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1 | //----------------------------------------------------------------------------- | |
2 | // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch | |
3 | // Copyright (C) 2011 Gerhard de Koning Gans | |
4 | // Copyright (C) 2014 Midnitesnake & Andy Davies & Martin Holst Swende | |
5 | // | |
6 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
7 | // at your option, any later version. See the LICENSE.txt file for the text of | |
8 | // the license. | |
9 | //----------------------------------------------------------------------------- | |
10 | // High frequency iClass commands | |
11 | //----------------------------------------------------------------------------- | |
12 | ||
13 | #include <stdio.h> | |
14 | #include <stdlib.h> | |
15 | #include <string.h> | |
16 | #include <sys/stat.h> | |
17 | #include <ctype.h> | |
18 | #include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type | |
19 | #include "comms.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 "mbedtls/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 "util_posix.h" | |
36 | #include "cmdhf14a.h" // DropField() | |
37 | ||
38 | static int CmdHelp(const char *Cmd); | |
39 | ||
40 | #define ICLASS_KEYS_MAX 8 | |
41 | static uint8_t iClass_Key_Table[ICLASS_KEYS_MAX][8] = { | |
42 | { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, | |
43 | { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, | |
44 | { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, | |
45 | { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, | |
46 | { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, | |
47 | { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, | |
48 | { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, | |
49 | { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 } | |
50 | }; | |
51 | ||
52 | typedef struct iclass_block { | |
53 | uint8_t d[8]; | |
54 | } iclass_block_t; | |
55 | ||
56 | int usage_hf_iclass_chk(void) { | |
57 | PrintAndLog("Checkkeys loads a dictionary text file with 8byte hex keys to test authenticating against a iClass tag"); | |
58 | PrintAndLog("Usage: hf iclass chk [h|e|r] <f (*.dic)>"); | |
59 | PrintAndLog("Options:"); | |
60 | PrintAndLog("h Show this help"); | |
61 | PrintAndLog("f <filename> Dictionary file with default iclass keys"); | |
62 | PrintAndLog(" e target Elite / High security key scheme"); | |
63 | PrintAndLog(" r interpret dictionary file as raw (diversified keys)"); | |
64 | PrintAndLog("Samples:"); | |
65 | PrintAndLog(" hf iclass chk f default_iclass_keys.dic"); | |
66 | PrintAndLog(" hf iclass chk f default_iclass_keys.dic e"); | |
67 | return 0; | |
68 | } | |
69 | ||
70 | int xorbits_8(uint8_t val) { | |
71 | uint8_t res = val ^ (val >> 1); //1st pass | |
72 | res = res ^ (res >> 1); // 2nd pass | |
73 | res = res ^ (res >> 2); // 3rd pass | |
74 | res = res ^ (res >> 4); // 4th pass | |
75 | return res & 1; | |
76 | } | |
77 | ||
78 | int CmdHFiClassList(const char *Cmd) { | |
79 | PrintAndLog("Deprecated command, use 'hf list iclass' instead"); | |
80 | return 0; | |
81 | } | |
82 | ||
83 | int CmdHFiClassSnoop(const char *Cmd) { | |
84 | UsbCommand c = {CMD_SNOOP_ICLASS}; | |
85 | SendCommand(&c); | |
86 | return 0; | |
87 | } | |
88 | ||
89 | int usage_hf_iclass_sim(void) { | |
90 | PrintAndLog("Usage: hf iclass sim <option> [CSN]"); | |
91 | PrintAndLog(" options"); | |
92 | PrintAndLog(" 0 <CSN> simulate the given CSN"); | |
93 | PrintAndLog(" 1 simulate default CSN"); | |
94 | PrintAndLog(" 2 Reader-attack, gather reader responses to extract elite key"); | |
95 | PrintAndLog(" 3 Full simulation using emulator memory (see 'hf iclass eload')"); | |
96 | PrintAndLog(" example: hf iclass sim 0 031FEC8AF7FF12E0"); | |
97 | PrintAndLog(" example: hf iclass sim 2"); | |
98 | PrintAndLog(" example: hf iclass eload 'tagdump.bin'"); | |
99 | PrintAndLog(" hf iclass sim 3"); | |
100 | return 0; | |
101 | } | |
102 | ||
103 | // the original malicious IDs from Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult, | |
104 | // and Milosch Meriac. Dismantling iClass and iClass Elite. | |
105 | #define NUM_CSNS 15 | |
106 | static uint8_t csns[8 * NUM_CSNS] = { | |
107 | 0x00, 0x0B, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0, | |
108 | 0x00, 0x04, 0x0E, 0x08, 0xF7, 0xFF, 0x12, 0xE0, | |
109 | 0x00, 0x09, 0x0D, 0x05, 0xF7, 0xFF, 0x12, 0xE0, | |
110 | 0x00, 0x0A, 0x0C, 0x06, 0xF7, 0xFF, 0x12, 0xE0, | |
111 | 0x00, 0x0F, 0x0B, 0x03, 0xF7, 0xFF, 0x12, 0xE0, | |
112 | 0x00, 0x08, 0x0A, 0x0C, 0xF7, 0xFF, 0x12, 0xE0, | |
113 | 0x00, 0x0D, 0x09, 0x09, 0xF7, 0xFF, 0x12, 0xE0, | |
114 | 0x00, 0x0E, 0x08, 0x0A, 0xF7, 0xFF, 0x12, 0xE0, | |
115 | 0x00, 0x03, 0x07, 0x17, 0xF7, 0xFF, 0x12, 0xE0, | |
116 | 0x00, 0x3C, 0x06, 0xE0, 0xF7, 0xFF, 0x12, 0xE0, | |
117 | 0x00, 0x01, 0x05, 0x1D, 0xF7, 0xFF, 0x12, 0xE0, | |
118 | 0x00, 0x02, 0x04, 0x1E, 0xF7, 0xFF, 0x12, 0xE0, | |
119 | 0x00, 0x07, 0x03, 0x1B, 0xF7, 0xFF, 0x12, 0xE0, | |
120 | 0x00, 0x00, 0x02, 0x24, 0xF7, 0xFF, 0x12, 0xE0, | |
121 | 0x00, 0x05, 0x01, 0x21, 0xF7, 0xFF, 0x12, 0xE0 }; | |
122 | ||
123 | ||
124 | // pre-defined 9 CSNs by iceman. | |
125 | // only one csn depend on several others. | |
126 | // six depends only on the first csn, (0,1, 0x45) | |
127 | ||
128 | // #define NUM_CSNS 9 | |
129 | // static uint8_t csns[8 * NUM_CSNS] = { | |
130 | // 0x01, 0x0A, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0, | |
131 | // 0x0C, 0x06, 0x0C, 0xFE, 0xF7, 0xFF, 0x12, 0xE0, | |
132 | // 0x10, 0x97, 0x83, 0x7B, 0xF7, 0xFF, 0x12, 0xE0, | |
133 | // 0x13, 0x97, 0x82, 0x7A, 0xF7, 0xFF, 0x12, 0xE0, | |
134 | // 0x07, 0x0E, 0x0D, 0xF9, 0xF7, 0xFF, 0x12, 0xE0, | |
135 | // 0x14, 0x96, 0x84, 0x76, 0xF7, 0xFF, 0x12, 0xE0, | |
136 | // 0x17, 0x96, 0x85, 0x71, 0xF7, 0xFF, 0x12, 0xE0, | |
137 | // 0xCE, 0xC5, 0x0F, 0x77, 0xF7, 0xFF, 0x12, 0xE0, | |
138 | // 0xD2, 0x5A, 0x82, 0xF8, 0xF7, 0xFF, 0x12, 0xE0 | |
139 | // //0x04, 0x08, 0x9F, 0x78, 0x6E, 0xFF, 0x12, 0xE0 | |
140 | // }; | |
141 | ||
142 | ||
143 | int CmdHFiClassSim(const char *Cmd) { | |
144 | uint8_t simType = 0; | |
145 | uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0}; | |
146 | ||
147 | if (strlen(Cmd)<1) { | |
148 | return usage_hf_iclass_sim(); | |
149 | } | |
150 | simType = param_get8ex(Cmd, 0, 0, 10); | |
151 | ||
152 | if (simType == ICLASS_SIM_MODE_CSN) { | |
153 | if (param_gethex(Cmd, 1, CSN, 16)) { | |
154 | PrintAndLog("A CSN should consist of 16 HEX symbols"); | |
155 | return usage_hf_iclass_sim(); | |
156 | } | |
157 | PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8)); | |
158 | } | |
159 | ||
160 | uint8_t numberOfCSNs = 0; | |
161 | if (simType == ICLASS_SIM_MODE_READER_ATTACK) { | |
162 | UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType, NUM_CSNS}}; | |
163 | UsbCommand resp = {0}; | |
164 | ||
165 | memcpy(c.d.asBytes, csns, 8 * NUM_CSNS); | |
166 | ||
167 | SendCommand(&c); | |
168 | if (!WaitForResponseTimeout(CMD_ACK, &resp, -1)) { | |
169 | PrintAndLog("Command timed out"); | |
170 | return 0; | |
171 | } | |
172 | ||
173 | uint8_t num_mac_responses = resp.arg[1]; | |
174 | PrintAndLog("Mac responses: %d MACs obtained (should be %d)", num_mac_responses, NUM_CSNS); | |
175 | ||
176 | size_t datalen = NUM_CSNS * 24; | |
177 | /* | |
178 | * Now, time to dump to file. We'll use this format: | |
179 | * <8-byte CSN><8-byte CC><4 byte NR><4 byte MAC>.... | |
180 | * So, it should wind up as | |
181 | * 8 * 24 bytes. | |
182 | * | |
183 | * The returndata from the pm3 is on the following format | |
184 | * <8 byte CC><4 byte NR><4 byte MAC> | |
185 | * CSN is the same as was sent in | |
186 | **/ | |
187 | void* dump = malloc(datalen); | |
188 | for(int i = 0; i < NUM_CSNS; i++) { | |
189 | memcpy(dump + i*24, csns+i*8, 8); //CSN | |
190 | //copy CC from response | |
191 | memcpy(dump + i*24 + 8, resp.d.asBytes + i*16, 8); | |
192 | //Then comes NR_MAC (eight bytes from the response) | |
193 | memcpy(dump + i*24 + 16, resp.d.asBytes + i*16 + 8, 8); | |
194 | } | |
195 | /** Now, save to dumpfile **/ | |
196 | saveFile("iclass_mac_attack", "bin", dump,datalen); | |
197 | free(dump); | |
198 | ||
199 | } else if (simType == ICLASS_SIM_MODE_CSN || simType == ICLASS_SIM_MODE_CSN_DEFAULT) { | |
200 | UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType, numberOfCSNs}}; | |
201 | memcpy(c.d.asBytes, CSN, 8); | |
202 | SendCommand(&c); | |
203 | ||
204 | } else { | |
205 | PrintAndLog("Undefined simtype %d", simType); | |
206 | return usage_hf_iclass_sim(); | |
207 | } | |
208 | ||
209 | return 0; | |
210 | } | |
211 | ||
212 | int HFiClassReader(const char *Cmd, bool loop, bool verbose) { | |
213 | bool tagFound = false; | |
214 | UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_CSN | | |
215 | FLAG_ICLASS_READER_CC | FLAG_ICLASS_READER_CONF | FLAG_ICLASS_READER_AA | | |
