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1 //-----------------------------------------------------------------------------
2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch
3 // Copyright (C) 2011 Gerhard de Koning Gans
4 // Copyright (C) 2014 Midnitesnake & Andy Davies & Martin Holst Swende
5 //
6 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
7 // at your option, any later version. See the LICENSE.txt file for the text of
8 // the license.
9 //-----------------------------------------------------------------------------
10 // High frequency iClass commands
11 //-----------------------------------------------------------------------------
12
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <string.h>
16 #include <sys/stat.h>
17 #include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type
18 #include "data.h"
19 #include "proxmark3.h"
20 #include "ui.h"
21 #include "cmdparser.h"
22 #include "cmdhficlass.h"
23 #include "common.h"
24 #include "util.h"
25 #include "cmdmain.h"
26 #include "loclass/des.h"
27 #include "loclass/cipherutils.h"
28 #include "loclass/cipher.h"
29 #include "loclass/ikeys.h"
30 #include "loclass/elite_crack.h"
31 #include "loclass/fileutils.h"
32 #include "protocols.h"
33 #include "usb_cmd.h"
34
35 static int CmdHelp(const char *Cmd);
36
37 int xorbits_8(uint8_t val)
38 {
39 uint8_t res = val ^ (val >> 1); //1st pass
40 res = res ^ (res >> 1); // 2nd pass
41 res = res ^ (res >> 2); // 3rd pass
42 res = res ^ (res >> 4); // 4th pass
43 return res & 1;
44 }
45
46 int CmdHFiClassList(const char *Cmd)
47 {
48 PrintAndLog("Deprecated command, use 'hf list iclass' instead");
49 return 0;
50 }
51
52 int CmdHFiClassSnoop(const char *Cmd)
53 {
54 UsbCommand c = {CMD_SNOOP_ICLASS};
55 SendCommand(&c);
56 return 0;
57 }
58 int usage_hf_iclass_sim()
59 {
60 PrintAndLog("Usage: hf iclass sim <option> [CSN]");
61 PrintAndLog(" options");
62 PrintAndLog(" 0 <CSN> simulate the given CSN");
63 PrintAndLog(" 1 simulate default CSN");
64 PrintAndLog(" 2 Reader-attack, gather reader responses to extract elite key");
65 PrintAndLog(" 3 Full simulation using emulator memory (see 'hf iclass eload')");
66 PrintAndLog(" example: hf iclass sim 0 031FEC8AF7FF12E0");
67 PrintAndLog(" example: hf iclass sim 2");
68 PrintAndLog(" example: hf iclass eload 'tagdump.bin'");
69 PrintAndLog(" hf iclass sim 3");
70 return 0;
71 }
72
73 #define NUM_CSNS 15
74 int CmdHFiClassSim(const char *Cmd)
75 {
76 uint8_t simType = 0;
77 uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0};
78
79 if (strlen(Cmd)<1) {
80 return usage_hf_iclass_sim();
81 }
82 simType = param_get8ex(Cmd, 0, 0, 10);
83
84 if(simType == 0)
85 {
86 if (param_gethex(Cmd, 1, CSN, 16)) {
87 PrintAndLog("A CSN should consist of 16 HEX symbols");
88 return usage_hf_iclass_sim();
89 }
90
91 PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8));
92 }
93 if(simType > 3)
94 {
95 PrintAndLog("Undefined simptype %d", simType);
96 return usage_hf_iclass_sim();
97 }
98
99 uint8_t numberOfCSNs=0;
100 if(simType == 2)
