6c85e1c1100d8299310e2e3806227694f42ec475
[proxmark3-svn] / client / cmdhficlass.c
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 #include "cmdhfmfu.h"
35
36 #define llX PRIx64
37
38 static int CmdHelp(const char *Cmd);
39
40 #define ICLASS_KEYS_MAX 8
41 static uint8_t iClass_Key_Table[ICLASS_KEYS_MAX][8] = {
42 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
43 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
44 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
45 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
46 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
47 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
48 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
49 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }
50 };
51
52 typedef struct iclass_block {
53 uint8_t d[8];
54 } iclass_block_t;
55
56 int xorbits_8(uint8_t val) {
57 uint8_t res = val ^ (val >> 1); //1st pass
58 res = res ^ (res >> 1); // 2nd pass
59 res = res ^ (res >> 2); // 3rd pass
60 res = res ^ (res >> 4); // 4th pass
61 return res & 1;
62 }
63
64 int CmdHFiClassList(const char *Cmd) {
65 PrintAndLog("Deprecated command, use 'hf list iclass' instead");
66 return 0;
67 }
68
69 int CmdHFiClassSnoop(const char *Cmd) {
70 UsbCommand c = {CMD_SNOOP_ICLASS};
71 SendCommand(&c);
72 return 0;
73 }
74
75 int usage_hf_iclass_sim(void) {
76 PrintAndLog("Usage: hf iclass sim <option> [CSN]");
77 PrintAndLog(" options");
78 PrintAndLog(" 0 <CSN> simulate the given CSN");
79 PrintAndLog(" 1 simulate default CSN");
80 PrintAndLog(" 2 Reader-attack, gather reader responses to extract elite key");
81 PrintAndLog(" 3 Full simulation using emulator memory (see 'hf iclass eload')");
82 PrintAndLog(" example: hf iclass sim 0 031FEC8AF7FF12E0");
83 PrintAndLog(" example: hf iclass sim 2");
84 PrintAndLog(" example: hf iclass eload 'tagdump.bin'");
85 PrintAndLog(" hf iclass sim 3");
86 return 0;
87 }
88
89 #define NUM_CSNS 15
90 int CmdHFiClassSim(const char *Cmd) {
91 uint8_t simType = 0;
92 uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0};
93
94 if (strlen(Cmd)<1) {
95 return usage_hf_iclass_sim();
96 }
97 simType = param_get8ex(Cmd, 0, 0, 10);
98
99 if(simType == 0)
100 {
101 if (param_gethex(Cmd, 1, CSN, 16)) {
102 PrintAndLog("A CSN should consist of 16 HEX symbols");
103 return usage_hf_iclass_sim();
104 }
105
106 PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8));
107 }
108 if(simType > 3)
109 {
110 PrintAndLog("Undefined simptype %d", simType);
111 return usage_hf_iclass_sim();
112 }
113
114 uint8_t numberOfCSNs=0;
115 if(simType == 2)
116 {
117 UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,NUM_CSNS}};
118 UsbCommand resp = {0};
119
120 uint8_t csns[8*NUM_CSNS] = {
121 0x00, 0x0B, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0,
122 0x00, 0x04, 0x0E, 0x08, 0xF7, 0xFF, 0x12, 0xE0,
123 0x00, 0x09, 0x0D, 0x05, 0xF7, 0xFF, 0x12, 0xE0,
124 0x00, 0x0A, 0x0C, 0x06, 0xF7, 0xFF, 0x12, 0xE0,
125 0x00, 0x0F, 0x0B, 0x03, 0xF7, 0xFF, 0x12, 0xE0,
126 0x00, 0x08, 0x0A, 0x0C, 0xF7, 0xFF, 0x12, 0xE0,
127 0x00, 0x0D, 0x09, 0x09, 0xF7, 0xFF, 0x12, 0xE0,
128 0x00, 0x0E, 0x08, 0x0A, 0xF7, 0xFF, 0x12, 0xE0,
129 0x00, 0x03, 0x07, 0x17, 0xF7, 0xFF, 0x12, 0xE0,
130 0x00, 0x3C, 0x06, 0xE0, 0xF7, 0xFF, 0x12, 0xE0,
131 0x00, 0x01, 0x05, 0x1D, 0xF7, 0xFF, 0x12, 0xE0,
132 0x00, 0x02, 0x04, 0x1E, 0xF7, 0xFF, 0x12, 0xE0,
133 0x00, 0x07, 0x03, 0x1B, 0xF7, 0xFF, 0x12, 0xE0,
134 0x00, 0x00, 0x02, 0x24, 0xF7, 0xFF, 0x12, 0xE0,
135 0x00, 0x05, 0x01, 0x21, 0xF7, 0xFF, 0x12, 0xE0 };
136
137 memcpy(c.d.asBytes, csns, 8*NUM_CSNS);
138
139 SendCommand(&c);
140 if (!WaitForResponseTimeout(CMD_ACK, &resp, -1)) {
141 PrintAndLog("Command timed out");
142 return 0;
143 }
144
145 uint8_t num_mac_responses = resp.arg[1];
146 PrintAndLog("Mac responses: %d MACs obtained (should be %d)", num_mac_responses,NUM_CSNS);
147
148 size_t datalen = NUM_CSNS*24;
149 /*
150 * Now, time to dump to file. We'll use this format:
151 * <8-byte CSN><8-byte CC><4 byte NR><4 byte MAC>....
152 * So, it should wind up as
153 * 8 * 24 bytes.
154 *
155 * The returndata from the pm3 is on the following format
156 * <4 byte NR><4 byte MAC>
157 * CC are all zeroes, CSN is the same as was sent in
158 **/
159 void* dump = malloc(datalen);
160 memset(dump,0,datalen);//<-- Need zeroes for the CC-field
161 uint8_t i = 0;
162 for(i = 0 ; i < NUM_CSNS ; i++)
163 {
164 memcpy(dump+i*24, csns+i*8,8); //CSN
165 //8 zero bytes here...
