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[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 #include "cmdhf.h"
36
37 #define llX PRIx64
38
39 static int CmdHelp(const char *Cmd);
40
41 #define ICLASS_KEYS_MAX 8
42 static uint8_t iClass_Key_Table[ICLASS_KEYS_MAX][8] = {
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 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }
51 };
52
53 typedef struct iclass_block {
54 uint8_t d[8];
55 } iclass_block_t;
56
57 int xorbits_8(uint8_t val) {
58 uint8_t res = val ^ (val >> 1); //1st pass
59 res = res ^ (res >> 1); // 2nd pass
60 res = res ^ (res >> 2); // 3rd pass
61 res = res ^ (res >> 4); // 4th pass
62 return res & 1;
63 }
64
65 int CmdHFiClassList(const char *Cmd) {
66 //PrintAndLog("Deprecated command, use 'hf list iclass' instead");
67 CmdHFList("iclass");
68 return 0;
69 }
70
71 int CmdHFiClassSnoop(const char *Cmd) {
72 UsbCommand c = {CMD_SNOOP_ICLASS};
73 SendCommand(&c);
74 return 0;
75 }
76
77 int usage_hf_iclass_sim(void) {
78 PrintAndLog("Usage: hf iclass sim <option> [CSN]");
79 PrintAndLog(" options");
80 PrintAndLog(" 0 <CSN> simulate the given CSN");
81 PrintAndLog(" 1 simulate default CSN");
82 PrintAndLog(" 2 Reader-attack, gather reader responses to extract elite key");
83 PrintAndLog(" 3 Full simulation using emulator memory (see 'hf iclass eload')");
84 PrintAndLog(" example: hf iclass sim 0 031FEC8AF7FF12E0");
85 PrintAndLog(" example: hf iclass sim 2");
86 PrintAndLog(" example: hf iclass eload 'tagdump.bin'");
87 PrintAndLog(" hf iclass sim 3");
88 return 0;
89 }
90
91 #define NUM_CSNS 15
92 int CmdHFiClassSim(const char *Cmd) {
93 uint8_t simType = 0;
94 uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0};
95
96 if (strlen(Cmd)<1) {
97 return usage_hf_iclass_sim();
98 }
99 simType = param_get8ex(Cmd, 0, 0, 10);
100
101 if(simType == 0)
102 {
103 if (param_gethex(Cmd, 1, CSN, 16)) {
104 PrintAndLog("A CSN should consist of 16 HEX symbols");
105 return usage_hf_iclass_sim();
106 }
107
108 PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8));
109 }
110 if(simType > 3)
111 {
112 PrintAndLog("Undefined simptype %d", simType);
113 return usage_hf_iclass_sim();
114 }
115
116 uint8_t numberOfCSNs=0;
117 if(simType == 2)
118 {
119 UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,NUM_CSNS}};
120 UsbCommand resp = {0};
121
122 uint8_t csns[8*NUM_CSNS] = {
123 0x00, 0x0B, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0,
124 0x00, 0x04, 0x0E, 0x08, 0xF7, 0xFF, 0x12, 0xE0,
125 0x00, 0x09, 0x0D, 0x05, 0xF7, 0xFF, 0x12, 0xE0,
126 0x00, 0x0A, 0x0C, 0x06, 0xF7, 0xFF, 0x12, 0xE0,
127 0x00, 0x0F, 0x0B, 0x03, 0xF7, 0xFF, 0x12, 0xE0,
128 0x00, 0x08, 0x0A, 0x0C, 0xF7, 0xFF, 0x12, 0xE0,
129 0x00, 0x0D, 0x09, 0x09, 0xF7, 0xFF, 0x12, 0xE0,
130 0x00, 0x0E, 0x08, 0x0A, 0xF7, 0xFF, 0x12, 0xE0,
131 0x00, 0x03, 0x07, 0x17, 0xF7, 0xFF, 0x12, 0xE0,
132 0x00, 0x3C, 0x06, 0xE0, 0xF7, 0xFF, 0x12, 0xE0,
133 0x00, 0x01, 0x05, 0x1D, 0xF7, 0xFF, 0x12, 0xE0,
134 0x00, 0x02, 0x04, 0x1E, 0xF7, 0xFF, 0x12, 0xE0,
135 0x00, 0x07, 0x03, 0x1B, 0xF7, 0xFF, 0x12, 0xE0,
136 0x00, 0x00, 0x02, 0x24, 0xF7, 0xFF, 0x12, 0xE0,
137 0x00, 0x05, 0x01, 0x21, 0xF7, 0xFF, 0x12, 0xE0 };
138
139 memcpy(c.d.asBytes, csns, 8*NUM_CSNS);
140
141 SendCommand(&c);
142 if (!WaitForResponseTimeout(CMD_ACK, &resp, -1)) {
143 PrintAndLog("Command timed out");
144 return 0;
145 }
146
147 uint8_t num_mac_responses = resp.arg[1];
148 PrintAndLog("Mac responses: %d MACs obtained (should be %d)", num_mac_responses,NUM_CSNS);
149
150 size_t datalen = NUM_CSNS*24;
151 /*
152 * Now, time to dump to file. We'll use this format:
153 * <8-byte CSN><8-byte CC><4 byte NR><4 byte MAC>....
154 * So, it should wind up as
155 * 8 * 24 bytes.
156 *
157 * The returndata from the pm3 is on the following format
158 * <4 byte NR><4 byte MAC>
159 * CC are all zeroes, CSN is the same as was sent in
160 **/
161 void* dump = malloc(datalen);
162 memset(dump,0,datalen);//<-- Need zeroes for the CC-field
163 uint8_t i = 0;
164 for(i = 0 ; i < NUM_CSNS ; i++)
165 {
166 memcpy(dump+i*24, csns+i*8,8); //CSN
167 //8 zero bytes here...
