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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 | // Copyright (C) 2019 piwi | |
6 | // | |
7 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
8 | // at your option, any later version. See the LICENSE.txt file for the text of | |
9 | // the license. | |
10 | //----------------------------------------------------------------------------- | |
11 | // High frequency iClass commands | |
12 | //----------------------------------------------------------------------------- | |
13 | ||
14 | #include <stdio.h> | |
15 | #include <stdlib.h> | |
16 | #include <string.h> | |
17 | #include <sys/stat.h> | |
18 | #include <ctype.h> | |
19 | #include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type | |
20 | #include "comms.h" | |
21 | #include "ui.h" | |
22 | #include "cliparser/cliparser.h" | |
23 | #include "cmdparser.h" | |
24 | #include "cmdhficlass.h" | |
25 | #include "common.h" | |
26 | #include "util.h" | |
27 | #include "cmdmain.h" | |
28 | #include "mbedtls/des.h" | |
29 | #include "loclass/cipherutils.h" | |
30 | #include "loclass/cipher.h" | |
31 | #include "loclass/ikeys.h" | |
32 | #include "loclass/elite_crack.h" | |
33 | #include "loclass/fileutils.h" | |
34 | #include "protocols.h" | |
35 | #include "usb_cmd.h" | |
36 | #include "cmdhfmfu.h" | |
37 | #include "util_posix.h" | |
38 | #include "cmdhf14a.h" // DropField() | |
39 | ||
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 | ||
54 | // iclass / picopass chip config structures and shared routines | |
55 | typedef struct { | |
56 | uint8_t app_limit; //[8] | |
57 | uint8_t otp[2]; //[9-10] | |
58 | uint8_t block_writelock;//[11] | |
59 | uint8_t chip_config; //[12] | |
60 | uint8_t mem_config; //[13] | |
61 | uint8_t eas; //[14] | |
62 | uint8_t fuses; //[15] | |
63 | } picopass_conf_block; | |
64 | ||
65 | typedef struct { | |
66 | uint8_t csn[8]; | |
67 | picopass_conf_block conf; | |
68 | uint8_t epurse[8]; | |
69 | uint8_t key_d[8]; | |
70 | uint8_t key_c[8]; | |
71 | uint8_t app_issuer_area[8]; | |
72 | } picopass_hdr; | |
73 | ||
74 | ||
75 | static void fuse_config(const picopass_hdr *hdr) { | |
76 | uint8_t fuses = hdr->conf.fuses; | |
77 | ||
78 | if (fuses & FUSE_FPERS) | |
79 | PrintAndLog(" Mode: Personalization [Programmable]"); | |
80 | else | |
81 | PrintAndLog(" Mode: Application [Locked]"); | |
82 | ||
83 | if (fuses & FUSE_CODING1) | |
84 | PrintAndLog("Coding: RFU"); | |
85 | else { | |
86 | if (fuses & FUSE_CODING0) | |
87 | PrintAndLog("Coding: ISO 14443-2 B/ISO 15693"); | |
88 | else | |
89 | PrintAndLog("Coding: ISO 14443B only"); | |
90 | } | |
91 | if ((fuses & FUSE_CRYPT1) && (fuses & FUSE_CRYPT0)) PrintAndLog(" Crypt: Secured page, keys not locked"); | |
92 | if ((fuses & FUSE_CRYPT1) && !(fuses & FUSE_CRYPT0)) PrintAndLog(" Crypt: Secured page, keys locked"); | |
93 | if (!(fuses & FUSE_CRYPT1) && (fuses & FUSE_CRYPT0)) PrintAndLog(" Crypt: Non secured page"); | |
94 | if (!(fuses & FUSE_CRYPT1) && !(fuses & FUSE_CRYPT0)) PrintAndLog(" Crypt: No auth possible. Read only if RA is enabled"); | |
95 | ||
96 | if (fuses & FUSE_RA) | |
97 | PrintAndLog(" RA: Read access enabled"); | |
98 | else | |
99 | PrintAndLog(" RA: Read access not enabled"); | |
100 | } | |
101 | ||
102 | ||
103 | static void getMemConfig(uint8_t mem_cfg, uint8_t chip_cfg, uint8_t *max_blk, uint8_t *app_areas, uint8_t *kb) { | |
104 | // mem-bit 5, mem-bit 7, chip-bit 4: defines chip type | |
105 | if((chip_cfg & 0x10) && !(mem_cfg & 0x80) && !(mem_cfg & 0x20)) { | |
106 | *kb = 2; | |
107 | *app_areas = 2; | |
108 | *max_blk = 31; | |
109 | } else if((chip_cfg & 0x10) && (mem_cfg & 0x80) && !(mem_cfg & 0x20)) { | |
110 | *kb = 16; | |
111 | *app_areas = 2; | |
112 | *max_blk = 255; //16kb | |
113 | } else if(!(chip_cfg & 0x10) && !(mem_cfg & 0x80) && !(mem_cfg & 0x20)) { | |
114 | *kb = 16; | |
115 | *app_areas = 16; | |
116 | *max_blk = 255; //16kb | |
117 | } else if((chip_cfg & 0x10) && (mem_cfg & 0x80) && (mem_cfg & 0x20)) { | |
118 | *kb = 32; | |
119 | *app_areas = 3; | |
120 | *max_blk = 255; //16kb | |
121 | } else if(!(chip_cfg & 0x10) && !(mem_cfg & 0x80) && (mem_cfg & 0x20)) { | |
122 | *kb = 32; | |
123 | *app_areas = 17; | |
124 | *max_blk = 255; //16kb | |
125 | } else { | |
126 | *kb = 32; | |
127 | *app_areas = 2; | |
128 | *max_blk = 255; | |
129 | } | |
130 | } | |
131 | ||
132 | ||
133 | static void mem_app_config(const picopass_hdr *hdr) { | |
134 | uint8_t mem = hdr->conf.mem_config; | |
135 | uint8_t chip = hdr->conf.chip_config; | |
136 | uint8_t applimit = hdr->conf.app_limit; | |
137 | if (applimit < 6) applimit = 26; | |
138 | uint8_t kb = 2; | |
139 | uint8_t app_areas = 2; | |
140 | uint8_t max_blk = 31; | |
141 | getMemConfig(mem, chip, &max_blk, &app_areas, &kb); | |
142 | PrintAndLog(" Mem: %u KBits/%u App Areas (%u * 8 bytes) [%02X]", kb, app_areas, max_blk+1, mem); | |
143 | PrintAndLog(" AA1: blocks 06-%02X", applimit); | |
144 | PrintAndLog(" AA2: blocks %02X-%02X", applimit+1, max_blk); | |
145 | } | |
146 | ||
147 | ||
148 | static void printIclassDumpInfo(uint8_t* iclass_dump) { | |
149 | fuse_config((picopass_hdr*)iclass_dump); | |
150 | mem_app_config((picopass_hdr*)iclass_dump); | |
151 | } | |
152 | ||
153 | ||
154 | static void usage_hf_iclass_chk(void) { | |
155 | PrintAndLog("Checkkeys loads a dictionary text file with 8byte hex keys to test authenticating against a iClass tag"); | |
156 | PrintAndLog("Usage: hf iclass chk [h|e|r] <f (*.dic)>"); | |
157 | PrintAndLog("Options:"); | |
158 | PrintAndLog("h Show this help"); | |
159 | PrintAndLog("f <filename> Dictionary file with default iclass keys"); | |
160 | PrintAndLog(" e target Elite / High security key scheme"); | |
161 | PrintAndLog(" r interpret dictionary file as raw (diversified keys)"); | |
162 | PrintAndLog("Samples:"); | |
163 | PrintAndLog(" hf iclass chk f default_iclass_keys.dic"); | |
164 | PrintAndLog(" hf iclass chk f default_iclass_keys.dic e"); | |
165 | } | |
166 | ||
167 | ||
168 | static int CmdHFiClassList(const char *Cmd) { | |
169 | PrintAndLog("Deprecated command, use 'hf list iclass' instead"); | |
170 | return 0; | |
171 | } | |
172 | ||
173 | ||
174 | static int CmdHFiClassSnoop(const char *Cmd) { | |
175 | ||
176 | CLIParserInit("hf iclass snoop", "\nSnoop a communication between an iClass Reader and an iClass Tag.", NULL); | |
177 | void* argtable[] = { | |
178 | arg_param_begin, | |
179 | arg_lit0("j", "jam", "Jam (prevent) e-purse Updates"), | |
180 | arg_param_end | |
181 | }; | |
182 | if (CLIParserParseString(Cmd, argtable, arg_getsize(argtable), true)){ | |
183 | CLIParserFree(); | |
184 | return 0; | |
185 | } | |
186 | ||
187 | bool jam_epurse_update = arg_get_lit(1); | |
188 | ||
189 | const uint8_t update_epurse_sequence[2] = {0x87, 0x02}; | |
190 | ||
191 | UsbCommand c = {CMD_SNOOP_ICLASS, {0}}; | |
192 | if (jam_epurse_update) { | |
193 | c.arg[0] = sizeof(update_epurse_sequence); | |
194 | memcpy(c.d.asBytes, update_epurse_sequence, sizeof(update_epurse_sequence)); | |
195 | } | |
196 | SendCommand(&c); | |
197 | ||
198 | return 0; | |
199 | } | |
200 | ||
201 | ||
202 | static void usage_hf_iclass_sim(void) { | |
203 | PrintAndLog("Usage: hf iclass sim <option> [CSN]"); | |
204 | PrintAndLog(" options"); | |
205 | PrintAndLog(" 0 <CSN> simulate the given CSN"); | |
206 | PrintAndLog(" 1 simulate default CSN"); | |
207 | PrintAndLog(" 2 Reader-attack, gather reader responses to extract elite key"); | |
208 | PrintAndLog(" 3 Full simulation using emulator memory (see 'hf iclass eload')"); | |
209 | PrintAndLog(" example: hf iclass sim 0 031FEC8AF7FF12E0"); | |
210 | PrintAndLog(" example: hf iclass sim 2"); | |
211 | PrintAndLog(" example: hf iclass eload 'tagdump.bin'"); | |
212 | PrintAndLog(" hf iclass sim 3"); | |
213 | } | |
214 | ||
215 | ||
216 | // the original malicious IDs from Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult, | |
217 | // and Milosch Meriac. Dismantling iClass and iClass Elite. | |
218 | #define NUM_CSNS 15 | |
219 | static uint8_t csns[8 * NUM_CSNS] = { | |
220 | 0x00, 0x0B, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0, | |
221 | 0x00, 0x04, 0x0E, 0x08, 0xF7, 0xFF, 0x12, 0xE0, | |
222 | 0x00, 0x09, 0x0D, 0x05, 0xF7, 0xFF, 0x12, 0xE0, | |
223 | 0x00, 0x0A, 0x0C, 0x06, 0xF7, 0xFF, 0x12, 0xE0, | |
224 | 0x00, 0x0F, 0x0B, 0x03, 0xF7, 0xFF, 0x12, 0xE0, | |
225 | 0x00, 0x08, 0x0A, 0x0C, 0xF7, 0xFF, 0x12, 0xE0, | |
226 | 0x00, 0x0D, 0x09, 0x09, 0xF7, 0xFF, 0x12, 0xE0, | |
227 | 0x00, 0x0E, 0x08, 0x0A, 0xF7, 0xFF, 0x12, 0xE0, | |
228 | 0x00, 0x03, 0x07, 0x17, 0xF7, 0xFF, 0x12, 0xE0, | |
229 | 0x00, 0x3C, 0x06, 0xE0, 0xF7, 0xFF, 0x12, 0xE0, | |
230 | 0x00, 0x01, 0x05, 0x1D, 0xF7, 0xFF, 0x12, 0xE0, | |
231 | 0x00, 0x02, 0x04, 0x1E, 0xF7, 0xFF, 0x12, 0xE0, | |
232 | 0x00, 0x07, 0x03, 0x1B, 0xF7, 0xFF, 0x12, 0xE0, | |
233 | 0x00, 0x00, 0x02, 0x24, 0xF7, 0xFF, 0x12, 0xE0, | |
234 | 0x00, 0x05, 0x01, 0x21, 0xF7, 0xFF, 0x12, 0xE0 }; | |
235 | ||
236 | ||
237 | // pre-defined 9 CSNs by iceman. | |
238 | // only one csn depend on several others. | |
239 | // six depends only on the first csn, (0,1, 0x45) | |
240 | ||
241 | // #define NUM_CSNS 9 | |
242 | // static uint8_t csns[8 * NUM_CSNS] = { | |
243 | // 0x01, 0x0A, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0, | |
244 | // 0x0C, 0x06, 0x0C, 0xFE, 0xF7, 0xFF, 0x12, 0xE0, | |
245 | // 0x10, 0x97, 0x83, 0x7B, 0xF7, 0xFF, 0x12, 0xE0, | |
246 | // 0x13, 0x97, 0x82, 0x7A, 0xF7, 0xFF, 0x12, 0xE0, | |
247 | // 0x07, 0x0E, 0x0D, 0xF9, 0xF7, 0xFF, 0x12, 0xE0, | |
248 | // 0x14, 0x96, 0x84, 0x76, 0xF7, 0xFF, 0x12, 0xE0, | |
249 | // 0x17, 0x96, 0x85, 0x71, 0xF7, 0xFF, 0x12, 0xE0, | |
250 | // 0xCE, 0xC5, 0x0F, 0x77, 0xF7, 0xFF, 0x12, 0xE0, | |