166 //Then comes NR_MAC (eight bytes from the response)
167 memcpy(dump+i*24+16,resp.d.asBytes+i*8,8);
168
169 }
170 /** Now, save to dumpfile **/
171 saveFile("iclass_mac_attack", "bin", dump,datalen);
172 free(dump);
173 }else
174 {
175 UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,numberOfCSNs}};
176 memcpy(c.d.asBytes, CSN, 8);
177 SendCommand(&c);
178 }
179
180 return 0;
181 }
182
183 int HFiClassReader(const char *Cmd, bool loop, bool verbose) {
184 bool tagFound = false;
185 UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_CSN|
186 FLAG_ICLASS_READER_CONF|FLAG_ICLASS_READER_AA}};
187 // loop in client not device - else on windows have a communication error
188 c.arg[0] |= FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_ONE_TRY;
189 UsbCommand resp;
190 while(!ukbhit()){
191 SendCommand(&c);
192 if (WaitForResponseTimeout(CMD_ACK,&resp, 4500)) {
193 uint8_t readStatus = resp.arg[0] & 0xff;
194 uint8_t *data = resp.d.asBytes;
195
196 if (verbose)
197 PrintAndLog("Readstatus:%02x", readStatus);
198 if( readStatus == 0){
199 //Aborted
200 if (verbose) PrintAndLog("Quitting...");
201 return 0;
202 }
203 if( readStatus & FLAG_ICLASS_READER_CSN){
204 PrintAndLog("CSN: %s",sprint_hex(data,8));
205 tagFound = true;
206 }
207 if( readStatus & FLAG_ICLASS_READER_CC) PrintAndLog("CC: %s",sprint_hex(data+16,8));
208 if( readStatus & FLAG_ICLASS_READER_CONF){
209 printIclassDumpInfo(data);
210 }
211 if (tagFound && !loop) return 1;
212 } else {
213 if (verbose) PrintAndLog("Command execute timeout");
214 }
215 if (!loop) break;
216 }
217 return 0;
218 }
219
220 int CmdHFiClassReader(const char *Cmd) {
221 return HFiClassReader(Cmd, true, true);
222 }
223
224 int CmdHFiClassReader_Replay(const char *Cmd) {
225 uint8_t readerType = 0;
226 uint8_t MAC[4]={0x00, 0x00, 0x00, 0x00};
227
228 if (strlen(Cmd)<1) {
229 PrintAndLog("Usage: hf iclass replay <MAC>");
230 PrintAndLog(" sample: hf iclass replay 00112233");
231 return 0;
232 }
233
234 if (param_gethex(Cmd, 0, MAC, 8)) {
235 PrintAndLog("MAC must include 8 HEX symbols");
236 return 1;
237 }
238
239 UsbCommand c = {CMD_READER_ICLASS_REPLAY, {readerType}};
240 memcpy(c.d.asBytes, MAC, 4);
241 SendCommand(&c);
242
243 return 0;
244 }
245
246 int iclassEmlSetMem(uint8_t *data, int blockNum, int blocksCount) {
247 UsbCommand c = {CMD_MIFARE_EML_MEMSET, {blockNum, blocksCount, 0}};
248 memcpy(c.d.asBytes, data, blocksCount * 16);
249 SendCommand(&c);
250 return 0;
251 }
252
253 int hf_iclass_eload_usage(void) {
254 PrintAndLog("Loads iclass tag-dump into emulator memory on device");
255 PrintAndLog("Usage: hf iclass eload f <filename>");
256 PrintAndLog("");
257 PrintAndLog("Example: hf iclass eload f iclass_tagdump-aa162d30f8ff12f1.bin");
258 return 0;
259 }
260
261 int CmdHFiClassELoad(const char *Cmd) {
262
263 char opt = param_getchar(Cmd, 0);
264 if (strlen(Cmd)<1 || opt == 'h')
265 return hf_iclass_eload_usage();
266
267 //File handling and reading
268 FILE *f;
269 char filename[FILE_PATH_SIZE];
270 if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0)
271 {
272 f = fopen(filename, "rb");
273 }else{
274 return hf_iclass_eload_usage();
275 }
276
277 if(!f) {
278 PrintAndLog("Failed to read from file '%s'", filename);
279 return 1;
280 }
281
282 fseek(f, 0, SEEK_END);
283 long fsize = ftell(f);
284 fseek(f, 0, SEEK_SET);
285
286 uint8_t *dump = malloc(fsize);
287
288
289 size_t bytes_read = fread(dump, 1, fsize, f);
290 fclose(f);
291
292 printIclassDumpInfo(dump);
293 //Validate
294
295 if (bytes_read < fsize)
296 {
297 prnlog("Error, could only read %d bytes (should be %d)",bytes_read, fsize );
298 free(dump);
299 return 1;
300 }
301 //Send to device
302 uint32_t bytes_sent = 0;
303 uint32_t bytes_remaining = bytes_read;
304
305 while(bytes_remaining > 0){
306 uint32_t bytes_in_packet = MIN(USB_CMD_DATA_SIZE, bytes_remaining);
307 UsbCommand c = {CMD_ICLASS_EML_MEMSET, {bytes_sent,bytes_in_packet,0}};
308 memcpy(c.d.asBytes, dump, bytes_in_packet);
309 SendCommand(&c);
310 bytes_remaining -= bytes_in_packet;
311 bytes_sent += bytes_in_packet;
312 }
313 free(dump);
314 PrintAndLog("Sent %d bytes of data to device emulator memory", bytes_sent);
315 return 0;
316 }
317
318 static int readKeyfile(const char *filename, size_t len, uint8_t* buffer) {
319 FILE *f = fopen(filename, "rb");
320 if(!f) {
321 PrintAndLog("Failed to read from file '%s'", filename);
322 return 1;
323 }
324 fseek(f, 0, SEEK_END);
325 long fsize = ftell(f);
326 fseek(f, 0, SEEK_SET);
327 size_t bytes_read = fread(buffer, 1, len, f);
328 fclose(f);
329 if(fsize != len)
330 {
331 PrintAndLog("Warning, file size is %d, expected %d", fsize, len);
332 return 1;
333 }
334 if(bytes_read != len)
335 {
336 PrintAndLog("Warning, could only read %d bytes, expected %d" ,bytes_read, len);
337 return 1;
338 }
339 return 0;
340 }
341
342 int usage_hf_iclass_decrypt(void) {
343 PrintAndLog("Usage: hf iclass decrypt f <tagdump>");
344 PrintAndLog("");
345 PrintAndLog("OBS! In order to use this function, the file 'iclass_decryptionkey.bin' must reside");
346 PrintAndLog("in the working directory. The file should be 16 bytes binary data");
347 PrintAndLog("");
348 PrintAndLog("example: hf iclass decrypt f tagdump_12312342343.bin");
349 PrintAndLog("");
350 PrintAndLog("OBS! This is pretty stupid implementation, it tries to decrypt every block after block 6. ");
351 PrintAndLog("Correct behaviour would be to decrypt only the application areas where the key is valid,");
352 PrintAndLog("which is defined by the configuration block.");
353 return 1;
354 }
355
356 int CmdHFiClassDecrypt(const char *Cmd) {
357 uint8_t key[16] = { 0 };
358 if(readKeyfile("iclass_decryptionkey.bin", 16, key))
359 {
360 usage_hf_iclass_decrypt();
361 return 1;
362 }
363 PrintAndLog("Decryption file found... ");
364 char opt = param_getchar(Cmd, 0);
365 if (strlen(Cmd)<1 || opt == 'h')
366 return usage_hf_iclass_decrypt();
367
368 //Open the tagdump-file
369 FILE *f;
370 char filename[FILE_PATH_SIZE];
371 if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0)
372 {
373 f = fopen(filename, "rb");
374 }else{
375 return usage_hf_iclass_decrypt();
376 }
377
378 fseek(f, 0, SEEK_END);
379 long fsize = ftell(f);
380 fseek(f, 0, SEEK_SET);
381 uint8_t enc_dump[8] = {0};
382 uint8_t *decrypted = malloc(fsize);
383 des3_context ctx = { DES_DECRYPT ,{ 0 } };
384 des3_set2key_dec( &ctx, key);
385 size_t bytes_read = fread(enc_dump, 1, 8, f);
386
387 //Use the first block (CSN) for filename
388 char outfilename[FILE_PATH_SIZE] = { 0 };
389 snprintf(outfilename,FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x-decrypted",
390 enc_dump[0],enc_dump[1],enc_dump[2],enc_dump[3],
391 enc_dump[4],enc_dump[5],enc_dump[6],enc_dump[7]);
392
393 size_t blocknum =0;
394 while(bytes_read == 8)
395 {
396 if(blocknum < 7)
397 {
398 memcpy(decrypted+(blocknum*8), enc_dump, 8);
399 }else{
400 des3_crypt_ecb(&ctx, enc_dump,decrypted +(blocknum*8) );
401 }
402 printvar("decrypted block", decrypted +(blocknum*8), 8);
403 bytes_read = fread(enc_dump, 1, 8, f);
404 blocknum++;
405 }
406 fclose(f);
407
408 saveFile(outfilename,"bin", decrypted, blocknum*8);
409 free(decrypted);
410 return 0;
411 }
412
413 int usage_hf_iclass_encrypt(void) {
414 PrintAndLog("Usage: hf iclass encrypt <BlockData>");
415 PrintAndLog("");
416 PrintAndLog("OBS! In order to use this function, the file 'iclass_decryptionkey.bin' must reside");
417 PrintAndLog("in the working directory. The file should be 16 bytes binary data");
418 PrintAndLog("");
419 PrintAndLog("example: hf iclass encrypt 0102030405060708");
420 PrintAndLog("");
421 return 0;
422 }
423
424 static int iClassEncryptBlkData(uint8_t *blkData) {
425 uint8_t key[16] = { 0 };
426 if(readKeyfile("iclass_decryptionkey.bin", 16, key))
427 {
428 usage_hf_iclass_encrypt();
429 return 1;
430 }
431 PrintAndLog("Decryption file found... ");
432
433 uint8_t encryptedData[16];