168 //Then comes NR_MAC (eight bytes from the response)
169 memcpy(dump+i*24+16,resp.d.asBytes+i*8,8);
170
171 }
172 /** Now, save to dumpfile **/
173 saveFile("iclass_mac_attack", "bin", dump,datalen);
174 free(dump);
175 }else
176 {
177 UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,numberOfCSNs}};
178 memcpy(c.d.asBytes, CSN, 8);
179 SendCommand(&c);
180 }
181
182 return 0;
183 }
184
185 int HFiClassReader(const char *Cmd, bool loop, bool verbose) {
186 bool tagFound = false;
187 UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_CSN|
188 FLAG_ICLASS_READER_CONF|FLAG_ICLASS_READER_AA}};
189 // loop in client not device - else on windows have a communication error
190 c.arg[0] |= FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_ONE_TRY;
191 UsbCommand resp;
192 while(!ukbhit()){
193 SendCommand(&c);
194 if (WaitForResponseTimeout(CMD_ACK,&resp, 4500)) {
195 uint8_t readStatus = resp.arg[0] & 0xff;
196 uint8_t *data = resp.d.asBytes;
197
198 if (verbose)
199 PrintAndLog("Readstatus:%02x", readStatus);
200 if( readStatus == 0){
201 //Aborted
202 if (verbose) PrintAndLog("Quitting...");
203 return 0;
204 }
205 if( readStatus & FLAG_ICLASS_READER_CSN){
206 PrintAndLog("CSN: %s",sprint_hex(data,8));
207 tagFound = true;
208 }
209 if( readStatus & FLAG_ICLASS_READER_CC) PrintAndLog("CC: %s",sprint_hex(data+16,8));
210 if( readStatus & FLAG_ICLASS_READER_CONF){
211 printIclassDumpInfo(data);
212 }
213 if (tagFound && !loop) return 1;
214 } else {
215 if (verbose) PrintAndLog("Command execute timeout");
216 }
217 if (!loop) break;
218 }
219 return 0;
220 }
221
222 int CmdHFiClassReader(const char *Cmd) {
223 return HFiClassReader(Cmd, true, true);
224 }
225
226 int CmdHFiClassReader_Replay(const char *Cmd) {
227 uint8_t readerType = 0;
228 uint8_t MAC[4]={0x00, 0x00, 0x00, 0x00};
229
230 if (strlen(Cmd)<1) {
231 PrintAndLog("Usage: hf iclass replay <MAC>");
232 PrintAndLog(" sample: hf iclass replay 00112233");
233 return 0;
234 }
235
236 if (param_gethex(Cmd, 0, MAC, 8)) {
237 PrintAndLog("MAC must include 8 HEX symbols");
238 return 1;
239 }
240
241 UsbCommand c = {CMD_READER_ICLASS_REPLAY, {readerType}};
242 memcpy(c.d.asBytes, MAC, 4);
243 SendCommand(&c);
244
245 return 0;
246 }
247
248 int iclassEmlSetMem(uint8_t *data, int blockNum, int blocksCount) {
249 UsbCommand c = {CMD_MIFARE_EML_MEMSET, {blockNum, blocksCount, 0}};
250 memcpy(c.d.asBytes, data, blocksCount * 16);
251 SendCommand(&c);
252 return 0;
253 }
254
255 int hf_iclass_eload_usage(void) {
256 PrintAndLog("Loads iclass tag-dump into emulator memory on device");
257 PrintAndLog("Usage: hf iclass eload f <filename>");
258 PrintAndLog("");
259 PrintAndLog("Example: hf iclass eload f iclass_tagdump-aa162d30f8ff12f1.bin");
260 return 0;
261 }
262
263 int CmdHFiClassELoad(const char *Cmd) {
264
265 char opt = param_getchar(Cmd, 0);
266 if (strlen(Cmd)<1 || opt == 'h')
267 return hf_iclass_eload_usage();
268
269 //File handling and reading
270 FILE *f;
271 char filename[FILE_PATH_SIZE];
272 if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0) {
273 f = fopen(filename, "rb");
274 } else {
275 return hf_iclass_eload_usage();
276 }
277
278 if(!f) {
279 PrintAndLog("Failed to read from file '%s'", filename);
280 return 1;
281 }
282
283 fseek(f, 0, SEEK_END);
284 long fsize = ftell(f);
285 fseek(f, 0, SEEK_SET);
286
287 if (fsize < 0) {
288 prnlog("Error, when getting filesize");
289 return 1;
290 }
291
292
293 uint8_t *dump = malloc(fsize);
294
295 size_t bytes_read = fread(dump, 1, fsize, f);
296 fclose(f);
297
298 printIclassDumpInfo(dump);
299 //Validate
300
301 if (bytes_read < fsize)
302 {
303 prnlog("Error, could only read %d bytes (should be %d)",bytes_read, fsize );
304 free(dump);
305 return 1;
306 }
307 //Send to device
308 uint32_t bytes_sent = 0;
309 uint32_t bytes_remaining = bytes_read;
310
311 while(bytes_remaining > 0){
312 uint32_t bytes_in_packet = MIN(USB_CMD_DATA_SIZE, bytes_remaining);
313 UsbCommand c = {CMD_ICLASS_EML_MEMSET, {bytes_sent,bytes_in_packet,0}};
314 memcpy(c.d.asBytes, dump, bytes_in_packet);
315 SendCommand(&c);
316 bytes_remaining -= bytes_in_packet;
317 bytes_sent += bytes_in_packet;
318 }
319 free(dump);
320 PrintAndLog("Sent %d bytes of data to device emulator memory", bytes_sent);
321 return 0;
322 }
323
324 static int readKeyfile(const char *filename, size_t len, uint8_t* buffer) {
325 FILE *f = fopen(filename, "rb");
326 if(!f) {
327 PrintAndLog("Failed to read from file '%s'", filename);
328 return 1;
329 }
330 fseek(f, 0, SEEK_END);
331 long fsize = ftell(f);
332 fseek(f, 0, SEEK_SET);
333 size_t bytes_read = fread(buffer, 1, len, f);
334 fclose(f);
335 if(fsize != len)
336 {
337 PrintAndLog("Warning, file size is %d, expected %d", fsize, len);
338 return 1;
339 }
340 if(bytes_read != len)
341 {
342 PrintAndLog("Warning, could only read %d bytes, expected %d" ,bytes_read, len);
343 return 1;
344 }
345 return 0;
346 }
347
348 int usage_hf_iclass_decrypt(void) {
349 PrintAndLog("Usage: hf iclass decrypt f <tagdump>");
350 PrintAndLog("");
351 PrintAndLog("OBS! In order to use this function, the file 'iclass_decryptionkey.bin' must reside");
352 PrintAndLog("in the working directory. The file should be 16 bytes binary data");
353 PrintAndLog("");
354 PrintAndLog("example: hf iclass decrypt f tagdump_12312342343.bin");
355 PrintAndLog("");
356 PrintAndLog("OBS! This is pretty stupid implementation, it tries to decrypt every block after block 6. ");
357 PrintAndLog("Correct behaviour would be to decrypt only the application areas where the key is valid,");
358 PrintAndLog("which is defined by the configuration block.");
359 return 1;
360 }
361
362 int CmdHFiClassDecrypt(const char *Cmd) {
363 uint8_t key[16] = { 0 };
364 if(readKeyfile("iclass_decryptionkey.bin", 16, key))
365 {
366 usage_hf_iclass_decrypt();
367 return 1;
368 }
369 PrintAndLog("Decryption file found... ");
370 char opt = param_getchar(Cmd, 0);
371 if (strlen(Cmd)<1 || opt == 'h')
372 return usage_hf_iclass_decrypt();
373
374 //Open the tagdump-file
375 FILE *f;
376 char filename[FILE_PATH_SIZE];
377 if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0)
378 {
379 f = fopen(filename, "rb");
380 }else{
381 return usage_hf_iclass_decrypt();
382 }
383
384 fseek(f, 0, SEEK_END);
385 long fsize = ftell(f);
386 fseek(f, 0, SEEK_SET);
387 uint8_t enc_dump[8] = {0};
388 uint8_t *decrypted = malloc(fsize);
389 des3_context ctx = { DES_DECRYPT ,{ 0 } };
390 des3_set2key_dec( &ctx, key);
391 size_t bytes_read = fread(enc_dump, 1, 8, f);
392
393 //Use the first block (CSN) for filename
394 char outfilename[FILE_PATH_SIZE] = { 0 };
395 snprintf(outfilename,FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x-decrypted",
396 enc_dump[0],enc_dump[1],enc_dump[2],enc_dump[3],
397 enc_dump[4],enc_dump[5],enc_dump[6],enc_dump[7]);
398
399 size_t blocknum =0;
400 while(bytes_read == 8)
401 {
402 if(blocknum < 7)
403 {
404 memcpy(decrypted+(blocknum*8), enc_dump, 8);
405 }else{
406 des3_crypt_ecb(&ctx, enc_dump,decrypted +(blocknum*8) );
407 }
408 printvar("decrypted block", decrypted +(blocknum*8), 8);
409 bytes_read = fread(enc_dump, 1, 8, f);
410 blocknum++;
411 }
412 fclose(f);
413
414 saveFile(outfilename,"bin", decrypted, blocknum*8);
415
416 free(decrypted);
417 return 0;
418 }
419
420 int usage_hf_iclass_encrypt(void) {
421 PrintAndLog("Usage: hf iclass encrypt <BlockData>");
422 PrintAndLog("");
423 PrintAndLog("OBS! In order to use this function, the file 'iclass_decryptionkey.bin' must reside");
424 PrintAndLog("in the working directory. The file should be 16 bytes binary data");
425 PrintAndLog("");
426 PrintAndLog("example: hf iclass encrypt 0102030405060708");
427 PrintAndLog("");
428 return 0;
429 }
430
431 static int iClassEncryptBlkData(uint8_t *blkData) {