216 | FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_ONE_TRY } }; | |
217 | // loop in client not device - else on windows have a communication error | |
218 | UsbCommand resp; | |
219 | while(!ukbhit()){ | |
220 | SendCommand(&c); | |
221 | if (WaitForResponseTimeout(CMD_ACK,&resp, 4500)) { | |
222 | uint8_t readStatus = resp.arg[0] & 0xff; | |
223 | uint8_t *data = resp.d.asBytes; | |
224 | ||
225 | // no tag found or button pressed | |
226 | if( (readStatus == 0 && !loop) || readStatus == 0xFF) { | |
227 | // abort | |
228 | if (verbose) PrintAndLog("Quitting..."); | |
229 | return 0; | |
230 | } | |
231 | ||
232 | if( readStatus & FLAG_ICLASS_READER_CSN) { | |
233 | PrintAndLog(" CSN: %s",sprint_hex(data,8)); | |
234 | tagFound = true; | |
235 | } | |
236 | if( readStatus & FLAG_ICLASS_READER_CC) { | |
237 | PrintAndLog(" CC: %s",sprint_hex(data+16,8)); | |
238 | } | |
239 | if( readStatus & FLAG_ICLASS_READER_CONF) { | |
240 | printIclassDumpInfo(data); | |
241 | } | |
242 | if (readStatus & FLAG_ICLASS_READER_AA) { | |
243 | bool legacy = true; | |
244 | PrintAndLog(" AppIA: %s",sprint_hex(data+8*5,8)); | |
245 | for (int i = 0; i<8; i++) { | |
246 | if (data[8*5+i] != 0xFF) { | |
247 | legacy = false; | |
248 | } | |
249 | } | |
250 | PrintAndLog(" : Possible iClass %s",(legacy) ? "(legacy tag)" : "(NOT legacy tag)"); | |
251 | } | |
252 | ||
253 | if (tagFound && !loop) return 1; | |
254 | } else { | |
255 | if (verbose) PrintAndLog("Command execute timeout"); | |
256 | } | |
257 | if (!loop) break; | |
258 | } | |
259 | return 0; | |
260 | } | |
261 | ||
262 | int CmdHFiClassReader(const char *Cmd) { | |
263 | return HFiClassReader(Cmd, true, true); | |
264 | } | |
265 | ||
266 | int CmdHFiClassReader_Replay(const char *Cmd) { | |
267 | uint8_t readerType = 0; | |
268 | uint8_t MAC[4]={0x00, 0x00, 0x00, 0x00}; | |
269 | ||
270 | if (strlen(Cmd)<1) { | |
271 | PrintAndLog("Usage: hf iclass replay <MAC>"); | |
272 | PrintAndLog(" sample: hf iclass replay 00112233"); | |
273 | return 0; | |
274 | } | |
275 | ||
276 | if (param_gethex(Cmd, 0, MAC, 8)) { | |
277 | PrintAndLog("MAC must include 8 HEX symbols"); | |
278 | return 1; | |
279 | } | |
280 | ||
281 | UsbCommand c = {CMD_READER_ICLASS_REPLAY, {readerType}}; | |
282 | memcpy(c.d.asBytes, MAC, 4); | |
283 | SendCommand(&c); | |
284 | ||
285 | return 0; | |
286 | } | |
287 | ||
288 | int iclassEmlSetMem(uint8_t *data, int blockNum, int blocksCount) { | |
289 | UsbCommand c = {CMD_MIFARE_EML_MEMSET, {blockNum, blocksCount, 0}}; | |
290 | memcpy(c.d.asBytes, data, blocksCount * 16); | |
291 | SendCommand(&c); | |
292 | return 0; | |
293 | } | |
294 | ||
295 | int hf_iclass_eload_usage(void) { | |
296 | PrintAndLog("Loads iclass tag-dump into emulator memory on device"); | |
297 | PrintAndLog("Usage: hf iclass eload f <filename>"); | |
298 | PrintAndLog(""); | |
299 | PrintAndLog("Example: hf iclass eload f iclass_tagdump-aa162d30f8ff12f1.bin"); | |
300 | return 0; | |
301 | } | |
302 | ||
303 | int CmdHFiClassELoad(const char *Cmd) { | |
304 | ||
305 | char opt = param_getchar(Cmd, 0); | |
306 | if (strlen(Cmd)<1 || opt == 'h') | |
307 | return hf_iclass_eload_usage(); | |
308 | ||
309 | //File handling and reading | |
310 | FILE *f; | |
311 | char filename[FILE_PATH_SIZE]; | |
312 | if(opt == 'f' && param_getstr(Cmd, 1, filename, sizeof(filename)) > 0) | |
313 | { | |
314 | f = fopen(filename, "rb"); | |
315 | }else{ | |
316 | return hf_iclass_eload_usage(); | |
317 | } | |
318 | ||
319 | if(!f) { | |
320 | PrintAndLog("Failed to read from file '%s'", filename); | |
321 | return 1; | |
322 | } | |
323 | ||
324 | fseek(f, 0, SEEK_END); | |
325 | long fsize = ftell(f); | |
326 | fseek(f, 0, SEEK_SET); | |
327 | ||
328 | if (fsize < 0) { | |
329 | PrintAndLog("Error, when getting filesize"); | |
330 | fclose(f); | |
331 | return 1; | |
332 | } | |
333 | ||
334 | uint8_t *dump = malloc(fsize); | |
335 | ||
336 | size_t bytes_read = fread(dump, 1, fsize, f); | |
337 | fclose(f); | |
338 | ||
339 | printIclassDumpInfo(dump); | |
340 | //Validate | |
341 | ||
342 | if (bytes_read < fsize) | |
343 | { | |
344 | prnlog("Error, could only read %d bytes (should be %d)",bytes_read, fsize ); | |
345 | free(dump); | |
346 | return 1; | |
347 | } | |
348 | //Send to device | |
349 | uint32_t bytes_sent = 0; | |
350 | uint32_t bytes_remaining = bytes_read; | |
351 | ||
352 | while(bytes_remaining > 0){ | |
353 | uint32_t bytes_in_packet = MIN(USB_CMD_DATA_SIZE, bytes_remaining); | |
354 | UsbCommand c = {CMD_ICLASS_EML_MEMSET, {bytes_sent,bytes_in_packet,0}}; | |
355 | memcpy(c.d.asBytes, dump, bytes_in_packet); | |
356 | SendCommand(&c); | |
357 | bytes_remaining -= bytes_in_packet; | |
358 | bytes_sent += bytes_in_packet; | |
359 | } | |
360 | free(dump); | |
361 | PrintAndLog("Sent %d bytes of data to device emulator memory", bytes_sent); | |
362 | return 0; | |
363 | } | |
364 | ||
365 | static int readKeyfile(const char *filename, size_t len, uint8_t* buffer) { | |
366 | FILE *f = fopen(filename, "rb"); | |
367 | if(!f) { | |
368 | PrintAndLog("Failed to read from file '%s'", filename); | |
369 | return 1; | |
370 | } | |
371 | fseek(f, 0, SEEK_END); | |
372 | long fsize = ftell(f); | |
373 | fseek(f, 0, SEEK_SET); | |
374 | size_t bytes_read = fread(buffer, 1, len, f); | |
375 | fclose(f); | |
376 | if(fsize != len) | |
377 | { | |
378 | PrintAndLog("Warning, file size is %d, expected %d", fsize, len); | |
379 | return 1; | |
380 | } | |
381 | if(bytes_read != len) | |
382 | { | |
383 | PrintAndLog("Warning, could only read %d bytes, expected %d" ,bytes_read, len); | |
384 | return 1; | |
385 | } | |
386 | return 0; | |
387 | } | |
388 | ||
389 | int usage_hf_iclass_decrypt(void) { | |
390 | PrintAndLog("Usage: hf iclass decrypt f <tagdump>"); | |
391 | PrintAndLog(""); | |
392 | PrintAndLog("OBS! In order to use this function, the file 'iclass_decryptionkey.bin' must reside"); | |
393 | PrintAndLog("in the working directory. The file should be 16 bytes binary data"); | |
394 | PrintAndLog(""); | |
395 | PrintAndLog("example: hf iclass decrypt f tagdump_12312342343.bin"); | |
396 | PrintAndLog(""); | |
397 | PrintAndLog("OBS! This is pretty stupid implementation, it tries to decrypt every block after block 6. "); | |
398 | PrintAndLog("Correct behaviour would be to decrypt only the application areas where the key is valid,"); | |
399 | PrintAndLog("which is defined by the configuration block."); | |
400 | return 1; | |
401 | } | |
402 | ||
403 | int CmdHFiClassDecrypt(const char *Cmd) { | |
404 | uint8_t key[16] = { 0 }; | |
405 | if(readKeyfile("iclass_decryptionkey.bin", 16, key)) | |
406 | { | |
407 | usage_hf_iclass_decrypt(); | |
408 | return 1; | |
409 | } | |
410 | PrintAndLog("Decryption file found... "); | |
411 | char opt = param_getchar(Cmd, 0); | |
412 | if (strlen(Cmd)<1 || opt == 'h') | |
413 | return usage_hf_iclass_decrypt(); | |
414 | ||
415 | //Open the tagdump-file | |
416 | FILE *f; | |
417 | char filename[FILE_PATH_SIZE]; | |
418 | if(opt == 'f' && param_getstr(Cmd, 1, filename, sizeof(filename)) > 0) { | |
419 | f = fopen(filename, "rb"); | |
420 | if ( f == NULL ) { | |
421 | PrintAndLog("Could not find file %s", filename); | |
422 | return 1; | |
423 | } | |
424 | } else { | |
425 | return usage_hf_iclass_decrypt(); | |
426 | } | |
427 | ||
428 | fseek(f, 0, SEEK_END); | |
429 | long fsize = ftell(f); | |
430 | fseek(f, 0, SEEK_SET); | |
431 | uint8_t enc_dump[8] = {0}; | |
432 | uint8_t *decrypted = malloc(fsize); | |
433 | mbedtls_des3_context ctx = { {0} }; | |
434 | mbedtls_des3_set2key_dec( &ctx, key); | |
435 | size_t bytes_read = fread(enc_dump, 1, 8, f); | |
436 | ||
437 | //Use the first block (CSN) for filename | |
438 | char outfilename[FILE_PATH_SIZE] = { 0 }; | |
439 | snprintf(outfilename,FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x-decrypted", | |
440 | enc_dump[0],enc_dump[1],enc_dump[2],enc_dump[3], | |
441 | enc_dump[4],enc_dump[5],enc_dump[6],enc_dump[7]); | |
442 | ||
443 | size_t blocknum =0; | |
444 | while(bytes_read == 8) | |
445 | { | |
446 | if(blocknum < 7) | |
447 | { | |
448 | memcpy(decrypted+(blocknum*8), enc_dump, 8); | |
449 | }else{ | |
450 | mbedtls_des3_crypt_ecb(&ctx, enc_dump,decrypted +(blocknum*8) ); | |
451 | } | |
452 | printvar("decrypted block", decrypted +(blocknum*8), 8); | |
453 | bytes_read = fread(enc_dump, 1, 8, f); | |
454 | blocknum++; | |
455 | } | |
456 | fclose(f); | |
457 | ||
458 | saveFile(outfilename,"bin", decrypted, blocknum*8); | |
459 | free(decrypted); | |
460 | return 0; | |
461 | } | |
462 | ||
463 | int usage_hf_iclass_encrypt(void) { | |
464 | PrintAndLog("Usage: hf iclass encrypt <BlockData>"); | |
465 | PrintAndLog(""); | |
466 | PrintAndLog("OBS! In order to use this function, the file 'iclass_decryptionkey.bin' must reside"); | |
467 | PrintAndLog("in the working directory. The file should be 16 bytes binary data"); | |