434 uint8_t *encrypted = encryptedData;
435 des3_context ctx = { DES_DECRYPT ,{ 0 } };
436 des3_set2key_enc( &ctx, key);
437
438 des3_crypt_ecb(&ctx, blkData,encrypted);
439 //printvar("decrypted block", decrypted, 8);
440 memcpy(blkData,encrypted,8);
441
442 return 1;
443 }
444
445 int CmdHFiClassEncryptBlk(const char *Cmd) {
446 uint8_t blkData[8] = {0};
447 char opt = param_getchar(Cmd, 0);
448 if (strlen(Cmd)<1 || opt == 'h')
449 return usage_hf_iclass_encrypt();
450
451 //get the bytes to encrypt
452 if (param_gethex(Cmd, 0, blkData, 16))
453 {
454 PrintAndLog("BlockData must include 16 HEX symbols");
455 return 0;
456 }
457 if (!iClassEncryptBlkData(blkData)) return 0;
458
459 printvar("encrypted block", blkData, 8);
460 return 1;
461 }
462
463 void Calc_wb_mac(uint8_t blockno, uint8_t *data, uint8_t *div_key, uint8_t MAC[4]) {
464 uint8_t WB[9];
465 WB[0] = blockno;
466 memcpy(WB + 1,data,8);
467 doMAC_N(WB,sizeof(WB),div_key,MAC);
468 //printf("Cal wb mac block [%02x][%02x%02x%02x%02x%02x%02x%02x%02x] : MAC [%02x%02x%02x%02x]",WB[0],WB[1],WB[2],WB[3],WB[4],WB[5],WB[6],WB[7],WB[8],MAC[0],MAC[1],MAC[2],MAC[3]);
469 }
470
471 static bool select_only(uint8_t *CSN, uint8_t *CCNR, bool use_credit_key, bool verbose) {
472 UsbCommand resp;
473
474 UsbCommand c = {CMD_READER_ICLASS, {0}};
475 c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_CC | FLAG_ICLASS_READER_ONE_TRY;
476 if (use_credit_key)
477 c.arg[0] |= FLAG_ICLASS_READER_CEDITKEY;
478
479 clearCommandBuffer();
480 SendCommand(&c);
481 if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
482 {
483 PrintAndLog("Command execute timeout");
484 return false;
485 }
486
487 uint8_t isOK = resp.arg[0] & 0xff;
488 uint8_t *data = resp.d.asBytes;
489
490 memcpy(CSN,data,8);
491 if (CCNR!=NULL)memcpy(CCNR,data+16,8);
492 if(isOK > 0)
493 {
494 if (verbose) PrintAndLog("CSN: %s",sprint_hex(CSN,8));
495 }
496 if(isOK <= 1){
497 PrintAndLog("Failed to obtain CC! Aborting");
498 return false;
499 }
500 return true;
501 }
502
503 static bool select_and_auth(uint8_t *KEY, uint8_t *MAC, uint8_t *div_key, bool use_credit_key, bool elite, bool rawkey, bool verbose) {
504 uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
505 uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
506
507 if (!select_only(CSN, CCNR, use_credit_key, verbose))
508 return false;
509
510 //get div_key
511 if(rawkey)
512 memcpy(div_key, KEY, 8);
513 else
514 HFiClassCalcDivKey(CSN, KEY, div_key, elite);
515 PrintAndLog("Authing with %s: %02x%02x%02x%02x%02x%02x%02x%02x", rawkey ? "raw key" : "diversified key", div_key[0],div_key[1],div_key[2],div_key[3],div_key[4],div_key[5],div_key[6],div_key[7]);
516
517 doMAC(CCNR, div_key, MAC);
518 UsbCommand resp;
519 UsbCommand d = {CMD_ICLASS_AUTHENTICATION, {0}};
520 memcpy(d.d.asBytes, MAC, 4);
521 clearCommandBuffer();
522 SendCommand(&d);
523 if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
524 {
525 PrintAndLog("Auth Command execute timeout");
526 return false;
527 }
528 uint8_t isOK = resp.arg[0] & 0xff;
529 if (!isOK) {
530 PrintAndLog("Authentication error");
531 return false;
532 }
533 return true;
534 }
535
536 int usage_hf_iclass_dump(void) {
537 PrintAndLog("Usage: hf iclass dump f <fileName> k <Key> c <CreditKey> e|r\n");
538 PrintAndLog("Options:");
539 PrintAndLog(" f <filename> : specify a filename to save dump to");
540 PrintAndLog(" k <Key> : *Access Key as 16 hex symbols or 1 hex to select key from memory");
541 PrintAndLog(" c <CreditKey>: Credit Key as 16 hex symbols or 1 hex to select key from memory");
542 PrintAndLog(" e : If 'e' is specified, the key is interpreted as the 16 byte");
543 PrintAndLog(" Custom Key (KCus), which can be obtained via reader-attack");
544 PrintAndLog(" See 'hf iclass sim 2'. This key should be on iclass-format");
545 PrintAndLog(" r : If 'r' is specified, the key is interpreted as raw block 3/4");
546 PrintAndLog(" NOTE: * = required");
547 PrintAndLog("Samples:");
548 PrintAndLog(" hf iclass dump k 001122334455667B");
549 PrintAndLog(" hf iclass dump k AAAAAAAAAAAAAAAA c 001122334455667B");
550 PrintAndLog(" hf iclass dump k AAAAAAAAAAAAAAAA e");
551 return 0;
552 }
553
554 int CmdHFiClassReader_Dump(const char *Cmd) {
555
556 uint8_t MAC[4] = {0x00,0x00,0x00,0x00};
557 uint8_t div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
558 uint8_t c_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
559 uint8_t blockno = 0;
560 uint8_t numblks = 0;
561 uint8_t maxBlk = 31;
562 uint8_t app_areas = 1;
563 uint8_t kb = 2;
564 uint8_t KEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
565 uint8_t CreditKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
566 uint8_t keyNbr = 0;
567 uint8_t dataLen = 0;
568 uint8_t fileNameLen = 0;
569 char filename[FILE_PATH_SIZE]={0};
570 char tempStr[50] = {0};
571 bool have_debit_key = false;
572 bool have_credit_key = false;
573 bool use_credit_key = false;
574 bool elite = false;
575 bool rawkey = false;
576 bool errors = false;
577 uint8_t cmdp = 0;
578
579 while(param_getchar(Cmd, cmdp) != 0x00)
580 {
581 switch(param_getchar(Cmd, cmdp))
582 {
583 case 'h':
584 case 'H':
585 return usage_hf_iclass_dump();
586 case 'c':
587 case 'C':
588 have_credit_key = true;
589 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
590 if (dataLen == 16) {
591 errors = param_gethex(tempStr, 0, CreditKEY, dataLen);
592 } else if (dataLen == 1) {
593 keyNbr = param_get8(Cmd, cmdp+1);
594 if (keyNbr <= ICLASS_KEYS_MAX) {
595 memcpy(CreditKEY, iClass_Key_Table[keyNbr], 8);
596 } else {
597 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
598 errors = true;
599 }
600 } else {
601 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
602 errors = true;
603 }
604 cmdp += 2;
605 break;
606 case 'e':
607 case 'E':
608 elite = true;
609 cmdp++;
610 break;
611 case 'f':
612 case 'F':
613 fileNameLen = param_getstr(Cmd, cmdp+1, filename);
614 if (fileNameLen < 1) {
615 PrintAndLog("No filename found after f");
616 errors = true;
617 }
618 cmdp += 2;
619 break;
620 case 'k':
621 case 'K':
622 have_debit_key = true;
623 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
624 if (dataLen == 16) {
625 errors = param_gethex(tempStr, 0, KEY, dataLen);
626 } else if (dataLen == 1) {
627 keyNbr = param_get8(Cmd, cmdp+1);
628 if (keyNbr <= ICLASS_KEYS_MAX) {
629 memcpy(KEY, iClass_Key_Table[keyNbr], 8);
630 } else {
631 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
632 errors = true;
633 }
634 } else {
635 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
636 errors = true;
637 }
638 cmdp += 2;
639 break;
640 case 'r':
641 case 'R':
642 rawkey = true;
643 cmdp++;
644 break;
645 default:
646 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
647 errors = true;
648 break;
649 }
650 if(errors) return usage_hf_iclass_dump();
651 }
652
653 if (cmdp < 2) return usage_hf_iclass_dump();
654 // if no debit key given try credit key on AA1 (not for iclass but for some picopass this will work)
655 if (!have_debit_key && have_credit_key) use_credit_key = true;
656
657 //get config and first 3 blocks
658 UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_CSN |
659 FLAG_ICLASS_READER_CONF | FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_ONE_TRY}};
660 UsbCommand resp;
661 uint8_t tag_data[255*8];
662
663 clearCommandBuffer();
664 SendCommand(&c);
665 if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) {
666 PrintAndLog("Command execute timeout");
667 ul_switch_off_field();
668 return 0;
669 }
670 uint8_t readStatus = resp.arg[0] & 0xff;
671 uint8_t *data = resp.d.asBytes;
672
673 if(readStatus == 0){
674 PrintAndLog("No tag found...");
675 ul_switch_off_field();
676 return 0;
677 }
678 if( readStatus & (FLAG_ICLASS_READER_CSN|FLAG_ICLASS_READER_CONF|FLAG_ICLASS_READER_CC)){
679 memcpy(tag_data, data, 8*3);
680 blockno+=2; // 2 to force re-read of block 2 later. (seems to respond differently..)