101 {
102 UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,NUM_CSNS}};
103 UsbCommand resp = {0};
104
105 uint8_t csns[8*NUM_CSNS] = {
106 0x00, 0x0B, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0,
107 0x00, 0x04, 0x0E, 0x08, 0xF7, 0xFF, 0x12, 0xE0,
108 0x00, 0x09, 0x0D, 0x05, 0xF7, 0xFF, 0x12, 0xE0,
109 0x00, 0x0A, 0x0C, 0x06, 0xF7, 0xFF, 0x12, 0xE0,
110 0x00, 0x0F, 0x0B, 0x03, 0xF7, 0xFF, 0x12, 0xE0,
111 0x00, 0x08, 0x0A, 0x0C, 0xF7, 0xFF, 0x12, 0xE0,
112 0x00, 0x0D, 0x09, 0x09, 0xF7, 0xFF, 0x12, 0xE0,
113 0x00, 0x0E, 0x08, 0x0A, 0xF7, 0xFF, 0x12, 0xE0,
114 0x00, 0x03, 0x07, 0x17, 0xF7, 0xFF, 0x12, 0xE0,
115 0x00, 0x3C, 0x06, 0xE0, 0xF7, 0xFF, 0x12, 0xE0,
116 0x00, 0x01, 0x05, 0x1D, 0xF7, 0xFF, 0x12, 0xE0,
117 0x00, 0x02, 0x04, 0x1E, 0xF7, 0xFF, 0x12, 0xE0,
118 0x00, 0x07, 0x03, 0x1B, 0xF7, 0xFF, 0x12, 0xE0,
119 0x00, 0x00, 0x02, 0x24, 0xF7, 0xFF, 0x12, 0xE0,
120 0x00, 0x05, 0x01, 0x21, 0xF7, 0xFF, 0x12, 0xE0 };
121
122 memcpy(c.d.asBytes, csns, 8*NUM_CSNS);
123
124 SendCommand(&c);
125 if (!WaitForResponseTimeout(CMD_ACK, &resp, -1)) {
126 PrintAndLog("Command timed out");
127 return 0;
128 }
129
130 uint8_t num_mac_responses = resp.arg[1];
131 PrintAndLog("Mac responses: %d MACs obtained (should be %d)", num_mac_responses,NUM_CSNS);
132
133 size_t datalen = NUM_CSNS*24;
134 /*
135 * Now, time to dump to file. We'll use this format:
136 * <8-byte CSN><8-byte CC><4 byte NR><4 byte MAC>....
137 * So, it should wind up as
138 * 8 * 24 bytes.
139 *
140 * The returndata from the pm3 is on the following format
141 * <4 byte NR><4 byte MAC>
142 * CC are all zeroes, CSN is the same as was sent in
143 **/
144 void* dump = malloc(datalen);
145 memset(dump,0,datalen);//<-- Need zeroes for the CC-field
146 uint8_t i = 0;
147 for(i = 0 ; i < NUM_CSNS ; i++)
148 {
149 memcpy(dump+i*24, csns+i*8,8); //CSN
150 //8 zero bytes here...
151 //Then comes NR_MAC (eight bytes from the response)
152 memcpy(dump+i*24+16,resp.d.asBytes+i*8,8);
153
154 }
155 /** Now, save to dumpfile **/
156 saveFile("iclass_mac_attack", "bin", dump,datalen);
157 free(dump);
158 }else
159 {
160 UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,numberOfCSNs}};
161 memcpy(c.d.asBytes, CSN, 8);
162 SendCommand(&c);
163 }
164
165 return 0;
166 }
167
168 int HFiClassReader(const char *Cmd, bool loop, bool verbose)
169 {
170 bool tagFound = false;
171 UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_CSN|
172 FLAG_ICLASS_READER_CONF|FLAG_ICLASS_READER_AA}};
173 if (!loop) c.arg[0] |= FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_ONE_TRY;
174 SendCommand(&c);
175 UsbCommand resp;
176 while(!ukbhit()){
177 if (WaitForResponseTimeout(CMD_ACK,&resp, 4500)) {
178 uint8_t readStatus = resp.arg[0] & 0xff;
179 uint8_t *data = resp.d.asBytes;
180
181 if (verbose)
182 PrintAndLog("Readstatus:%02x", readStatus);
183 if( readStatus == 0){
184 //Aborted
185 if (verbose) PrintAndLog("Quitting...");
186 return 0;
187 }
188 if( readStatus & FLAG_ICLASS_READER_CSN){
189 PrintAndLog("CSN: %s",sprint_hex(data,8));