468 | PrintAndLog(""); | |
469 | PrintAndLog("example: hf iclass encrypt 0102030405060708"); | |
470 | PrintAndLog(""); | |
471 | return 0; | |
472 | } | |
473 | ||
474 | static int iClassEncryptBlkData(uint8_t *blkData) { | |
475 | uint8_t key[16] = { 0 }; | |
476 | if(readKeyfile("iclass_decryptionkey.bin", 16, key)) | |
477 | { | |
478 | usage_hf_iclass_encrypt(); | |
479 | return 1; | |
480 | } | |
481 | PrintAndLog("Decryption file found... "); | |
482 | ||
483 | uint8_t encryptedData[16]; | |
484 | uint8_t *encrypted = encryptedData; | |
485 | mbedtls_des3_context ctx = { {0} }; | |
486 | mbedtls_des3_set2key_enc( &ctx, key); | |
487 | ||
488 | mbedtls_des3_crypt_ecb(&ctx, blkData,encrypted); | |
489 | //printvar("decrypted block", decrypted, 8); | |
490 | memcpy(blkData,encrypted,8); | |
491 | ||
492 | return 1; | |
493 | } | |
494 | ||
495 | int CmdHFiClassEncryptBlk(const char *Cmd) { | |
496 | uint8_t blkData[8] = {0}; | |
497 | char opt = param_getchar(Cmd, 0); | |
498 | if (strlen(Cmd)<1 || opt == 'h') | |
499 | return usage_hf_iclass_encrypt(); | |
500 | ||
501 | //get the bytes to encrypt | |
502 | if (param_gethex(Cmd, 0, blkData, 16)) | |
503 | { | |
504 | PrintAndLog("BlockData must include 16 HEX symbols"); | |
505 | return 0; | |
506 | } | |
507 | if (!iClassEncryptBlkData(blkData)) return 0; | |
508 | ||
509 | printvar("encrypted block", blkData, 8); | |
510 | return 1; | |
511 | } | |
512 | ||
513 | void Calc_wb_mac(uint8_t blockno, uint8_t *data, uint8_t *div_key, uint8_t MAC[4]) { | |
514 | uint8_t WB[9]; | |
515 | WB[0] = blockno; | |
516 | memcpy(WB + 1,data,8); | |
517 | doMAC_N(WB,sizeof(WB),div_key,MAC); | |
518 | //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]); | |
519 | } | |
520 | ||
521 | static bool select_only(uint8_t *CSN, uint8_t *CCNR, bool use_credit_key, bool verbose) { | |
522 | UsbCommand resp; | |
523 | ||
524 | UsbCommand c = {CMD_READER_ICLASS, {0}}; | |
525 | c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_CC | FLAG_ICLASS_READER_ONE_TRY; | |
526 | if (use_credit_key) | |
527 | c.arg[0] |= FLAG_ICLASS_READER_CEDITKEY; | |
528 | ||
529 | clearCommandBuffer(); | |
530 | SendCommand(&c); | |
531 | if (!WaitForResponseTimeout(CMD_ACK,&resp,4500)) | |
532 | { | |
533 | PrintAndLog("Command execute timeout"); | |
534 | return false; | |
535 | } | |
536 | ||
537 | uint8_t isOK = resp.arg[0] & 0xff; | |
538 | uint8_t *data = resp.d.asBytes; | |
539 | ||
540 | memcpy(CSN,data,8); | |
541 | if (CCNR!=NULL)memcpy(CCNR,data+16,8); | |
542 | if(isOK > 0) | |
543 | { | |
544 | if (verbose) PrintAndLog("CSN: %s",sprint_hex(CSN,8)); | |
545 | } | |
546 | if(isOK <= 1){ | |
547 | PrintAndLog("Failed to obtain CC! Aborting"); | |
548 | return false; | |
549 | } | |
550 | return true; | |
551 | } | |
552 | ||
553 | 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) { | |
554 | uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
555 | uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
556 | ||
557 | if (!select_only(CSN, CCNR, use_credit_key, verbose)) | |
558 | return false; | |
559 | ||
560 | //get div_key | |
561 | if(rawkey) | |
562 | memcpy(div_key, KEY, 8); | |
563 | else | |
564 | HFiClassCalcDivKey(CSN, KEY, div_key, elite); | |
565 | if (verbose) 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]); | |
566 | ||
567 | doMAC(CCNR, div_key, MAC); | |
568 | UsbCommand resp; | |
569 | UsbCommand d = {CMD_ICLASS_AUTHENTICATION, {0}}; | |
570 | memcpy(d.d.asBytes, MAC, 4); | |
571 | clearCommandBuffer(); | |
572 | SendCommand(&d); | |
573 | if (!WaitForResponseTimeout(CMD_ACK,&resp,4500)) | |
574 | { | |
575 | if (verbose) PrintAndLog("Auth Command execute timeout"); | |
576 | return false; | |
577 | } | |
578 | uint8_t isOK = resp.arg[0] & 0xff; | |
579 | if (!isOK) { | |
580 | if (verbose) PrintAndLog("Authentication error"); | |
581 | return false; | |
582 | } | |
583 | return true; | |
584 | } | |
585 | ||
586 | int usage_hf_iclass_dump(void) { | |
587 | PrintAndLog("Usage: hf iclass dump f <fileName> k <Key> c <CreditKey> e|r\n"); | |
588 | PrintAndLog("Options:"); | |
589 | PrintAndLog(" f <filename> : specify a filename to save dump to"); | |
590 | PrintAndLog(" k <Key> : *Access Key as 16 hex symbols or 1 hex to select key from memory"); | |
591 | PrintAndLog(" c <CreditKey>: Credit Key as 16 hex symbols or 1 hex to select key from memory"); | |
592 | PrintAndLog(" e : If 'e' is specified, the key is interpreted as the 16 byte"); | |
593 | PrintAndLog(" Custom Key (KCus), which can be obtained via reader-attack"); | |
594 | PrintAndLog(" See 'hf iclass sim 2'. This key should be on iclass-format"); | |
595 | PrintAndLog(" r : If 'r' is specified, the key is interpreted as raw block 3/4"); | |
596 | PrintAndLog(" NOTE: * = required"); | |
597 | PrintAndLog("Samples:"); | |
598 | PrintAndLog(" hf iclass dump k 001122334455667B"); | |
599 | PrintAndLog(" hf iclass dump k AAAAAAAAAAAAAAAA c 001122334455667B"); | |
600 | PrintAndLog(" hf iclass dump k AAAAAAAAAAAAAAAA e"); | |
601 | return 0; | |
602 | } | |
603 | ||
604 | int CmdHFiClassReader_Dump(const char *Cmd) { | |
605 | ||
606 | uint8_t MAC[4] = {0x00,0x00,0x00,0x00}; | |
607 | uint8_t div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
608 | uint8_t c_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
609 | uint8_t blockno = 0; | |
610 | uint8_t numblks = 0; | |
611 | uint8_t maxBlk = 31; | |
612 | uint8_t app_areas = 1; | |
613 | uint8_t kb = 2; | |
614 | uint8_t KEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
615 | uint8_t CreditKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
616 | uint8_t keyNbr = 0; | |
617 | uint8_t dataLen = 0; | |
618 | uint8_t fileNameLen = 0; | |
619 | char filename[FILE_PATH_SIZE]={0}; | |
620 | char tempStr[50] = {0}; | |
621 | bool have_debit_key = false; | |
622 | bool have_credit_key = false; | |
623 | bool use_credit_key = false; | |
624 | bool elite = false; | |
625 | bool rawkey = false; | |
626 | bool errors = false; | |
627 | uint8_t cmdp = 0; | |
628 | ||
629 | while(param_getchar(Cmd, cmdp) != 0x00) | |
630 | { | |
631 | switch(param_getchar(Cmd, cmdp)) | |
632 | { | |
633 | case 'h': | |
634 | case 'H': | |
635 | return usage_hf_iclass_dump(); | |
636 | case 'c': | |
637 | case 'C': | |
638 | have_credit_key = true; | |
639 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
640 | if (dataLen == 16) { | |
641 | errors = param_gethex(tempStr, 0, CreditKEY, dataLen); | |
642 | } else if (dataLen == 1) { | |
643 | keyNbr = param_get8(Cmd, cmdp+1); | |
644 | if (keyNbr < ICLASS_KEYS_MAX) { | |
645 | memcpy(CreditKEY, iClass_Key_Table[keyNbr], 8); | |
646 | } else { | |
647 | PrintAndLog("\nERROR: Credit KeyNbr is invalid\n"); | |
648 | errors = true; | |
649 | } | |
650 | } else { | |
651 | PrintAndLog("\nERROR: Credit Key is incorrect length\n"); | |
652 | errors = true; | |
653 | } | |
654 | cmdp += 2; | |
655 | break; | |
656 | case 'e': | |
657 | case 'E': | |
658 | elite = true; | |
659 | cmdp++; | |
660 | break; | |
661 | case 'f': | |
662 | case 'F': | |
663 | fileNameLen = param_getstr(Cmd, cmdp+1, filename, sizeof(filename)); | |
664 | if (fileNameLen < 1) { | |
665 | PrintAndLog("No filename found after f"); | |
666 | errors = true; | |
667 | } | |
668 | cmdp += 2; | |
669 | break; | |
670 | case 'k': | |
671 | case 'K': | |
672 | have_debit_key = true; | |
673 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
674 | if (dataLen == 16) { | |
675 | errors = param_gethex(tempStr, 0, KEY, dataLen); | |
676 | } else if (dataLen == 1) { | |
677 | keyNbr = param_get8(Cmd, cmdp+1); | |
678 | if (keyNbr < ICLASS_KEYS_MAX) { | |
679 | memcpy(KEY, iClass_Key_Table[keyNbr], 8); | |
680 | } else { | |
681 | PrintAndLog("\nERROR: Credit KeyNbr is invalid\n"); | |
682 | errors = true; | |
683 | } | |
684 | } else { | |
685 | PrintAndLog("\nERROR: Credit Key is incorrect length\n"); | |
686 | errors = true; | |
687 | } | |
688 | cmdp += 2; | |
689 | break; | |
690 | case 'r': | |
691 | case 'R': | |
692 | rawkey = true; | |
693 | cmdp++; | |
694 | break; | |
695 | default: | |
696 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
697 | errors = true; | |
698 | break; | |
699 | } | |
700 | if(errors) return usage_hf_iclass_dump(); | |
701 | } | |
702 | ||
703 | if (cmdp < 2) return usage_hf_iclass_dump(); | |
704 | // if no debit key given try credit key on AA1 (not for iclass but for some picopass this will work) | |
705 | if (!have_debit_key && have_credit_key) use_credit_key = true; | |
706 | ||
707 | //get config and first 3 blocks | |
708 | UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_CSN | | |
709 | FLAG_ICLASS_READER_CONF | FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_ONE_TRY}}; | |
710 | UsbCommand resp; | |
711 | uint8_t tag_data[255*8]; | |
712 | ||
713 | clearCommandBuffer(); | |