681 numblks = data[8];
682 getMemConfig(data[13], data[12], &maxBlk, &app_areas, &kb);
683 // large memory - not able to dump pages currently
684 if (numblks > maxBlk) numblks = maxBlk;
685 }
686 ul_switch_off_field();
687 // authenticate debit key and get div_key - later store in dump block 3
688 if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, false)){
689 //try twice - for some reason it sometimes fails the first time...
690 if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, false)){
691 ul_switch_off_field();
692 return 0;
693 }
694 }
695
696 // begin dump
697 UsbCommand w = {CMD_ICLASS_DUMP, {blockno, numblks-blockno+1}};
698 clearCommandBuffer();
699 SendCommand(&w);
700 if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) {
701 PrintAndLog("Command execute time-out 1");
702 ul_switch_off_field();
703 return 1;
704 }
705 uint32_t blocksRead = resp.arg[1];
706 uint8_t isOK = resp.arg[0] & 0xff;
707 if (!isOK && !blocksRead) {
708 PrintAndLog("Read Block Failed");
709 ul_switch_off_field();
710 return 0;
711 }
712 uint32_t startindex = resp.arg[2];
713 if (blocksRead*8 > sizeof(tag_data)-(blockno*8)) {
714 PrintAndLog("Data exceeded Buffer size!");
715 blocksRead = (sizeof(tag_data)/8) - blockno;
716 }
717 // response ok - now get bigbuf content of the dump
718 GetFromBigBuf(tag_data+(blockno*8), blocksRead*8, startindex);
719 WaitForResponse(CMD_ACK,NULL);
720 size_t gotBytes = blocksRead*8 + blockno*8;
721
722 // try AA2
723 if (have_credit_key) {
724 //turn off hf field before authenticating with different key
725 ul_switch_off_field();
726 memset(MAC,0,4);
727 // AA2 authenticate credit key and git c_div_key - later store in dump block 4
728 if (!select_and_auth(CreditKEY, MAC, c_div_key, true, false, false, false)){
729 //try twice - for some reason it sometimes fails the first time...
730 if (!select_and_auth(CreditKEY, MAC, c_div_key, true, false, false, false)){
731 ul_switch_off_field();
732 return 0;
733 }
734 }
735 // do we still need to read more block? (aa2 enabled?)
736 if (maxBlk > blockno+numblks+1) {
737 // setup dump and start
738 w.arg[0] = blockno + blocksRead;
739 w.arg[1] = maxBlk - (blockno + blocksRead);
740 clearCommandBuffer();
741 SendCommand(&w);
742 if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) {
743 PrintAndLog("Command execute timeout 2");
744 ul_switch_off_field();
745 return 0;
746 }
747 uint8_t isOK = resp.arg[0] & 0xff;
748 blocksRead = resp.arg[1];
749 if (!isOK && !blocksRead) {
750 PrintAndLog("Read Block Failed 2");
751 ul_switch_off_field();
752 return 0;
753 }
754
755 startindex = resp.arg[2];
756 if (blocksRead*8 > sizeof(tag_data)-gotBytes) {
757 PrintAndLog("Data exceeded Buffer size!");
758 blocksRead = (sizeof(tag_data) - gotBytes)/8;
759 }
760 // get dumped data from bigbuf
761 GetFromBigBuf(tag_data+gotBytes, blocksRead*8, startindex);
762 WaitForResponse(CMD_ACK,NULL);
763
764 gotBytes += blocksRead*8;
765 } else { //field is still on - turn it off...
766 ul_switch_off_field();
767 }
768 }
769
770 // add diversified keys to dump
771 if (have_debit_key) memcpy(tag_data+(3*8),div_key,8);
772 if (have_credit_key) memcpy(tag_data+(4*8),c_div_key,8);
773 // print the dump
774 printf("CSN |00| %02X %02X %02X %02X %02X %02X %02X %02X |\n",tag_data[0],tag_data[1],tag_data[2]
775 ,tag_data[3],tag_data[4],tag_data[5],tag_data[6],tag_data[7]);
776 printIclassDumpContents(tag_data, 1, (gotBytes/8)-1, gotBytes-8);
777
778 if (filename[0] == 0){
779 snprintf(filename, FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x",
780 tag_data[0],tag_data[1],tag_data[2],tag_data[3],
781 tag_data[4],tag_data[5],tag_data[6],tag_data[7]);
782 }
783
784 // save the dump to .bin file
785 PrintAndLog("Saving dump file - %d blocks read", gotBytes/8);
786 saveFile(filename, "bin", tag_data, gotBytes);
787 return 1;
788 }
789
790 static int WriteBlock(uint8_t blockno, uint8_t *bldata, uint8_t *KEY, bool use_credit_key, bool elite, bool rawkey, bool verbose) {
791 uint8_t MAC[4]={0x00,0x00,0x00,0x00};
792 uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
793 if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, verbose))
794 return 0;
795
796 UsbCommand resp;
797
798 Calc_wb_mac(blockno,bldata,div_key,MAC);
799 UsbCommand w = {CMD_ICLASS_WRITEBLOCK, {blockno}};
800 memcpy(w.d.asBytes, bldata, 8);
801 memcpy(w.d.asBytes + 8, MAC, 4);
802
803 clearCommandBuffer();
804 SendCommand(&w);
805 if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
806 {
807 PrintAndLog("Write Command execute timeout");
808 return 0;
809 }
810 uint8_t isOK = resp.arg[0] & 0xff;
811 if (!isOK) {
812 PrintAndLog("Write Block Failed");
813 return 0;
814 }
815 PrintAndLog("Write Block Successful");
816 return 1;
817 }
818
819 int usage_hf_iclass_writeblock(void) {
820 PrintAndLog("Options:");
821 PrintAndLog(" b <Block> : The block number as 2 hex symbols");
822 PrintAndLog(" d <data> : Set the Data to write as 16 hex symbols");
823 PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory");
824 PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n");
825 PrintAndLog(" e : If 'e' is specified, elite computations applied to key");
826 PrintAndLog(" r : If 'r' is specified, no computations applied to key");
827 PrintAndLog("Samples:");
828 PrintAndLog(" hf iclass writeblk b 0A d AAAAAAAAAAAAAAAA k 001122334455667B");
829 PrintAndLog(" hf iclass writeblk b 1B d AAAAAAAAAAAAAAAA k 001122334455667B c");
830 PrintAndLog(" hf iclass writeblk b 0A d AAAAAAAAAAAAAAAA n 0");
831 return 0;
832 }
833
834 int CmdHFiClass_WriteBlock(const char *Cmd) {
835 uint8_t blockno=0;
836 uint8_t bldata[8]={0,0,0,0,0,0,0,0};
837 uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
838 uint8_t keyNbr = 0;
839 uint8_t dataLen = 0;
840 char tempStr[50] = {0};
841 bool use_credit_key = false;
842 bool elite = false;
843 bool rawkey= false;
844 bool errors = false;
845 uint8_t cmdp = 0;
846 while(param_getchar(Cmd, cmdp) != 0x00)
847 {
848 switch(param_getchar(Cmd, cmdp))
849 {
850 case 'h':
851 case 'H':
852 return usage_hf_iclass_writeblock();
853 case 'b':
854 case 'B':
855 if (param_gethex(Cmd, cmdp+1, &blockno, 2)) {
856 PrintAndLog("Block No must include 2 HEX symbols\n");
857 errors = true;
858 }
859 cmdp += 2;
860 break;
861 case 'c':
862 case 'C':
863 use_credit_key = true;
864 cmdp++;
865 break;
866 case 'd':
867 case 'D':
868 if (param_gethex(Cmd, cmdp+1, bldata, 16))
869 {
870 PrintAndLog("KEY must include 16 HEX symbols\n");
871 errors = true;
872 }
873 cmdp += 2;