251 | // 0xD2, 0x5A, 0x82, 0xF8, 0xF7, 0xFF, 0x12, 0xE0 | |
252 | // //0x04, 0x08, 0x9F, 0x78, 0x6E, 0xFF, 0x12, 0xE0 | |
253 | // }; | |
254 | ||
255 | ||
256 | static int CmdHFiClassSim(const char *Cmd) { | |
257 | uint8_t simType = 0; | |
258 | uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0}; | |
259 | ||
260 | if (strlen(Cmd) < 1) { | |
261 | usage_hf_iclass_sim(); | |
262 | return 0; | |
263 | } | |
264 | simType = param_get8ex(Cmd, 0, 0, 10); | |
265 | ||
266 | if (simType == ICLASS_SIM_MODE_CSN) { | |
267 | if (param_gethex(Cmd, 1, CSN, 16)) { | |
268 | PrintAndLog("A CSN should consist of 16 HEX symbols"); | |
269 | usage_hf_iclass_sim(); | |
270 | return 0; | |
271 | } | |
272 | PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8)); | |
273 | } | |
274 | ||
275 | if (simType == ICLASS_SIM_MODE_READER_ATTACK) { | |
276 | UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType, NUM_CSNS}}; | |
277 | UsbCommand resp = {0}; | |
278 | ||
279 | memcpy(c.d.asBytes, csns, 8 * NUM_CSNS); | |
280 | ||
281 | SendCommand(&c); | |
282 | if (!WaitForResponseTimeout(CMD_ACK, &resp, -1)) { | |
283 | PrintAndLog("Command timed out"); | |
284 | return 0; | |
285 | } | |
286 | ||
287 | uint8_t num_mac_responses = resp.arg[1]; | |
288 | PrintAndLog("Mac responses: %d MACs obtained (should be %d)", num_mac_responses, NUM_CSNS); | |
289 | ||
290 | size_t datalen = NUM_CSNS * 24; | |
291 | /* | |
292 | * Now, time to dump to file. We'll use this format: | |
293 | * <8-byte CSN><8-byte CC><4 byte NR><4 byte MAC>.... | |
294 | * So, it should wind up as | |
295 | * 8 * 24 bytes. | |
296 | * | |
297 | * The returndata from the pm3 is on the following format | |
298 | * <8 byte CC><4 byte NR><4 byte MAC> | |
299 | * CSN is the same as was sent in | |
300 | **/ | |
301 | void* dump = malloc(datalen); | |
302 | for(int i = 0; i < NUM_CSNS; i++) { | |
303 | memcpy(dump + i*24, csns+i*8, 8); //CSN | |
304 | //copy CC from response | |
305 | memcpy(dump + i*24 + 8, resp.d.asBytes + i*16, 8); | |
306 | //Then comes NR_MAC (eight bytes from the response) | |
307 | memcpy(dump + i*24 + 16, resp.d.asBytes + i*16 + 8, 8); | |
308 | } | |
309 | /** Now, save to dumpfile **/ | |
310 | saveFile("iclass_mac_attack", "bin", dump,datalen); | |
311 | free(dump); | |
312 | ||
313 | } else if (simType == ICLASS_SIM_MODE_CSN || simType == ICLASS_SIM_MODE_CSN_DEFAULT || simType == ICLASS_SIM_MODE_FULL) { | |
314 | UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType, 0}}; | |
315 | memcpy(c.d.asBytes, CSN, 8); | |
316 | SendCommand(&c); | |
317 | ||
318 | } else { | |
319 | PrintAndLog("Undefined simtype %d", simType); | |
320 | usage_hf_iclass_sim(); | |
321 | return 0; | |
322 | } | |
323 | ||
324 | return 0; | |
325 | } | |
326 | ||
327 | ||
328 | int HFiClassReader(bool loop, bool verbose) { | |
329 | ||
330 | bool tagFound = false; | |
331 | UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_INIT | FLAG_ICLASS_READER_CLEARTRACE | FLAG_ICLASS_READER_CSN | FLAG_ICLASS_READER_CONF | FLAG_ICLASS_READER_CC | FLAG_ICLASS_READER_AA} }; | |
332 | UsbCommand resp; | |
333 | ||
334 | while (!ukbhit()) { | |
335 | SendCommand(&c); | |
336 | if (WaitForResponseTimeout(CMD_ACK,&resp, 4500)) { | |
337 | uint8_t readStatus = resp.arg[0] & 0xff; | |
338 | uint8_t *data = resp.d.asBytes; | |
339 | ||
340 | // no tag found | |
341 | if (readStatus == 0 && !loop) { | |
342 | // abort | |
343 | if (verbose) PrintAndLog("Quitting..."); | |
344 | DropField(); | |
345 | return 0; | |
346 | } | |
347 | ||
348 | if (readStatus & FLAG_ICLASS_READER_CSN) { | |
349 | PrintAndLog(" CSN: %s",sprint_hex(data,8)); | |
350 | tagFound = true; | |
351 | } | |
352 | if (readStatus & FLAG_ICLASS_READER_CC) { | |
353 | PrintAndLog(" CC: %s",sprint_hex(data+16,8)); | |
354 | } | |
355 | if (readStatus & FLAG_ICLASS_READER_CONF) { | |
356 | printIclassDumpInfo(data); | |
357 | } | |
358 | if (readStatus & FLAG_ICLASS_READER_AA) { | |
359 | bool legacy = true; | |
360 | PrintAndLog(" AppIA: %s",sprint_hex(data+8*5,8)); | |
361 | for (int i = 0; i<8; i++) { | |
362 | if (data[8*5+i] != 0xFF) { | |
363 | legacy = false; | |
364 | } | |
365 | } | |
366 | PrintAndLog(" : Possible iClass %s",(legacy) ? "(legacy tag)" : "(NOT legacy tag)"); | |
367 | } | |
368 | ||
369 | if (tagFound && !loop) return 1; | |
370 | } else { | |
371 | if (verbose) PrintAndLog("Command execute timeout"); | |
372 | } | |
373 | if (!loop) break; | |
374 | } | |
375 | ||
376 | DropField(); | |
377 | return 0; | |
378 | } | |
379 | ||
380 | ||
381 | static void usage_hf_iclass_reader(void) { | |
382 | PrintAndLogEx(NORMAL, "Act as a Iclass reader. Look for iClass tags until Enter or the pm3 button is pressed\n"); | |
383 | PrintAndLogEx(NORMAL, "Usage: hf iclass reader [h] [1]\n"); | |
384 | PrintAndLogEx(NORMAL, "Options:"); | |
385 | PrintAndLogEx(NORMAL, " h This help text"); | |
386 | PrintAndLogEx(NORMAL, " 1 read only 1 tag"); | |
387 | PrintAndLogEx(NORMAL, "Examples:"); | |
388 | PrintAndLogEx(NORMAL, " hf iclass reader 1"); | |
389 | } | |
390 | ||
391 | ||
392 | static int CmdHFiClassReader(const char *Cmd) { | |
393 | char cmdp = tolower(param_getchar(Cmd, 0)); | |
394 | if (cmdp == 'h') { | |
395 | usage_hf_iclass_reader(); | |
396 | return 0; | |
397 | } | |
398 | bool findone = (cmdp == '1') ? false : true; | |
399 | return HFiClassReader(findone, true); | |
400 | } | |
401 | ||
402 | ||
403 | static void usage_hf_iclass_eload(void) { | |
404 | PrintAndLog("Loads iclass tag-dump into emulator memory on device"); | |
405 | PrintAndLog("Usage: hf iclass eload f <filename>"); | |
406 | PrintAndLog(""); | |
407 | PrintAndLog("Example: hf iclass eload f iclass_tagdump-aa162d30f8ff12f1.bin"); | |
408 | } | |
409 | ||
410 | ||
411 | static int CmdHFiClassELoad(const char *Cmd) { | |
412 | ||
413 | char opt = param_getchar(Cmd, 0); | |
414 | if (strlen(Cmd)<1 || opt == 'h') { | |
415 | usage_hf_iclass_eload(); | |
416 | return 0; | |
417 | } | |
418 | ||
419 | //File handling and reading | |
420 | FILE *f; | |
421 | char filename[FILE_PATH_SIZE]; | |
422 | if (opt == 'f' && param_getstr(Cmd, 1, filename, sizeof(filename)) > 0) { | |
423 | f = fopen(filename, "rb"); | |
424 | } else { | |
425 | usage_hf_iclass_eload(); | |
426 | return 0; | |
427 | } | |
428 | ||
429 | if (!f) { | |
430 | PrintAndLog("Failed to read from file '%s'", filename); | |
431 | return 1; | |
432 | } | |
433 | ||
434 | fseek(f, 0, SEEK_END); | |
435 | long fsize = ftell(f); | |
436 | fseek(f, 0, SEEK_SET); | |
437 | ||
438 | if (fsize < 0) { | |
439 | PrintAndLog("Error, when getting filesize"); | |
440 | fclose(f); | |
441 | return 1; | |
442 | } | |
443 | ||
444 | uint8_t *dump = malloc(fsize); | |
445 | ||
446 | size_t bytes_read = fread(dump, 1, fsize, f); | |
447 | fclose(f); | |
448 | ||
449 | printIclassDumpInfo(dump); | |
450 | //Validate | |
451 | ||
452 | if (bytes_read < fsize) { | |
453 | prnlog("Error, could only read %d bytes (should be %d)",bytes_read, fsize ); | |
454 | free(dump); | |
455 | return 1; | |
456 | } | |
457 | //Send to device | |
458 | uint32_t bytes_sent = 0; | |
459 | uint32_t bytes_remaining = bytes_read; | |
460 | ||
461 | while (bytes_remaining > 0) { | |
462 | uint32_t bytes_in_packet = MIN(USB_CMD_DATA_SIZE, bytes_remaining); | |
463 | UsbCommand c = {CMD_ICLASS_EML_MEMSET, {bytes_sent,bytes_in_packet,0}}; | |
464 | memcpy(c.d.asBytes, dump+bytes_sent, bytes_in_packet); | |
465 | SendCommand(&c); | |
466 | bytes_remaining -= bytes_in_packet; | |
467 | bytes_sent += bytes_in_packet; | |
468 | } | |
469 | free(dump); | |
470 | PrintAndLog("Sent %d bytes of data to device emulator memory", bytes_sent); | |
471 | return 0; | |
472 | } | |
473 | ||
474 | ||
475 | static int readKeyfile(const char *filename, size_t len, uint8_t* buffer) { | |
476 | FILE *f = fopen(filename, "rb"); | |
477 | if(!f) { | |
478 | PrintAndLog("Failed to read from file '%s'", filename); | |
479 | return 1; | |
480 | } | |
481 | fseek(f, 0, SEEK_END); | |
482 | long fsize = ftell(f); | |
483 | fseek(f, 0, SEEK_SET); | |
484 | size_t bytes_read = fread(buffer, 1, len, f); | |
485 | fclose(f); | |
486 | if(fsize != len) | |
487 | { | |
488 | PrintAndLog("Warning, file size is %d, expected %d", fsize, len); | |
489 | return 1; | |
490 | } | |
491 | if(bytes_read != len) | |
492 | { | |
493 | PrintAndLog("Warning, could only read %d bytes, expected %d" ,bytes_read, len); | |
494 | return 1; | |
495 | } | |
496 | return 0; | |
497 | } | |
498 | ||
499 | ||
500 | static void usage_hf_iclass_decrypt(void) { | |
501 | PrintAndLog("Usage: hf iclass decrypt f <tagdump>"); | |
502 | PrintAndLog(""); | |
503 | PrintAndLog("OBS! In order to use this function, the file 'iclass_decryptionkey.bin' must reside"); | |
504 | PrintAndLog("in the working directory. The file should be 16 bytes binary data"); | |
505 | PrintAndLog(""); | |
506 | PrintAndLog("example: hf iclass decrypt f tagdump_12312342343.bin"); | |
507 | PrintAndLog(""); | |
508 | PrintAndLog("OBS! This is pretty stupid implementation, it tries to decrypt every block after block 6. "); | |
509 | PrintAndLog("Correct behaviour would be to decrypt only the application areas where the key is valid,"); | |
510 | PrintAndLog("which is defined by the configuration block."); | |
511 | } | |
512 | ||
513 | ||
514 | static int CmdHFiClassDecrypt(const char *Cmd) { | |
515 | uint8_t key[16] = { 0 }; | |
516 | if(readKeyfile("iclass_decryptionkey.bin", 16, key)) | |
517 | { | |
518 | usage_hf_iclass_decrypt(); | |
519 | return 1; | |
520 | } | |
521 | PrintAndLog("Decryption file found... "); | |
522 | char opt = param_getchar(Cmd, 0); | |
523 | if (strlen(Cmd)<1 || opt == 'h') { | |
524 | usage_hf_iclass_decrypt(); | |
525 | return 0; | |
526 | } | |
527 | ||