714 | SendCommand(&c); | |
715 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) { | |
716 | PrintAndLog("Command execute timeout"); | |
717 | DropField(); | |
718 | return 0; | |
719 | } | |
720 | uint8_t readStatus = resp.arg[0] & 0xff; | |
721 | uint8_t *data = resp.d.asBytes; | |
722 | ||
723 | if(readStatus == 0){ | |
724 | PrintAndLog("No tag found..."); | |
725 | DropField(); | |
726 | return 0; | |
727 | } | |
728 | if( readStatus & (FLAG_ICLASS_READER_CSN|FLAG_ICLASS_READER_CONF|FLAG_ICLASS_READER_CC)){ | |
729 | memcpy(tag_data, data, 8*3); | |
730 | blockno+=2; // 2 to force re-read of block 2 later. (seems to respond differently..) | |
731 | numblks = data[8]; | |
732 | getMemConfig(data[13], data[12], &maxBlk, &app_areas, &kb); | |
733 | // large memory - not able to dump pages currently | |
734 | if (numblks > maxBlk) numblks = maxBlk; | |
735 | } | |
736 | DropField(); | |
737 | // authenticate debit key and get div_key - later store in dump block 3 | |
738 | if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, false)){ | |
739 | //try twice - for some reason it sometimes fails the first time... | |
740 | if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, false)){ | |
741 | DropField(); | |
742 | return 0; | |
743 | } | |
744 | } | |
745 | ||
746 | // begin dump | |
747 | UsbCommand w = {CMD_ICLASS_DUMP, {blockno, numblks-blockno+1}}; | |
748 | clearCommandBuffer(); | |
749 | SendCommand(&w); | |
750 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) { | |
751 | PrintAndLog("Command execute time-out 1"); | |
752 | DropField(); | |
753 | return 1; | |
754 | } | |
755 | uint32_t blocksRead = resp.arg[1]; | |
756 | uint8_t isOK = resp.arg[0] & 0xff; | |
757 | if (!isOK && !blocksRead) { | |
758 | PrintAndLog("Read Block Failed"); | |
759 | DropField(); | |
760 | return 0; | |
761 | } | |
762 | uint32_t startindex = resp.arg[2]; | |
763 | if (blocksRead*8 > sizeof(tag_data)-(blockno*8)) { | |
764 | PrintAndLog("Data exceeded Buffer size!"); | |
765 | blocksRead = (sizeof(tag_data)/8) - blockno; | |
766 | } | |
767 | // response ok - now get bigbuf content of the dump | |
768 | GetFromBigBuf(tag_data+(blockno*8), blocksRead*8, startindex, NULL, -1, false); | |
769 | size_t gotBytes = blocksRead*8 + blockno*8; | |
770 | ||
771 | // try AA2 | |
772 | if (have_credit_key) { | |
773 | //turn off hf field before authenticating with different key | |
774 | DropField(); | |
775 | memset(MAC,0,4); | |
776 | // AA2 authenticate credit key and git c_div_key - later store in dump block 4 | |
777 | if (!select_and_auth(CreditKEY, MAC, c_div_key, true, false, false, false)){ | |
778 | //try twice - for some reason it sometimes fails the first time... | |
779 | if (!select_and_auth(CreditKEY, MAC, c_div_key, true, false, false, false)){ | |
780 | DropField(); | |
781 | return 0; | |
782 | } | |
783 | } | |
784 | // do we still need to read more block? (aa2 enabled?) | |
785 | if (maxBlk > blockno+numblks+1) { | |
786 | // setup dump and start | |
787 | w.arg[0] = blockno + blocksRead; | |
788 | w.arg[1] = maxBlk - (blockno + blocksRead); | |
789 | clearCommandBuffer(); | |
790 | SendCommand(&w); | |
791 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) { | |
792 | PrintAndLog("Command execute timeout 2"); | |
793 | DropField(); | |
794 | return 0; | |
795 | } | |
796 | uint8_t isOK = resp.arg[0] & 0xff; | |
797 | blocksRead = resp.arg[1]; | |
798 | if (!isOK && !blocksRead) { | |
799 | PrintAndLog("Read Block Failed 2"); | |
800 | DropField(); | |
801 | return 0; | |
802 | } | |
803 | ||
804 | startindex = resp.arg[2]; | |
805 | if (blocksRead*8 > sizeof(tag_data)-gotBytes) { | |
806 | PrintAndLog("Data exceeded Buffer size!"); | |
807 | blocksRead = (sizeof(tag_data) - gotBytes)/8; | |
808 | } | |
809 | // get dumped data from bigbuf | |
810 | GetFromBigBuf(tag_data+gotBytes, blocksRead*8, startindex, NULL, -1, false); | |
811 | ||
812 | gotBytes += blocksRead*8; | |
813 | } else { //field is still on - turn it off... | |
814 | DropField(); | |
815 | } | |
816 | } | |
817 | ||
818 | // add diversified keys to dump | |
819 | if (have_debit_key) memcpy(tag_data+(3*8),div_key,8); | |
820 | if (have_credit_key) memcpy(tag_data+(4*8),c_div_key,8); | |
821 | // print the dump | |
822 | printf("------+--+-------------------------+\n"); | |
823 | printf("CSN |00| %s|\n",sprint_hex(tag_data, 8)); | |
824 | printIclassDumpContents(tag_data, 1, (gotBytes/8), gotBytes); | |
825 | ||
826 | if (filename[0] == 0){ | |
827 | snprintf(filename, FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x", | |
828 | tag_data[0],tag_data[1],tag_data[2],tag_data[3], | |
829 | tag_data[4],tag_data[5],tag_data[6],tag_data[7]); | |
830 | } | |
831 | ||
832 | // save the dump to .bin file | |
833 | PrintAndLog("Saving dump file - %d blocks read", gotBytes/8); | |
834 | saveFile(filename, "bin", tag_data, gotBytes); | |
835 | return 1; | |
836 | } | |
837 | ||
838 | static int WriteBlock(uint8_t blockno, uint8_t *bldata, uint8_t *KEY, bool use_credit_key, bool elite, bool rawkey, bool verbose) { | |
839 | uint8_t MAC[4]={0x00,0x00,0x00,0x00}; | |
840 | uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
841 | if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, verbose)) | |
842 | return 0; | |
843 | ||
844 | UsbCommand resp; | |
845 | ||
846 | Calc_wb_mac(blockno,bldata,div_key,MAC); | |
847 | UsbCommand w = {CMD_ICLASS_WRITEBLOCK, {blockno}}; | |
848 | memcpy(w.d.asBytes, bldata, 8); | |
849 | memcpy(w.d.asBytes + 8, MAC, 4); | |
850 | ||
851 | clearCommandBuffer(); | |
852 | SendCommand(&w); | |
853 | if (!WaitForResponseTimeout(CMD_ACK,&resp,4500)) | |
854 | { | |
855 | PrintAndLog("Write Command execute timeout"); | |
856 | return 0; | |
857 | } | |
858 | uint8_t isOK = resp.arg[0] & 0xff; | |
859 | if (!isOK) { | |
860 | PrintAndLog("Write Block Failed"); | |
861 | return 0; | |
862 | } | |
863 | PrintAndLog("Write Block Successful"); | |
864 | return 1; | |
865 | } | |
866 | ||
867 | int usage_hf_iclass_writeblock(void) { | |
868 | PrintAndLog("Options:"); | |
869 | PrintAndLog(" b <Block> : The block number as 2 hex symbols"); | |
870 | PrintAndLog(" d <data> : Set the Data to write as 16 hex symbols"); | |
871 | PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory"); | |
872 | PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n"); | |
873 | PrintAndLog(" e : If 'e' is specified, elite computations applied to key"); | |
874 | PrintAndLog(" r : If 'r' is specified, no computations applied to key"); | |
875 | PrintAndLog("Samples:"); | |
876 | PrintAndLog(" hf iclass writeblk b 0A d AAAAAAAAAAAAAAAA k 001122334455667B"); | |
877 | PrintAndLog(" hf iclass writeblk b 1B d AAAAAAAAAAAAAAAA k 001122334455667B c"); | |
878 | PrintAndLog(" hf iclass writeblk b 0A d AAAAAAAAAAAAAAAA n 0"); | |
879 | return 0; | |
880 | } | |
881 | ||
882 | int CmdHFiClass_WriteBlock(const char *Cmd) { | |
883 | uint8_t blockno=0; | |
884 | uint8_t bldata[8]={0,0,0,0,0,0,0,0}; | |
885 | uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
886 | uint8_t keyNbr = 0; | |
887 | uint8_t dataLen = 0; | |
888 | char tempStr[50] = {0}; | |
889 | bool use_credit_key = false; | |
890 | bool elite = false; | |
891 | bool rawkey= false; | |
892 | bool errors = false; | |
893 | uint8_t cmdp = 0; | |
894 | while(param_getchar(Cmd, cmdp) != 0x00) | |
895 | { | |
896 | switch(param_getchar(Cmd, cmdp)) | |
897 | { | |
898 | case 'h': | |
899 | case 'H': | |
900 | return usage_hf_iclass_writeblock(); | |
901 | case 'b': | |
902 | case 'B': | |
903 | if (param_gethex(Cmd, cmdp+1, &blockno, 2)) { | |
904 | PrintAndLog("Block No must include 2 HEX symbols\n"); | |
905 | errors = true; | |
906 | } | |
907 | cmdp += 2; | |
908 | break; | |
909 | case 'c': | |
910 | case 'C': | |
911 | use_credit_key = true; | |
912 | cmdp++; | |
913 | break; | |
914 | case 'd': | |
915 | case 'D': | |
916 | if (param_gethex(Cmd, cmdp+1, bldata, 16)) | |
917 | { | |
918 | PrintAndLog("KEY must include 16 HEX symbols\n"); | |
919 | errors = true; | |
920 | } | |
921 | cmdp += 2; | |
922 | break; | |
923 | case 'e': | |
924 | case 'E': | |
925 | elite = true; | |
926 | cmdp++; | |
927 | break; | |
928 | case 'k': | |
929 | case 'K': | |
930 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
931 | if (dataLen == 16) { | |
932 | errors = param_gethex(tempStr, 0, KEY, dataLen); | |
933 | } else if (dataLen == 1) { | |
934 | keyNbr = param_get8(Cmd, cmdp+1); | |
935 | if (keyNbr < ICLASS_KEYS_MAX) { | |
936 | memcpy(KEY, iClass_Key_Table[keyNbr], 8); | |
937 | } else { | |
938 | PrintAndLog("\nERROR: Credit KeyNbr is invalid\n"); | |
939 | errors = true; | |
940 | } | |
941 | } else { | |
942 | PrintAndLog("\nERROR: Credit Key is incorrect length\n"); | |
943 | errors = true; | |
944 | } | |
945 | cmdp += 2; | |
946 | break; | |
947 | case 'r': | |
948 | case 'R': | |
949 | rawkey = true; | |