874 break;
875 case 'e':
876 case 'E':
877 elite = true;
878 cmdp++;
879 break;
880 case 'k':
881 case 'K':
882 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
883 if (dataLen == 16) {
884 errors = param_gethex(tempStr, 0, KEY, dataLen);
885 } else if (dataLen == 1) {
886 keyNbr = param_get8(Cmd, cmdp+1);
887 if (keyNbr <= ICLASS_KEYS_MAX) {
888 memcpy(KEY, iClass_Key_Table[keyNbr], 8);
889 } else {
890 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
891 errors = true;
892 }
893 } else {
894 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
895 errors = true;
896 }
897 cmdp += 2;
898 break;
899 case 'r':
900 case 'R':
901 rawkey = true;
902 cmdp++;
903 break;
904 default:
905 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
906 errors = true;
907 break;
908 }
909 if(errors) return usage_hf_iclass_writeblock();
910 }
911
912 if (cmdp < 6) return usage_hf_iclass_writeblock();
913 int ans = WriteBlock(blockno, bldata, KEY, use_credit_key, elite, rawkey, true);
914 ul_switch_off_field();
915 return ans;
916 }
917
918 int usage_hf_iclass_clone(void) {
919 PrintAndLog("Usage: hf iclass clone f <tagfile.bin> b <first block> l <last block> k <KEY> c e|r");
920 PrintAndLog("Options:");
921 PrintAndLog(" f <filename>: specify a filename to clone from");
922 PrintAndLog(" b <Block> : The first block to clone as 2 hex symbols");
923 PrintAndLog(" l <Last Blk>: Set the Data to write as 16 hex symbols");
924 PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory");
925 PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n");
926 PrintAndLog(" e : If 'e' is specified, elite computations applied to key");
927 PrintAndLog(" r : If 'r' is specified, no computations applied to key");
928 PrintAndLog("Samples:");
929 PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 06 l 1A k 1122334455667788 e");
930 PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 05 l 19 k 0");
931 PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 06 l 19 k 0 e");
932 return -1;
933 }
934
935 int CmdHFiClassCloneTag(const char *Cmd) {
936 char filename[FILE_PATH_SIZE];
937 char tempStr[50]={0};
938 uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
939 uint8_t keyNbr = 0;
940 uint8_t fileNameLen = 0;
941 uint8_t startblock = 0;
942 uint8_t endblock = 0;
943 uint8_t dataLen = 0;
944 bool use_credit_key = false;
945 bool elite = false;
946 bool rawkey = false;
947 bool errors = false;
948 uint8_t cmdp = 0;
949 while(param_getchar(Cmd, cmdp) != 0x00)
950 {
951 switch(param_getchar(Cmd, cmdp))
952 {
953 case 'h':
954 case 'H':
955 return usage_hf_iclass_clone();
956 case 'b':
957 case 'B':
958 if (param_gethex(Cmd, cmdp+1, &startblock, 2)) {
959 PrintAndLog("Start Block No must include 2 HEX symbols\n");
960 errors = true;
961 }
962 cmdp += 2;
963 break;
964 case 'c':
965 case 'C':
966 use_credit_key = true;
967 cmdp++;
968 break;
969 case 'e':
970 case 'E':
971 elite = true;
972 cmdp++;
973 break;
974 case 'f':
975 case 'F':
976 fileNameLen = param_getstr(Cmd, cmdp+1, filename);
977 if (fileNameLen < 1) {
978 PrintAndLog("No filename found after f");
979 errors = true;
980 }
981 cmdp += 2;
982 break;
983 case 'k':
984 case 'K':
985 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
986 if (dataLen == 16) {
987 errors = param_gethex(tempStr, 0, KEY, dataLen);
988 } else if (dataLen == 1) {
989 keyNbr = param_get8(Cmd, cmdp+1);
990 if (keyNbr <= ICLASS_KEYS_MAX) {
991 memcpy(KEY, iClass_Key_Table[keyNbr], 8);
992 } else {
993 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
994 errors = true;
995 }
996 } else {
997 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
998 errors = true;
999 }
1000 cmdp += 2;
1001 break;
1002 case 'l':
1003 case 'L':
1004 if (param_gethex(Cmd, cmdp+1, &endblock, 2)) {
1005 PrintAndLog("Start Block No must include 2 HEX symbols\n");
1006 errors = true;
1007 }
1008 cmdp += 2;
1009 break;
1010 case 'r':
1011 case 'R':
1012 rawkey = true;
1013 cmdp++;
1014 break;
1015 default:
1016 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
1017 errors = true;
1018 break;
1019 }
1020 if(errors) return usage_hf_iclass_clone();
1021 }
1022
1023 if (cmdp < 8) return usage_hf_iclass_clone();
1024
1025 FILE *f;
1026
1027 iclass_block_t tag_data[USB_CMD_DATA_SIZE/12];
1028
1029 if ((endblock-startblock+1)*12 > USB_CMD_DATA_SIZE) {
1030 PrintAndLog("Trying to write too many blocks at once. Max: %d", USB_CMD_DATA_SIZE/8);
1031 }
1032 // file handling and reading
1033 f = fopen(filename,"rb");
1034 if(!f) {
1035 PrintAndLog("Failed to read from file '%s'", filename);
1036 return 1;
1037 }
1038
1039 if (startblock<5) {
1040 PrintAndLog("You cannot write key blocks this way. yet... make your start block > 4");
1041 return 0;
1042 }
1043 // now read data from the file from block 6 --- 19
1044 // ok we will use this struct [data 8 bytes][MAC 4 bytes] for each block calculate all mac number for each data
1045 // then copy to usbcommand->asbytes; the max is 32 - 6 = 24 block 12 bytes each block 288 bytes then we can only accept to clone 21 blocks at the time,
1046 // else we have to create a share memory
1047 int i;
1048 fseek(f,startblock*8,SEEK_SET);
1049 fread(tag_data,sizeof(iclass_block_t),endblock - startblock + 1,f);
1050
1051 uint8_t MAC[4]={0x00,0x00,0x00,0x00};
1052 uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1053
1054 if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, true))
1055 return 0;
1056
1057 UsbCommand w = {CMD_ICLASS_CLONE,{startblock,endblock}};
1058 uint8_t *ptr;
1059 // calculate all mac for every the block we will write
1060 for (i = startblock; i <= endblock; i++){
1061 Calc_wb_mac(i,tag_data[i - startblock].d,div_key,MAC);
1062 // usb command d start pointer = d + (i - 6) * 12
1063 // memcpy(pointer,tag_data[i - 6],8) 8 bytes
1064 // memcpy(pointer + 8,mac,sizoof(mac) 4 bytes;
1065 // next one
1066 ptr = w.d.asBytes + (i - startblock) * 12;
1067 memcpy(ptr, &(tag_data[i - startblock].d[0]), 8);
1068 memcpy(ptr + 8,MAC, 4);
1069 }
1070 uint8_t p[12];
1071 for (i = 0; i <= endblock - startblock;i++){
1072 memcpy(p,w.d.asBytes + (i * 12),12);
1073 printf("Block |%02x|",i + startblock);
1074 printf(" %02x%02x%02x%02x%02x%02x%02x%02x |",p[0],p[1],p[2],p[3],p[4],p[5],p[6],p[7]);
1075 printf(" MAC |%02x%02x%02x%02x|\n",p[8],p[9],p[10],p[11]);
1076 }
1077 UsbCommand resp;
1078 SendCommand(&w);
1079 if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
1080 {
1081 PrintAndLog("Command execute timeout");
1082 return 0;
1083 }
1084 return 1;
