key[i]^=cuid[i];
1056 // if(i>6) key[i]^=cuid[i%7];
1057 // }
1058 // return key;
1059 // }
1060
1061 // static void GenerateUIDe( uint8_t *uid, uint8_t len){
1062 // for (int i=0; i<len; ++i){
1063
1064 // }
1065 // return;
1066 // }
1067
1068 //------------------------------------
1069 // Menu Stuff
1070 //------------------------------------
1071 static command_t CommandTable[] =
1072 {
1073 {"help", CmdHelp, 1, "This help"},
1074 {"dbg", CmdHF14AMfDbg, 0, "Set default debug mode"},
1075 {"info", CmdHF14AMfUInfo, 0, "Tag information"},
1076 {"dump", CmdHF14AMfUDump, 0, "Dump Ultralight / Ultralight-C tag to binary file"},
1077 {"rdbl", CmdHF14AMfURdBl, 0, "Read block - Ultralight"},
1078 {"wrbl", CmdHF14AMfUWrBl, 0, "Write block - Ultralight"},
1079 {"crdbl", CmdHF14AMfUCRdBl, 0, "Read block - Ultralight C"},
1080 {"cwrbl", CmdHF14AMfUCWrBl, 0, "Write block - Ultralight C"},
1081 {"cauth", CmdHF14AMfucAuth, 0, "Authentication - Ultralight C"},
1082 {"setpwd", CmdHF14AMfucSetPwd, 1, "Set 3des password - Ultralight-C"},
1083 {"setuid", CmdHF14AMfucSetUid, 1, "Set UID - MAGIC tags only"},
1084 {"gen", CmdHF14AMfuGenDiverseKeys , 1, "Generate 3des mifare diversified keys"},
1085 {NULL, NULL, 0, NULL}
1086 };
1087
1088 int CmdHFMFUltra(const char *Cmd){
1089 WaitForResponseTimeout(CMD_ACK,NULL,100);
1090 CmdsParse(CommandTable, Cmd);
1091 return 0;
1092 }
1093
1094 int CmdHelp(const char *Cmd){
1095 CmdsHelp(CommandTable);
1096 return 0;
1097 }
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