190 tagFound = true;
191 }
192 if( readStatus & FLAG_ICLASS_READER_CC) PrintAndLog("CC: %s",sprint_hex(data+16,8));
193 if( readStatus & FLAG_ICLASS_READER_CONF){
194 printIclassDumpInfo(data);
195 }
196 if (tagFound && !loop) return 1;
197 } else {
198 if (verbose) PrintAndLog("Command execute timeout");
199 }
200 if (!loop) break;
201 }
202 return 0;
203
204 }
205
206 int CmdHFiClassReader(const char *Cmd)
207 {
208 return HFiClassReader(Cmd, true, true);
209 }
210
211 int CmdHFiClassReader_Replay(const char *Cmd)
212 {
213 uint8_t readerType = 0;
214 uint8_t MAC[4]={0x00, 0x00, 0x00, 0x00};
215
216 if (strlen(Cmd)<1) {
217 PrintAndLog("Usage: hf iclass replay <MAC>");
218 PrintAndLog(" sample: hf iclass replay 00112233");
219 return 0;
220 }
221
222 if (param_gethex(Cmd, 0, MAC, 8)) {
223 PrintAndLog("MAC must include 8 HEX symbols");
224 return 1;
225 }
226
227 UsbCommand c = {CMD_READER_ICLASS_REPLAY, {readerType}};
228 memcpy(c.d.asBytes, MAC, 4);
229 SendCommand(&c);
230
231 return 0;
232 }
233
234 int CmdHFiClassReader_Dump(const char *Cmd)
235 {
236 uint8_t readerType = 0;
237 uint8_t MAC[4]={0x00,0x00,0x00,0x00};
238 uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
239 uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
240 uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
241 //uint8_t CC_temp[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
242 uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
243 uint8_t keytable[128] = {0};
244 int elite = 0;
245 uint8_t *used_key;
246 int i;
247 if (strlen(Cmd)<1)
248 {
249 PrintAndLog("Usage: hf iclass dump <Key> [e]");
250 PrintAndLog(" Key - A 16 byte master key");
251 PrintAndLog(" e - If 'e' is specified, the key is interpreted as the 16 byte");
252 PrintAndLog(" Custom Key (KCus), which can be obtained via reader-attack");
253 PrintAndLog(" See 'hf iclass sim 2'. This key should be on iclass-format");
254 PrintAndLog(" sample: hf iclass dump 0011223344556677");
255
256
257 return 0;
258 }
259
260 if (param_gethex(Cmd, 0, KEY, 16))
261 {
262 PrintAndLog("KEY must include 16 HEX symbols");
263 return 1;
264 }
265
266 if (param_getchar(Cmd, 1) == 'e')
267 {
268 PrintAndLog("Elite switch on");
269 elite = 1;
270
271 //calc h2
272 hash2(KEY, keytable);
273 printarr_human_readable("keytable", keytable, 128);
274
275 }
276
277 UsbCommand resp;
278 uint8_t key_sel[8] = {0};
279 uint8_t key_sel_p[8] = { 0 };
280
281 UsbCommand c = {CMD_READER_ICLASS, {0}};
282 c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE| FLAG_ICLASS_READER_CC;
283 SendCommand(&c);
284
285
286
287 if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
288 {
289 PrintAndLog("Command execute timeout");
290 return 0;
291 }
292
293 uint8_t isOK = resp.arg[0] & 0xff;
294 uint8_t * data = resp.d.asBytes;
295
296 memcpy(CSN,data,8);
297 memcpy(CCNR,data+16,8);
298
299 PrintAndLog("isOk:%02x", isOK);
300
301 if(isOK > 0)
302 {
303 PrintAndLog("CSN: %s",sprint_hex(CSN,8));
304 }
305 if(isOK <= 1){
306 PrintAndLog("Failed to obtain CC! Aborting");