1085 }
1086
1087 static int ReadBlock(uint8_t *KEY, uint8_t blockno, uint8_t keyType, bool elite, bool rawkey, bool verbose) {
1088 uint8_t MAC[4]={0x00,0x00,0x00,0x00};
1089 uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1090
1091 if (!select_and_auth(KEY, MAC, div_key, (keyType==0x18), elite, rawkey, verbose))
1092 return 0;
1093
1094 UsbCommand resp;
1095 UsbCommand w = {CMD_ICLASS_READBLOCK, {blockno}};
1096 clearCommandBuffer();
1097 SendCommand(&w);
1098 if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
1099 {
1100 PrintAndLog("Command execute timeout");
1101 return 0;
1102 }
1103 uint8_t isOK = resp.arg[0] & 0xff;
1104 if (!isOK) {
1105 PrintAndLog("Read Block Failed");
1106 return 0;
1107 }
1108 //data read is stored in: resp.d.asBytes[0-15]
1109 if (verbose) PrintAndLog("Block %02X: %s\n",blockno, sprint_hex(resp.d.asBytes,8));
1110 return 1;
1111 }
1112
1113 int usage_hf_iclass_readblock(void) {
1114 PrintAndLog("Usage: hf iclass readblk b <Block> k <Key> c e|r\n");
1115 PrintAndLog("Options:");
1116 PrintAndLog(" b <Block> : The block number as 2 hex symbols");
1117 PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory");
1118 PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n");
1119 PrintAndLog(" e : If 'e' is specified, elite computations applied to key");
1120 PrintAndLog(" r : If 'r' is specified, no computations applied to key");
1121 PrintAndLog("Samples:");
1122 PrintAndLog(" hf iclass readblk b 06 k 0011223344556677");
1123 PrintAndLog(" hf iclass readblk b 1B k 0011223344556677 c");
1124 PrintAndLog(" hf iclass readblk b 0A k 0");
1125 return 0;
1126 }
1127
1128 int CmdHFiClass_ReadBlock(const char *Cmd) {
1129 uint8_t blockno=0;
1130 uint8_t keyType = 0x88; //debit key
1131 uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1132 uint8_t keyNbr = 0;
1133 uint8_t dataLen = 0;
1134 char tempStr[50] = {0};
1135 bool elite = false;
1136 bool rawkey = false;
1137 bool errors = false;
1138 uint8_t cmdp = 0;
1139 while(param_getchar(Cmd, cmdp) != 0x00)
1140 {
1141 switch(param_getchar(Cmd, cmdp))
1142 {
1143 case 'h':
1144 case 'H':
1145 return usage_hf_iclass_readblock();
1146 case 'b':
1147 case 'B':
1148 if (param_gethex(Cmd, cmdp+1, &blockno, 2)) {
1149 PrintAndLog("Block No must include 2 HEX symbols\n");
1150 errors = true;
1151 }
1152 cmdp += 2;
1153 break;
1154 case 'c':
1155 case 'C':
1156 keyType = 0x18;
1157 cmdp++;
1158 break;
1159 case 'e':
1160 case 'E':
1161 elite = true;
1162 cmdp++;
1163 break;
1164 case 'k':
1165 case 'K':
1166 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
1167 if (dataLen == 16) {
1168 errors = param_gethex(tempStr, 0, KEY, dataLen);
1169 } else if (dataLen == 1) {
1170 keyNbr = param_get8(Cmd, cmdp+1);
1171 if (keyNbr <= ICLASS_KEYS_MAX) {
1172 memcpy(KEY, iClass_Key_Table[keyNbr], 8);
1173 } else {
1174 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
1175 errors = true;
1176 }
1177 } else {
1178 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
1179 errors = true;
1180 }
1181 cmdp += 2;
1182 break;
1183 case 'r':
1184 case 'R':
1185 rawkey = true;
1186 cmdp++;
1187 break;
1188 default:
1189 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
1190 errors = true;
1191 break;
1192 }
1193 if(errors) return usage_hf_iclass_readblock();
1194 }
1195
1196 if (cmdp < 4) return usage_hf_iclass_readblock();
1197
1198 return ReadBlock(KEY, blockno, keyType, elite, rawkey, true);
1199 }
1200
1201 int CmdHFiClass_loclass(const char *Cmd) {
1202 char opt = param_getchar(Cmd, 0);
1203
1204 if (strlen(Cmd)<1 || opt == 'h') {
1205 PrintAndLog("Usage: hf iclass loclass [options]");
1206 PrintAndLog("Options:");
1207 PrintAndLog("h Show this help");
1208 PrintAndLog("t Perform self-test");
1209 PrintAndLog("f <filename> Bruteforce iclass dumpfile");
1210 PrintAndLog(" An iclass dumpfile is assumed to consist of an arbitrary number of");
1211 PrintAndLog(" malicious CSNs, and their protocol responses");
1212 PrintAndLog(" The the binary format of the file is expected to be as follows: ");
1213 PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
1214 PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
1215 PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
1216 PrintAndLog(" ... totalling N*24 bytes");
1217 return 0;
1218 }
1219 char fileName[255] = {0};
1220 if(opt == 'f')
1221 {
1222 if(param_getstr(Cmd, 1, fileName) > 0)
1223 {
1224 return bruteforceFileNoKeys(fileName);
1225 }else
1226 {
1227 PrintAndLog("You must specify a filename");
1228 }
1229 }
1230 else if(opt == 't')
1231 {
1232 int errors = testCipherUtils();
1233 errors += testMAC();
1234 errors += doKeyTests(0);
1235 errors += testElite();
1236 if(errors)
1237 {
1238 prnlog("OBS! There were errors!!!");
1239 }
1240 return errors;
1241 }
1242
1243 return 0;
1244 }
1245
1246 void printIclassDumpContents(uint8_t *iclass_dump, uint8_t startblock, uint8_t endblock, size_t filesize) {
1247 uint8_t blockdata[8];
1248 uint8_t mem_config;
1249 memcpy(&mem_config, iclass_dump + 13,1);
1250 uint8_t maxmemcount;
1251 uint8_t filemaxblock = filesize / 8;
1252 if (mem_config & 0x80)
1253 maxmemcount = 255;
1254 else
1255 maxmemcount = 31;
1256 //PrintAndLog ("endblock: %d, filesize: %d, maxmemcount: %d, filemaxblock: %d", endblock,filesize, maxmemcount, filemaxblock);
1257
1258 if (startblock == 0)
1259 startblock = 6;
1260 if ((endblock > maxmemcount) || (endblock == 0))
1261 endblock = maxmemcount;
1262 if (endblock > filemaxblock)
1263 endblock = filemaxblock;
1264 int i = startblock;
1265 int j;
1266 while (i <= endblock){
1267 printf("Block |%02X| ",i);
1268 memcpy(blockdata,iclass_dump + (i * 8),8);
1269 for (j = 0;j < 8;j++)
1270 printf("%02X ",blockdata[j]);
1271 printf("|\n");
1272 i++;
1273 }
1274 }
1275
1276 int usage_hf_iclass_readtagfile() {
1277 PrintAndLog("Usage: hf iclass readtagfile <filename> [startblock] [endblock]");
1278 return 1;
1279 }
1280
1281 int CmdHFiClassReadTagFile(const char *Cmd) {
1282 int startblock = 0;
1283 int endblock = 0;
1284 char tempnum[5];
1285 FILE *f;
1286 char filename[FILE_PATH_SIZE];
1287 if (param_getstr(Cmd, 0, filename) < 1)
1288 return usage_hf_iclass_readtagfile();
1289 if (param_getstr(Cmd,1,(char *)&tempnum) < 1)
1290 startblock = 0;
1291 else
1292 sscanf(tempnum,"%d",&startblock);
1293
1294 if (param_getstr(Cmd,2,(char *)&tempnum) < 1)
1295 endblock = 0;
1296 else
1297 sscanf(tempnum,"%d",&endblock);
1298 // file handling and reading
1299 f = fopen(filename,"rb");
1300 if(!f) {