950 | cmdp++; | |
951 | break; | |
952 | default: | |
953 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
954 | errors = true; | |
955 | break; | |
956 | } | |
957 | if(errors) return usage_hf_iclass_writeblock(); | |
958 | } | |
959 | ||
960 | if (cmdp < 6) return usage_hf_iclass_writeblock(); | |
961 | int ans = WriteBlock(blockno, bldata, KEY, use_credit_key, elite, rawkey, true); | |
962 | DropField(); | |
963 | return ans; | |
964 | } | |
965 | ||
966 | int usage_hf_iclass_clone(void) { | |
967 | PrintAndLog("Usage: hf iclass clone f <tagfile.bin> b <first block> l <last block> k <KEY> c e|r"); | |
968 | PrintAndLog("Options:"); | |
969 | PrintAndLog(" f <filename>: specify a filename to clone from"); | |
970 | PrintAndLog(" b <Block> : The first block to clone as 2 hex symbols"); | |
971 | PrintAndLog(" l <Last Blk>: Set the Data to write as 16 hex symbols"); | |
972 | PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory"); | |
973 | PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n"); | |
974 | PrintAndLog(" e : If 'e' is specified, elite computations applied to key"); | |
975 | PrintAndLog(" r : If 'r' is specified, no computations applied to key"); | |
976 | PrintAndLog("Samples:"); | |
977 | PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 06 l 1A k 1122334455667788 e"); | |
978 | PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 05 l 19 k 0"); | |
979 | PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 06 l 19 k 0 e"); | |
980 | return -1; | |
981 | } | |
982 | ||
983 | int CmdHFiClassCloneTag(const char *Cmd) { | |
984 | char filename[FILE_PATH_SIZE] = {0}; | |
985 | char tempStr[50]={0}; | |
986 | uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
987 | uint8_t keyNbr = 0; | |
988 | uint8_t fileNameLen = 0; | |
989 | uint8_t startblock = 0; | |
990 | uint8_t endblock = 0; | |
991 | uint8_t dataLen = 0; | |
992 | bool use_credit_key = false; | |
993 | bool elite = false; | |
994 | bool rawkey = false; | |
995 | bool errors = false; | |
996 | uint8_t cmdp = 0; | |
997 | while(param_getchar(Cmd, cmdp) != 0x00) | |
998 | { | |
999 | switch(param_getchar(Cmd, cmdp)) | |
1000 | { | |
1001 | case 'h': | |
1002 | case 'H': | |
1003 | return usage_hf_iclass_clone(); | |
1004 | case 'b': | |
1005 | case 'B': | |
1006 | if (param_gethex(Cmd, cmdp+1, &startblock, 2)) { | |
1007 | PrintAndLog("Start Block No must include 2 HEX symbols\n"); | |
1008 | errors = true; | |
1009 | } | |
1010 | cmdp += 2; | |
1011 | break; | |
1012 | case 'c': | |
1013 | case 'C': | |
1014 | use_credit_key = true; | |
1015 | cmdp++; | |
1016 | break; | |
1017 | case 'e': | |
1018 | case 'E': | |
1019 | elite = true; | |
1020 | cmdp++; | |
1021 | break; | |
1022 | case 'f': | |
1023 | case 'F': | |
1024 | fileNameLen = param_getstr(Cmd, cmdp+1, filename, sizeof(filename)); | |
1025 | if (fileNameLen < 1) { | |
1026 | PrintAndLog("No filename found after f"); | |
1027 | errors = true; | |
1028 | } | |
1029 | cmdp += 2; | |
1030 | break; | |
1031 | case 'k': | |
1032 | case 'K': | |
1033 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
1034 | if (dataLen == 16) { | |
1035 | errors = param_gethex(tempStr, 0, KEY, dataLen); | |
1036 | } else if (dataLen == 1) { | |
1037 | keyNbr = param_get8(Cmd, cmdp+1); | |
1038 | if (keyNbr < ICLASS_KEYS_MAX) { | |
1039 | memcpy(KEY, iClass_Key_Table[keyNbr], 8); | |
1040 | } else { | |
1041 | PrintAndLog("\nERROR: Credit KeyNbr is invalid\n"); | |
1042 | errors = true; | |
1043 | } | |
1044 | } else { | |
1045 | PrintAndLog("\nERROR: Credit Key is incorrect length\n"); | |
1046 | errors = true; | |
1047 | } | |
1048 | cmdp += 2; | |
1049 | break; | |
1050 | case 'l': | |
1051 | case 'L': | |
1052 | if (param_gethex(Cmd, cmdp+1, &endblock, 2)) { | |
1053 | PrintAndLog("Start Block No must include 2 HEX symbols\n"); | |
1054 | errors = true; | |
1055 | } | |
1056 | cmdp += 2; | |
1057 | break; | |
1058 | case 'r': | |
1059 | case 'R': | |
1060 | rawkey = true; | |
1061 | cmdp++; | |
1062 | break; | |
1063 | default: | |
1064 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
1065 | errors = true; | |
1066 | break; | |
1067 | } | |
1068 | if(errors) return usage_hf_iclass_clone(); | |
1069 | } | |
1070 | ||
1071 | if (cmdp < 8) return usage_hf_iclass_clone(); | |
1072 | ||
1073 | FILE *f; | |
1074 | ||
1075 | iclass_block_t tag_data[USB_CMD_DATA_SIZE/12]; | |
1076 | ||
1077 | if ((endblock-startblock+1)*12 > USB_CMD_DATA_SIZE) { | |
1078 | PrintAndLog("Trying to write too many blocks at once. Max: %d", USB_CMD_DATA_SIZE/8); | |
1079 | } | |
1080 | // file handling and reading | |
1081 | f = fopen(filename,"rb"); | |
1082 | if(!f) { | |
1083 | PrintAndLog("Failed to read from file '%s'", filename); | |
1084 | return 1; | |
1085 | } | |
1086 | ||
1087 | if (startblock<5) { | |
1088 | PrintAndLog("You cannot write key blocks this way. yet... make your start block > 4"); | |
1089 | fclose(f); | |
1090 | return 0; | |
1091 | } | |
1092 | // now read data from the file from block 6 --- 19 | |
1093 | // ok we will use this struct [data 8 bytes][MAC 4 bytes] for each block calculate all mac number for each data | |
1094 | // 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, | |
1095 | // else we have to create a share memory | |
1096 | int i; | |
1097 | fseek(f,startblock*8,SEEK_SET); | |
1098 | if ( fread(tag_data,sizeof(iclass_block_t),endblock - startblock + 1,f) == 0 ) { | |
1099 | PrintAndLog("File reading error."); | |
1100 | fclose(f); | |
1101 | return 2; | |
1102 | } | |
1103 | ||
1104 | uint8_t MAC[4]={0x00,0x00,0x00,0x00}; | |
1105 | uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1106 | ||
1107 | if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, true)) | |
1108 | return 0; | |
1109 | ||
1110 | UsbCommand w = {CMD_ICLASS_CLONE,{startblock,endblock}}; | |
1111 | uint8_t *ptr; | |
1112 | // calculate all mac for every the block we will write | |
1113 | for (i = startblock; i <= endblock; i++){ | |
1114 | Calc_wb_mac(i,tag_data[i - startblock].d,div_key,MAC); | |
1115 | // usb command d start pointer = d + (i - 6) * 12 | |
1116 | // memcpy(pointer,tag_data[i - 6],8) 8 bytes | |
1117 | // memcpy(pointer + 8,mac,sizoof(mac) 4 bytes; | |
1118 | // next one | |
1119 | ptr = w.d.asBytes + (i - startblock) * 12; | |
1120 | memcpy(ptr, &(tag_data[i - startblock].d[0]), 8); | |
1121 | memcpy(ptr + 8,MAC, 4); | |
1122 | } | |
1123 | uint8_t p[12]; | |
1124 | for (i = 0; i <= endblock - startblock;i++){ | |
1125 | memcpy(p,w.d.asBytes + (i * 12),12); | |
1126 | printf("Block |%02x|",i + startblock); | |
1127 | 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]); | |
1128 | printf(" MAC |%02x%02x%02x%02x|\n",p[8],p[9],p[10],p[11]); | |
1129 | } | |
1130 | UsbCommand resp; | |
1131 | SendCommand(&w); | |
1132 | if (!WaitForResponseTimeout(CMD_ACK,&resp,4500)) | |
1133 | { | |
1134 | PrintAndLog("Command execute timeout"); | |
1135 | return 0; | |
1136 | } | |
1137 | return 1; | |
1138 | } | |
1139 | ||
1140 | static int ReadBlock(uint8_t *KEY, uint8_t blockno, uint8_t keyType, bool elite, bool rawkey, bool verbose, bool auth) { | |
1141 | uint8_t MAC[4]={0x00,0x00,0x00,0x00}; | |
1142 | uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1143 | ||
1144 | if (auth) { | |
1145 | if (!select_and_auth(KEY, MAC, div_key, (keyType==0x18), elite, rawkey, verbose)) | |
1146 | return 0; | |
1147 | } else { | |
1148 | uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1149 | uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1150 | if (!select_only(CSN, CCNR, (keyType==0x18), verbose)) | |
1151 | return 0; | |
1152 | } | |
1153 | ||
1154 | UsbCommand resp; | |
1155 | UsbCommand w = {CMD_ICLASS_READBLOCK, {blockno}}; | |
1156 | clearCommandBuffer(); | |
1157 | SendCommand(&w); | |
1158 | if (!WaitForResponseTimeout(CMD_ACK,&resp,4500)) | |
1159 | { | |
1160 | PrintAndLog("Command execute timeout"); | |
1161 | return 0; | |
1162 | } | |
1163 | uint8_t isOK = resp.arg[0] & 0xff; | |
1164 | if (!isOK) { | |
1165 | PrintAndLog("Read Block Failed"); | |
1166 | return 0; | |
1167 | } | |
1168 | //data read is stored in: resp.d.asBytes[0-15] | |
1169 | if (verbose) PrintAndLog("Block %02X: %s\n",blockno, sprint_hex(resp.d.asBytes,8)); | |
1170 | return 1; | |
1171 | } | |
1172 | ||
1173 | int usage_hf_iclass_readblock(void) { | |
1174 | PrintAndLog("Usage: hf iclass readblk b <Block> k <Key> c e|r\n"); | |
1175 | PrintAndLog("Options:"); | |
1176 | PrintAndLog(" b <Block> : The block number as 2 hex symbols"); | |
1177 | PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory"); | |
1178 | PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n"); | |
1179 | PrintAndLog(" e : If 'e' is specified, elite computations applied to key"); | |
1180 | PrintAndLog(" r : If 'r' is specified, no computations applied to key"); | |
1181 | PrintAndLog("Samples:"); | |