432 uint8_t key[16] = { 0 };
433 if(readKeyfile("iclass_decryptionkey.bin", 16, key))
434 {
435 usage_hf_iclass_encrypt();
436 return 1;
437 }
438 PrintAndLog("Decryption file found... ");
439
440 uint8_t encryptedData[16];
441 uint8_t *encrypted = encryptedData;
442 des3_context ctx = { DES_DECRYPT ,{ 0 } };
443 des3_set2key_enc( &ctx, key);
444
445 des3_crypt_ecb(&ctx, blkData,encrypted);
446 //printvar("decrypted block", decrypted, 8);
447 memcpy(blkData,encrypted,8);
448
449 return 1;
450 }
451
452 int CmdHFiClassEncryptBlk(const char *Cmd) {
453 uint8_t blkData[8] = {0};
454 char opt = param_getchar(Cmd, 0);
455 if (strlen(Cmd)<1 || opt == 'h')
456 return usage_hf_iclass_encrypt();
457
458 //get the bytes to encrypt
459 if (param_gethex(Cmd, 0, blkData, 16))
460 {
461 PrintAndLog("BlockData must include 16 HEX symbols");
462 return 0;
463 }
464 if (!iClassEncryptBlkData(blkData)) return 0;
465
466 printvar("encrypted block", blkData, 8);
467 return 1;
468 }
469
470 void Calc_wb_mac(uint8_t blockno, uint8_t *data, uint8_t *div_key, uint8_t MAC[4]) {
471 uint8_t WB[9];
472 WB[0] = blockno;
473 memcpy(WB + 1,data,8);
474 doMAC_N(WB,sizeof(WB),div_key,MAC);
475 //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]);
476 }
477
478 static bool select_only(uint8_t *CSN, uint8_t *CCNR, bool use_credit_key, bool verbose) {
479 UsbCommand resp;
480
481 UsbCommand c = {CMD_READER_ICLASS, {0}};
482 c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_CC | FLAG_ICLASS_READER_ONE_TRY;
483 if (use_credit_key)
484 c.arg[0] |= FLAG_ICLASS_READER_CEDITKEY;
485
486 clearCommandBuffer();
487 SendCommand(&c);
488 if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
489 {
490 PrintAndLog("Command execute timeout");
491 return false;
492 }
493
494 uint8_t isOK = resp.arg[0] & 0xff;
495 uint8_t *data = resp.d.asBytes;
496
497 memcpy(CSN,data,8);
498 if (CCNR!=NULL)memcpy(CCNR,data+16,8);
499 if(isOK > 0)
500 {
501 if (verbose) PrintAndLog("CSN: %s",sprint_hex(CSN,8));
502 }
503 if(isOK <= 1){
504 PrintAndLog("Failed to obtain CC! Aborting");
505 return false;
506 }
507 return true;
508 }
509
510 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) {
511 uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
512 uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
513
514 if (!select_only(CSN, CCNR, use_credit_key, verbose))
515 return false;
516
517 //get div_key
518 if(rawkey)
519 memcpy(div_key, KEY, 8);
520 else
521 HFiClassCalcDivKey(CSN, KEY, div_key, elite);
522 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]);
523
524 doMAC(CCNR, div_key, MAC);
525 UsbCommand resp;
526 UsbCommand d = {CMD_ICLASS_AUTHENTICATION, {0}};
527 memcpy(d.d.asBytes, MAC, 4);
528 clearCommandBuffer();
529 SendCommand(&d);
530 if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
531 {
532 PrintAndLog("Auth Command execute timeout");
533 return false;
534 }
535 uint8_t isOK = resp.arg[0] & 0xff;
536 if (!isOK) {
537 PrintAndLog("Authentication error");
538 return false;
539 }
540 return true;
541 }
542
543 int usage_hf_iclass_dump(void) {
544 PrintAndLog("Usage: hf iclass dump f <fileName> k <Key> c <CreditKey> e|r\n");
545 PrintAndLog("Options:");
546 PrintAndLog(" f <filename> : specify a filename to save dump to");
547 PrintAndLog(" k <Key> : *Access Key as 16 hex symbols or 1 hex to select key from memory");
548 PrintAndLog(" c <CreditKey>: Credit Key as 16 hex symbols or 1 hex to select key from memory");
549 PrintAndLog(" e : If 'e' is specified, the key is interpreted as the 16 byte");
550 PrintAndLog(" Custom Key (KCus), which can be obtained via reader-attack");
551 PrintAndLog(" See 'hf iclass sim 2'. This key should be on iclass-format");
552 PrintAndLog(" r : If 'r' is specified, the key is interpreted as raw block 3/4");
553 PrintAndLog(" NOTE: * = required");
554 PrintAndLog("Samples:");
555 PrintAndLog(" hf iclass dump k 001122334455667B");
556 PrintAndLog(" hf iclass dump k AAAAAAAAAAAAAAAA c 001122334455667B");
557 PrintAndLog(" hf iclass dump k AAAAAAAAAAAAAAAA e");
558 return 0;
559 }
560
561 int CmdHFiClassReader_Dump(const char *Cmd) {
562
563 uint8_t MAC[4] = {0x00,0x00,0x00,0x00};
564 uint8_t div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
565 uint8_t c_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
566 uint8_t blockno = 0;
567 uint8_t numblks = 0;
568 uint8_t maxBlk = 31;
569 uint8_t app_areas = 1;
570 uint8_t kb = 2;
571 uint8_t KEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
572 uint8_t CreditKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
573 uint8_t keyNbr = 0;
574 uint8_t dataLen = 0;
575 uint8_t fileNameLen = 0;
576 char filename[FILE_PATH_SIZE]={0};
577 char tempStr[50] = {0};
578 bool have_debit_key = false;
579 bool have_credit_key = false;
580 bool use_credit_key = false;
581 bool elite = false;
582 bool rawkey = false;
583 bool errors = false;
584 uint8_t cmdp = 0;
585
586 while(param_getchar(Cmd, cmdp) != 0x00)
587 {
588 switch(param_getchar(Cmd, cmdp))
589 {
590 case 'h':
591 case 'H':
592 return usage_hf_iclass_dump();
593 case 'c':
594 case 'C':
595 have_credit_key = true;
596 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
597 if (dataLen == 16) {
598 errors = param_gethex(tempStr, 0, CreditKEY, dataLen);
599 } else if (dataLen == 1) {
600 keyNbr = param_get8(Cmd, cmdp+1);
601 if (keyNbr <= ICLASS_KEYS_MAX) {
602 memcpy(CreditKEY, iClass_Key_Table[keyNbr], 8);
603 } else {
604 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
605 errors = true;
606 }
607 } else {
608 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
609 errors = true;
610 }
611 cmdp += 2;
612 break;
613 case 'e':
614 case 'E':
615 elite = true;
616 cmdp++;
617 break;
618 case 'f':
619 case 'F':
620 fileNameLen = param_getstr(Cmd, cmdp+1, filename);
621 if (fileNameLen < 1) {
622 PrintAndLog("No filename found after f");
623 errors = true;
624 }
625 cmdp += 2;
626 break;
627 case 'k':
628 case 'K':
629 have_debit_key = true;
630 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
631 if (dataLen == 16) {
632 errors = param_gethex(tempStr, 0, KEY, dataLen);
633 } else if (dataLen == 1) {
634 keyNbr = param_get8(Cmd, cmdp+1);
635 if (keyNbr <= ICLASS_KEYS_MAX) {
636 memcpy(KEY, iClass_Key_Table[keyNbr], 8);
637 } else {
638 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
639 errors = true;
640 }
641 } else {
642 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
643 errors = true;
644 }
645 cmdp += 2;
646 break;
647 case 'r':
648 case 'R':
649 rawkey = true;
650 cmdp++;
651 break;
652 default:
653 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
654 errors = true;
655 break;
656 }
657 if(errors) return usage_hf_iclass_dump();
658 }
659
660 if (cmdp < 2) return usage_hf_iclass_dump();
661 // if no debit key given try credit key on AA1 (not for iclass but for some picopass this will work)
662 if (!have_debit_key && have_credit_key) use_credit_key = true;
663
664 //get config and first 3 blocks
665 UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_CSN |
666 FLAG_ICLASS_READER_CONF | FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_ONE_TRY}};
667 UsbCommand resp;
668 uint8_t tag_data[255*8];
669
670 clearCommandBuffer();
671 SendCommand(&c);
672 if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) {
673 PrintAndLog("Command execute timeout");
674 ul_switch_off_field();
675 return 0;
676 }
677 uint8_t readStatus = resp.arg[0] & 0xff;
678 uint8_t * data = resp.d.asBytes;
679
680 if(readStatus == 0){
681 PrintAndLog("No tag found...");
682 ul_switch_off_field();
683 return 0;
684 }
685 if( readStatus & (FLAG_ICLASS_READER_CSN|FLAG_ICLASS_READER_CONF|FLAG_ICLASS_READER_CC)){
686 memcpy(tag_data, data, 8*3);
687 blockno+=2; // 2 to force re-read of block 2 later. (seems to respond differently..)