307 return 0;
308 }
309 //Status 2 or higher
310
311 if(elite)
312 {
313 //Get the key index (hash1)
314 uint8_t key_index[8] = {0};
315
316 hash1(CSN, key_index);
317 printvar("hash1", key_index,8);
318 for(i = 0; i < 8 ; i++)
319 key_sel[i] = keytable[key_index[i]] & 0xFF;
320 PrintAndLog("Pre-fortified 'permuted' HS key that would be needed by an iclass reader to talk to above CSN:");
321 printvar("k_sel", key_sel,8);
322 //Permute from iclass format to standard format
323 permutekey_rev(key_sel,key_sel_p);
324 used_key = key_sel_p;
325 }else{
326 used_key = KEY;
327 }
328
329 PrintAndLog("Pre-fortified key that would be needed by the OmniKey reader to talk to above CSN:");
330 printvar("Used key",used_key,8);
331 diversifyKey(CSN,used_key, div_key);
332 PrintAndLog("Hash0, a.k.a diversified key, that is computed using Ksel and stored in the card (Block 3):");
333 printvar("Div key", div_key, 8);
334 printvar("CC_NR:",CCNR,12);
335 doMAC(CCNR,div_key, MAC);
336 printvar("MAC", MAC, 4);
337
338 uint8_t iclass_data[32000] = {0};
339 uint32_t iclass_datalen = 0;
340 uint32_t iclass_blocksFailed = 0;//Set to 1 if dump was incomplete
341
342 UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}};
343 memcpy(d.d.asBytes, MAC, 4);
344 clearCommandBuffer();
345 SendCommand(&d);
346 PrintAndLog("Waiting for device to dump data. Press button on device and key on keyboard to abort...");
347 while (true) {
348 printf(".");
349 if (ukbhit()) {
350 getchar();
351 printf("\naborted via keyboard!\n");
352 break;
353 }
354 if(WaitForResponseTimeout(CMD_ACK,&resp,4500))
355 {
356 uint32_t dataLength = resp.arg[0];
357 iclass_blocksFailed |= resp.arg[1];
358 if(dataLength > 0)
359 {
360 PrintAndLog("Got %d bytes data (total so far %d)" ,dataLength,iclass_datalen);
361 memcpy(iclass_data+iclass_datalen, resp.d.asBytes,dataLength);
362 iclass_datalen += dataLength;
363 }else
364 {//Last transfer, datalength 0 means the dump is finished
365 PrintAndLog("Dumped %d bytes of data from tag. ", iclass_datalen);
366 if(iclass_blocksFailed)
367 {
368 PrintAndLog("OBS! Some blocks failed to be dumped correctly!");
369 }
370 if(iclass_datalen > 0)
371 {
372 char filename[100] = {0};
373 //create a preferred filename
374 snprintf(filename, 100,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x",
375 CSN[0],CSN[1],CSN[2],CSN[3],
376 CSN[4],CSN[5],CSN[6],CSN[7]);
377 //Place the div_key in block 3
378 memcpy(iclass_data+(3*8), div_key, 8);
379 saveFile(filename,"bin",iclass_data, iclass_datalen );
380 }
381 //Aaaand we're finished
382 return 0;
383 }
384 }
385 }
386
387
388 return 0;
389 }
390
391 int hf_iclass_eload_usage()
392 {
393 PrintAndLog("Loads iclass tag-dump into emulator memory on device");
394 PrintAndLog("Usage: hf iclass eload f <filename>");
395 PrintAndLog("");
396 PrintAndLog("Example: hf iclass eload f iclass_tagdump-aa162d30f8ff12f1.bin");
397 return 0;
398
399 }
400
401 int iclassEmlSetMem(uint8_t *data, int blockNum, int blocksCount) {
402 UsbCommand c = {CMD_MIFARE_EML_MEMSET, {blockNum, blocksCount, 0}};
