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FIX, Coverity, Argument can't be negative, CID #212324, ftell(f) can be negative...
[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 fclose(f);
290 return 1;
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 if ( fsize < 0 ) {
1320 PrintAndLog("Error, when getting filesize");
1321 fclose(f);
1322 return 1;
1323 }
1324
1325 uint8_t *dump = malloc(fsize);
1326
1327 size_t bytes_read = fread(dump, 1, fsize, f);
1328 fclose(f);
1329 uint8_t *csn = dump;
1330 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]);
1331 // printIclassDumpInfo(dump);
1332 printIclassDumpContents(dump,startblock,endblock,bytes_read);
1333 free(dump);
1334 return 0;
1335 }
1336
1337 /*
1338 uint64_t xorcheck(uint64_t sdiv,uint64_t hdiv) {
1339 uint64_t new_div = 0x00;
1340 new_div ^= sdiv;
1341 new_div ^= hdiv;
1342 return new_div;
1343 }
1344
1345 uint64_t hexarray_to_uint64(uint8_t *key) {
1346 char temp[17];
1347 uint64_t uint_key;
1348 for (int i = 0;i < 8;i++)
1349 sprintf(&temp[(i *2)],"%02X",key[i]);
1350 temp[16] = '\0';
1351 if (sscanf(temp,"%016"llX,&uint_key) < 1)
1352 return 0;
1353 return uint_key;
1354 }
1355 */
1356 void HFiClassCalcDivKey(uint8_t *CSN, uint8_t *KEY, uint8_t *div_key, bool elite){
1357 uint8_t keytable[128] = {0};
1358 uint8_t key_index[8] = {0};
1359 if (elite) {
1360 uint8_t key_sel[8] = { 0 };
1361 uint8_t key_sel_p[8] = { 0 };
1362 hash2(KEY, keytable);
1363 hash1(CSN, key_index);
1364 for(uint8_t i = 0; i < 8 ; i++)
1365 key_sel[i] = keytable[key_index[i]] & 0xFF;
1366
1367 //Permute from iclass format to standard format
1368 permutekey_rev(key_sel, key_sel_p);
1369 diversifyKey(CSN, key_sel_p, div_key);
1370 } else {
1371 diversifyKey(CSN, KEY, div_key);
1372 }
1373 }
1374
1375 //when told CSN, oldkey, newkey, if new key is elite (elite), and if old key was elite (oldElite)
1376 //calculate and return xor_div_key (ready for a key write command)
1377 //print all div_keys if verbose
1378 static void HFiClassCalcNewKey(uint8_t *CSN, uint8_t *OLDKEY, uint8_t *NEWKEY, uint8_t *xor_div_key, bool elite, bool oldElite, bool verbose){
1379 uint8_t old_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1380 uint8_t new_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1381 //get old div key
1382 HFiClassCalcDivKey(CSN, OLDKEY, old_div_key, oldElite);
1383 //get new div key
1384 HFiClassCalcDivKey(CSN, NEWKEY, new_div_key, elite);
1385
1386 for (uint8_t i = 0; i < sizeof(old_div_key); i++){
1387 xor_div_key[i] = old_div_key[i] ^ new_div_key[i];
1388 }
1389 if (verbose) {
1390 printf("Old Div Key : %s\n",sprint_hex(old_div_key,8));
1391 printf("New Div Key : %s\n",sprint_hex(new_div_key,8));
1392 printf("Xor Div Key : %s\n",sprint_hex(xor_div_key,8));
1393 }
1394 }
1395
1396 int usage_hf_iclass_calc_newkey(void) {
1397 PrintAndLog("HELP : Manage iClass Keys in client memory:\n");
1398 PrintAndLog("Usage: hf iclass calc_newkey o <Old key> n <New key> s [csn] e");
1399 PrintAndLog(" Options:");
1400 PrintAndLog(" o <oldkey> : *specify a key as 16 hex symbols or a key number as 1 symbol");
1401 PrintAndLog(" n <newkey> : *specify a key as 16 hex symbols or a key number as 1 symbol");
1402 PrintAndLog(" s <csn> : specify a card Serial number to diversify the key (if omitted will attempt to read a csn)");