688 numblks = data[8];
689 getMemConfig(data[13], data[12], &maxBlk, &app_areas, &kb);
690 // large memory - not able to dump pages currently
691 if (numblks > maxBlk) numblks = maxBlk;
692 }
693 ul_switch_off_field();
694 // authenticate debit key and get div_key - later store in dump block 3
695 if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, false)){
696 //try twice - for some reason it sometimes fails the first time...
697 if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, false)){
698 ul_switch_off_field();
699 return 0;
700 }
701 }
702
703 // begin dump
704 UsbCommand w = {CMD_ICLASS_DUMP, {blockno, numblks-blockno+1}};
705 clearCommandBuffer();
706 SendCommand(&w);
707 if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) {
708 PrintAndLog("Command execute time-out 1");
709 ul_switch_off_field();
710 return 1;
711 }
712 uint32_t blocksRead = resp.arg[1];
713 uint8_t isOK = resp.arg[0] & 0xff;
714 if (!isOK && !blocksRead) {
715 PrintAndLog("Read Block Failed");
716 ul_switch_off_field();
717 return 0;
718 }
719 uint32_t startindex = resp.arg[2];
720 if (blocksRead*8 > sizeof(tag_data)-(blockno*8)) {
721 PrintAndLog("Data exceeded Buffer size!");
722 blocksRead = (sizeof(tag_data)/8) - blockno;
723 }
724 // response ok - now get bigbuf content of the dump
725 GetFromBigBuf(tag_data+(blockno*8), blocksRead*8, startindex);
726 WaitForResponse(CMD_ACK,NULL);
727 size_t gotBytes = blocksRead*8 + blockno*8;
728
729 // try AA2
730 if (have_credit_key) {
731 //turn off hf field before authenticating with different key
732 ul_switch_off_field();
733 memset(MAC,0,4);
734 // AA2 authenticate credit key and git c_div_key - later store in dump block 4
735 if (!select_and_auth(CreditKEY, MAC, c_div_key, true, false, false, false)){
736 //try twice - for some reason it sometimes fails the first time...
737 if (!select_and_auth(CreditKEY, MAC, c_div_key, true, false, false, false)){
738 ul_switch_off_field();
739 return 0;
740 }
741 }
742 // do we still need to read more block? (aa2 enabled?)
743 if (maxBlk > blockno+numblks+1) {
744 // setup dump and start
745 w.arg[0] = blockno + blocksRead;
746 w.arg[1] = maxBlk - (blockno + blocksRead);
747 clearCommandBuffer();
748 SendCommand(&w);
749 if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) {
750 PrintAndLog("Command execute timeout 2");
751 ul_switch_off_field();
752 return 0;
753 }
754 uint8_t isOK = resp.arg[0] & 0xff;
755 blocksRead = resp.arg[1];
756 if (!isOK && !blocksRead) {
757 PrintAndLog("Read Block Failed 2");
758 ul_switch_off_field();
759 return 0;
760 }
761
762 startindex = resp.arg[2];
763 if (blocksRead*8 > sizeof(tag_data)-gotBytes) {
764 PrintAndLog("Data exceeded Buffer size!");
765 blocksRead = (sizeof(tag_data) - gotBytes)/8;
766 }
767 // get dumped data from bigbuf
768 GetFromBigBuf(tag_data+gotBytes, blocksRead*8, startindex);
769 WaitForResponse(CMD_ACK,NULL);
770
771 gotBytes += blocksRead*8;
772 } else { //field is still on - turn it off...
773 ul_switch_off_field();
774 }
775 }
776
777 // add diversified keys to dump
778 if (have_debit_key) memcpy(tag_data+(3*8),div_key,8);
779 if (have_credit_key) memcpy(tag_data+(4*8),c_div_key,8);
780 // print the dump
781 printf("CSN |00| %02X %02X %02X %02X %02X %02X %02X %02X |\n",tag_data[0],tag_data[1],tag_data[2]
782 ,tag_data[3],tag_data[4],tag_data[5],tag_data[6],tag_data[7]);
783 printIclassDumpContents(tag_data, 1, (gotBytes/8)-1, gotBytes-8);
784
785 if (filename[0] == 0){
786 snprintf(filename, FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x",
787 tag_data[0],tag_data[1],tag_data[2],tag_data[3],
788 tag_data[4],tag_data[5],tag_data[6],tag_data[7]);
789 }
790
791 // save the dump to .bin file
792 PrintAndLog("Saving dump file - %d blocks read", gotBytes/8);
793 saveFile(filename, "bin", tag_data, gotBytes);
794 return 1;
795 }
796
797 static int WriteBlock(uint8_t blockno, uint8_t *bldata, uint8_t *KEY, bool use_credit_key, bool elite, bool rawkey, bool verbose) {
798 uint8_t MAC[4]={0x00,0x00,0x00,0x00};
799 uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
800 if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, verbose))
801 return 0;
802
803 UsbCommand resp;
804
805 Calc_wb_mac(blockno,bldata,div_key,MAC);
806 UsbCommand w = {CMD_ICLASS_WRITEBLOCK, {blockno}};
807 memcpy(w.d.asBytes, bldata, 8);
808 memcpy(w.d.asBytes + 8, MAC, 4);
809
810 clearCommandBuffer();
811 SendCommand(&w);
812 if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
813 {
814 PrintAndLog("Write Command execute timeout");
815 return 0;
816 }
817 uint8_t isOK = resp.arg[0] & 0xff;
818 if (!isOK) {
819 PrintAndLog("Write Block Failed");
820 return 0;
821 }
822 PrintAndLog("Write Block Successful");
823 return 1;
824 }
825
826 int usage_hf_iclass_writeblock(void) {
827 PrintAndLog("Options:");
828 PrintAndLog(" b <Block> : The block number as 2 hex symbols");
829 PrintAndLog(" d <data> : Set the Data to write as 16 hex symbols");
830 PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory");
831 PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n");
832 PrintAndLog(" e : If 'e' is specified, elite computations applied to key");
833 PrintAndLog(" r : If 'r' is specified, no computations applied to key");
834 PrintAndLog("Samples:");
835 PrintAndLog(" hf iclass writeblk b 0A d AAAAAAAAAAAAAAAA k 001122334455667B");
836 PrintAndLog(" hf iclass writeblk b 1B d AAAAAAAAAAAAAAAA k 001122334455667B c");
837 PrintAndLog(" hf iclass writeblk b 0A d AAAAAAAAAAAAAAAA n 0");
838 return 0;
839 }
840
841 int CmdHFiClass_WriteBlock(const char *Cmd) {
842 uint8_t blockno=0;
843 uint8_t bldata[8]={0,0,0,0,0,0,0,0};
844 uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
845 uint8_t keyNbr = 0;
846 uint8_t dataLen = 0;
847 char tempStr[50] = {0};
848 bool use_credit_key = false;
849 bool elite = false;
850 bool rawkey= false;
851 bool errors = false;
852 uint8_t cmdp = 0;
853 while(param_getchar(Cmd, cmdp) != 0x00)
854 {
855 switch(param_getchar(Cmd, cmdp))
856 {
857 case 'h':
858 case 'H':
859 return usage_hf_iclass_writeblock();
860 case 'b':
861 case 'B':
862 if (param_gethex(Cmd, cmdp+1, &blockno, 2)) {
863 PrintAndLog("Block No must include 2 HEX symbols\n");
864 errors = true;
865 }
866 cmdp += 2;
867 break;
868 case 'c':
869 case 'C':
870 use_credit_key = true;
871 cmdp++;
872 break;
873 case 'd':
874 case 'D':
875 if (param_gethex(Cmd, cmdp+1, bldata, 16))
876 {
877 PrintAndLog("KEY must include 16 HEX symbols\n");
878 errors = true;