1301 PrintAndLog("Failed to read from file '%s'", filename);
1302 return 1;
1303 }
1304 fseek(f, 0, SEEK_END);
1305 long fsize = ftell(f);
1306 fseek(f, 0, SEEK_SET);
1307
1308 uint8_t *dump = malloc(fsize);
1309
1310
1311 size_t bytes_read = fread(dump, 1, fsize, f);
1312 fclose(f);
1313 uint8_t *csn = dump;
1314 printf("CSN [00] | %02X %02X %02X %02X %02X %02X %02X %02X |\n",csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
1315 // printIclassDumpInfo(dump);
1316 printIclassDumpContents(dump,startblock,endblock,bytes_read);
1317 free(dump);
1318 return 0;
1319 }
1320
1321 /*
1322 uint64_t xorcheck(uint64_t sdiv,uint64_t hdiv) {
1323 uint64_t new_div = 0x00;
1324 new_div ^= sdiv;
1325 new_div ^= hdiv;
1326 return new_div;
1327 }
1328
1329 uint64_t hexarray_to_uint64(uint8_t *key) {
1330 char temp[17];
1331 uint64_t uint_key;
1332 for (int i = 0;i < 8;i++)
1333 sprintf(&temp[(i *2)],"%02X",key[i]);
1334 temp[16] = '\0';
1335 if (sscanf(temp,"%016"llX,&uint_key) < 1)
1336 return 0;
1337 return uint_key;
1338 }
1339 */
1340 void HFiClassCalcDivKey(uint8_t *CSN, uint8_t *KEY, uint8_t *div_key, bool elite){
1341 uint8_t keytable[128] = {0};
1342 uint8_t key_index[8] = {0};
1343 if (elite) {
1344 uint8_t key_sel[8] = { 0 };
1345 uint8_t key_sel_p[8] = { 0 };
1346 hash2(KEY, keytable);
1347 hash1(CSN, key_index);
1348 for(uint8_t i = 0; i < 8 ; i++)
1349 key_sel[i] = keytable[key_index[i]] & 0xFF;
1350
1351 //Permute from iclass format to standard format
1352 permutekey_rev(key_sel, key_sel_p);
1353 diversifyKey(CSN, key_sel_p, div_key);
1354 } else {
1355 diversifyKey(CSN, KEY, div_key);
1356 }
1357 }
1358
1359 //when told CSN, oldkey, newkey, if new key is elite (elite), and if old key was elite (oldElite)
1360 //calculate and return xor_div_key (ready for a key write command)
1361 //print all div_keys if verbose
1362 static void HFiClassCalcNewKey(uint8_t *CSN, uint8_t *OLDKEY, uint8_t *NEWKEY, uint8_t *xor_div_key, bool elite, bool oldElite, bool verbose){
1363 uint8_t old_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1364 uint8_t new_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1365 //get old div key
1366 HFiClassCalcDivKey(CSN, OLDKEY, old_div_key, oldElite);
1367 //get new div key
1368 HFiClassCalcDivKey(CSN, NEWKEY, new_div_key, elite);
1369
1370 for (uint8_t i = 0; i < sizeof(old_div_key); i++){
1371 xor_div_key[i] = old_div_key[i] ^ new_div_key[i];
1372 }
1373 if (verbose) {
1374 printf("Old Div Key : %s\n",sprint_hex(old_div_key,8));
1375 printf("New Div Key : %s\n",sprint_hex(new_div_key,8));
1376 printf("Xor Div Key : %s\n",sprint_hex(xor_div_key,8));
1377 }
1378 }
1379
1380 int usage_hf_iclass_calc_newkey(void) {
1381 PrintAndLog("HELP : Manage iClass Keys in client memory:\n");
1382 PrintAndLog("Usage: hf iclass calc_newkey o <Old key> n <New key> s [csn] e");
1383 PrintAndLog(" Options:");
1384 PrintAndLog(" o <oldkey> : *specify a key as 16 hex symbols or a key number as 1 symbol");
1385 PrintAndLog(" n <newkey> : *specify a key as 16 hex symbols or a key number as 1 symbol");
1386 PrintAndLog(" s <csn> : specify a card Serial number to diversify the key (if omitted will attempt to read a csn)");
1387 PrintAndLog(" e : specify new key as elite calc");
1388 PrintAndLog(" ee : specify old and new key as elite calc");
1389 PrintAndLog("Samples:");
1390 PrintAndLog(" e key to e key given csn : hf iclass calcnewkey o 1122334455667788 n 2233445566778899 s deadbeafdeadbeaf ee");
1391 PrintAndLog(" std key to e key read csn: hf iclass calcnewkey o 1122334455667788 n 2233445566778899 e");
1392 PrintAndLog(" std to std read csn : hf iclass calcnewkey o 1122334455667788 n 2233445566778899");
1393 PrintAndLog("NOTE: * = required\n");
1394
1395 return 1;
1396 }
1397
1398 int CmdHFiClassCalcNewKey(const char *Cmd) {
1399 uint8_t OLDKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1400 uint8_t NEWKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1401 uint8_t xor_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1402 uint8_t CSN[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1403 uint8_t CCNR[12] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1404 uint8_t keyNbr = 0;
1405 uint8_t dataLen = 0;
1406 char tempStr[50] = {0};
1407 bool givenCSN = false;
1408 bool oldElite = false;
1409 bool elite = false;
1410 bool errors = false;
1411 uint8_t cmdp = 0;
1412 while(param_getchar(Cmd, cmdp) != 0x00)
1413 {
1414 switch(param_getchar(Cmd, cmdp))
1415 {
1416 case 'h':
1417 case 'H':
1418 return usage_hf_iclass_calc_newkey();
1419 case 'e':
1420 case 'E':
1421 dataLen = param_getstr(Cmd, cmdp, tempStr);
1422 if (dataLen==2)
1423 oldElite = true;
1424 elite = true;
1425 cmdp++;
1426 break;
1427 case 'n':
1428 case 'N':
1429 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
1430 if (dataLen == 16) {
1431 errors = param_gethex(tempStr, 0, NEWKEY, dataLen);
1432 } else if (dataLen == 1) {
1433 keyNbr = param_get8(Cmd, cmdp+1);
1434 if (keyNbr <= ICLASS_KEYS_MAX) {
1435 memcpy(NEWKEY, iClass_Key_Table[keyNbr], 8);
1436 } else {
1437 PrintAndLog("\nERROR: NewKey Nbr is invalid\n");
1438 errors = true;
1439 }
1440 } else {
1441 PrintAndLog("\nERROR: NewKey is incorrect length\n");
1442 errors = true;
1443 }
1444 cmdp += 2;
1445 break;
1446 case 'o':
1447 case 'O':
1448 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
1449 if (dataLen == 16) {
1450 errors = param_gethex(tempStr, 0, OLDKEY, dataLen);
1451 } else if (dataLen == 1) {
1452 keyNbr = param_get8(Cmd, cmdp+1);
1453 if (keyNbr <= ICLASS_KEYS_MAX) {
1454 memcpy(OLDKEY, iClass_Key_Table[keyNbr], 8);
1455 } else {
1456 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
1457 errors = true;
1458 }
1459 } else {
1460 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
1461 errors = true;
1462 }
1463 cmdp += 2;
1464 break;
1465 case 's':
1466 case 'S':
1467 givenCSN = true;
1468 if (param_gethex(Cmd, cmdp+1, CSN, 16))
1469 return usage_hf_iclass_calc_newkey();
1470 cmdp += 2;
1471 break;
1472 default:
1473 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
1474 errors = true;
1475 break;
1476 }
1477 if(errors) return usage_hf_iclass_calc_newkey();
1478 }
1479
1480 if (cmdp < 4) return usage_hf_iclass_calc_newkey();
1481
1482 if (!givenCSN)
1483 if (!select_only(CSN, CCNR, false, true))
1484 return 0;
1485
1486 HFiClassCalcNewKey(CSN, OLDKEY, NEWKEY, xor_div_key, elite, oldElite, true);
1487 return 0;
1488 }
1489
1490 static int loadKeys(char *filename) {
1491 FILE *f;
1492 f = fopen(filename,"rb");