1403 PrintAndLog(" e : specify new key as elite calc");
1404 PrintAndLog(" ee : specify old and new key as elite calc");
1405 PrintAndLog("Samples:");
1406 PrintAndLog(" e key to e key given csn : hf iclass calcnewkey o 1122334455667788 n 2233445566778899 s deadbeafdeadbeaf ee");
1407 PrintAndLog(" std key to e key read csn: hf iclass calcnewkey o 1122334455667788 n 2233445566778899 e");
1408 PrintAndLog(" std to std read csn : hf iclass calcnewkey o 1122334455667788 n 2233445566778899");
1409 PrintAndLog("NOTE: * = required\n");
1410
1411 return 1;
1412 }
1413
1414 int CmdHFiClassCalcNewKey(const char *Cmd) {
1415 uint8_t OLDKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1416 uint8_t NEWKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1417 uint8_t xor_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1418 uint8_t CSN[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1419 uint8_t CCNR[12] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
1420 uint8_t keyNbr = 0;
1421 uint8_t dataLen = 0;
1422 char tempStr[50] = {0};
1423 bool givenCSN = false;
1424 bool oldElite = false;
1425 bool elite = false;
1426 bool errors = false;
1427 uint8_t cmdp = 0;
1428 while(param_getchar(Cmd, cmdp) != 0x00)
1429 {
1430 switch(param_getchar(Cmd, cmdp))
1431 {
1432 case 'h':
1433 case 'H':
1434 return usage_hf_iclass_calc_newkey();
1435 case 'e':
1436 case 'E':
1437 dataLen = param_getstr(Cmd, cmdp, tempStr);
1438 if (dataLen==2)
1439 oldElite = true;
1440 elite = true;
1441 cmdp++;
1442 break;
1443 case 'n':
1444 case 'N':
1445 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
1446 if (dataLen == 16) {
1447 errors = param_gethex(tempStr, 0, NEWKEY, dataLen);
1448 } else if (dataLen == 1) {
1449 keyNbr = param_get8(Cmd, cmdp+1);
1450 if (keyNbr <= ICLASS_KEYS_MAX) {
1451 memcpy(NEWKEY, iClass_Key_Table[keyNbr], 8);
1452 } else {
1453 PrintAndLog("\nERROR: NewKey Nbr is invalid\n");
1454 errors = true;
1455 }
1456 } else {
1457 PrintAndLog("\nERROR: NewKey is incorrect length\n");
1458 errors = true;
1459 }
1460 cmdp += 2;
1461 break;
1462 case 'o':
1463 case 'O':
1464 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
1465 if (dataLen == 16) {
1466 errors = param_gethex(tempStr, 0, OLDKEY, dataLen);
1467 } else if (dataLen == 1) {
1468 keyNbr = param_get8(Cmd, cmdp+1);
1469 if (keyNbr <= ICLASS_KEYS_MAX) {
1470 memcpy(OLDKEY, iClass_Key_Table[keyNbr], 8);
1471 } else {
1472 PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
1473 errors = true;
1474 }
1475 } else {
1476 PrintAndLog("\nERROR: Credit Key is incorrect length\n");
1477 errors = true;
1478 }
1479 cmdp += 2;
1480 break;
1481 case 's':
1482 case 'S':
1483 givenCSN = true;
1484 if (param_gethex(Cmd, cmdp+1, CSN, 16))
1485 return usage_hf_iclass_calc_newkey();
1486 cmdp += 2;
1487 break;
1488 default:
1489 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
1490 errors = true;
1491 break;
1492 }
1493 if(errors) return usage_hf_iclass_calc_newkey();
1494 }
1495
1496 if (cmdp < 4) return usage_hf_iclass_calc_newkey();
1497
1498 if (!givenCSN)
1499 if (!select_only(CSN, CCNR, false, true))
1500 return 0;
1501
1502 HFiClassCalcNewKey(CSN, OLDKEY, NEWKEY, xor_div_key, elite, oldElite, true);
1503 return 0;
1504 }
1505
1506 static int loadKeys(char *filename) {
1507 FILE *f;