879 }
880 cmdp += 2;
881 break;
882 case 'e':
883 case 'E':
884 elite = true;
885 cmdp++;
886 break;
887 case 'k':
888 case 'K':
889 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
890 if (dataLen == 16) {
891 errors = param_gethex(tempStr, 0, KEY, dataLen);
892 } else if (dataLen == 1) {
893 keyNbr = param_get8(Cmd, cmdp+1);
894 if (keyNbr <= ICLASS_KEYS_MAX) {
895 memcpy(KEY, iClass_Key_Table[keyNbr], 8);
896 } else {
897 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
898 errors = true;
899 }
900 } else {
901 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
902 errors = true;
903 }
904 cmdp += 2;
905 break;
906 case 'r':
907 case 'R':
908 rawkey = true;
909 cmdp++;
910 break;
911 default:
912 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
913 errors = true;
914 break;
915 }
916 if(errors) return usage_hf_iclass_writeblock();
917 }
918
919 if (cmdp < 6) return usage_hf_iclass_writeblock();
920 int ans = WriteBlock(blockno, bldata, KEY, use_credit_key, elite, rawkey, true);
921 ul_switch_off_field();
922 return ans;
923 }
924
925 int usage_hf_iclass_clone(void) {
926 PrintAndLog("Usage: hf iclass clone f <tagfile.bin> b <first block> l <last block> k <KEY> c e|r");
927 PrintAndLog("Options:");
928 PrintAndLog(" f <filename>: specify a filename to clone from");
929 PrintAndLog(" b <Block> : The first block to clone as 2 hex symbols");
930 PrintAndLog(" l <Last Blk>: Set the Data to write as 16 hex symbols");
931 PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory");
932 PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n");
933 PrintAndLog(" e : If 'e' is specified, elite computations applied to key");
934 PrintAndLog(" r : If 'r' is specified, no computations applied to key");
935 PrintAndLog("Samples:");
936 PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 06 l 1A k 1122334455667788 e");
937 PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 05 l 19 k 0");
938 PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 06 l 19 k 0 e");
939 return -1;
940 }
941
942 int CmdHFiClassCloneTag(const char *Cmd) {
943 char filename[FILE_PATH_SIZE];
944 char tempStr[50]={0};
945 uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
946 uint8_t keyNbr = 0;
947 uint8_t fileNameLen = 0;
948 uint8_t startblock = 0;
949 uint8_t endblock = 0;
950 uint8_t dataLen = 0;
951 bool use_credit_key = false;
952 bool elite = false;
953 bool rawkey = false;
954 bool errors = false;
955 uint8_t cmdp = 0;
956 while(param_getchar(Cmd, cmdp) != 0x00)
957 {
958 switch(param_getchar(Cmd, cmdp))
959 {
960 case 'h':
961 case 'H':
962 return usage_hf_iclass_clone();
963 case 'b':
964 case 'B':
965 if (param_gethex(Cmd, cmdp+1, &startblock, 2)) {
966 PrintAndLog("Start Block No must include 2 HEX symbols\n");
967 errors = true;
968 }
969 cmdp += 2;
970 break;
971 case 'c':
972 case 'C':
973 use_credit_key = true;
974 cmdp++;
975 break;
976 case 'e':
977 case 'E':
978 elite = true;
979 cmdp++;
980 break;
981 case 'f':
982 case 'F':
983 fileNameLen = param_getstr(Cmd, cmdp+1, filename);
984 if (fileNameLen < 1) {
985 PrintAndLog("No filename found after f");
986 errors = true;
987 }
988 cmdp += 2;
989 break;
990 case 'k':
991 case 'K':
992 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
993 if (dataLen == 16) {
994 errors = param_gethex(tempStr, 0, KEY, dataLen);
995 } else if (dataLen == 1) {
996 keyNbr = param_get8(Cmd, cmdp+1);
997 if (keyNbr <= ICLASS_KEYS_MAX) {
998 memcpy(KEY, iClass_Key_Table[keyNbr], 8);
999 } else {
1000 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
1001 errors = true;
1002 }
1003 } else {
1004 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
1005 errors = true;
1006 }
1007 cmdp += 2;
1008 break;
1009 case 'l':
1010 case 'L':
1011 if (param_gethex(Cmd, cmdp+1, &endblock, 2)) {
1012 PrintAndLog("Start Block No must include 2 HEX symbols\n");
1013 errors = true;
1014 }
1015 cmdp += 2;
1016 break;
1017 case 'r':
1018 case 'R':
1019 rawkey = true;
1020 cmdp++;
1021 break;
1022 default:
1023 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
1024 errors = true;
1025 break;
1026 }
1027 if(errors) return usage_hf_iclass_clone();
1028 }
1029
1030 if (cmdp < 8) return usage_hf_iclass_clone();
1031
1032 FILE *f;
1033
1034 iclass_block_t tag_data[USB_CMD_DATA_SIZE/12];
1035
1036 if ((endblock-startblock+1)*12 > USB_CMD_DATA_SIZE) {
1037 PrintAndLog("Trying to write too many blocks at once. Max: %d", USB_CMD_DATA_SIZE/8);
1038 }
1039 // file handling and reading
1040 f = fopen(filename,"rb");
1041 if(!f) {
1042 PrintAndLog("Failed to read from file '%s'", filename);
1043 return 1;
1044 }
1045
1046 if (startblock<5) {
1047 PrintAndLog("You cannot write key blocks this way. yet... make your start block > 4");
1048 return 0;
1049 }
1050 // now read data from the file from block 6 --- 19
1051 // ok we will use this struct [data 8 bytes][MAC 4 bytes] for each block calculate all mac number for each data
1052 // 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,
1053 // else we have to create a share memory
1054 int i;
1055 fseek(f,startblock*8,SEEK_SET);
1056 if ( fread(tag_data,sizeof(iclass_block_t),endblock - startblock + 1,f) == 0){
1057 PrintAndLog("File reading error.");
1058 fclose(f);
1059 return 2;
1060 }
1061
1062 uint8_t MAC[4]={0x00,0x00,0x00,0x00};
1063 uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1064
1065 if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, true))
1066 return 0;
1067
1068 UsbCommand w = {CMD_ICLASS_CLONE,{startblock,endblock}};
1069 uint8_t *ptr;
1070 // calculate all mac for every the block we will write
1071 for (i = startblock; i <= endblock; i++){
1072 Calc_wb_mac(i,tag_data[i - startblock].d,div_key,MAC);
1073 // usb command d start pointer = d + (i - 6) * 12
1074 // memcpy(pointer,tag_data[i - 6],8) 8 bytes
1075 // memcpy(pointer + 8,mac,sizoof(mac) 4 bytes;
1076 // next one
1077 ptr = w.d.asBytes + (i - startblock) * 12;
1078 memcpy(ptr, &(tag_data[i - startblock].d[0]), 8);
1079 memcpy(ptr + 8,MAC, 4);
1080 }
1081 uint8_t p[12];
1082 for (i = 0; i <= endblock - startblock;i++){
1083 memcpy(p,w.d.asBytes + (i * 12),12);
1084 printf("Block |%02x|",i + startblock);
1085 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]);
1086 printf(" MAC |%02x%02x%02x%02x|\n",p[8],p[9],p[10],p[11]);
1087 }
1088 UsbCommand resp;
1089 SendCommand(&w);
1090 if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
1091 {
1092 PrintAndLog("Command execute timeout");
1093 return 0;
1094 }