1182 | PrintAndLog(" hf iclass readblk b 06 k 0011223344556677"); | |
1183 | PrintAndLog(" hf iclass readblk b 1B k 0011223344556677 c"); | |
1184 | PrintAndLog(" hf iclass readblk b 0A k 0"); | |
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | int CmdHFiClass_ReadBlock(const char *Cmd) { | |
1189 | uint8_t blockno=0; | |
1190 | uint8_t keyType = 0x88; //debit key | |
1191 | uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1192 | uint8_t keyNbr = 0; | |
1193 | uint8_t dataLen = 0; | |
1194 | char tempStr[50] = {0}; | |
1195 | bool elite = false; | |
1196 | bool rawkey = false; | |
1197 | bool errors = false; | |
1198 | bool auth = false; | |
1199 | uint8_t cmdp = 0; | |
1200 | while(param_getchar(Cmd, cmdp) != 0x00) | |
1201 | { | |
1202 | switch(param_getchar(Cmd, cmdp)) | |
1203 | { | |
1204 | case 'h': | |
1205 | case 'H': | |
1206 | return usage_hf_iclass_readblock(); | |
1207 | case 'b': | |
1208 | case 'B': | |
1209 | if (param_gethex(Cmd, cmdp+1, &blockno, 2)) { | |
1210 | PrintAndLog("Block No must include 2 HEX symbols\n"); | |
1211 | errors = true; | |
1212 | } | |
1213 | cmdp += 2; | |
1214 | break; | |
1215 | case 'c': | |
1216 | case 'C': | |
1217 | keyType = 0x18; | |
1218 | cmdp++; | |
1219 | break; | |
1220 | case 'e': | |
1221 | case 'E': | |
1222 | elite = true; | |
1223 | cmdp++; | |
1224 | break; | |
1225 | case 'k': | |
1226 | case 'K': | |
1227 | auth = true; | |
1228 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
1229 | if (dataLen == 16) { | |
1230 | errors = param_gethex(tempStr, 0, KEY, dataLen); | |
1231 | } else if (dataLen == 1) { | |
1232 | keyNbr = param_get8(Cmd, cmdp+1); | |
1233 | if (keyNbr < ICLASS_KEYS_MAX) { | |
1234 | memcpy(KEY, iClass_Key_Table[keyNbr], 8); | |
1235 | } else { | |
1236 | PrintAndLog("\nERROR: Credit KeyNbr is invalid\n"); | |
1237 | errors = true; | |
1238 | } | |
1239 | } else { | |
1240 | PrintAndLog("\nERROR: Credit Key is incorrect length\n"); | |
1241 | errors = true; | |
1242 | } | |
1243 | cmdp += 2; | |
1244 | break; | |
1245 | case 'r': | |
1246 | case 'R': | |
1247 | rawkey = true; | |
1248 | cmdp++; | |
1249 | break; | |
1250 | default: | |
1251 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
1252 | errors = true; | |
1253 | break; | |
1254 | } | |
1255 | if(errors) return usage_hf_iclass_readblock(); | |
1256 | } | |
1257 | ||
1258 | if (cmdp < 2) return usage_hf_iclass_readblock(); | |
1259 | if (!auth) | |
1260 | PrintAndLog("warning: no authentication used with read, only a few specific blocks can be read accurately without authentication."); | |
1261 | return ReadBlock(KEY, blockno, keyType, elite, rawkey, true, auth); | |
1262 | } | |
1263 | ||
1264 | int CmdHFiClass_loclass(const char *Cmd) { | |
1265 | char opt = param_getchar(Cmd, 0); | |
1266 | ||
1267 | if (strlen(Cmd)<1 || opt == 'h') { | |
1268 | PrintAndLog("Usage: hf iclass loclass [options]"); | |
1269 | PrintAndLog("Options:"); | |
1270 | PrintAndLog("h Show this help"); | |
1271 | PrintAndLog("t Perform self-test"); | |
1272 | PrintAndLog("f <filename> Bruteforce iclass dumpfile"); | |
1273 | PrintAndLog(" An iclass dumpfile is assumed to consist of an arbitrary number of"); | |
1274 | PrintAndLog(" malicious CSNs, and their protocol responses"); | |
1275 | PrintAndLog(" The binary format of the file is expected to be as follows: "); | |
1276 | PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>"); | |
1277 | PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>"); | |
1278 | PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>"); | |
1279 | PrintAndLog(" ... totalling N*24 bytes"); | |
1280 | return 0; | |
1281 | } | |
1282 | char fileName[255] = {0}; | |
1283 | if(opt == 'f') { | |
1284 | if(param_getstr(Cmd, 1, fileName, sizeof(fileName)) > 0) { | |
1285 | return bruteforceFileNoKeys(fileName); | |
1286 | } else { | |
1287 | PrintAndLog("You must specify a filename"); | |
1288 | } | |
1289 | } else if(opt == 't') { | |
1290 | int errors = testCipherUtils(); | |
1291 | errors += testMAC(); | |
1292 | errors += doKeyTests(0); | |
1293 | errors += testElite(); | |
1294 | if(errors) { | |
1295 | prnlog("OBS! There were errors!!!"); | |
1296 | } | |
1297 | return errors; | |
1298 | } | |
1299 | ||
1300 | return 0; | |
1301 | } | |
1302 | ||
1303 | void printIclassDumpContents(uint8_t *iclass_dump, uint8_t startblock, uint8_t endblock, size_t filesize) { | |
1304 | uint8_t mem_config; | |
1305 | memcpy(&mem_config, iclass_dump + 13,1); | |
1306 | uint8_t maxmemcount; | |
1307 | uint8_t filemaxblock = filesize / 8; | |
1308 | if (mem_config & 0x80) | |
1309 | maxmemcount = 255; | |
1310 | else | |
1311 | maxmemcount = 31; | |
1312 | //PrintAndLog ("endblock: %d, filesize: %d, maxmemcount: %d, filemaxblock: %d", endblock,filesize, maxmemcount, filemaxblock); | |
1313 | ||
1314 | if (startblock == 0) | |
1315 | startblock = 6; | |
1316 | if ((endblock > maxmemcount) || (endblock == 0)) | |
1317 | endblock = maxmemcount; | |
1318 | ||
1319 | // remember endblock need to relate to zero-index arrays. | |
1320 | if (endblock > filemaxblock-1) | |
1321 | endblock = filemaxblock; | |
1322 | ||
1323 | int i = startblock; | |
1324 | printf("------+--+-------------------------+\n"); | |
1325 | while (i <= endblock) { | |
1326 | uint8_t *blk = iclass_dump + (i * 8); | |
1327 | printf("Block |%02X| %s|\n", i, sprint_hex(blk, 8) ); | |
1328 | i++; | |
1329 | } | |
1330 | printf("------+--+-------------------------+\n"); | |
1331 | } | |
1332 | ||
1333 | int usage_hf_iclass_readtagfile() { | |
1334 | PrintAndLog("Usage: hf iclass readtagfile <filename> [startblock] [endblock]"); | |
1335 | return 1; | |
1336 | } | |
1337 | ||
1338 | int CmdHFiClassReadTagFile(const char *Cmd) { | |
1339 | int startblock = 0; | |
1340 | int endblock = 0; | |
1341 | char tempnum[5]; | |
1342 | FILE *f; | |
1343 | char filename[FILE_PATH_SIZE]; | |
1344 | if (param_getstr(Cmd, 0, filename, sizeof(filename)) < 1) | |
1345 | return usage_hf_iclass_readtagfile(); | |
1346 | if (param_getstr(Cmd, 1, tempnum, sizeof(tempnum)) < 1) | |
1347 | startblock = 0; | |
1348 | else | |
1349 | sscanf(tempnum,"%d",&startblock); | |
1350 | ||
1351 | if (param_getstr(Cmd,2, tempnum, sizeof(tempnum)) < 1) | |
1352 | endblock = 0; | |
1353 | else | |
1354 | sscanf(tempnum,"%d",&endblock); | |
1355 | // file handling and reading | |
1356 | f = fopen(filename,"rb"); | |
1357 | if(!f) { | |
1358 | PrintAndLog("Failed to read from file '%s'", filename); | |
1359 | return 1; | |
1360 | } | |
1361 | fseek(f, 0, SEEK_END); | |
1362 | long fsize = ftell(f); | |
1363 | fseek(f, 0, SEEK_SET); | |
1364 | ||
1365 | if ( fsize < 0 ) { | |
1366 | PrintAndLog("Error, when getting filesize"); | |
1367 | fclose(f); | |
1368 | return 1; | |
1369 | } | |
1370 | ||
1371 | uint8_t *dump = malloc(fsize); | |
1372 | ||
1373 | size_t bytes_read = fread(dump, 1, fsize, f); | |
1374 | fclose(f); | |
1375 | uint8_t *csn = dump; | |
1376 | printf("------+--+-------------------------+\n"); | |
1377 | printf("CSN |00| %s|\n", sprint_hex(csn, 8) ); | |
1378 | // printIclassDumpInfo(dump); | |
1379 | printIclassDumpContents(dump,startblock,endblock,bytes_read); | |
1380 | free(dump); | |
1381 | return 0; | |
1382 | } | |
1383 | ||
1384 | /* | |
1385 | uint64_t xorcheck(uint64_t sdiv,uint64_t hdiv) { | |
1386 | uint64_t new_div = 0x00; | |
1387 | new_div ^= sdiv; | |
1388 | new_div ^= hdiv; | |
1389 | return new_div; | |
1390 | } | |
1391 | ||
1392 | uint64_t hexarray_to_uint64(uint8_t *key) { | |
1393 | char temp[17]; | |
1394 | uint64_t uint_key; | |
1395 | for (int i = 0;i < 8;i++) | |
1396 | sprintf(&temp[(i *2)],"%02X",key[i]); | |
1397 | temp[16] = '\0'; | |
1398 | if (sscanf(temp,"%016" SCNx64,&uint_key) < 1) | |
1399 | return 0; | |
1400 | return uint_key; | |
1401 | } | |
1402 | */ | |
1403 | void HFiClassCalcDivKey(uint8_t *CSN, uint8_t *KEY, uint8_t *div_key, bool elite){ | |
1404 | uint8_t keytable[128] = {0}; | |
1405 | uint8_t key_index[8] = {0}; | |
1406 | if (elite) { | |
1407 | uint8_t key_sel[8] = { 0 }; | |
1408 | uint8_t key_sel_p[8] = { 0 }; | |
1409 | hash2(KEY, keytable); | |
1410 | hash1(CSN, key_index); | |
1411 | for(uint8_t i = 0; i < 8 ; i++) | |
1412 | key_sel[i] = keytable[key_index[i]] & 0xFF; | |
1413 | ||
1414 | //Permute from iclass format to standard format | |
1415 | permutekey_rev(key_sel, key_sel_p); | |
1416 | diversifyKey(CSN, key_sel_p, div_key); | |
1417 | } else { | |
1418 | diversifyKey(CSN, KEY, div_key); | |
1419 | } | |
1420 | } | |
1421 | ||
1422 | //when told CSN, oldkey, newkey, if new key is elite (elite), and if old key was elite (oldElite) | |
1423 | //calculate and return xor_div_key (ready for a key write command) | |
1424 | //print all div_keys if verbose | |
1425 | static void HFiClassCalcNewKey(uint8_t *CSN, uint8_t *OLDKEY, uint8_t *NEWKEY, uint8_t *xor_div_key, bool elite, bool oldElite, bool verbose){ | |