1508 f = fopen(filename,"rb");
1509 if(!f) {
1510 PrintAndLog("Failed to read from file '%s'", filename);
1511 return 0;
1512 }
1513 fseek(f, 0, SEEK_END);
1514 long fsize = ftell(f);
1515 fseek(f, 0, SEEK_SET);
1516
1517 if ( fsize < 0 ) {
1518 PrintAndLog("Error, when getting filesize");
1519 fclose(f);
1520 return 1;
1521 }
1522
1523 uint8_t *dump = malloc(fsize);
1524
1525 size_t bytes_read = fread(dump, 1, fsize, f);
1526 fclose(f);
1527 if (bytes_read > ICLASS_KEYS_MAX * 8){
1528 PrintAndLog("File is too long to load - bytes: %u", bytes_read);
1529 free(dump);
1530 return 0;
1531 }
1532 uint8_t i = 0;
1533 for (; i < bytes_read/8; i++){
1534 memcpy(iClass_Key_Table[i],dump+(i*8),8);
1535 }
1536 free(dump);
1537 PrintAndLog("%u keys loaded", i);
1538 return 1;
1539 }
1540
1541 static int saveKeys(char *filename) {
1542 FILE *f;
1543 f = fopen(filename,"wb");
1544 if (f == NULL) {
1545 printf("error opening file %s\n",filename);
1546 return 0;
1547 }
1548 for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){
1549 if (fwrite(iClass_Key_Table[i],8,1,f) != 1){
1550 PrintAndLog("save key failed to write to file: %s", filename);
1551 break;
1552 }
1553 }
1554 fclose(f);
1555 return 0;
1556 }
1557
1558 static int printKeys(void) {
1559 PrintAndLog("");
1560 for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){
1561 PrintAndLog("%u: %s",i,sprint_hex(iClass_Key_Table[i],8));
1562 }
1563 PrintAndLog("");
1564 return 0;
1565 }
1566
1567 int usage_hf_iclass_managekeys(void) {
1568 PrintAndLog("HELP : Manage iClass Keys in client memory:\n");
1569 PrintAndLog("Usage: hf iclass managekeys n [keynbr] k [key] f [filename] s l p\n");
1570 PrintAndLog(" Options:");
1571 PrintAndLog(" n <keynbr> : specify the keyNbr to set in memory");
1572 PrintAndLog(" k <key> : set a key in memory");
1573 PrintAndLog(" f <filename>: specify a filename to use with load or save operations");
1574 PrintAndLog(" s : save keys in memory to file specified by filename");
1575 PrintAndLog(" l : load keys to memory from file specified by filename");
1576 PrintAndLog(" p : print keys loaded into memory\n");
1577 PrintAndLog("Samples:");
1578 PrintAndLog(" set key : hf iclass managekeys n 0 k 1122334455667788");
1579 PrintAndLog(" save key file: hf iclass managekeys f mykeys.bin s");
1580 PrintAndLog(" load key file: hf iclass managekeys f mykeys.bin l");
1581 PrintAndLog(" print keys : hf iclass managekeys p\n");
1582 return 0;
1583 }
1584
1585 int CmdHFiClassManageKeys(const char *Cmd) {
1586 uint8_t keyNbr = 0;
1587 uint8_t dataLen = 0;
1588 uint8_t KEY[8] = {0};
1589 char filename[FILE_PATH_SIZE];
1590 uint8_t fileNameLen = 0;
1591 bool errors = false;
1592 uint8_t operation = 0;
1593 char tempStr[20];
1594 uint8_t cmdp = 0;
1595
1596 while(param_getchar(Cmd, cmdp) != 0x00)
1597 {
1598 switch(param_getchar(Cmd, cmdp))
1599 {
1600 case 'h':
1601 case 'H':
1602 return usage_hf_iclass_managekeys();
1603 case 'f':
1604 case 'F':
1605 fileNameLen = param_getstr(Cmd, cmdp+1, filename);
1606 if (fileNameLen < 1) {
1607 PrintAndLog("No filename found after f");
1608 errors = true;
1609 }
1610 cmdp += 2;
1611 break;
1612 case 'n':
1613 case 'N':
1614 keyNbr = param_get8(Cmd, cmdp+1);
1615 if (keyNbr < 0) {
1616 PrintAndLog("Wrong block number");
1617 errors = true;
1618 }
1619 cmdp += 2;
1620 break;