1095 return 1;
1096 }
1097
1098 static int ReadBlock(uint8_t *KEY, uint8_t blockno, uint8_t keyType, bool elite, bool rawkey, bool verbose) {
1099 uint8_t MAC[4]={0x00,0x00,0x00,0x00};
1100 uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1101
1102 if (!select_and_auth(KEY, MAC, div_key, (keyType==0x18), elite, rawkey, verbose))
1103 return 0;
1104
1105 UsbCommand resp;
1106 UsbCommand w = {CMD_ICLASS_READBLOCK, {blockno}};
1107 clearCommandBuffer();
1108 SendCommand(&w);
1109 if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
1110 {
1111 PrintAndLog("Command execute timeout");
1112 return 0;
1113 }
1114 uint8_t isOK = resp.arg[0] & 0xff;
1115 if (!isOK) {
1116 PrintAndLog("Read Block Failed");
1117 return 0;
1118 }
1119 //data read is stored in: resp.d.asBytes[0-15]
1120 if (verbose) PrintAndLog("Block %02X: %s\n",blockno, sprint_hex(resp.d.asBytes,8));
1121 return 1;
1122 }
1123
1124 int usage_hf_iclass_readblock(void) {
1125 PrintAndLog("Usage: hf iclass readblk b <Block> k <Key> c e|r\n");
1126 PrintAndLog("Options:");
1127 PrintAndLog(" b <Block> : The block number as 2 hex symbols");
1128 PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory");
1129 PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n");
1130 PrintAndLog(" e : If 'e' is specified, elite computations applied to key");
1131 PrintAndLog(" r : If 'r' is specified, no computations applied to key");
1132 PrintAndLog("Samples:");
1133 PrintAndLog(" hf iclass readblk b 06 k 0011223344556677");
1134 PrintAndLog(" hf iclass readblk b 1B k 0011223344556677 c");
1135 PrintAndLog(" hf iclass readblk b 0A k 0");
1136 return 0;
1137 }
1138
1139 int CmdHFiClass_ReadBlock(const char *Cmd) {
1140 uint8_t blockno=0;
1141 uint8_t keyType = 0x88; //debit key
1142 uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1143 uint8_t keyNbr = 0;
1144 uint8_t dataLen = 0;
1145 char tempStr[50] = {0};
1146 bool elite = false;
1147 bool rawkey = false;
1148 bool errors = false;
1149 uint8_t cmdp = 0;
1150 while(param_getchar(Cmd, cmdp) != 0x00)
1151 {
1152 switch(param_getchar(Cmd, cmdp))
1153 {
1154 case 'h':
1155 case 'H':
1156 return usage_hf_iclass_readblock();
1157 case 'b':
1158 case 'B':
1159 if (param_gethex(Cmd, cmdp+1, &blockno, 2)) {
1160 PrintAndLog("Block No must include 2 HEX symbols\n");
1161 errors = true;
1162 }
1163 cmdp += 2;
1164 break;
1165 case 'c':
1166 case 'C':
1167 keyType = 0x18;
1168 cmdp++;
1169 break;
1170 case 'e':
1171 case 'E':
1172 elite = true;
1173 cmdp++;
1174 break;
1175 case 'k':
1176 case 'K':
1177 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
1178 if (dataLen == 16) {
1179 errors = param_gethex(tempStr, 0, KEY, dataLen);
1180 } else if (dataLen == 1) {
1181 keyNbr = param_get8(Cmd, cmdp+1);
1182 if (keyNbr <= ICLASS_KEYS_MAX) {
1183 memcpy(KEY, iClass_Key_Table[keyNbr], 8);
1184 } else {
1185 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
1186 errors = true;
1187 }
1188 } else {
1189 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
1190 errors = true;
1191 }
1192 cmdp += 2;
1193 break;
1194 case 'r':
1195 case 'R':
1196 rawkey = true;
1197 cmdp++;
1198 break;
1199 default:
1200 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
1201 errors = true;
1202 break;
1203 }
1204 if(errors) return usage_hf_iclass_readblock();
1205 }
1206
1207 if (cmdp < 4) return usage_hf_iclass_readblock();
1208
1209 return ReadBlock(KEY, blockno, keyType, elite, rawkey, true);
1210 }
1211
1212 int CmdHFiClass_loclass(const char *Cmd) {
1213 char opt = param_getchar(Cmd, 0);
1214
1215 if (strlen(Cmd)<1 || opt == 'h') {
1216 PrintAndLog("Usage: hf iclass loclass [options]");
1217 PrintAndLog("Options:");
1218 PrintAndLog("h Show this help");
1219 PrintAndLog("t Perform self-test");
1220 PrintAndLog("f <filename> Bruteforce iclass dumpfile");
1221 PrintAndLog(" An iclass dumpfile is assumed to consist of an arbitrary number of");
1222 PrintAndLog(" malicious CSNs, and their protocol responses");
1223 PrintAndLog(" The the binary format of the file is expected to be as follows: ");
1224 PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
1225 PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
1226 PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
1227 PrintAndLog(" ... totalling N*24 bytes");
1228 return 0;
1229 }
1230 char fileName[255] = {0};
1231 if(opt == 'f')
1232 {
1233 if(param_getstr(Cmd, 1, fileName) > 0)
1234 {
1235 return bruteforceFileNoKeys(fileName);
1236 }else
1237 {
1238 PrintAndLog("You must specify a filename");
1239 }
1240 }
1241 else if(opt == 't')
1242 {
1243 int errors = testCipherUtils();
1244 errors += testMAC();
1245 errors += doKeyTests(0);
1246 errors += testElite();
1247 if(errors)
1248 {
1249 prnlog("OBS! There were errors!!!");
1250 }
1251 return errors;
1252 }
1253
1254 return 0;
1255 }
1256
1257 void printIclassDumpContents(uint8_t *iclass_dump, uint8_t startblock, uint8_t endblock, size_t filesize) {
1258 uint8_t blockdata[8];
1259 uint8_t mem_config;
1260 memcpy(&mem_config, iclass_dump + 13,1);
1261 uint8_t maxmemcount;
1262 uint8_t filemaxblock = filesize / 8;
1263 if (mem_config & 0x80)
1264 maxmemcount = 255;
1265 else
1266 maxmemcount = 31;
1267 //PrintAndLog ("endblock: %d, filesize: %d, maxmemcount: %d, filemaxblock: %d", endblock,filesize, maxmemcount, filemaxblock);
1268
1269 if (startblock == 0)
1270 startblock = 6;
1271 if ((endblock > maxmemcount) || (endblock == 0))
1272 endblock = maxmemcount;
1273 if (endblock > filemaxblock)
1274 endblock = filemaxblock;
1275 int i = startblock;
1276 int j;
1277 while (i <= endblock){
1278 printf("Block |%02X| ",i);
1279 memcpy(blockdata,iclass_dump + (i * 8),8);
1280 for (j = 0;j < 8;j++)
1281 printf("%02X ",blockdata[j]);
1282 printf("|\n");
1283 i++;
1284 }
1285 }
1286
1287 int usage_hf_iclass_readtagfile() {
1288 PrintAndLog("Usage: hf iclass readtagfile <filename> [startblock] [endblock]");
1289 return 1;
1290 }
1291
1292 int CmdHFiClassReadTagFile(const char *Cmd) {
1293 int startblock = 0;
1294 int endblock = 0;
1295 char tempnum[5];
1296 FILE *f;
1297 char filename[FILE_PATH_SIZE];
1298 if (param_getstr(Cmd, 0, filename) < 1)
1299 return usage_hf_iclass_readtagfile();
1300 if (param_getstr(Cmd,1,(char *)&tempnum) < 1)
1301 startblock = 0;
1302 else
1303 sscanf(tempnum,"%d",&startblock);
1304
1305 if (param_getstr(Cmd,2,(char *)&tempnum) < 1)
1306 endblock = 0;
1307 else
1308 sscanf(tempnum,"%d",&endblock);
1309 // file handling and reading
1310 f = fopen(filename,"rb");