1426 | uint8_t old_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1427 | uint8_t new_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1428 | //get old div key | |
1429 | HFiClassCalcDivKey(CSN, OLDKEY, old_div_key, oldElite); | |
1430 | //get new div key | |
1431 | HFiClassCalcDivKey(CSN, NEWKEY, new_div_key, elite); | |
1432 | ||
1433 | for (uint8_t i = 0; i < sizeof(old_div_key); i++){ | |
1434 | xor_div_key[i] = old_div_key[i] ^ new_div_key[i]; | |
1435 | } | |
1436 | if (verbose) { | |
1437 | printf("Old Div Key : %s\n",sprint_hex(old_div_key,8)); | |
1438 | printf("New Div Key : %s\n",sprint_hex(new_div_key,8)); | |
1439 | printf("Xor Div Key : %s\n",sprint_hex(xor_div_key,8)); | |
1440 | } | |
1441 | } | |
1442 | ||
1443 | int usage_hf_iclass_calc_newkey(void) { | |
1444 | PrintAndLog("HELP : Manage iClass Keys in client memory:\n"); | |
1445 | PrintAndLog("Usage: hf iclass calc_newkey o <Old key> n <New key> s [csn] e"); | |
1446 | PrintAndLog(" Options:"); | |
1447 | PrintAndLog(" o <oldkey> : *specify a key as 16 hex symbols or a key number as 1 symbol"); | |
1448 | PrintAndLog(" n <newkey> : *specify a key as 16 hex symbols or a key number as 1 symbol"); | |
1449 | PrintAndLog(" s <csn> : specify a card Serial number to diversify the key (if omitted will attempt to read a csn)"); | |
1450 | PrintAndLog(" e : specify new key as elite calc"); | |
1451 | PrintAndLog(" ee : specify old and new key as elite calc"); | |
1452 | PrintAndLog("Samples:"); | |
1453 | PrintAndLog(" e key to e key given csn : hf iclass calcnewkey o 1122334455667788 n 2233445566778899 s deadbeafdeadbeaf ee"); | |
1454 | PrintAndLog(" std key to e key read csn: hf iclass calcnewkey o 1122334455667788 n 2233445566778899 e"); | |
1455 | PrintAndLog(" std to std read csn : hf iclass calcnewkey o 1122334455667788 n 2233445566778899"); | |
1456 | PrintAndLog("NOTE: * = required\n"); | |
1457 | ||
1458 | return 1; | |
1459 | } | |
1460 | ||
1461 | int CmdHFiClassCalcNewKey(const char *Cmd) { | |
1462 | uint8_t OLDKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1463 | uint8_t NEWKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1464 | uint8_t xor_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1465 | uint8_t CSN[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1466 | uint8_t CCNR[12] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1467 | uint8_t keyNbr = 0; | |
1468 | uint8_t dataLen = 0; | |
1469 | char tempStr[50] = {0}; | |
1470 | bool givenCSN = false; | |
1471 | bool oldElite = false; | |
1472 | bool elite = false; | |
1473 | bool errors = false; | |
1474 | uint8_t cmdp = 0; | |
1475 | while(param_getchar(Cmd, cmdp) != 0x00) | |
1476 | { | |
1477 | switch(param_getchar(Cmd, cmdp)) | |
1478 | { | |
1479 | case 'h': | |
1480 | case 'H': | |
1481 | return usage_hf_iclass_calc_newkey(); | |
1482 | case 'e': | |
1483 | case 'E': | |
1484 | dataLen = param_getstr(Cmd, cmdp, tempStr, sizeof(tempStr)); | |
1485 | if (dataLen==2) | |
1486 | oldElite = true; | |
1487 | elite = true; | |
1488 | cmdp++; | |
1489 | break; | |
1490 | case 'n': | |
1491 | case 'N': | |
1492 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
1493 | if (dataLen == 16) { | |
1494 | errors = param_gethex(tempStr, 0, NEWKEY, dataLen); | |
1495 | } else if (dataLen == 1) { | |
1496 | keyNbr = param_get8(Cmd, cmdp+1); | |
1497 | if (keyNbr < ICLASS_KEYS_MAX) { | |
1498 | memcpy(NEWKEY, iClass_Key_Table[keyNbr], 8); | |
1499 | } else { | |
1500 | PrintAndLog("\nERROR: NewKey Nbr is invalid\n"); | |
1501 | errors = true; | |
1502 | } | |
1503 | } else { | |
1504 | PrintAndLog("\nERROR: NewKey is incorrect length\n"); | |
1505 | errors = true; | |
1506 | } | |
1507 | cmdp += 2; | |
1508 | break; | |
1509 | case 'o': | |
1510 | case 'O': | |
1511 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
1512 | if (dataLen == 16) { | |
1513 | errors = param_gethex(tempStr, 0, OLDKEY, dataLen); | |
1514 | } else if (dataLen == 1) { | |
1515 | keyNbr = param_get8(Cmd, cmdp+1); | |
1516 | if (keyNbr < ICLASS_KEYS_MAX) { | |
1517 | memcpy(OLDKEY, iClass_Key_Table[keyNbr], 8); | |
1518 | } else { | |
1519 | PrintAndLog("\nERROR: Credit KeyNbr is invalid\n"); | |
1520 | errors = true; | |
1521 | } | |
1522 | } else { | |
1523 | PrintAndLog("\nERROR: Credit Key is incorrect length\n"); | |
1524 | errors = true; | |
1525 | } | |
1526 | cmdp += 2; | |
1527 | break; | |
1528 | case 's': | |
1529 | case 'S': | |
1530 | givenCSN = true; | |
1531 | if (param_gethex(Cmd, cmdp+1, CSN, 16)) | |
1532 | return usage_hf_iclass_calc_newkey(); | |
1533 | cmdp += 2; | |
1534 | break; | |
1535 | default: | |
1536 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
1537 | errors = true; | |
1538 | break; | |
1539 | } | |
1540 | if(errors) return usage_hf_iclass_calc_newkey(); | |
1541 | } | |
1542 | ||
1543 | if (cmdp < 4) return usage_hf_iclass_calc_newkey(); | |
1544 | ||
1545 | if (!givenCSN) | |
1546 | if (!select_only(CSN, CCNR, false, true)) | |
1547 | return 0; | |
1548 | ||
1549 | HFiClassCalcNewKey(CSN, OLDKEY, NEWKEY, xor_div_key, elite, oldElite, true); | |
1550 | return 0; | |
1551 | } | |
1552 | ||
1553 | static int loadKeys(char *filename) { | |
1554 | FILE *f; | |
1555 | f = fopen(filename,"rb"); | |
1556 | if(!f) { | |
1557 | PrintAndLog("Failed to read from file '%s'", filename); | |
1558 | return 0; | |
1559 | } | |
1560 | fseek(f, 0, SEEK_END); | |
1561 | long fsize = ftell(f); | |
1562 | fseek(f, 0, SEEK_SET); | |
1563 | ||
1564 | if ( fsize < 0 ) { | |
1565 | PrintAndLog("Error, when getting filesize"); | |
1566 | fclose(f); | |
1567 | return 1; | |
1568 | } | |
1569 | ||
1570 | uint8_t *dump = malloc(fsize); | |
1571 | ||
1572 | size_t bytes_read = fread(dump, 1, fsize, f); | |
1573 | fclose(f); | |
1574 | if (bytes_read > ICLASS_KEYS_MAX * 8){ | |
1575 | PrintAndLog("File is too long to load - bytes: %u", bytes_read); | |
1576 | free(dump); | |
1577 | return 0; | |
1578 | } | |
1579 | uint8_t i = 0; | |
1580 | for (; i < bytes_read/8; i++){ | |
1581 | memcpy(iClass_Key_Table[i],dump+(i*8),8); | |
1582 | } | |
1583 | free(dump); | |
1584 | PrintAndLog("%u keys loaded", i); | |
1585 | return 1; | |
1586 | } | |
1587 | ||
1588 | static int saveKeys(char *filename) { | |
1589 | FILE *f; | |
1590 | f = fopen(filename,"wb"); | |
1591 | if (f == NULL) { | |
1592 | printf("error opening file %s\n",filename); | |
1593 | return 0; | |
1594 | } | |
1595 | for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){ | |
1596 | if (fwrite(iClass_Key_Table[i],8,1,f) != 1){ | |
1597 | PrintAndLog("save key failed to write to file: %s", filename); | |
1598 | break; | |
1599 | } | |
1600 | } | |
1601 | fclose(f); | |
1602 | return 0; | |
1603 | } | |
1604 | ||
1605 | static int printKeys(void) { | |
1606 | PrintAndLog(""); | |
1607 | for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){ | |
1608 | PrintAndLog("%u: %s",i,sprint_hex(iClass_Key_Table[i],8)); | |
1609 | } | |
1610 | PrintAndLog(""); | |
1611 | return 0; | |
1612 | } | |
1613 | ||
1614 | int usage_hf_iclass_managekeys(void) { | |
1615 | PrintAndLog("HELP : Manage iClass Keys in client memory:\n"); | |
1616 | PrintAndLog("Usage: hf iclass managekeys n [keynbr] k [key] f [filename] s l p\n"); | |
1617 | PrintAndLog(" Options:"); | |
1618 | PrintAndLog(" n <keynbr> : specify the keyNbr to set in memory"); | |
1619 | PrintAndLog(" k <key> : set a key in memory"); | |
1620 | PrintAndLog(" f <filename>: specify a filename to use with load or save operations"); | |
1621 | PrintAndLog(" s : save keys in memory to file specified by filename"); | |
1622 | PrintAndLog(" l : load keys to memory from file specified by filename"); | |
1623 | PrintAndLog(" p : print keys loaded into memory\n"); | |
1624 | PrintAndLog("Samples:"); | |
1625 | PrintAndLog(" set key : hf iclass managekeys n 0 k 1122334455667788"); | |
1626 | PrintAndLog(" save key file: hf iclass managekeys f mykeys.bin s"); | |
1627 | PrintAndLog(" load key file: hf iclass managekeys f mykeys.bin l"); | |
1628 | PrintAndLog(" print keys : hf iclass managekeys p\n"); | |
1629 | return 0; | |
1630 | } | |
1631 | ||
1632 | int CmdHFiClassManageKeys(const char *Cmd) { | |
1633 | uint8_t keyNbr = 0; | |
1634 | uint8_t dataLen = 0; | |
1635 | uint8_t KEY[8] = {0}; | |
1636 | char filename[FILE_PATH_SIZE]; | |
1637 | uint8_t fileNameLen = 0; | |
1638 | bool errors = false; | |
1639 | uint8_t operation = 0; | |
1640 | char tempStr[20]; | |
1641 | uint8_t cmdp = 0; | |
1642 | ||
1643 | while(param_getchar(Cmd, cmdp) != 0x00) | |
1644 | { | |
1645 | switch(param_getchar(Cmd, cmdp)) | |
1646 | { | |
1647 | case 'h': | |
1648 | case 'H': | |
1649 | return usage_hf_iclass_managekeys(); | |
1650 | case 'f': | |
1651 | case 'F': | |
1652 | fileNameLen = param_getstr(Cmd, cmdp+1, filename, sizeof(filename)); | |
1653 | if (fileNameLen < 1) { | |
1654 | PrintAndLog("No filename found after f"); | |