403 memcpy(c.d.asBytes, data, blocksCount * 16);
404 SendCommand(&c);
405 return 0;
406 }
407 int CmdHFiClassELoad(const char *Cmd)
408 {
409
410 char opt = param_getchar(Cmd, 0);
411 if (strlen(Cmd)<1 || opt == 'h')
412 return hf_iclass_eload_usage();
413
414 //File handling and reading
415 FILE *f;
416 char filename[FILE_PATH_SIZE];
417 if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0)
418 {
419 f = fopen(filename, "rb");
420 }else{
421 return hf_iclass_eload_usage();
422 }
423
424 if(!f) {
425 PrintAndLog("Failed to read from file '%s'", filename);
426 return 1;
427 }
428
429 fseek(f, 0, SEEK_END);
430 long fsize = ftell(f);
431 fseek(f, 0, SEEK_SET);
432
433 uint8_t *dump = malloc(fsize);
434
435
436 size_t bytes_read = fread(dump, 1, fsize, f);
437 fclose(f);
438
439 printIclassDumpInfo(dump);
440 //Validate
441
442 if (bytes_read < fsize)
443 {
444 prnlog("Error, could only read %d bytes (should be %d)",bytes_read, fsize );
445 free(dump);
446 return 1;
447 }
448 //Send to device
449 uint32_t bytes_sent = 0;
450 uint32_t bytes_remaining = bytes_read;
451
452 while(bytes_remaining > 0){
453 uint32_t bytes_in_packet = MIN(USB_CMD_DATA_SIZE, bytes_remaining);
454 UsbCommand c = {CMD_ICLASS_EML_MEMSET, {bytes_sent,bytes_in_packet,0}};
455 memcpy(c.d.asBytes, dump, bytes_in_packet);
456 SendCommand(&c);
457 bytes_remaining -= bytes_in_packet;
458 bytes_sent += bytes_in_packet;
459 }
460 free(dump);
461 PrintAndLog("Sent %d bytes of data to device emulator memory", bytes_sent);
462 return 0;
463 }
464
465 int usage_hf_iclass_decrypt()
466 {
467 PrintAndLog("Usage: hf iclass decrypt f <tagdump> o ");
468 PrintAndLog("");
469 PrintAndLog("OBS! In order to use this function, the file 'iclass_decryptionkey.bin' must reside");
470 PrintAndLog("in the working directory. The file should be 16 bytes binary data");
471 PrintAndLog("");
472 PrintAndLog("example: hf iclass decrypt f tagdump_12312342343.bin");
473 PrintAndLog("");
474 PrintAndLog("OBS! This is pretty stupid implementation, it tries to decrypt every block after block 6. ");
475 PrintAndLog("Correct behaviour would be to decrypt only the application areas where the key is valid,");
476 PrintAndLog("which is defined by the configuration block.");
477 return 1;
478 }
479
480 int readKeyfile(const char *filename, size_t len, uint8_t* buffer)
481 {
482 FILE *f = fopen(filename, "rb");
483 if(!f) {
484 PrintAndLog("Failed to read from file '%s'", filename);
485 return 1;
486 }
487 fseek(f, 0, SEEK_END);
488 long fsize = ftell(f);
489 fseek(f, 0, SEEK_SET);
490 size_t bytes_read = fread(buffer, 1, len, f);
491 fclose(f);
492 if(fsize != len)
493 {
494 PrintAndLog("Warning, file size is %d, expected %d", fsize, len);
495 return 1;
496 }
497 if(bytes_read != len)
498 {
499 PrintAndLog("Warning, could only read %d bytes, expected %d" ,bytes_read, len);
500 return 1;
501 }
502 return 0;
503 }
504
505 int CmdHFiClassDecrypt(const char *Cmd)
506 {
507 uint8_t key[16] = { 0 };
508 if(readKeyfile("iclass_decryptionkey.bin", 16, key))