1311 if(!f) {
1312 PrintAndLog("Failed to read from file '%s'", filename);
1313 return 1;
1314 }
1315 fseek(f, 0, SEEK_END);
1316 long fsize = ftell(f);
1317 fseek(f, 0, SEEK_SET);
1318
1319 uint8_t *dump = malloc(fsize);
1320
1321
1322 size_t bytes_read = fread(dump, 1, fsize, f);
1323 fclose(f);
1324 uint8_t *csn = dump;
1325 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]);
1326 // printIclassDumpInfo(dump);
1327 printIclassDumpContents(dump,startblock,endblock,bytes_read);
1328 free(dump);
1329 return 0;
1330 }
1331
1332 /*
1333 uint64_t xorcheck(uint64_t sdiv,uint64_t hdiv) {
1334 uint64_t new_div = 0x00;
1335 new_div ^= sdiv;
1336 new_div ^= hdiv;
1337 return new_div;
1338 }
1339
1340 uint64_t hexarray_to_uint64(uint8_t *key) {
1341 char temp[17];
1342 uint64_t uint_key;
1343 for (int i = 0;i < 8;i++)
1344 sprintf(&temp[(i *2)],"%02X",key[i]);
1345 temp[16] = '\0';
1346 if (sscanf(temp,"%016"llX,&uint_key) < 1)
1347 return 0;
1348 return uint_key;
1349 }
1350 */
1351 void HFiClassCalcDivKey(uint8_t *CSN, uint8_t *KEY, uint8_t *div_key, bool elite){
1352 uint8_t keytable[128] = {0};
1353 uint8_t key_index[8] = {0};
1354 if (elite) {
1355 uint8_t key_sel[8] = { 0 };
1356 uint8_t key_sel_p[8] = { 0 };
1357 hash2(KEY, keytable);
1358 hash1(CSN, key_index);
1359 for(uint8_t i = 0; i < 8 ; i++)
1360 key_sel[i] = keytable[key_index[i]] & 0xFF;
1361
1362 //Permute from iclass format to standard format
1363 permutekey_rev(key_sel, key_sel_p);
1364 diversifyKey(CSN, key_sel_p, div_key);
1365 } else {
1366 diversifyKey(CSN, KEY, div_key);
1367 }
1368 }
1369
1370 //when told CSN, oldkey, newkey, if new key is elite (elite), and if old key was elite (oldElite)
1371 //calculate and return xor_div_key (ready for a key write command)
1372 //print all div_keys if verbose
1373 static void HFiClassCalcNewKey(uint8_t *CSN, uint8_t *OLDKEY, uint8_t *NEWKEY, uint8_t *xor_div_key, bool elite, bool oldElite, bool verbose){
1374 uint8_t old_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1375 uint8_t new_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1376 //get old div key
1377 HFiClassCalcDivKey(CSN, OLDKEY, old_div_key, oldElite);
1378 //get new div key
1379 HFiClassCalcDivKey(CSN, NEWKEY, new_div_key, elite);
1380
1381 for (uint8_t i = 0; i < sizeof(old_div_key); i++){
1382 xor_div_key[i] = old_div_key[i] ^ new_div_key[i];
1383 }
1384 if (verbose) {
1385 printf("Old Div Key : %s\n",sprint_hex(old_div_key,8));
1386 printf("New Div Key : %s\n",sprint_hex(new_div_key,8));
1387 printf("Xor Div Key : %s\n",sprint_hex(xor_div_key,8));
1388 }
1389 }
1390
1391 int usage_hf_iclass_calc_newkey(void) {
1392 PrintAndLog("HELP : Manage iClass Keys in client memory:\n");
1393 PrintAndLog("Usage: hf iclass calc_newkey o <Old key> n <New key> s [csn] e");
1394 PrintAndLog(" Options:");
1395 PrintAndLog(" o <oldkey> : *specify a key as 16 hex symbols or a key number as 1 symbol");
1396 PrintAndLog(" n <newkey> : *specify a key as 16 hex symbols or a key number as 1 symbol");
1397 PrintAndLog(" s <csn> : specify a card Serial number to diversify the key (if omitted will attempt to read a csn)");
1398 PrintAndLog(" e : specify new key as elite calc");
1399 PrintAndLog(" ee : specify old and new key as elite calc");
1400 PrintAndLog("Samples:");
1401 PrintAndLog(" e key to e key given csn : hf iclass calcnewkey o 1122334455667788 n 2233445566778899 s deadbeafdeadbeaf ee");
1402 PrintAndLog(" std key to e key read csn: hf iclass calcnewkey o 1122334455667788 n 2233445566778899 e");
1403 PrintAndLog(" std to std read csn : hf iclass calcnewkey o 1122334455667788 n 2233445566778899");
1404 PrintAndLog("NOTE: * = required\n");
1405
1406 return 1;
1407 }
1408
1409 int CmdHFiClassCalcNewKey(const char *Cmd) {
1410 uint8_t OLDKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1411 uint8_t NEWKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1412 uint8_t xor_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1413 uint8_t CSN[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1414 uint8_t CCNR[12] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1415 uint8_t keyNbr = 0;
1416 uint8_t dataLen = 0;
1417 char tempStr[50] = {0};
1418 bool givenCSN = false;
1419 bool oldElite = false;
1420 bool elite = false;
1421 bool errors = false;
1422 uint8_t cmdp = 0;
1423 while(param_getchar(Cmd, cmdp) != 0x00)
1424 {
1425 switch(param_getchar(Cmd, cmdp))
1426 {
1427 case 'h':
1428 case 'H':
1429 return usage_hf_iclass_calc_newkey();
1430 case 'e':
1431 case 'E':
1432 dataLen = param_getstr(Cmd, cmdp, tempStr);
1433 if (dataLen==2)
1434 oldElite = true;
1435 elite = true;
1436 cmdp++;
1437 break;
1438 case 'n':
1439 case 'N':
1440 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
1441 if (dataLen == 16) {
1442 errors = param_gethex(tempStr, 0, NEWKEY, dataLen);
1443 } else if (dataLen == 1) {
1444 keyNbr = param_get8(Cmd, cmdp+1);
1445 if (keyNbr <= ICLASS_KEYS_MAX) {
1446 memcpy(NEWKEY, iClass_Key_Table[keyNbr], 8);
1447 } else {
1448 PrintAndLog("\nERROR: NewKey Nbr is invalid\n");
1449 errors = true;
1450 }
1451 } else {
1452 PrintAndLog("\nERROR: NewKey is incorrect length\n");
1453 errors = true;
1454 }
1455 cmdp += 2;
1456 break;
1457 case 'o':
1458 case 'O':
1459 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
1460 if (dataLen == 16) {
1461 errors = param_gethex(tempStr, 0, OLDKEY, dataLen);
1462 } else if (dataLen == 1) {
1463 keyNbr = param_get8(Cmd, cmdp+1);
1464 if (keyNbr <= ICLASS_KEYS_MAX) {
1465 memcpy(OLDKEY, iClass_Key_Table[keyNbr], 8);
1466 } else {
1467 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
1468 errors = true;
1469 }
1470 } else {
1471 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
1472 errors = true;
1473 }
1474 cmdp += 2;
1475 break;
1476 case 's':
1477 case 'S':
1478 givenCSN = true;
1479 if (param_gethex(Cmd, cmdp+1, CSN, 16))
1480 return usage_hf_iclass_calc_newkey();
1481 cmdp += 2;
1482 break;
1483 default:
1484 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
1485 errors = true;
1486 break;
1487 }
1488 if(errors) return usage_hf_iclass_calc_newkey();
1489 }
1490
1491 if (cmdp < 4) return usage_hf_iclass_calc_newkey();
1492
1493 if (!givenCSN)
1494 if (!select_only(CSN, CCNR, false, true))
1495 return 0;
1496
1497 HFiClassCalcNewKey(CSN, OLDKEY, NEWKEY, xor_div_key, elite, oldElite, true);
1498 return 0;
1499 }
1500
1501 static int loadKeys(char *filename) {
1502 FILE *f;
1503 f = fopen(filename,"rb");
1504 if(!f) {