528 | //Open the tagdump-file | |
529 | FILE *f; | |
530 | char filename[FILE_PATH_SIZE]; | |
531 | if(opt == 'f' && param_getstr(Cmd, 1, filename, sizeof(filename)) > 0) { | |
532 | f = fopen(filename, "rb"); | |
533 | if ( f == NULL ) { | |
534 | PrintAndLog("Could not find file %s", filename); | |
535 | return 1; | |
536 | } | |
537 | } else { | |
538 | usage_hf_iclass_decrypt(); | |
539 | return 0; | |
540 | } | |
541 | ||
542 | fseek(f, 0, SEEK_END); | |
543 | long fsize = ftell(f); | |
544 | fseek(f, 0, SEEK_SET); | |
545 | uint8_t enc_dump[8] = {0}; | |
546 | uint8_t *decrypted = malloc(fsize); | |
547 | mbedtls_des3_context ctx = { {0} }; | |
548 | mbedtls_des3_set2key_dec( &ctx, key); | |
549 | size_t bytes_read = fread(enc_dump, 1, 8, f); | |
550 | ||
551 | //Use the first block (CSN) for filename | |
552 | char outfilename[FILE_PATH_SIZE] = { 0 }; | |
553 | snprintf(outfilename,FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x-decrypted", | |
554 | enc_dump[0],enc_dump[1],enc_dump[2],enc_dump[3], | |
555 | enc_dump[4],enc_dump[5],enc_dump[6],enc_dump[7]); | |
556 | ||
557 | size_t blocknum =0; | |
558 | while(bytes_read == 8) | |
559 | { | |
560 | if(blocknum < 7) | |
561 | { | |
562 | memcpy(decrypted+(blocknum*8), enc_dump, 8); | |
563 | }else{ | |
564 | mbedtls_des3_crypt_ecb(&ctx, enc_dump,decrypted +(blocknum*8) ); | |
565 | } | |
566 | printvar("decrypted block", decrypted +(blocknum*8), 8); | |
567 | bytes_read = fread(enc_dump, 1, 8, f); | |
568 | blocknum++; | |
569 | } | |
570 | fclose(f); | |
571 | ||
572 | saveFile(outfilename,"bin", decrypted, blocknum*8); | |
573 | free(decrypted); | |
574 | return 0; | |
575 | } | |
576 | ||
577 | ||
578 | static void usage_hf_iclass_encrypt(void) { | |
579 | PrintAndLog("Usage: hf iclass encrypt <BlockData>"); | |
580 | PrintAndLog(""); | |
581 | PrintAndLog("OBS! In order to use this function, the file 'iclass_decryptionkey.bin' must reside"); | |
582 | PrintAndLog("in the working directory. The file should be 16 bytes binary data"); | |
583 | PrintAndLog(""); | |
584 | PrintAndLog("example: hf iclass encrypt 0102030405060708"); | |
585 | PrintAndLog(""); | |
586 | } | |
587 | ||
588 | ||
589 | static int iClassEncryptBlkData(uint8_t *blkData) { | |
590 | uint8_t key[16] = { 0 }; | |
591 | if(readKeyfile("iclass_decryptionkey.bin", 16, key)) | |
592 | { | |
593 | usage_hf_iclass_encrypt(); | |
594 | return 1; | |
595 | } | |
596 | PrintAndLog("Decryption file found... "); | |
597 | ||
598 | uint8_t encryptedData[16]; | |
599 | uint8_t *encrypted = encryptedData; | |
600 | mbedtls_des3_context ctx = { {0} }; | |
601 | mbedtls_des3_set2key_enc( &ctx, key); | |
602 | ||
603 | mbedtls_des3_crypt_ecb(&ctx, blkData,encrypted); | |
604 | //printvar("decrypted block", decrypted, 8); | |
605 | memcpy(blkData,encrypted,8); | |
606 | ||
607 | return 1; | |
608 | } | |
609 | ||
610 | ||
611 | static int CmdHFiClassEncryptBlk(const char *Cmd) { | |
612 | uint8_t blkData[8] = {0}; | |
613 | char opt = param_getchar(Cmd, 0); | |
614 | if (strlen(Cmd)<1 || opt == 'h') { | |
615 | usage_hf_iclass_encrypt(); | |
616 | return 0; | |
617 | } | |
618 | //get the bytes to encrypt | |
619 | if (param_gethex(Cmd, 0, blkData, 16)) { | |
620 | PrintAndLog("BlockData must include 16 HEX symbols"); | |
621 | return 0; | |
622 | } | |
623 | if (!iClassEncryptBlkData(blkData)) return 0; | |
624 | printvar("encrypted block", blkData, 8); | |
625 | return 1; | |
626 | } | |
627 | ||
628 | ||
629 | static void Calc_wb_mac(uint8_t blockno, uint8_t *data, uint8_t *div_key, uint8_t MAC[4]) { | |
630 | uint8_t WB[9]; | |
631 | WB[0] = blockno; | |
632 | memcpy(WB+1, data, 8); | |
633 | doMAC_N(WB, sizeof(WB), div_key, MAC); | |
634 | //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]); | |
635 | } | |
636 | ||
637 | ||
638 | static bool iClass_select(uint8_t *CSN, bool verbose, bool cleartrace, bool init) { | |
639 | ||
640 | UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_CSN}}; | |
641 | if (init) c.arg[0] |= FLAG_ICLASS_READER_INIT; | |
642 | if (cleartrace) c.arg[0] |= FLAG_ICLASS_READER_CLEARTRACE; | |
643 | ||
644 | UsbCommand resp; | |
645 | clearCommandBuffer(); | |
646 | SendCommand(&c); | |
647 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) { | |
648 | PrintAndLog("Command execute timeout"); | |
649 | return false; | |
650 | } | |
651 | ||
652 | uint8_t isOK = resp.arg[0] & 0xff; | |
653 | uint8_t *data = resp.d.asBytes; | |
654 | ||
655 | if (isOK & FLAG_ICLASS_READER_CSN) { | |
656 | memcpy(CSN, data, 8); | |
657 | if (verbose) PrintAndLog("CSN: %s", sprint_hex(CSN, 8)); | |
658 | } else { | |
659 | PrintAndLog("Failed to select card! Aborting"); | |
660 | return false; | |
661 | } | |
662 | return true; | |
663 | } | |
664 | ||
665 | ||
666 | static void HFiClassCalcDivKey(uint8_t *CSN, uint8_t *KEY, uint8_t *div_key, bool elite){ | |
667 | uint8_t keytable[128] = {0}; | |
668 | uint8_t key_index[8] = {0}; | |
669 | if (elite) { | |
670 | uint8_t key_sel[8] = { 0 }; | |
671 | uint8_t key_sel_p[8] = { 0 }; | |
672 | hash2(KEY, keytable); | |
673 | hash1(CSN, key_index); | |
674 | for(uint8_t i = 0; i < 8 ; i++) | |
675 | key_sel[i] = keytable[key_index[i]] & 0xFF; | |
676 | ||
677 | //Permute from iclass format to standard format | |
678 | permutekey_rev(key_sel, key_sel_p); | |
679 | diversifyKey(CSN, key_sel_p, div_key); | |
680 | } else { | |
681 | diversifyKey(CSN, KEY, div_key); | |
682 | } | |
683 | } | |
684 | ||
685 | ||
686 | static bool iClass_authenticate(uint8_t *CSN, uint8_t *KEY, uint8_t *MAC, uint8_t *div_key, bool use_credit_key, bool elite, bool rawkey, bool replay, bool verbose) { | |
687 | ||
688 | //get div_key | |
689 | if (rawkey || replay) | |
690 | memcpy(div_key, KEY, 8); | |
691 | else | |
692 | HFiClassCalcDivKey(CSN, KEY, div_key, elite); | |
693 | ||
694 | char keytypetext[23] = "legacy diversified key"; | |
695 | if (rawkey) { | |
696 | strcpy(keytypetext, "raw key"); | |
697 | } else if (replay) { | |
698 | strcpy(keytypetext, "replayed NR/MAC"); | |
699 | } else if (elite) { | |
700 | strcpy(keytypetext, "Elite diversified key"); | |
701 | } | |
702 | ||
703 | if (verbose) PrintAndLog("Authenticating with %s: %s", keytypetext, sprint_hex(div_key, 8)); | |
704 | ||
705 | UsbCommand resp; | |
706 | UsbCommand d = {CMD_ICLASS_READCHECK, {2, use_credit_key, 0}}; | |
707 | ||
708 | clearCommandBuffer(); | |
709 | SendCommand(&d); | |
710 | ||
711 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) { | |
712 | if (verbose) PrintAndLog("Auth Command (READCHECK[2]) execute timeout"); | |
713 | return false; | |
714 | } | |
715 | bool isOK = resp.arg[0]; | |
716 | if (!isOK) { | |
717 | if (verbose) PrintAndLog("Couldn't get Card Challenge"); | |
718 | return false; | |
719 | } | |
720 | ||
721 | if (replay) { | |
722 | memcpy(MAC, KEY+4, 4); | |
723 | } else { | |
724 | uint8_t CCNR[12]; | |
725 | memcpy(CCNR, resp.d.asBytes, 8); | |
726 | memset(CCNR+8, 0x00, 4); // default NR = {0, 0, 0, 0} | |
727 | doMAC(CCNR, div_key, MAC); | |
728 | } | |
729 | ||
730 | d.cmd = CMD_ICLASS_CHECK; | |
731 | if (replay) { | |
732 | memcpy(d.d.asBytes, KEY, 8); | |
733 | } else { | |
734 | memset(d.d.asBytes, 0x00, 4); // default NR = {0, 0, 0, 0} | |
735 | memcpy(d.d.asBytes+4, MAC, 4); | |
736 | } | |
737 | clearCommandBuffer(); | |
738 | SendCommand(&d); | |
739 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) { | |
740 | if (verbose) PrintAndLog("Auth Command (CHECK) execute timeout"); | |
741 | return false; | |
742 | } | |
743 | isOK = resp.arg[0]; | |
744 | if (!isOK) { | |
745 | if (verbose) PrintAndLog("Authentication error"); | |
746 | return false; | |
747 | } | |
748 | return true; | |
749 | } | |
750 | ||
751 | ||
752 | static void usage_hf_iclass_dump(void) { | |
753 | PrintAndLog("Usage: hf iclass dump f <fileName> k <Key> c <CreditKey> e|r|n\n"); | |
754 | PrintAndLog("Options:"); | |
755 | PrintAndLog(" f <filename> : specify a filename to save dump to"); | |
756 | PrintAndLog(" k <Key> : *Debit Key (AA1) as 16 hex symbols (8 bytes) or 1 hex to select key from memory"); | |
757 | PrintAndLog(" c <CreditKey>: Credit Key (AA2) as 16 hex symbols (8 bytes) or 1 hex to select key from memory"); | |
758 | PrintAndLog(" e : If 'e' is specified, the keys are interpreted as Elite"); | |
759 | PrintAndLog(" Custom Keys (KCus), which can be obtained via reader-attack"); | |
760 | PrintAndLog(" See 'hf iclass sim 2'. This key should be on iclass-format"); | |
761 | PrintAndLog(" r : If 'r' is specified, keys are interpreted as raw blocks 3/4"); | |
762 | PrintAndLog(" n : If 'n' is specified, keys are interpreted as NR/MAC pairs which can be obtained by 'hf iclass snoop'"); | |
763 | PrintAndLog(" NOTE: * = required"); | |
764 | PrintAndLog("Samples:"); | |
765 | PrintAndLog(" hf iclass dump k 001122334455667B"); | |
766 | PrintAndLog(" hf iclass dump k AAAAAAAAAAAAAAAA c 001122334455667B"); | |
767 | PrintAndLog(" hf iclass dump k AAAAAAAAAAAAAAAA e"); | |
768 | } | |
769 | ||
770 | ||
771 | static void printIclassDumpContents(uint8_t *iclass_dump, uint8_t startblock, uint8_t endblock, size_t filesize) { | |
772 | uint8_t mem_config; | |
773 | memcpy(&mem_config, iclass_dump + 13,1); | |
774 | uint8_t maxmemcount; | |
775 | uint8_t filemaxblock = filesize / 8; | |
776 | if (mem_config & 0x80) | |
777 | maxmemcount = 255; | |
778 | else | |
779 | maxmemcount = 31; | |
780 | //PrintAndLog ("endblock: %d, filesize: %d, maxmemcount: %d, filemaxblock: %d", endblock,filesize, maxmemcount, filemaxblock); | |
781 | ||
782 | if (startblock == 0) | |
783 | startblock = 6; | |
784 | if ((endblock > maxmemcount) || (endblock == 0)) | |
785 | endblock = maxmemcount; | |
786 | ||
787 | // remember endblock need to relate to zero-index arrays. | |