509 {
510 usage_hf_iclass_decrypt();
511 return 1;
512 }
513 PrintAndLog("Decryption file found... ");
514 char opt = param_getchar(Cmd, 0);
515 if (strlen(Cmd)<1 || opt == 'h')
516 return usage_hf_iclass_decrypt();
517
518 //Open the tagdump-file
519 FILE *f;
520 char filename[FILE_PATH_SIZE];
521 if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0)
522 {
523 f = fopen(filename, "rb");
524 }else{
525 return usage_hf_iclass_decrypt();
526 }
527
528 fseek(f, 0, SEEK_END);
529 long fsize = ftell(f);
530 fseek(f, 0, SEEK_SET);
531 uint8_t enc_dump[8] = {0};
532 uint8_t *decrypted = malloc(fsize);
533 des3_context ctx = { DES_DECRYPT ,{ 0 } };
534 des3_set2key_dec( &ctx, key);
535 size_t bytes_read = fread(enc_dump, 1, 8, f);
536
537 //Use the first block (CSN) for filename
538 char outfilename[FILE_PATH_SIZE] = { 0 };
539 snprintf(outfilename,FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x-decrypted",
540 enc_dump[0],enc_dump[1],enc_dump[2],enc_dump[3],
541 enc_dump[4],enc_dump[5],enc_dump[6],enc_dump[7]);
542
543 size_t blocknum =0;
544 while(bytes_read == 8)
545 {
546 if(blocknum < 7)
547 {
548 memcpy(decrypted+(blocknum*8), enc_dump, 8);
549 }else{
550 des3_crypt_ecb(&ctx, enc_dump,decrypted +(blocknum*8) );
551 }
552 printvar("decrypted block", decrypted +(blocknum*8), 8);
553 bytes_read = fread(enc_dump, 1, 8, f);
554 blocknum++;
555 }
556 fclose(f);
557
558 saveFile(outfilename,"bin", decrypted, blocknum*8);
559
560 return 0;
561 }
562
563 int CmdHFiClass_iso14443A_write(const char *Cmd)
564 {
565 uint8_t readerType = 0;
566 uint8_t MAC[4]={0x00,0x00,0x00,0x00};
567 uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
568 uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
569 uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
570 uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
571
572 uint8_t blockNo=0;
573 uint8_t bldata[8]={0};
574
575 if (strlen(Cmd)<3)
576 {
577 PrintAndLog("Usage: hf iclass write <Key> <Block> <Data>");
578 PrintAndLog(" sample: hf iclass write 0011223344556677 10 AAAAAAAAAAAAAAAA");
579 return 0;
580 }
581
582 if (param_gethex(Cmd, 0, KEY, 16))
583 {
584 PrintAndLog("KEY must include 16 HEX symbols");
585 return 1;
586 }
587
588 blockNo = param_get8(Cmd, 1);
589 if (blockNo>32)
590 {
591 PrintAndLog("Error: Maximum number of blocks is 32 for iClass 2K Cards!");
592 return 1;
593 }
594 if (param_gethex(Cmd, 2, bldata, 8))
595 {
596 PrintAndLog("Block data must include 8 HEX symbols");
597 return 1;
598 }
599
600 UsbCommand c = {CMD_ICLASS_ISO14443A_WRITE, {0}};
601 SendCommand(&c);
602 UsbCommand resp;
603
604 if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
605 uint8_t isOK = resp.arg[0] & 0xff;
606 uint8_t * data = resp.d.asBytes;
607
608 memcpy(CSN,data,8);
609 memcpy(CCNR,data+8,8);
610 PrintAndLog("DEBUG: %s",sprint_hex(CSN,8));
611 PrintAndLog("DEBUG: %s",sprint_hex(CCNR,8));
612 PrintAndLog("isOk:%02x", isOK);
613 } else {
614 PrintAndLog("Command execute timeout");
615 }
616
617 diversifyKey(CSN,KEY, div_key);
618