1655 | errors = true; | |
1656 | } | |
1657 | cmdp += 2; | |
1658 | break; | |
1659 | case 'n': | |
1660 | case 'N': | |
1661 | keyNbr = param_get8(Cmd, cmdp+1); | |
1662 | if (keyNbr >= ICLASS_KEYS_MAX) { | |
1663 | PrintAndLog("Invalid block number"); | |
1664 | errors = true; | |
1665 | } | |
1666 | cmdp += 2; | |
1667 | break; | |
1668 | case 'k': | |
1669 | case 'K': | |
1670 | operation += 3; //set key | |
1671 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
1672 | if (dataLen == 16) { //ul-c or ev1/ntag key length | |
1673 | errors = param_gethex(tempStr, 0, KEY, dataLen); | |
1674 | } else { | |
1675 | PrintAndLog("\nERROR: Key is incorrect length\n"); | |
1676 | errors = true; | |
1677 | } | |
1678 | cmdp += 2; | |
1679 | break; | |
1680 | case 'p': | |
1681 | case 'P': | |
1682 | operation += 4; //print keys in memory | |
1683 | cmdp++; | |
1684 | break; | |
1685 | case 'l': | |
1686 | case 'L': | |
1687 | operation += 5; //load keys from file | |
1688 | cmdp++; | |
1689 | break; | |
1690 | case 's': | |
1691 | case 'S': | |
1692 | operation += 6; //save keys to file | |
1693 | cmdp++; | |
1694 | break; | |
1695 | default: | |
1696 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
1697 | errors = true; | |
1698 | break; | |
1699 | } | |
1700 | if(errors) return usage_hf_iclass_managekeys(); | |
1701 | } | |
1702 | if (operation == 0){ | |
1703 | PrintAndLog("no operation specified (load, save, or print)\n"); | |
1704 | return usage_hf_iclass_managekeys(); | |
1705 | } | |
1706 | if (operation > 6){ | |
1707 | PrintAndLog("Too many operations specified\n"); | |
1708 | return usage_hf_iclass_managekeys(); | |
1709 | } | |
1710 | if (operation > 4 && fileNameLen == 0){ | |
1711 | PrintAndLog("You must enter a filename when loading or saving\n"); | |
1712 | return usage_hf_iclass_managekeys(); | |
1713 | } | |
1714 | ||
1715 | switch (operation){ | |
1716 | case 3: memcpy(iClass_Key_Table[keyNbr], KEY, 8); return 1; | |
1717 | case 4: return printKeys(); | |
1718 | case 5: return loadKeys(filename); | |
1719 | case 6: return saveKeys(filename); | |
1720 | break; | |
1721 | } | |
1722 | return 0; | |
1723 | } | |
1724 | ||
1725 | int CmdHFiClassCheckKeys(const char *Cmd) { | |
1726 | ||
1727 | uint8_t mac[4] = {0x00,0x00,0x00,0x00}; | |
1728 | uint8_t key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1729 | uint8_t div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1730 | ||
1731 | // elite key, raw key, standard key | |
1732 | bool use_elite = false; | |
1733 | bool use_raw = false; | |
1734 | bool found_debit = false; | |
1735 | bool found_credit = false; | |
1736 | bool errors = false; | |
1737 | uint8_t cmdp = 0x00; | |
1738 | FILE * f; | |
1739 | char filename[FILE_PATH_SIZE] = {0}; | |
1740 | uint8_t fileNameLen = 0; | |
1741 | char buf[17]; | |
1742 | uint8_t *keyBlock = NULL, *p; | |
1743 | int keyitems = 0, keycnt = 0; | |
1744 | ||
1745 | while (param_getchar(Cmd, cmdp) != 0x00 && !errors) { | |
1746 | switch (param_getchar(Cmd, cmdp)) { | |
1747 | case 'h': | |
1748 | case 'H': | |
1749 | return usage_hf_iclass_chk(); | |
1750 | case 'f': | |
1751 | case 'F': | |
1752 | fileNameLen = param_getstr(Cmd, cmdp+1, filename, sizeof(filename)); | |
1753 | if (fileNameLen < 1) { | |
1754 | PrintAndLog("No filename found after f"); | |
1755 | errors = true; | |
1756 | } | |
1757 | cmdp += 2; | |
1758 | break; | |
1759 | case 'e': | |
1760 | case 'E': | |
1761 | use_elite = true; | |
1762 | cmdp++; | |
1763 | break; | |
1764 | case 'r': | |
1765 | case 'R': | |
1766 | use_raw = true; | |
1767 | cmdp++; | |
1768 | break; | |
1769 | default: | |
1770 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
1771 | errors = true; | |
1772 | break; | |
1773 | } | |
1774 | } | |
1775 | if (errors) return usage_hf_iclass_chk(); | |
1776 | ||
1777 | if ( !(f = fopen( filename , "r")) ) { | |
1778 | PrintAndLog("File: %s: not found or locked.", filename); | |
1779 | return 1; | |
1780 | } | |
1781 | ||
1782 | while( fgets(buf, sizeof(buf), f) ){ | |
1783 | if (strlen(buf) < 16 || buf[15] == '\n') | |
1784 | continue; | |
1785 | ||
1786 | while (fgetc(f) != '\n' && !feof(f)) ; //goto next line | |
1787 | ||
1788 | if( buf[0]=='#' ) continue; //The line start with # is comment, skip | |
1789 | ||
1790 | if (!isxdigit(buf[0])){ | |
1791 | PrintAndLog("File content error. '%s' must include 16 HEX symbols",buf); | |
1792 | continue; | |
1793 | } | |
1794 | ||
1795 | buf[16] = 0; | |
1796 | ||
1797 | p = realloc(keyBlock, 8 * (keyitems += 64)); | |
1798 | if (!p) { | |
1799 | PrintAndLog("Cannot allocate memory for default keys"); | |
1800 | free(keyBlock); | |
1801 | fclose(f); | |
1802 | return 2; | |
1803 | } | |
1804 | keyBlock = p; | |
1805 | ||
1806 | memset(keyBlock + 8 * keycnt, 0, 8); | |
1807 | num_to_bytes(strtoull(buf, NULL, 16), 8, keyBlock + 8 * keycnt); | |
1808 | ||
1809 | //PrintAndLog("check key[%2d] %016" PRIx64, keycnt, bytes_to_num(keyBlock + 8*keycnt, 8)); | |
1810 | keycnt++; | |
1811 | memset(buf, 0, sizeof(buf)); | |
1812 | } | |
1813 | fclose(f); | |
1814 | PrintAndLog("Loaded %2d keys from %s", keycnt, filename); | |
1815 | ||
1816 | // time | |
1817 | uint64_t t1 = msclock(); | |
1818 | ||
1819 | for (uint32_t c = 0; c < keycnt; c += 1) { | |
1820 | printf("."); fflush(stdout); | |
1821 | if (ukbhit()) { | |
1822 | int gc = getchar(); (void)gc; | |
1823 | printf("\naborted via keyboard!\n"); | |
1824 | break; | |
1825 | } | |
1826 | ||
1827 | memcpy(key, keyBlock + 8 * c , 8); | |
1828 | ||
1829 | // debit key. try twice | |
1830 | for (int foo = 0; foo < 2 && !found_debit; foo++) { | |
1831 | if (!select_and_auth(key, mac, div_key, false, use_elite, use_raw, false)) | |
1832 | continue; | |
1833 | ||
1834 | // key found. | |
1835 | PrintAndLog("\n--------------------------------------------------------"); | |
1836 | PrintAndLog(" Found AA1 debit key\t\t[%s]", sprint_hex(key, 8)); | |
1837 | found_debit = true; | |
1838 | } | |
1839 | ||
1840 | // credit key. try twice | |
1841 | for (int foo = 0; foo < 2 && !found_credit; foo++) { | |
1842 | if (!select_and_auth(key, mac, div_key, true, use_elite, use_raw, false)) | |
1843 | continue; | |
1844 | ||
1845 | // key found | |
1846 | PrintAndLog("\n--------------------------------------------------------"); | |
1847 | PrintAndLog(" Found AA2 credit key\t\t[%s]", sprint_hex(key, 8)); | |
1848 | found_credit = true; | |
1849 | } | |
1850 | ||
1851 | // both keys found. | |
1852 | if ( found_debit && found_credit ) | |
1853 | break; | |
1854 | } | |
1855 | ||
1856 | t1 = msclock() - t1; | |
1857 | ||
1858 | PrintAndLog("\nTime in iclass checkkeys: %.0f seconds\n", (float)t1/1000.0); | |
1859 | ||
1860 | DropField(); | |
1861 | free(keyBlock); | |
1862 | PrintAndLog(""); | |
1863 | return 0; | |
1864 | } | |
1865 | ||
1866 | static command_t CommandTable[] = | |
1867 | { | |
1868 | {"help", CmdHelp, 1, "This help"}, | |
1869 | {"calcnewkey", CmdHFiClassCalcNewKey, 1, "[options..] Calc Diversified keys (blocks 3 & 4) to write new keys"}, | |
1870 | {"chk", CmdHFiClassCheckKeys, 0, " Check keys"}, | |
1871 | {"clone", CmdHFiClassCloneTag, 0, "[options..] Authenticate and Clone from iClass bin file"}, | |
1872 | {"decrypt", CmdHFiClassDecrypt, 1, "[f <fname>] Decrypt tagdump" }, | |
1873 | {"dump", CmdHFiClassReader_Dump, 0, "[options..] Authenticate and Dump iClass tag's AA1"}, | |
1874 | {"eload", CmdHFiClassELoad, 0, "[f <fname>] (experimental) Load data into iClass emulator memory"}, | |
1875 | {"encryptblk", CmdHFiClassEncryptBlk, 1, "<BlockData> Encrypt given block data"}, | |
1876 | {"list", CmdHFiClassList, 0, " (Deprecated) List iClass history"}, | |
1877 | {"loclass", CmdHFiClass_loclass, 1, "[options..] Use loclass to perform bruteforce of reader attack dump"}, | |
1878 | {"managekeys", CmdHFiClassManageKeys, 1, "[options..] Manage the keys to use with iClass"}, | |
1879 | {"readblk", CmdHFiClass_ReadBlock, 0, "[options..] Authenticate and Read iClass block"}, | |
1880 | {"reader", CmdHFiClassReader, 0, " Look for iClass tags until a key or the pm3 button is pressed"}, | |
1881 | {"readtagfile", CmdHFiClassReadTagFile, 1, "[options..] Display Content from tagfile"}, | |
1882 | {"replay", CmdHFiClassReader_Replay, 0, "<mac> Read an iClass tag via Reply Attack"}, | |
1883 | {"sim", CmdHFiClassSim, 0, "[options..] Simulate iClass tag"}, | |
1884 | {"snoop", CmdHFiClassSnoop, 0, " Eavesdrop iClass communication"}, | |
1885 | {"writeblk", CmdHFiClass_WriteBlock, 0, "[options..] Authenticate and Write iClass block"}, | |
1886 | {NULL, NULL, 0, NULL} | |
1887 | }; | |
1888 | ||
1889 | int CmdHFiClass(const char *Cmd) | |
1890 | { | |
1891 | clearCommandBuffer(); | |
1892 | CmdsParse(CommandTable, Cmd); | |
1893 | return 0; | |
1894 | } | |
1895 | ||
1896 | int CmdHelp(const char *Cmd) | |
1897 | { | |
1898 | CmdsHelp(CommandTable); | |
1899 | return 0; | |
1900 | } |