1505 PrintAndLog("Failed to read from file '%s'", filename);
1506 return 0;
1507 }
1508 fseek(f, 0, SEEK_END);
1509 long fsize = ftell(f);
1510 fseek(f, 0, SEEK_SET);
1511
1512 uint8_t *dump = malloc(fsize);
1513
1514 size_t bytes_read = fread(dump, 1, fsize, f);
1515 fclose(f);
1516 if (bytes_read > ICLASS_KEYS_MAX * 8){
1517 PrintAndLog("File is too long to load - bytes: %u", bytes_read);
1518 free(dump);
1519 return 0;
1520 }
1521 uint8_t i = 0;
1522 for (; i < bytes_read/8; i++){
1523 memcpy(iClass_Key_Table[i],dump+(i*8),8);
1524 }
1525 free(dump);
1526 PrintAndLog("%u keys loaded", i);
1527 return 1;
1528 }
1529
1530 static int saveKeys(char *filename) {
1531 FILE *f;
1532 f = fopen(filename,"wb");
1533 if (f == NULL) {
1534 printf("error opening file %s\n",filename);
1535 return 0;
1536 }
1537 for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){
1538 if (fwrite(iClass_Key_Table[i],8,1,f) != 1){
1539 PrintAndLog("save key failed to write to file: %s", filename);
1540 break;
1541 }
1542 }
1543 fclose(f);
1544 return 0;
1545 }
1546
1547 static int printKeys(void) {
1548 PrintAndLog("");
1549 for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){
1550 PrintAndLog("%u: %s",i,sprint_hex(iClass_Key_Table[i],8));
1551 }
1552 PrintAndLog("");
1553 return 0;
1554 }
1555
1556 int usage_hf_iclass_managekeys(void) {
1557 PrintAndLog("HELP : Manage iClass Keys in client memory:\n");
1558 PrintAndLog("Usage: hf iclass managekeys n [keynbr] k [key] f [filename] s l p\n");
1559 PrintAndLog(" Options:");
1560 PrintAndLog(" n <keynbr> : specify the keyNbr to set in memory");
1561 PrintAndLog(" k <key> : set a key in memory");
1562 PrintAndLog(" f <filename>: specify a filename to use with load or save operations");
1563 PrintAndLog(" s : save keys in memory to file specified by filename");
1564 PrintAndLog(" l : load keys to memory from file specified by filename");
1565 PrintAndLog(" p : print keys loaded into memory\n");
1566 PrintAndLog("Samples:");
1567 PrintAndLog(" set key : hf iclass managekeys n 0 k 1122334455667788");
1568 PrintAndLog(" save key file: hf iclass managekeys f mykeys.bin s");
1569 PrintAndLog(" load key file: hf iclass managekeys f mykeys.bin l");
1570 PrintAndLog(" print keys : hf iclass managekeys p\n");
1571 return 0;
1572 }
1573
1574 int CmdHFiClassManageKeys(const char *Cmd) {
1575 uint8_t keyNbr = 0;
1576 uint8_t dataLen = 0;
1577 uint8_t KEY[8] = {0};
1578 char filename[FILE_PATH_SIZE];
1579 uint8_t fileNameLen = 0;
1580 bool errors = false;
1581 uint8_t operation = 0;
1582 char tempStr[20];
1583 uint8_t cmdp = 0;
1584
1585 while(param_getchar(Cmd, cmdp) != 0x00)
1586 {
1587 switch(param_getchar(Cmd, cmdp))
1588 {
1589 case 'h':
1590 case 'H':
1591 return usage_hf_iclass_managekeys();
1592 case 'f':
1593 case 'F':
1594 fileNameLen = param_getstr(Cmd, cmdp+1, filename);
1595 if (fileNameLen < 1) {
1596 PrintAndLog("No filename found after f");
1597 errors = true;
1598 }
1599 cmdp += 2;
1600 break;
1601 case 'n':
1602 case 'N':
1603 keyNbr = param_get8(Cmd, cmdp+1);
1604 if (keyNbr < 0) {
1605 PrintAndLog("Wrong block number");
1606 errors = true;
1607 }
1608 cmdp += 2;
1609 break;
1610 case 'k':
1611 case 'K':
1612 operation += 3; //set key
1613 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
1614 if (dataLen == 16) { //ul-c or ev1/ntag key length
1615 errors = param_gethex(tempStr, 0, KEY, dataLen);
1616 } else {
1617 PrintAndLog("\nERROR: Key is incorrect length\n");
1618 errors = true;
1619 }
1620 cmdp += 2;
1621 break;
1622 case 'p':
1623 case 'P':
1624 operation += 4; //print keys in memory
1625 cmdp++;
1626 break;
1627 case 'l':
1628 case 'L':
1629 operation += 5; //load keys from file
1630 cmdp++;
1631 break;
1632 case 's':
1633 case 'S':
1634 operation += 6; //save keys to file
1635 cmdp++;
1636 break;
1637 default:
1638 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
1639 errors = true;
1640 break;
1641 }
1642 if(errors) return usage_hf_iclass_managekeys();
1643 }
1644 if (operation == 0){
1645 PrintAndLog("no operation specified (load, save, or print)\n");
1646 return usage_hf_iclass_managekeys();
1647 }
1648 if (operation > 6){
1649 PrintAndLog("Too many operations specified\n");
1650 return usage_hf_iclass_managekeys();
1651 }
1652 if (operation > 4 && fileNameLen == 0){
1653 PrintAndLog("You must enter a filename when loading or saving\n");
1654 return usage_hf_iclass_managekeys();
1655 }
1656
1657 switch (operation){
1658 case 3: memcpy(iClass_Key_Table[keyNbr], KEY, 8); return 1;
1659 case 4: return printKeys();
1660 case 5: return loadKeys(filename);
1661 case 6: return saveKeys(filename);
1662 break;
1663 }
1664 return 0;
1665 }
1666
1667 static command_t CommandTable[] =
1668 {
1669 {"help", CmdHelp, 1, "This help"},
1670 {"calcnewkey", CmdHFiClassCalcNewKey, 1, "[options..] Calc Diversified keys (blocks 3 & 4) to write new keys"},
1671 {"clone", CmdHFiClassCloneTag, 0, "[options..] Authenticate and Clone from iClass bin file"},
1672 {"decrypt", CmdHFiClassDecrypt, 1, "[f <fname>] Decrypt tagdump" },
1673 {"dump", CmdHFiClassReader_Dump, 0, "[options..] Authenticate and Dump iClass tag's AA1"},
1674 {"eload", CmdHFiClassELoad, 0, "[f <fname>] (experimental) Load data into iClass emulator memory"},
1675 {"encryptblk", CmdHFiClassEncryptBlk, 1, "<BlockData> Encrypt given block data"},
1676 {"list", CmdHFiClassList, 0, " (Deprecated) List iClass history"},
1677 {"loclass", CmdHFiClass_loclass, 1, "[options..] Use loclass to perform bruteforce of reader attack dump"},
1678 {"managekeys", CmdHFiClassManageKeys, 1, "[options..] Manage the keys to use with iClass"},
1679 {"readblk", CmdHFiClass_ReadBlock, 0, "[options..] Authenticate and Read iClass block"},
1680 {"reader",CmdHFiClassReader, 0, "Read an iClass tag"},
1681 {"readtagfile", CmdHFiClassReadTagFile, 1, "[options..] Display Content from tagfile"},
1682 {"replay", CmdHFiClassReader_Replay, 0, "<mac> Read an iClass tag via Reply Attack"},
1683 {"sim", CmdHFiClassSim, 0, "[options..] Simulate iClass tag"},
1684 {"snoop", CmdHFiClassSnoop, 0, " Eavesdrop iClass communication"},
1685 {"writeblk", CmdHFiClass_WriteBlock, 0, "[options..] Authenticate and Write iClass block"},
1686 {NULL, NULL, 0, NULL}
1687 };
1688
1689 int CmdHFiClass(const char *Cmd)
1690 {
1691 CmdsParse(CommandTable, Cmd);
1692 return 0;
1693 }
1694
1695 int CmdHelp(const char *Cmd)
1696 {
1697 CmdsHelp(CommandTable);
1698 return 0;
1699 }
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