619 PrintAndLog("Div Key: %s",sprint_hex(div_key,8));
620 doMAC(CCNR, div_key, MAC);
621
622 UsbCommand c2 = {CMD_ICLASS_ISO14443A_WRITE, {readerType,blockNo}};
623 memcpy(c2.d.asBytes, bldata, 8);
624 memcpy(c2.d.asBytes+8, MAC, 4);
625 SendCommand(&c2);
626
627 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
628 uint8_t isOK = resp.arg[0] & 0xff;
629 uint8_t * data = resp.d.asBytes;
630
631 if (isOK)
632 PrintAndLog("isOk:%02x data:%s", isOK, sprint_hex(data, 4));
633 else
634 PrintAndLog("isOk:%02x", isOK);
635 } else {
636 PrintAndLog("Command execute timeout");
637 }
638 return 0;
639 }
640 int CmdHFiClass_loclass(const char *Cmd)
641 {
642 char opt = param_getchar(Cmd, 0);
643
644 if (strlen(Cmd)<1 || opt == 'h') {
645 PrintAndLog("Usage: hf iclass loclass [options]");
646 PrintAndLog("Options:");
647 PrintAndLog("h Show this help");
648 PrintAndLog("t Perform self-test");
649 PrintAndLog("f <filename> Bruteforce iclass dumpfile");
650 PrintAndLog(" An iclass dumpfile is assumed to consist of an arbitrary number of");
651 PrintAndLog(" malicious CSNs, and their protocol responses");
652 PrintAndLog(" The the binary format of the file is expected to be as follows: ");
653 PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
654 PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
655 PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
656 PrintAndLog(" ... totalling N*24 bytes");
657 return 0;
658 }
659 char fileName[255] = {0};
660 if(opt == 'f')
661 {
662 if(param_getstr(Cmd, 1, fileName) > 0)
663 {
664 return bruteforceFileNoKeys(fileName);
665 }else
666 {
667 PrintAndLog("You must specify a filename");
668 }
669 }
670 else if(opt == 't')
671 {
672 int errors = testCipherUtils();
673 errors += testMAC();
674 errors += doKeyTests(0);
675 errors += testElite();
676 if(errors)
677 {
678 prnlog("OBS! There were errors!!!");
679 }
680 return errors;
681 }
682
683 return 0;
684 }
685
686 static command_t CommandTable[] =
687 {
688 {"help", CmdHelp, 1, "This help"},
689 {"list", CmdHFiClassList, 0, "[Deprecated] List iClass history"},
690 {"snoop", CmdHFiClassSnoop, 0, "Eavesdrop iClass communication"},
691 {"sim", CmdHFiClassSim, 0, "Simulate iClass tag"},
692 {"reader",CmdHFiClassReader, 0, "Read an iClass tag"},
693 {"replay",CmdHFiClassReader_Replay, 0, "Read an iClass tag via Reply Attack"},
694 {"dump", CmdHFiClassReader_Dump, 0, "Authenticate and Dump iClass tag"},
695 // {"write", CmdHFiClass_iso14443A_write, 0, "Authenticate and Write iClass block"},
696 {"loclass", CmdHFiClass_loclass, 1, "Use loclass to perform bruteforce of reader attack dump"},
697 {"eload", CmdHFiClassELoad, 0, "[experimental] Load data into iclass emulator memory"},
698 {"decrypt", CmdHFiClassDecrypt, 1, "Decrypt tagdump" },
699 {NULL, NULL, 0, NULL}
700 };
701
702 int CmdHFiClass(const char *Cmd)
703 {
704 CmdsParse(CommandTable, Cmd);
705 return 0;
706 }
707
708 int CmdHelp(const char *Cmd)
709 {
710 CmdsHelp(CommandTable);
711 return 0;
712 }
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