788 | if (endblock > filemaxblock-1) | |
789 | endblock = filemaxblock; | |
790 | ||
791 | int i = startblock; | |
792 | printf("------+--+-------------------------+\n"); | |
793 | while (i <= endblock) { | |
794 | uint8_t *blk = iclass_dump + (i * 8); | |
795 | printf("Block |%02X| %s|\n", i, sprint_hex(blk, 8) ); | |
796 | i++; | |
797 | } | |
798 | printf("------+--+-------------------------+\n"); | |
799 | } | |
800 | ||
801 | ||
802 | static int CmdHFiClassReader_Dump(const char *Cmd) { | |
803 | ||
804 | uint8_t MAC[4] = {0x00,0x00,0x00,0x00}; | |
805 | uint8_t div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
806 | uint8_t c_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
807 | uint8_t blockno = 0; | |
808 | uint8_t AA1_maxBlk = 0; | |
809 | uint8_t maxBlk = 31; | |
810 | uint8_t app_areas = 1; | |
811 | uint8_t kb = 2; | |
812 | uint8_t KEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
813 | uint8_t CreditKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
814 | uint8_t keyNbr = 0; | |
815 | uint8_t dataLen = 0; | |
816 | uint8_t fileNameLen = 0; | |
817 | char filename[FILE_PATH_SIZE]={0}; | |
818 | char tempStr[50] = {0}; | |
819 | bool have_debit_key = false; | |
820 | bool have_credit_key = false; | |
821 | bool use_credit_key = false; | |
822 | bool elite = false; | |
823 | bool rawkey = false; | |
824 | bool NRMAC_replay = false; | |
825 | bool errors = false; | |
826 | bool verbose = false; | |
827 | uint8_t cmdp = 0; | |
828 | ||
829 | while (param_getchar(Cmd, cmdp) != 0x00 && !errors) { | |
830 | switch(param_getchar(Cmd, cmdp)) { | |
831 | case 'h': | |
832 | case 'H': | |
833 | usage_hf_iclass_dump(); | |
834 | return 0; | |
835 | case 'c': | |
836 | case 'C': | |
837 | have_credit_key = true; | |
838 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
839 | if (dataLen == 16) { | |
840 | errors = param_gethex(tempStr, 0, CreditKEY, dataLen); | |
841 | } else if (dataLen == 1) { | |
842 | keyNbr = param_get8(Cmd, cmdp+1); | |
843 | if (keyNbr < ICLASS_KEYS_MAX) { | |
844 | memcpy(CreditKEY, iClass_Key_Table[keyNbr], 8); | |
845 | } else { | |
846 | PrintAndLog("\nERROR: Credit KeyNbr is invalid\n"); | |
847 | errors = true; | |
848 | } | |
849 | } else { | |
850 | PrintAndLog("\nERROR: Credit Key is incorrect length\n"); | |
851 | errors = true; | |
852 | } | |
853 | cmdp += 2; | |
854 | break; | |
855 | case 'e': | |
856 | case 'E': | |
857 | elite = true; | |
858 | cmdp++; | |
859 | break; | |
860 | case 'f': | |
861 | case 'F': | |
862 | fileNameLen = param_getstr(Cmd, cmdp+1, filename, sizeof(filename)); | |
863 | if (fileNameLen < 1) { | |
864 | PrintAndLog("No filename found after f"); | |
865 | errors = true; | |
866 | } | |
867 | cmdp += 2; | |
868 | break; | |
869 | case 'k': | |
870 | case 'K': | |
871 | have_debit_key = true; | |
872 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
873 | if (dataLen == 16) { | |
874 | errors = param_gethex(tempStr, 0, KEY, dataLen); | |
875 | } else if (dataLen == 1) { | |
876 | keyNbr = param_get8(Cmd, cmdp+1); | |
877 | if (keyNbr < ICLASS_KEYS_MAX) { | |
878 | memcpy(KEY, iClass_Key_Table[keyNbr], 8); | |
879 | } else { | |
880 | PrintAndLog("\nERROR: Debit KeyNbr is invalid\n"); | |
881 | errors = true; | |
882 | } | |
883 | } else { | |
884 | PrintAndLog("\nERROR: Debit Key is incorrect length\n"); | |
885 | errors = true; | |
886 | } | |
887 | cmdp += 2; | |
888 | break; | |
889 | case 'r': | |
890 | case 'R': | |
891 | rawkey = true; | |
892 | cmdp++; | |
893 | break; | |
894 | case 'n': | |
895 | case 'N': | |
896 | NRMAC_replay = true; | |
897 | cmdp++; | |
898 | break; | |
899 | case 'v': | |
900 | case 'V': | |
901 | verbose = true; | |
902 | cmdp++; | |
903 | break; | |
904 | default: | |
905 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
906 | errors = true; | |
907 | break; | |
908 | } | |
909 | } | |
910 | ||
911 | if (elite + rawkey + NRMAC_replay > 1) { | |
912 | PrintAndLog("You cannot combine the 'e', 'r', and 'n' options\n"); | |
913 | errors = true; | |
914 | } | |
915 | ||
916 | if (errors || cmdp < 2) { | |
917 | usage_hf_iclass_dump(); | |
918 | return 0; | |
919 | } | |
920 | ||
921 | // if only credit key is given: try for AA1 as well (not for iclass but for some picopass this will work) | |
922 | if (!have_debit_key && have_credit_key) { | |
923 | memcpy(KEY, CreditKEY, 8); | |
924 | } | |
925 | ||
926 | // clear trace and get first 3 blocks | |
927 | UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_INIT | FLAG_ICLASS_READER_CLEARTRACE | FLAG_ICLASS_READER_CSN | FLAG_ICLASS_READER_CONF | FLAG_ICLASS_READER_CC}}; | |
928 | UsbCommand resp; | |
929 | uint8_t tag_data[256*8]; | |
930 | ||
931 | clearCommandBuffer(); | |
932 | SendCommand(&c); | |
933 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) { | |
934 | PrintAndLog("Command execute timeout"); | |
935 | DropField(); | |
936 | return 0; | |
937 | } | |
938 | ||
939 | uint8_t readStatus = resp.arg[0] & 0xff; | |
940 | uint8_t *data = resp.d.asBytes; | |
941 | uint8_t status_mask = FLAG_ICLASS_READER_CSN | FLAG_ICLASS_READER_CONF | FLAG_ICLASS_READER_CC; | |
942 | ||
943 | if (readStatus != status_mask) { | |
944 | PrintAndLog("No tag found ..."); | |
945 | return 0; | |
946 | } else { | |
947 | memcpy(tag_data, data, 8*3); | |
948 | if (verbose) PrintAndLog("CSN: %s", sprint_hex(tag_data, 8)); | |
949 | AA1_maxBlk = data[8]; | |
950 | getMemConfig(data[13], data[12], &maxBlk, &app_areas, &kb); | |
951 | // large memory - not able to dump pages currently | |
952 | if (AA1_maxBlk > maxBlk) AA1_maxBlk = maxBlk; | |
953 | } | |
954 | ||
955 | // authenticate with debit key (or credit key if we have no debit key) and get div_key - later store in dump block 3 | |
956 | if (!iClass_authenticate(tag_data, KEY, MAC, div_key, false, elite, rawkey, NRMAC_replay, verbose)) { | |
957 | DropField(); | |
958 | return 0; | |
959 | } | |
960 | ||
961 | // read AA1 | |
962 | UsbCommand w = {CMD_ICLASS_DUMP}; | |
963 | uint32_t blocksRead = 0; | |
964 | for (blockno = 3; blockno <= AA1_maxBlk; blockno += blocksRead) { | |
965 | w.arg[0] = blockno; | |
966 | w.arg[1] = AA1_maxBlk - blockno + 1; | |
967 | clearCommandBuffer(); | |
968 | SendCommand(&w); | |
969 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) { | |
970 | PrintAndLog("Command execute time-out 1"); | |
971 | DropField(); | |
972 | return 1; | |
973 | } | |
974 | blocksRead = resp.arg[1]; | |
975 | bool isOK = resp.arg[0]; | |
976 | if (!isOK) { | |
977 | PrintAndLog("Reading AA1 block failed"); | |
978 | DropField(); | |
979 | return 0; | |
980 | } | |
981 | memcpy(tag_data + blockno*8, resp.d.asBytes, blocksRead*8); | |
982 | } | |
983 | ||
984 | // do we still need to read more blocks (AA2 enabled)? | |
985 | if (have_credit_key && maxBlk > AA1_maxBlk) { | |
986 | if (!use_credit_key) { | |
987 | //turn off hf field before authenticating with different key | |
988 | DropField(); | |
989 | // AA2 authenticate credit key and git c_div_key - later store in dump block 4 | |
990 | uint8_t CSN[8]; | |
991 | if (!iClass_select(CSN, verbose, false, true) || !iClass_authenticate(CSN, CreditKEY, MAC, c_div_key, true, false, false, NRMAC_replay, verbose)){ | |
992 | DropField(); | |
993 | return 0; | |
994 | } | |
995 | } | |
996 | for ( ; blockno <= maxBlk; blockno += blocksRead) { | |
997 | w.arg[0] = blockno; | |
998 | w.arg[1] = maxBlk - blockno + 1; | |
999 | clearCommandBuffer(); | |
1000 | SendCommand(&w); | |
1001 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) { | |
1002 | PrintAndLog("Command execute time-out 1"); | |
1003 | DropField(); | |
1004 | return 1; | |
1005 | } | |
1006 | blocksRead = resp.arg[1]; | |
1007 | bool isOK = resp.arg[0]; | |
1008 | if (!isOK) { | |
1009 | PrintAndLog("Reading AA2 block failed"); | |
1010 | DropField(); | |
1011 | return 0; | |
1012 | } | |
1013 | memcpy(tag_data + blockno*8, resp.d.asBytes, blocksRead*8); | |
1014 | } | |
1015 | } | |
1016 | ||
1017 | DropField(); | |
1018 | ||
1019 | // add diversified keys to dump | |
1020 | if (have_debit_key) { | |
1021 | memcpy(tag_data + 3*8, div_key, 8); | |
1022 | } else { | |
1023 | memset(tag_data + 3*8, 0xff, 8); | |
1024 | } | |
1025 | if (have_credit_key) { | |
1026 | memcpy(tag_data + 4*8, c_div_key, 8); | |
1027 | } else { | |
1028 | memset(tag_data + 4*8, 0xff, 8); | |
1029 | } | |
1030 | ||
1031 | // print the dump | |
1032 | printf("------+--+-------------------------+\n"); | |
1033 | printf("CSN |00| %s|\n",sprint_hex(tag_data, 8)); | |
1034 | printIclassDumpContents(tag_data, 1, blockno-1, blockno*8); | |
1035 | ||
1036 | if (filename[0] == 0) { | |
1037 | snprintf(filename, FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x", | |
1038 | tag_data[0],tag_data[1],tag_data[2],tag_data[3], | |
1039 | tag_data[4],tag_data[5],tag_data[6],tag_data[7]); | |
1040 | } | |
1041 | ||
1042 | // save the dump to .bin file | |
1043 | PrintAndLog("Saving dump file - %d blocks read", blockno); | |
1044 | saveFile(filename, "bin", tag_data, blockno*8); | |
1045 | return 1; | |
1046 | } | |
1047 | ||
1048 | ||
1049 | static int WriteBlock(uint8_t blockno, uint8_t *bldata, uint8_t *KEY, bool use_credit_key, bool elite, bool rawkey, bool NRMAC_replay, bool verbose) { | |
1050 | ||
1051 | uint8_t MAC[4] = {0x00,0x00,0x00,0x00}; | |
1052 | uint8_t div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1053 | uint8_t CSN[8]; | |
1054 | ||
1055 | if (!iClass_select(CSN, verbose, true, true) || !iClass_authenticate(CSN, KEY, MAC, div_key, use_credit_key, elite, rawkey, NRMAC_replay, verbose)) { | |
1056 | DropField(); | |
1057 | return 0; | |
1058 | } | |
1059 | ||
1060 | UsbCommand resp; | |
1061 | ||
1062 | Calc_wb_mac(blockno, bldata, div_key, MAC); | |