1493 if(!f) {
1494 PrintAndLog("Failed to read from file '%s'", filename);
1495 return 0;
1496 }
1497 fseek(f, 0, SEEK_END);
1498 long fsize = ftell(f);
1499 fseek(f, 0, SEEK_SET);
1500
1501 uint8_t *dump = malloc(fsize);
1502
1503 size_t bytes_read = fread(dump, 1, fsize, f);
1504 fclose(f);
1505 if (bytes_read > ICLASS_KEYS_MAX * 8){
1506 PrintAndLog("File is too long to load - bytes: %u", bytes_read);
1507 free(dump);
1508 return 0;
1509 }
1510 uint8_t i = 0;
1511 for (; i < bytes_read/8; i++){
1512 memcpy(iClass_Key_Table[i],dump+(i*8),8);
1513 }
1514 free(dump);
1515 PrintAndLog("%u keys loaded", i);
1516 return 1;
1517 }
1518
1519 static int saveKeys(char *filename) {
1520 FILE *f;
1521 f = fopen(filename,"wb");
1522 if (f == NULL) {
1523 printf("error opening file %s\n",filename);
1524 return 0;
1525 }
1526 for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){
1527 if (fwrite(iClass_Key_Table[i],8,1,f) != 1){
1528 PrintAndLog("save key failed to write to file: %s", filename);
1529 break;
1530 }
1531 }
1532 fclose(f);
1533 return 0;
1534 }
1535
1536 static int printKeys(void) {
1537 PrintAndLog("");
1538 for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){
1539 PrintAndLog("%u: %s",i,sprint_hex(iClass_Key_Table[i],8));
1540 }
1541 PrintAndLog("");
1542 return 0;
1543 }
1544
1545 int usage_hf_iclass_managekeys(void) {
1546 PrintAndLog("HELP : Manage iClass Keys in client memory:\n");
1547 PrintAndLog("Usage: hf iclass managekeys n [keynbr] k [key] f [filename] s l p\n");
1548 PrintAndLog(" Options:");
1549 PrintAndLog(" n <keynbr> : specify the keyNbr to set in memory");
1550 PrintAndLog(" k <key> : set a key in memory");
1551 PrintAndLog(" f <filename>: specify a filename to use with load or save operations");
1552 PrintAndLog(" s : save keys in memory to file specified by filename");
1553 PrintAndLog(" l : load keys to memory from file specified by filename");
1554 PrintAndLog(" p : print keys loaded into memory\n");
1555 PrintAndLog("Samples:");
1556 PrintAndLog(" set key : hf iclass managekeys n 0 k 1122334455667788");
1557 PrintAndLog(" save key file: hf iclass managekeys f mykeys.bin s");
1558 PrintAndLog(" load key file: hf iclass managekeys f mykeys.bin l");
1559 PrintAndLog(" print keys : hf iclass managekeys p\n");
1560 return 0;
1561 }
1562
1563 int CmdHFiClassManageKeys(const char *Cmd) {
1564 uint8_t keyNbr = 0;
1565 uint8_t dataLen = 0;
1566 uint8_t KEY[8] = {0};
1567 char filename[FILE_PATH_SIZE];
1568 uint8_t fileNameLen = 0;
1569 bool errors = false;
1570 uint8_t operation = 0;
1571 char tempStr[20];
1572 uint8_t cmdp = 0;
1573
1574 while(param_getchar(Cmd, cmdp) != 0x00)
1575 {
1576 switch(param_getchar(Cmd, cmdp))
1577 {
1578 case 'h':
1579 case 'H':
1580 return usage_hf_iclass_managekeys();
1581 case 'f':
1582 case 'F':
1583 fileNameLen = param_getstr(Cmd, cmdp+1, filename);
1584 if (fileNameLen < 1) {
1585 PrintAndLog("No filename found after f");
1586 errors = true;
1587 }
1588 cmdp += 2;
1589 break;
1590 case 'n':
1591 case 'N':
1592 keyNbr = param_get8(Cmd, cmdp+1);
1593 if (keyNbr < 0) {
1594 PrintAndLog("Wrong block number");
1595 errors = true;
1596 }
1597 cmdp += 2;
1598 break;
1599 case 'k':
1600 case 'K':
1601 operation += 3; //set key
1602 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
1603 if (dataLen == 16) { //ul-c or ev1/ntag key length
1604 errors = param_gethex(tempStr, 0, KEY, dataLen);
1605 } else {
1606 PrintAndLog("\nERROR: Key is incorrect length\n");
1607 errors = true;
1608 }
1609 cmdp += 2;
1610 break;
1611 case 'p':
1612 case 'P':
1613 operation += 4; //print keys in memory
1614 cmdp++;
1615 break;
1616 case 'l':
1617 case 'L':
1618 operation += 5; //load keys from file
1619 cmdp++;
1620 break;
1621 case 's':
1622 case 'S':
1623 operation += 6; //save keys to file
1624 cmdp++;
1625 break;
1626 default:
1627 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
1628 errors = true;
1629 break;
1630 }
1631 if(errors) return usage_hf_iclass_managekeys();
1632 }
1633 if (operation == 0){
1634 PrintAndLog("no operation specified (load, save, or print)\n");
1635 return usage_hf_iclass_managekeys();
1636 }
1637 if (operation > 6){
1638 PrintAndLog("Too many operations specified\n");
1639 return usage_hf_iclass_managekeys();
1640 }
1641 if (operation > 4 && fileNameLen == 0){
1642 PrintAndLog("You must enter a filename when loading or saving\n");
1643 return usage_hf_iclass_managekeys();
1644 }
1645
1646 switch (operation){
1647 case 3: memcpy(iClass_Key_Table[keyNbr], KEY, 8); return 1;
1648 case 4: return printKeys();
1649 case 5: return loadKeys(filename);
1650 case 6: return saveKeys(filename);
1651 break;
1652 }
1653 return 0;
1654 }
1655
1656 static command_t CommandTable[] =
1657 {
1658 {"help", CmdHelp, 1, "This help"},
1659 {"calcnewkey", CmdHFiClassCalcNewKey, 1, "[options..] Calc Diversified keys (blocks 3 & 4) to write new keys"},
1660 {"clone", CmdHFiClassCloneTag, 0, "[options..] Authenticate and Clone from iClass bin file"},
1661 {"decrypt", CmdHFiClassDecrypt, 1, "[f <fname>] Decrypt tagdump" },
1662 {"dump", CmdHFiClassReader_Dump, 0, "[options..] Authenticate and Dump iClass tag's AA1"},
1663 {"eload", CmdHFiClassELoad, 0, "[f <fname>] (experimental) Load data into iClass emulator memory"},
1664 {"encryptblk", CmdHFiClassEncryptBlk, 1, "<BlockData> Encrypt given block data"},
1665 {"list", CmdHFiClassList, 0, " (Deprecated) List iClass history"},
1666 {"loclass", CmdHFiClass_loclass, 1, "[options..] Use loclass to perform bruteforce of reader attack dump"},
1667 {"managekeys", CmdHFiClassManageKeys, 1, "[options..] Manage the keys to use with iClass"},
1668 {"readblk", CmdHFiClass_ReadBlock, 0, "[options..] Authenticate and Read iClass block"},
1669 {"reader", CmdHFiClassReader, 0, " Read an iClass tag"},
1670 {"readtagfile", CmdHFiClassReadTagFile, 1, "[options..] Display Content from tagfile"},
1671 {"replay", CmdHFiClassReader_Replay, 0, "<mac> Read an iClass tag via Reply Attack"},
1672 {"sim", CmdHFiClassSim, 0, "[options..] Simulate iClass tag"},
1673 {"snoop", CmdHFiClassSnoop, 0, " Eavesdrop iClass communication"},
1674 {"writeblk", CmdHFiClass_WriteBlock, 0, "[options..] Authenticate and Write iClass block"},
1675 {NULL, NULL, 0, NULL}
1676 };
1677
1678 int CmdHFiClass(const char *Cmd)
1679 {
1680 CmdsParse(CommandTable, Cmd);
1681 return 0;
1682 }
1683
1684 int CmdHelp(const char *Cmd)
1685 {
1686 CmdsHelp(CommandTable);
1687 return 0;
1688 }
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