1621 case 'k':
1622 case 'K':
1623 operation += 3; //set key
1624 dataLen = param_getstr(Cmd, cmdp+1, tempStr);
1625 if (dataLen == 16) { //ul-c or ev1/ntag key length
1626 errors = param_gethex(tempStr, 0, KEY, dataLen);
1627 } else {
1628 PrintAndLog("\nERROR: Key is incorrect length\n");
1629 errors = true;
1630 }
1631 cmdp += 2;
1632 break;
1633 case 'p':
1634 case 'P':
1635 operation += 4; //print keys in memory
1636 cmdp++;
1637 break;
1638 case 'l':
1639 case 'L':
1640 operation += 5; //load keys from file
1641 cmdp++;
1642 break;
1643 case 's':
1644 case 'S':
1645 operation += 6; //save keys to file
1646 cmdp++;
1647 break;
1648 default:
1649 PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
1650 errors = true;
1651 break;
1652 }
1653 if(errors) return usage_hf_iclass_managekeys();
1654 }
1655 if (operation == 0){
1656 PrintAndLog("no operation specified (load, save, or print)\n");
1657 return usage_hf_iclass_managekeys();
1658 }
1659 if (operation > 6){
1660 PrintAndLog("Too many operations specified\n");
1661 return usage_hf_iclass_managekeys();
1662 }
1663 if (operation > 4 && fileNameLen == 0){
1664 PrintAndLog("You must enter a filename when loading or saving\n");
1665 return usage_hf_iclass_managekeys();
1666 }
1667
1668 switch (operation){
1669 case 3: memcpy(iClass_Key_Table[keyNbr], KEY, 8); return 1;
1670 case 4: return printKeys();
1671 case 5: return loadKeys(filename);
1672 case 6: return saveKeys(filename);
1673 break;
1674 }
1675 return 0;
1676 }
1677
1678 static command_t CommandTable[] =
1679 {
1680 {"help", CmdHelp, 1, "This help"},
1681 {"calcnewkey", CmdHFiClassCalcNewKey, 1, "[options..] Calc Diversified keys (blocks 3 & 4) to write new keys"},
1682 {"clone", CmdHFiClassCloneTag, 0, "[options..] Authenticate and Clone from iClass bin file"},
1683 {"decrypt", CmdHFiClassDecrypt, 1, "[f <fname>] Decrypt tagdump" },
1684 {"dump", CmdHFiClassReader_Dump, 0, "[options..] Authenticate and Dump iClass tag's AA1"},
1685 {"eload", CmdHFiClassELoad, 0, "[f <fname>] (experimental) Load data into iClass emulator memory"},
1686 {"encryptblk", CmdHFiClassEncryptBlk, 1, "<BlockData> Encrypt given block data"},
1687 {"list", CmdHFiClassList, 0, " (Deprecated) List iClass history"},
1688 {"loclass", CmdHFiClass_loclass, 1, "[options..] Use loclass to perform bruteforce of reader attack dump"},
1689 {"managekeys", CmdHFiClassManageKeys, 1, "[options..] Manage the keys to use with iClass"},
1690 {"readblk", CmdHFiClass_ReadBlock, 0, "[options..] Authenticate and Read iClass block"},
1691 {"reader",CmdHFiClassReader, 0, "Read an iClass tag"},
1692 {"readtagfile", CmdHFiClassReadTagFile, 1, "[options..] Display Content from tagfile"},
1693 {"replay", CmdHFiClassReader_Replay, 0, "<mac> Read an iClass tag via Reply Attack"},
1694 {"sim", CmdHFiClassSim, 0, "[options..] Simulate iClass tag"},
1695 {"snoop", CmdHFiClassSnoop, 0, " Eavesdrop iClass communication"},
1696 {"writeblk", CmdHFiClass_WriteBlock, 0, "[options..] Authenticate and Write iClass block"},
1697 {NULL, NULL, 0, NULL}
1698 };
1699
1700 int CmdHFiClass(const char *Cmd)
1701 {
1702 CmdsParse(CommandTable, Cmd);
1703 return 0;
1704 }
1705
1706 int CmdHelp(const char *Cmd)
1707 {
1708 CmdsHelp(CommandTable);
1709 return 0;
1710 }
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