1063 | ||
1064 | UsbCommand w = {CMD_ICLASS_WRITEBLOCK, {blockno}}; | |
1065 | memcpy(w.d.asBytes, bldata, 8); | |
1066 | memcpy(w.d.asBytes + 8, MAC, 4); | |
1067 | ||
1068 | clearCommandBuffer(); | |
1069 | SendCommand(&w); | |
1070 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) { | |
1071 | PrintAndLog("Write Command execute timeout"); | |
1072 | DropField(); | |
1073 | return 0; | |
1074 | } | |
1075 | bool isOK = resp.arg[0]; | |
1076 | if (!isOK) { | |
1077 | PrintAndLog("Write Block Failed"); | |
1078 | DropField(); | |
1079 | return 0; | |
1080 | } | |
1081 | ||
1082 | PrintAndLog("Write Block Successful"); | |
1083 | return 1; | |
1084 | } | |
1085 | ||
1086 | ||
1087 | static void usage_hf_iclass_writeblock(void) { | |
1088 | PrintAndLog("Options:"); | |
1089 | PrintAndLog(" b <Block> : The block number as 2 hex symbols"); | |
1090 | PrintAndLog(" d <data> : Set the Data to write as 16 hex symbols"); | |
1091 | PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory"); | |
1092 | PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n"); | |
1093 | PrintAndLog(" e : If 'e' is specified, elite computations applied to key"); | |
1094 | PrintAndLog(" r : If 'r' is specified, no computations applied to key"); | |
1095 | PrintAndLog(" o : override protection and allow modification of blocks 0...4"); | |
1096 | PrintAndLog("Samples:"); | |
1097 | PrintAndLog(" hf iclass writeblk b 0A d AAAAAAAAAAAAAAAA k 001122334455667B"); | |
1098 | PrintAndLog(" hf iclass writeblk b 1B d AAAAAAAAAAAAAAAA k 001122334455667B c"); | |
1099 | PrintAndLog(" hf iclass writeblk b 03 d AAAAAAAAAAAAAAAA k 001122334455667B c o"); | |
1100 | } | |
1101 | ||
1102 | ||
1103 | static int CmdHFiClass_WriteBlock(const char *Cmd) { | |
1104 | uint8_t blockno = 0; | |
1105 | uint8_t bldata[8] = {0}; | |
1106 | uint8_t KEY[8] = {0}; | |
1107 | uint8_t keyNbr = 0; | |
1108 | uint8_t dataLen = 0; | |
1109 | char tempStr[50] = {0}; | |
1110 | bool use_credit_key = false; | |
1111 | bool elite = false; | |
1112 | bool rawkey = false; | |
1113 | bool override_protection = false; | |
1114 | bool errors = false; | |
1115 | uint8_t cmdp = 0; | |
1116 | ||
1117 | while (param_getchar(Cmd, cmdp) != 0x00 && !errors) { | |
1118 | switch(param_getchar(Cmd, cmdp)) { | |
1119 | case 'h': | |
1120 | case 'H': | |
1121 | usage_hf_iclass_writeblock(); | |
1122 | return 0; | |
1123 | case 'b': | |
1124 | case 'B': | |
1125 | if (param_gethex(Cmd, cmdp+1, &blockno, 2)) { | |
1126 | PrintAndLog("Block No must include 2 HEX symbols\n"); | |
1127 | errors = true; | |
1128 | } | |
1129 | cmdp += 2; | |
1130 | break; | |
1131 | case 'c': | |
1132 | case 'C': | |
1133 | use_credit_key = true; | |
1134 | cmdp++; | |
1135 | break; | |
1136 | case 'd': | |
1137 | case 'D': | |
1138 | if (param_gethex(Cmd, cmdp+1, bldata, 16)) { | |
1139 | PrintAndLog("Data must include 16 HEX symbols\n"); | |
1140 | errors = true; | |
1141 | } | |
1142 | cmdp += 2; | |
1143 | break; | |
1144 | case 'e': | |
1145 | case 'E': | |
1146 | elite = true; | |
1147 | cmdp++; | |
1148 | break; | |
1149 | case 'k': | |
1150 | case 'K': | |
1151 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
1152 | if (dataLen == 16) { | |
1153 | errors = param_gethex(tempStr, 0, KEY, dataLen); | |
1154 | } else if (dataLen == 1) { | |
1155 | keyNbr = param_get8(Cmd, cmdp+1); | |
1156 | if (keyNbr < ICLASS_KEYS_MAX) { | |
1157 | memcpy(KEY, iClass_Key_Table[keyNbr], 8); | |
1158 | } else { | |
1159 | PrintAndLog("\nERROR: Credit KeyNbr is invalid\n"); | |
1160 | errors = true; | |
1161 | } | |
1162 | } else { | |
1163 | PrintAndLog("\nERROR: Credit Key is incorrect length\n"); | |
1164 | errors = true; | |
1165 | } | |
1166 | cmdp += 2; | |
1167 | break; | |
1168 | case 'r': | |
1169 | case 'R': | |
1170 | rawkey = true; | |
1171 | cmdp++; | |
1172 | break; | |
1173 | case 'o': | |
1174 | case 'O': | |
1175 | override_protection = true; | |
1176 | cmdp++; | |
1177 | break; | |
1178 | default: | |
1179 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
1180 | errors = true; | |
1181 | break; | |
1182 | } | |
1183 | if (errors) { | |
1184 | usage_hf_iclass_writeblock(); | |
1185 | return 0; | |
1186 | } | |
1187 | } | |
1188 | ||
1189 | if (elite && rawkey) { | |
1190 | PrintAndLog("You cannot combine the 'e' and 'r' options\n"); | |
1191 | errors = true; | |
1192 | } | |
1193 | ||
1194 | if (cmdp < 6) { | |
1195 | usage_hf_iclass_writeblock(); | |
1196 | return 0; | |
1197 | } | |
1198 | ||
1199 | if (blockno < 5) { | |
1200 | if (override_protection) { | |
1201 | PrintAndLog("Info: modifying keys, e-purse or configuration block."); | |
1202 | } else { | |
1203 | PrintAndLog("You are going to modify keys, e-purse or configuration block."); | |
1204 | PrintAndLog("You must add the 'o' (override) option to confirm that you know what you are doing"); | |
1205 | return 0; | |
1206 | } | |
1207 | } | |
1208 | ||
1209 | int ans = WriteBlock(blockno, bldata, KEY, use_credit_key, elite, rawkey, false, true); | |
1210 | ||
1211 | DropField(); | |
1212 | return ans; | |
1213 | } | |
1214 | ||
1215 | ||
1216 | static void usage_hf_iclass_clone(void) { | |
1217 | PrintAndLog("Usage: hf iclass clone f <tagfile.bin> b <first block> l <last block> k <KEY> c e|r o"); | |
1218 | PrintAndLog("Options:"); | |
1219 | PrintAndLog(" f <filename>: specify a filename to clone from"); | |
1220 | PrintAndLog(" b <Block> : The first block to clone as 2 hex symbols"); | |
1221 | PrintAndLog(" l <Last Blk>: The last block to clone as 2 hex symbols"); | |
1222 | PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory"); | |
1223 | PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n"); | |
1224 | PrintAndLog(" e : If 'e' is specified, elite computations applied to key"); | |
1225 | PrintAndLog(" r : If 'r' is specified, no computations applied to key"); | |
1226 | PrintAndLog(" o : override protection and allow modification of target blocks 0...4"); | |
1227 | PrintAndLog("Samples:"); | |
1228 | PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 06 l 1A k 1122334455667788 e"); | |
1229 | PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 05 l 19 k 0"); | |
1230 | PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 06 l 19 k 0 e"); | |
1231 | PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 06 l 19 k 0 e"); | |
1232 | PrintAndLog(" hf iclass clone f iclass_tagdump-121345.bin b 03 l 19 k 0 e o"); | |
1233 | } | |
1234 | ||
1235 | ||
1236 | static int CmdHFiClassCloneTag(const char *Cmd) { | |
1237 | char filename[FILE_PATH_SIZE] = {0}; | |
1238 | char tempStr[50]={0}; | |
1239 | uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1240 | uint8_t keyNbr = 0; | |
1241 | uint8_t fileNameLen = 0; | |
1242 | uint8_t startblock = 0; | |
1243 | uint8_t endblock = 0; | |
1244 | uint8_t dataLen = 0; | |
1245 | bool use_credit_key = false; | |
1246 | bool elite = false; | |
1247 | bool rawkey = false; | |
1248 | bool override_protection = false; | |
1249 | bool errors = false; | |
1250 | uint8_t cmdp = 0; | |
1251 | ||
1252 | while (param_getchar(Cmd, cmdp) != 0x00 && !errors) { | |
1253 | switch (param_getchar(Cmd, cmdp)) { | |
1254 | case 'h': | |
1255 | case 'H': | |
1256 | usage_hf_iclass_clone(); | |
1257 | return 0; | |
1258 | case 'b': | |
1259 | case 'B': | |
1260 | if (param_gethex(Cmd, cmdp+1, &startblock, 2)) { | |
1261 | PrintAndLog("Start Block No must include 2 HEX symbols\n"); | |
1262 | errors = true; | |
1263 | } | |
1264 | cmdp += 2; | |
1265 | break; | |
1266 | case 'c': | |
1267 | case 'C': | |
1268 | use_credit_key = true; | |
1269 | cmdp++; | |
1270 | break; | |
1271 | case 'e': | |
1272 | case 'E': | |
1273 | elite = true; | |
1274 | cmdp++; | |
1275 | break; | |
1276 | case 'f': | |
1277 | case 'F': | |
1278 | fileNameLen = param_getstr(Cmd, cmdp+1, filename, sizeof(filename)); | |
1279 | if (fileNameLen < 1) { | |
1280 | PrintAndLog("No filename found after f"); | |
1281 | errors = true; | |
1282 | } | |
1283 | cmdp += 2; | |
1284 | break; | |
1285 | case 'k': | |
1286 | case 'K': | |
1287 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
1288 | if (dataLen == 16) { | |
1289 | errors = param_gethex(tempStr, 0, KEY, dataLen); | |
1290 | } else if (dataLen == 1) { | |
1291 | keyNbr = param_get8(Cmd, cmdp+1); | |
1292 | if (keyNbr < ICLASS_KEYS_MAX) { | |
1293 | memcpy(KEY, iClass_Key_Table[keyNbr], 8); | |
1294 | } else { | |
1295 | PrintAndLog("\nERROR: Credit KeyNbr is invalid\n"); | |
1296 | errors = true; | |
1297 | } | |
1298 | } else { | |
1299 | PrintAndLog("\nERROR: Credit Key is incorrect length\n"); | |
1300 | errors = true; | |
1301 | } | |
1302 | cmdp += 2; | |
1303 | break; | |
1304 | case 'l': | |
1305 | case 'L': | |
1306 | if (param_gethex(Cmd, cmdp+1, &endblock, 2)) { | |
1307 | PrintAndLog("Last Block No must include 2 HEX symbols\n"); | |
1308 | errors = true; | |
1309 | } | |
1310 | cmdp += 2; | |
1311 | break; | |
1312 | case 'r': | |
1313 | case 'R': | |
1314 | rawkey = true; | |
1315 | cmdp++; | |
1316 | break; | |
1317 | case 'o': | |
1318 | case 'O': | |
1319 | override_protection = true; | |
1320 | cmdp++; | |
1321 | break; | |
1322 | default: | |
1323 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
1324 | errors = true; | |
1325 | break; | |
1326 | } | |
1327 | if (errors) { | |
1328 | usage_hf_iclass_clone(); | |
1329 | return 0; | |
1330 | } | |
1331 | } | |
1332 | ||
1333 | if (cmdp < 8) { | |
1334 | usage_hf_iclass_clone(); | |
1335 | return 0; | |
1336 | } | |
1337 | ||
1338 | if (startblock < 5) { | |
1339 | if (override_protection) { | |
1340 | PrintAndLog("Info: modifying keys, e-purse or configuration block."); | |
1341 | } else { | |
1342 | PrintAndLog("You are going to modify keys, e-purse or configuration block."); | |
1343 | PrintAndLog("You must add the 'o' (override) option to confirm that you know what you are doing"); | |
1344 | return 0; | |
1345 | } | |
1346 | } | |
1347 | ||
1348 | if ((endblock - startblock + 1) * 12 > USB_CMD_DATA_SIZE) { | |
1349 | PrintAndLog("Trying to write too many blocks at once. Max: %d", USB_CMD_DATA_SIZE/12); | |
1350 | } | |
1351 | ||
1352 | // file handling and reading | |
1353 | FILE *f; | |
1354 | f = fopen(filename,"rb"); | |
1355 | if (!f) { | |
1356 | PrintAndLog("Failed to read from file '%s'", filename); | |
1357 | return 1; | |
1358 | } | |
1359 | ||
1360 | uint8_t tag_data[USB_CMD_DATA_SIZE/12][8]; | |
1361 | fseek(f, startblock*8, SEEK_SET); | |
1362 | for (int i = 0; i < endblock - startblock + 1; i++) { | |
1363 | if (fread(&tag_data[i], 1, 8, f) == 0 ) { | |
1364 | PrintAndLog("File reading error."); | |
1365 | fclose(f); | |
1366 | return 2; | |
1367 | } | |
1368 | } | |
1369 | ||
1370 | uint8_t MAC[4] = {0x00, 0x00, 0x00, 0x00}; | |
1371 | uint8_t div_key[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; | |
1372 | uint8_t CSN[8]; | |
1373 | ||
1374 | if (!iClass_select(CSN, true, true, true) || !iClass_authenticate(CSN, KEY, MAC, div_key, use_credit_key, elite, rawkey, false, true)) { | |
1375 | DropField(); | |
1376 | return 0; | |
1377 | } | |
1378 | ||
1379 | UsbCommand w = {CMD_ICLASS_CLONE, {startblock, endblock}}; | |
1380 | uint8_t *ptr; | |
1381 | // calculate MAC for every block we will write | |
1382 | for (int i = 0; i < endblock - startblock + 1; i++) { | |
1383 | Calc_wb_mac(startblock + i, tag_data[i], div_key, MAC); | |
1384 | ptr = w.d.asBytes + i * 12; | |
1385 | memcpy(ptr, tag_data[i], 8); | |
1386 | memcpy(ptr + 8, MAC, 4); | |
1387 | } | |
1388 | ||
1389 | uint8_t p[12]; | |
1390 | PrintAndLog("Cloning"); | |
1391 | for (int i = 0; i < endblock - startblock + 1; i++){ | |
1392 | memcpy(p, w.d.asBytes + (i * 12), 12); | |
1393 | PrintAndLog("Block |%02x| %02x%02x%02x%02x%02x%02x%02x%02x | MAC |%02x%02x%02x%02x|", | |
1394 | i + startblock, p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8], p[9], p[10], p[11]); | |
1395 | } | |
1396 | ||
1397 | UsbCommand resp; | |
1398 | SendCommand(&w); | |
1399 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) { | |
1400 | PrintAndLog("Command execute timeout"); | |
1401 | DropField(); | |
1402 | return 0; | |
1403 | } | |
1404 | ||
1405 | DropField(); | |
1406 | return 1; | |
1407 | } | |
1408 | ||
1409 | ||
1410 | static int ReadBlock(uint8_t *KEY, uint8_t blockno, uint8_t keyType, bool elite, bool rawkey, bool NRMAC_replay, bool verbose, bool auth) { | |
1411 | ||
1412 | uint8_t MAC[4]={0x00,0x00,0x00,0x00}; | |
1413 | uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1414 | uint8_t CSN[8]; | |
1415 | ||
1416 | if (!iClass_select(CSN, verbose, true, true)) { | |
1417 | DropField(); | |
1418 | return 0; | |
1419 | } | |
1420 | ||
1421 | if (auth) { | |
1422 | if (!iClass_authenticate(CSN, KEY, MAC, div_key, (keyType==0x18), elite, rawkey, NRMAC_replay, verbose)) { | |
1423 | DropField(); | |
1424 | return 0; | |
1425 | } | |
1426 | } | |
1427 | ||
1428 | UsbCommand resp; | |
1429 | UsbCommand w = {CMD_ICLASS_READBLOCK, {blockno}}; | |
1430 | clearCommandBuffer(); | |
1431 | SendCommand(&w); | |
1432 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) { | |
1433 | PrintAndLog("Command execute timeout"); | |
1434 | DropField(); | |
1435 | return 0; | |
1436 | } | |
1437 | bool isOK = resp.arg[0]; | |
1438 | if (!isOK) { | |
1439 | PrintAndLog("Read Block Failed"); | |
1440 | DropField(); | |
1441 | return 0; | |
1442 | } | |
1443 | //data read is stored in: resp.d.asBytes[0-15] | |
1444 | if (verbose) | |
1445 | PrintAndLog("Block %02X: %s\n",blockno, sprint_hex(resp.d.asBytes,8)); | |
1446 | ||
1447 | return 1; | |
1448 | } | |
1449 | ||
1450 | ||
1451 | static void usage_hf_iclass_readblock(void) { | |
1452 | PrintAndLog("Usage: hf iclass readblk b <Block> k <Key> [c] [e|r|n]\n"); | |
1453 | PrintAndLog("Options:"); | |
1454 | PrintAndLog(" b <Block> : The block number as 2 hex symbols"); | |
1455 | PrintAndLog(" k <Key> : Access Key as 16 hex symbols or 1 hex to select key from memory"); | |
1456 | PrintAndLog(" c : If 'c' is specified, the key set is assumed to be the credit key\n"); | |
1457 | PrintAndLog(" e : If 'e' is specified, elite computations applied to key"); | |
1458 | PrintAndLog(" r : If 'r' is specified, no computations applied to key"); | |
1459 | PrintAndLog(" n : If 'n' is specified, <Key> specifies a NR/MAC pair which can be obtained by 'hf iclass snoop'"); | |
1460 | PrintAndLog("Samples:"); | |
1461 | PrintAndLog(" hf iclass readblk b 06 k 0011223344556677"); | |
1462 | PrintAndLog(" hf iclass readblk b 1B k 0011223344556677 c"); | |
1463 | PrintAndLog(" hf iclass readblk b 0A k 0"); | |
1464 | } | |
1465 | ||
1466 | ||
1467 | static int CmdHFiClass_ReadBlock(const char *Cmd) { | |
1468 | uint8_t blockno=0; | |
1469 | uint8_t keyType = 0x88; //debit key | |
1470 | uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1471 | uint8_t keyNbr = 0; | |
1472 | uint8_t dataLen = 0; | |
1473 | char tempStr[50] = {0}; | |
1474 | bool elite = false; | |
1475 | bool rawkey = false; | |
1476 | bool NRMAC_replay = false; | |
1477 | bool errors = false; | |
1478 | bool auth = false; | |
1479 | uint8_t cmdp = 0; | |
1480 | ||
1481 | while (param_getchar(Cmd, cmdp) != 0x00 && !errors) { | |
1482 | switch (param_getchar(Cmd, cmdp)) { | |
1483 | case 'h': | |
1484 | case 'H': | |
1485 | usage_hf_iclass_readblock(); | |
1486 | return 0; | |
1487 | case 'b': | |
1488 | case 'B': | |
1489 | if (param_gethex(Cmd, cmdp+1, &blockno, 2)) { | |
1490 | PrintAndLog("Block No must include 2 HEX symbols\n"); | |
1491 | errors = true; | |
1492 | } | |
1493 | cmdp += 2; | |
1494 | break; | |
1495 | case 'c': | |
1496 | case 'C': | |
1497 | keyType = 0x18; | |
1498 | cmdp++; | |
1499 | break; | |
1500 | case 'e': | |
1501 | case 'E': | |
1502 | elite = true; | |
1503 | cmdp++; | |
1504 | break; | |
1505 | case 'k': | |
1506 | case 'K': | |
1507 | auth = true; | |
1508 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
1509 | if (dataLen == 16) { | |
1510 | errors = param_gethex(tempStr, 0, KEY, dataLen); | |
1511 | } else if (dataLen == 1) { | |
1512 | keyNbr = param_get8(Cmd, cmdp+1); | |
1513 | if (keyNbr < ICLASS_KEYS_MAX) { | |
1514 | memcpy(KEY, iClass_Key_Table[keyNbr], 8); | |
1515 | } else { | |
1516 | PrintAndLog("\nERROR: KeyNbr is invalid\n"); | |
1517 | errors = true; | |
1518 | } | |
1519 | } else { | |
1520 | PrintAndLog("\nERROR: Key is incorrect length\n"); | |
1521 | errors = true; | |
1522 | } | |
1523 | cmdp += 2; | |
1524 | break; | |
1525 | case 'r': | |
1526 | case 'R': | |
1527 | rawkey = true; | |
1528 | cmdp++; | |
1529 | break; | |
1530 | case 'n': | |
1531 | case 'N': | |
1532 | NRMAC_replay = true; | |
1533 | cmdp++; | |
1534 | break; | |
1535 | default: | |
1536 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
1537 | errors = true; | |
1538 | break; | |
1539 | } | |
1540 | } | |
1541 | ||
1542 | if (elite + rawkey + NRMAC_replay > 1) { | |
1543 | PrintAndLog("You cannot combine the 'e', 'r', and 'n' options\n"); | |
1544 | errors = true; | |
1545 | } | |
1546 | ||
1547 | if (errors) { | |
1548 | usage_hf_iclass_readblock(); | |
1549 | return 0; | |
1550 | } | |
1551 | ||
1552 | if (cmdp < 2) { | |
1553 | usage_hf_iclass_readblock(); | |
1554 | return 0; | |
1555 | } | |
1556 | if (!auth) | |
1557 | PrintAndLog("warning: no authentication used with read, only a few specific blocks can be read accurately without authentication."); | |
1558 | ||
1559 | return ReadBlock(KEY, blockno, keyType, elite, rawkey, NRMAC_replay, true, auth); | |
1560 | } | |
1561 | ||
1562 | ||
1563 | static int CmdHFiClass_loclass(const char *Cmd) { | |
1564 | char opt = param_getchar(Cmd, 0); | |
1565 | ||
1566 | if (strlen(Cmd)<1 || opt == 'h') { | |
1567 | PrintAndLog("Usage: hf iclass loclass [options]"); | |
1568 | PrintAndLog("Options:"); | |
1569 | PrintAndLog("h Show this help"); | |
1570 | PrintAndLog("t Perform self-test"); | |
1571 | PrintAndLog("f <filename> Bruteforce iclass dumpfile"); | |
1572 | PrintAndLog(" An iclass dumpfile is assumed to consist of an arbitrary number of"); | |
1573 | PrintAndLog(" malicious CSNs, and their protocol responses"); | |
1574 | PrintAndLog(" The binary format of the file is expected to be as follows: "); | |
1575 | PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>"); | |
1576 | PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>"); | |
1577 | PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>"); | |
1578 | PrintAndLog(" ... totalling N*24 bytes"); | |
1579 | return 0; | |
1580 | } | |
1581 | char fileName[255] = {0}; | |
1582 | if(opt == 'f') { | |
1583 | if(param_getstr(Cmd, 1, fileName, sizeof(fileName)) > 0) { | |
1584 | return bruteforceFileNoKeys(fileName); | |
1585 | } else { | |
1586 | PrintAndLog("You must specify a filename"); | |
1587 | } | |
1588 | } else if(opt == 't') { | |
1589 | int errors = testCipherUtils(); | |
1590 | errors += testMAC(); | |
1591 | errors += doKeyTests(0); | |
1592 | errors += testElite(); | |
1593 | if(errors) { | |
1594 | prnlog("OBS! There were errors!!!"); | |
1595 | } | |
1596 | return errors; | |
1597 | } | |
1598 | ||
1599 | return 0; | |
1600 | } | |
1601 | ||
1602 | ||
1603 | static void usage_hf_iclass_readtagfile() { | |
1604 | PrintAndLog("Usage: hf iclass readtagfile <filename> [startblock] [endblock]"); | |
1605 | } | |
1606 | ||
1607 | ||
1608 | static int CmdHFiClassReadTagFile(const char *Cmd) { | |
1609 | int startblock = 0; | |
1610 | int endblock = 0; | |
1611 | char tempnum[5]; | |
1612 | FILE *f; | |
1613 | char filename[FILE_PATH_SIZE]; | |
1614 | if (param_getstr(Cmd, 0, filename, sizeof(filename)) < 1) { | |
1615 | usage_hf_iclass_readtagfile(); | |
1616 | return 0; | |
1617 | } | |
1618 | if (param_getstr(Cmd, 1, tempnum, sizeof(tempnum)) < 1) | |
1619 | startblock = 0; | |
1620 | else | |
1621 | sscanf(tempnum,"%d",&startblock); | |
1622 | ||
1623 | if (param_getstr(Cmd,2, tempnum, sizeof(tempnum)) < 1) | |
1624 | endblock = 0; | |
1625 | else | |
1626 | sscanf(tempnum,"%d",&endblock); | |
1627 | // file handling and reading | |
1628 | f = fopen(filename,"rb"); | |
1629 | if(!f) { | |
1630 | PrintAndLog("Failed to read from file '%s'", filename); | |
1631 | return 1; | |
1632 | } | |
1633 | fseek(f, 0, SEEK_END); | |
1634 | long fsize = ftell(f); | |
1635 | fseek(f, 0, SEEK_SET); | |
1636 | ||
1637 | if ( fsize < 0 ) { | |
1638 | PrintAndLog("Error, when getting filesize"); | |
1639 | fclose(f); | |
1640 | return 1; | |
1641 | } | |
1642 | ||
1643 | uint8_t *dump = malloc(fsize); | |
1644 | ||
1645 | size_t bytes_read = fread(dump, 1, fsize, f); | |
1646 | fclose(f); | |
1647 | uint8_t *csn = dump; | |
1648 | printf("------+--+-------------------------+\n"); | |
1649 | printf("CSN |00| %s|\n", sprint_hex(csn, 8) ); | |
1650 | // printIclassDumpInfo(dump); | |
1651 | printIclassDumpContents(dump,startblock,endblock,bytes_read); | |
1652 | free(dump); | |
1653 | return 0; | |
1654 | } | |
1655 | ||
1656 | /* | |
1657 | uint64_t xorcheck(uint64_t sdiv,uint64_t hdiv) { | |
1658 | uint64_t new_div = 0x00; | |
1659 | new_div ^= sdiv; | |
1660 | new_div ^= hdiv; | |
1661 | return new_div; | |
1662 | } | |
1663 | ||
1664 | uint64_t hexarray_to_uint64(uint8_t *key) { | |
1665 | char temp[17]; | |
1666 | uint64_t uint_key; | |
1667 | for (int i = 0;i < 8;i++) | |
1668 | sprintf(&temp[(i *2)],"%02X",key[i]); | |
1669 | temp[16] = '\0'; | |
1670 | if (sscanf(temp,"%016" SCNx64,&uint_key) < 1) | |
1671 | return 0; | |
1672 | return uint_key; | |
1673 | } | |
1674 | */ | |
1675 | ||
1676 | ||
1677 | //when told CSN, oldkey, newkey, if new key is elite (elite), and if old key was elite (oldElite) | |
1678 | //calculate and return xor_div_key (ready for a key write command) | |
1679 | //print all div_keys if verbose | |
1680 | static void HFiClassCalcNewKey(uint8_t *CSN, uint8_t *OLDKEY, uint8_t *NEWKEY, uint8_t *xor_div_key, bool elite, bool oldElite, bool verbose){ | |
1681 | uint8_t old_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1682 | uint8_t new_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1683 | //get old div key | |
1684 | HFiClassCalcDivKey(CSN, OLDKEY, old_div_key, oldElite); | |
1685 | //get new div key | |
1686 | HFiClassCalcDivKey(CSN, NEWKEY, new_div_key, elite); | |
1687 | ||
1688 | for (uint8_t i = 0; i < sizeof(old_div_key); i++){ | |
1689 | xor_div_key[i] = old_div_key[i] ^ new_div_key[i]; | |
1690 | } | |
1691 | if (verbose) { | |
1692 | printf("Old Div Key : %s\n",sprint_hex(old_div_key,8)); | |
1693 | printf("New Div Key : %s\n",sprint_hex(new_div_key,8)); | |
1694 | printf("Xor Div Key : %s\n",sprint_hex(xor_div_key,8)); | |
1695 | } | |
1696 | } | |
1697 | ||
1698 | ||
1699 | static void usage_hf_iclass_calc_newkey(void) { | |
1700 | PrintAndLog("HELP : Manage iClass Keys in client memory:\n"); | |
1701 | PrintAndLog("Usage: hf iclass calc_newkey o <Old key> n <New key> s [csn] e"); | |
1702 | PrintAndLog(" Options:"); | |
1703 | PrintAndLog(" o <oldkey> : *specify a key as 16 hex symbols or a key number as 1 symbol"); | |
1704 | PrintAndLog(" n <newkey> : *specify a key as 16 hex symbols or a key number as 1 symbol"); | |
1705 | PrintAndLog(" s <csn> : specify a card Serial number to diversify the key (if omitted will attempt to read a csn)"); | |
1706 | PrintAndLog(" e : specify new key as elite calc"); | |
1707 | PrintAndLog(" ee : specify old and new key as elite calc"); | |
1708 | PrintAndLog("Samples:"); | |
1709 | PrintAndLog(" e key to e key given csn : hf iclass calcnewkey o 1122334455667788 n 2233445566778899 s deadbeafdeadbeaf ee"); | |
1710 | PrintAndLog(" std key to e key read csn: hf iclass calcnewkey o 1122334455667788 n 2233445566778899 e"); | |
1711 | PrintAndLog(" std to std read csn : hf iclass calcnewkey o 1122334455667788 n 2233445566778899"); | |
1712 | PrintAndLog("NOTE: * = required\n"); | |
1713 | } | |
1714 | ||
1715 | ||
1716 | static int CmdHFiClassCalcNewKey(const char *Cmd) { | |
1717 | uint8_t OLDKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1718 | uint8_t NEWKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1719 | uint8_t xor_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1720 | uint8_t CSN[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
1721 | uint8_t keyNbr = 0; | |
1722 | uint8_t dataLen = 0; | |
1723 | char tempStr[50] = {0}; | |
1724 | bool givenCSN = false; | |
1725 | bool oldElite = false; | |
1726 | bool elite = false; | |
1727 | bool errors = false; | |
1728 | uint8_t cmdp = 0; | |
1729 | ||
1730 | while (param_getchar(Cmd, cmdp) != 0x00 && !errors) { | |
1731 | switch(param_getchar(Cmd, cmdp)) { | |
1732 | case 'h': | |
1733 | case 'H': | |
1734 | usage_hf_iclass_calc_newkey(); | |
1735 | return 0; | |
1736 | case 'e': | |
1737 | case 'E': | |
1738 | dataLen = param_getstr(Cmd, cmdp, tempStr, sizeof(tempStr)); | |
1739 | if (dataLen==2) | |
1740 | oldElite = true; | |
1741 | elite = true; | |
1742 | cmdp++; | |
1743 | break; | |
1744 | case 'n': | |
1745 | case 'N': | |
1746 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
1747 | if (dataLen == 16) { | |
1748 | errors = param_gethex(tempStr, 0, NEWKEY, dataLen); | |
1749 | } else if (dataLen == 1) { | |
1750 | keyNbr = param_get8(Cmd, cmdp+1); | |
1751 | if (keyNbr < ICLASS_KEYS_MAX) { | |
1752 | memcpy(NEWKEY, iClass_Key_Table[keyNbr], 8); | |
1753 | } else { | |
1754 | PrintAndLog("\nERROR: NewKey Nbr is invalid\n"); | |
1755 | errors = true; | |
1756 | } | |
1757 | } else { | |
1758 | PrintAndLog("\nERROR: NewKey is incorrect length\n"); | |
1759 | errors = true; | |
1760 | } | |
1761 | cmdp += 2; | |
1762 | break; | |
1763 | case 'o': | |
1764 | case 'O': | |
1765 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
1766 | if (dataLen == 16) { | |
1767 | errors = param_gethex(tempStr, 0, OLDKEY, dataLen); | |
1768 | } else if (dataLen == 1) { | |
1769 | keyNbr = param_get8(Cmd, cmdp+1); | |
1770 | if (keyNbr < ICLASS_KEYS_MAX) { | |
1771 | memcpy(OLDKEY, iClass_Key_Table[keyNbr], 8); | |
1772 | } else { | |
1773 | PrintAndLog("\nERROR: Credit KeyNbr is invalid\n"); | |
1774 | errors = true; | |
1775 | } | |
1776 | } else { | |
1777 | PrintAndLog("\nERROR: Credit Key is incorrect length\n"); | |
1778 | errors = true; | |
1779 | } | |
1780 | cmdp += 2; | |
1781 | break; | |
1782 | case 's': | |
1783 | case 'S': | |
1784 | givenCSN = true; | |
1785 | if (param_gethex(Cmd, cmdp+1, CSN, 16)) { | |
1786 | usage_hf_iclass_calc_newkey(); | |
1787 | return 0; | |
1788 | } | |
1789 | cmdp += 2; | |
1790 | break; | |
1791 | default: | |
1792 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
1793 | errors = true; | |
1794 | break; | |
1795 | } | |
1796 | if (errors) { | |
1797 | usage_hf_iclass_calc_newkey(); | |
1798 | return 0; | |
1799 | } | |
1800 | } | |
1801 | ||
1802 | if (cmdp < 4) { | |
1803 | usage_hf_iclass_calc_newkey(); | |
1804 | return 0; | |
1805 | } | |
1806 | ||
1807 | if (!givenCSN) | |
1808 | if (!iClass_select(CSN, true, true, true)) { | |
1809 | DropField(); | |
1810 | return 0; | |
1811 | } | |
1812 | DropField(); | |
1813 | ||
1814 | HFiClassCalcNewKey(CSN, OLDKEY, NEWKEY, xor_div_key, elite, oldElite, true); | |
1815 | return 0; | |
1816 | } | |
1817 | ||
1818 | ||
1819 | static int loadKeys(char *filename) { | |
1820 | FILE *f; | |
1821 | f = fopen(filename,"rb"); | |
1822 | if(!f) { | |
1823 | PrintAndLog("Failed to read from file '%s'", filename); | |
1824 | return 0; | |
1825 | } | |
1826 | fseek(f, 0, SEEK_END); | |
1827 | long fsize = ftell(f); | |
1828 | fseek(f, 0, SEEK_SET); | |
1829 | ||
1830 | if ( fsize < 0 ) { | |
1831 | PrintAndLog("Error, when getting filesize"); | |
1832 | fclose(f); | |
1833 | return 1; | |
1834 | } | |
1835 | ||
1836 | uint8_t *dump = malloc(fsize); | |
1837 | ||
1838 | size_t bytes_read = fread(dump, 1, fsize, f); | |
1839 | fclose(f); | |
1840 | if (bytes_read > ICLASS_KEYS_MAX * 8){ | |
1841 | PrintAndLog("File is too long to load - bytes: %u", bytes_read); | |
1842 | free(dump); | |
1843 | return 0; | |
1844 | } | |
1845 | uint8_t i = 0; | |
1846 | for (; i < bytes_read/8; i++){ | |
1847 | memcpy(iClass_Key_Table[i],dump+(i*8),8); | |
1848 | } | |
1849 | free(dump); | |
1850 | PrintAndLog("%u keys loaded", i); | |
1851 | return 1; | |
1852 | } | |
1853 | ||
1854 | ||
1855 | static int saveKeys(char *filename) { | |
1856 | FILE *f; | |
1857 | f = fopen(filename,"wb"); | |
1858 | if (f == NULL) { | |
1859 | printf("error opening file %s\n",filename); | |
1860 | return 0; | |
1861 | } | |
1862 | for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){ | |
1863 | if (fwrite(iClass_Key_Table[i],8,1,f) != 1){ | |
1864 | PrintAndLog("save key failed to write to file: %s", filename); | |
1865 | break; | |
1866 | } | |
1867 | } | |
1868 | fclose(f); | |
1869 | return 0; | |
1870 | } | |
1871 | ||
1872 | ||
1873 | static int printKeys(void) { | |
1874 | PrintAndLog(""); | |
1875 | for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){ | |
1876 | PrintAndLog("%u: %s",i,sprint_hex(iClass_Key_Table[i],8)); | |
1877 | } | |
1878 | PrintAndLog(""); | |
1879 | return 0; | |
1880 | } | |
1881 | ||
1882 | ||
1883 | static void usage_hf_iclass_managekeys(void) { | |
1884 | PrintAndLog("HELP : Manage iClass Keys in client memory:\n"); | |
1885 | PrintAndLog("Usage: hf iclass managekeys n [keynbr] k [key] f [filename] s l p\n"); | |
1886 | PrintAndLog(" Options:"); | |
1887 | PrintAndLog(" n <keynbr> : specify the keyNbr to set in memory"); | |
1888 | PrintAndLog(" k <key> : set a key in memory"); | |
1889 | PrintAndLog(" f <filename>: specify a filename to use with load or save operations"); | |
1890 | PrintAndLog(" s : save keys in memory to file specified by filename"); | |
1891 | PrintAndLog(" l : load keys to memory from file specified by filename"); | |
1892 | PrintAndLog(" p : print keys loaded into memory\n"); | |
1893 | PrintAndLog("Samples:"); | |
1894 | PrintAndLog(" set key : hf iclass managekeys n 0 k 1122334455667788"); | |
1895 | PrintAndLog(" save key file: hf iclass managekeys f mykeys.bin s"); | |
1896 | PrintAndLog(" load key file: hf iclass managekeys f mykeys.bin l"); | |
1897 | PrintAndLog(" print keys : hf iclass managekeys p\n"); | |
1898 | } | |
1899 | ||
1900 | ||
1901 | static int CmdHFiClassManageKeys(const char *Cmd) { | |
1902 | uint8_t keyNbr = 0; | |
1903 | uint8_t dataLen = 0; | |
1904 | uint8_t KEY[8] = {0}; | |
1905 | char filename[FILE_PATH_SIZE]; | |
1906 | uint8_t fileNameLen = 0; | |
1907 | bool errors = false; | |
1908 | uint8_t operation = 0; | |
1909 | char tempStr[20]; | |
1910 | uint8_t cmdp = 0; | |
1911 | ||
1912 | while(param_getchar(Cmd, cmdp) != 0x00) { | |
1913 | switch(param_getchar(Cmd, cmdp)) { | |
1914 | case 'h': | |
1915 | case 'H': | |
1916 | usage_hf_iclass_managekeys(); | |
1917 | return 0; | |
1918 | case 'f': | |
1919 | case 'F': | |
1920 | fileNameLen = param_getstr(Cmd, cmdp+1, filename, sizeof(filename)); | |
1921 | if (fileNameLen < 1) { | |
1922 | PrintAndLog("No filename found after f"); | |
1923 | errors = true; | |
1924 | } | |
1925 | cmdp += 2; | |
1926 | break; | |
1927 | case 'n': | |
1928 | case 'N': | |
1929 | keyNbr = param_get8(Cmd, cmdp+1); | |
1930 | if (keyNbr >= ICLASS_KEYS_MAX) { | |
1931 | PrintAndLog("Invalid block number"); | |
1932 | errors = true; | |
1933 | } | |
1934 | cmdp += 2; | |
1935 | break; | |
1936 | case 'k': | |
1937 | case 'K': | |
1938 | operation += 3; //set key | |
1939 | dataLen = param_getstr(Cmd, cmdp+1, tempStr, sizeof(tempStr)); | |
1940 | if (dataLen == 16) { //ul-c or ev1/ntag key length | |
1941 | errors = param_gethex(tempStr, 0, KEY, dataLen); | |
1942 | } else { | |
1943 | PrintAndLog("\nERROR: Key is incorrect length\n"); | |
1944 | errors = true; | |
1945 | } | |
1946 | cmdp += 2; | |
1947 | break; | |
1948 | case 'p': | |
1949 | case 'P': | |
1950 | operation += 4; //print keys in memory | |
1951 | cmdp++; | |
1952 | break; | |
1953 | case 'l': | |
1954 | case 'L': | |
1955 | operation += 5; //load keys from file | |
1956 | cmdp++; | |
1957 | break; | |
1958 | case 's': | |
1959 | case 'S': | |
1960 | operation += 6; //save keys to file | |
1961 | cmdp++; | |
1962 | break; | |
1963 | default: | |
1964 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
1965 | errors = true; | |
1966 | break; | |
1967 | } | |
1968 | if (errors) { | |
1969 | usage_hf_iclass_managekeys(); | |
1970 | return 0; | |
1971 | } | |
1972 | } | |
1973 | ||
1974 | if (operation == 0){ | |
1975 | PrintAndLog("no operation specified (load, save, or print)\n"); | |
1976 | usage_hf_iclass_managekeys(); | |
1977 | return 0; | |
1978 | } | |
1979 | ||
1980 | if (operation > 6){ | |
1981 | PrintAndLog("Too many operations specified\n"); | |
1982 | usage_hf_iclass_managekeys(); | |
1983 | return 0; | |
1984 | } | |
1985 | if (operation > 4 && fileNameLen == 0){ | |
1986 | PrintAndLog("You must enter a filename when loading or saving\n"); | |
1987 | usage_hf_iclass_managekeys(); | |
1988 | return 0; | |
1989 | } | |
1990 | ||
1991 | switch (operation){ | |
1992 | case 3: memcpy(iClass_Key_Table[keyNbr], KEY, 8); return 1; | |
1993 | case 4: return printKeys(); | |
1994 | case 5: return loadKeys(filename); | |
1995 | case 6: return saveKeys(filename); | |
1996 | break; | |
1997 | } | |
1998 | return 0; | |
1999 | } | |
2000 | ||
2001 | ||
2002 | static int CmdHFiClassCheckKeys(const char *Cmd) { | |
2003 | ||
2004 | uint8_t mac[4] = {0x00,0x00,0x00,0x00}; | |
2005 | uint8_t key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
2006 | uint8_t div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; | |
2007 | ||
2008 | // elite key, raw key, standard key | |
2009 | bool use_elite = false; | |
2010 | bool use_raw = false; | |
2011 | bool found_debit = false; | |
2012 | bool found_credit = false; | |
2013 | bool errors = false; | |
2014 | uint8_t cmdp = 0x00; | |
2015 | FILE *f; | |
2016 | char filename[FILE_PATH_SIZE] = {0}; | |
2017 | uint8_t fileNameLen = 0; | |
2018 | char buf[17]; | |
2019 | uint8_t *keyBlock = NULL, *p; | |
2020 | int keycnt = 0; | |
2021 | ||
2022 | while (param_getchar(Cmd, cmdp) != 0x00 && !errors) { | |
2023 | switch (param_getchar(Cmd, cmdp)) { | |
2024 | case 'h': | |
2025 | case 'H': | |
2026 | usage_hf_iclass_chk(); | |
2027 | return 0; | |
2028 | case 'f': | |
2029 | case 'F': | |
2030 | fileNameLen = param_getstr(Cmd, cmdp+1, filename, sizeof(filename)); | |
2031 | if (fileNameLen < 1) { | |
2032 | PrintAndLog("No filename found after f"); | |
2033 | errors = true; | |
2034 | } | |
2035 | cmdp += 2; | |
2036 | break; | |
2037 | case 'e': | |
2038 | case 'E': | |
2039 | use_elite = true; | |
2040 | cmdp++; | |
2041 | break; | |
2042 | case 'r': | |
2043 | case 'R': | |
2044 | use_raw = true; | |
2045 | cmdp++; | |
2046 | break; | |
2047 | default: | |
2048 | PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp)); | |
2049 | errors = true; | |
2050 | break; | |
2051 | } | |
2052 | } | |
2053 | ||
2054 | if (errors) { | |
2055 | usage_hf_iclass_chk(); | |
2056 | return 0; | |
2057 | } | |
2058 | ||
2059 | if (!(f = fopen(filename , "r"))) { | |
2060 | PrintAndLog("File %s not found or locked.", filename); | |
2061 | return 1; | |
2062 | } | |
2063 | ||
2064 | while (fgets(buf, sizeof(buf), f)) { | |
2065 | if (strlen(buf) < 16 || buf[15] == '\n') | |
2066 | continue; | |
2067 | ||
2068 | while (fgetc(f) != '\n' && !feof(f)) ; //goto next line | |
2069 | ||
2070 | if (buf[0] == '#') continue; //The line start with # is comment, skip | |
2071 | ||
2072 | if (!isxdigit(buf[0])){ | |
2073 | PrintAndLog("File content error. '%s' must include 16 HEX symbols", buf); | |
2074 | continue; | |
2075 | } | |
2076 | ||
2077 | buf[16] = 0; | |
2078 | ||
2079 | p = realloc(keyBlock, 8 * (keycnt + 1)); | |
2080 | if (!p) { | |
2081 | PrintAndLog("Cannot allocate memory for default keys"); | |
2082 | free(keyBlock); | |
2083 | fclose(f); | |
2084 | return 2; | |
2085 | } | |
2086 | keyBlock = p; | |
2087 | ||
2088 | memset(keyBlock + 8 * keycnt, 0, 8); | |
2089 | num_to_bytes(strtoull(buf, NULL, 16), 8, keyBlock + 8 * keycnt); | |
2090 | ||
2091 | keycnt++; | |
2092 | memset(buf, 0, sizeof(buf)); | |
2093 | } | |
2094 | fclose(f); | |
2095 | PrintAndLog("Loaded %2d keys from %s", keycnt, filename); | |
2096 | ||
2097 | uint8_t CSN[8]; | |
2098 | if (!iClass_select(CSN, false, true, true)) { | |
2099 | DropField(); | |
2100 | return 0; | |
2101 | } | |
2102 | ||
2103 | for (uint32_t c = 0; c < keycnt; c++) { | |
2104 | ||
2105 | memcpy(key, keyBlock + 8 * c, 8); | |
2106 | ||
2107 | // debit key | |
2108 | if (iClass_authenticate(CSN, key, mac, div_key, false, use_elite, use_raw, false, false)) { | |
2109 | PrintAndLog("\n Found AA1 debit key\t\t[%s]", sprint_hex(key, 8)); | |
2110 | found_debit = true; | |
2111 | } | |
2112 | ||
2113 | // credit key | |
2114 | if (iClass_authenticate(CSN, key, mac, div_key, true, use_elite, use_raw, false, false)) { | |
2115 | PrintAndLog("\n Found AA2 credit key\t\t[%s]", sprint_hex(key, 8)); | |
2116 | found_credit = true; | |
2117 | } | |
2118 | ||
2119 | // both keys found. | |
2120 | if (found_debit && found_credit) | |
2121 | break; | |
2122 | } | |
2123 | ||
2124 | DropField(); | |
2125 | free(keyBlock); | |
2126 | PrintAndLog(""); | |
2127 | return 0; | |
2128 | } | |
2129 | ||
2130 | ||
2131 | static void usage_hf_iclass_permutekey(void) { | |
2132 | PrintAndLogEx(NORMAL, "Convert keys from standard NIST to iClass format (and vice versa)"); | |
2133 | PrintAndLogEx(NORMAL, ""); | |
2134 | PrintAndLogEx(NORMAL, "Usage: hf iclass permute [h] [r] <key>"); | |
2135 | PrintAndLogEx(NORMAL, "Options:"); | |
2136 | PrintAndLogEx(NORMAL, " h This help"); | |
2137 | PrintAndLogEx(NORMAL, " r reverse convert key from iClass to NIST format"); | |
2138 | PrintAndLogEx(NORMAL, ""); | |
2139 | PrintAndLogEx(NORMAL, "Examples:"); | |
2140 | PrintAndLogEx(NORMAL, " hf iclass permute r 0123456789abcdef"); | |
2141 | } | |
2142 | ||
2143 | ||
2144 | static int CmdHFiClassPermuteKey(const char *Cmd) { | |
2145 | ||
2146 | uint8_t key[8] = {0}; | |
2147 | uint8_t data[16] = {0}; | |
2148 | bool isReverse = false; | |
2149 | int len = sizeof(data); | |
2150 | char cmdp = tolower(param_getchar(Cmd, 0)); | |
2151 | if (strlen(Cmd) == 0 || cmdp == 'h') { | |
2152 | usage_hf_iclass_permutekey(); | |
2153 | return 0; | |
2154 | } | |
2155 | ||
2156 | if (cmdp == 'r') { | |
2157 | isReverse = true; | |
2158 | param_gethex_ex(Cmd, 1, data, &len); | |
2159 | } else if (cmdp == 'f') { | |
2160 | param_gethex_ex(Cmd, 1, data, &len); | |
2161 | } else { | |
2162 | param_gethex_ex(Cmd, 0, data, &len); | |
2163 | } | |
2164 | ||
2165 | ||
2166 | if (len % 2) { | |
2167 | usage_hf_iclass_permutekey(); | |
2168 | return 0; | |
2169 | } | |
2170 | ||
2171 | len >>= 1; | |
2172 | ||
2173 | memcpy(key, data, 8); | |
2174 | ||
2175 | if (isReverse) { | |
2176 | // generate_rev(data, len); | |
2177 | uint8_t key_std_format[8] = {0}; | |
2178 | permutekey_rev(key, key_std_format); | |
2179 | PrintAndLogEx(SUCCESS, "key in standard NIST format: %s \n", sprint_hex(key_std_format, 8)); | |
2180 | // if (mbedtls_des_key_check_key_parity(key_std_format | |
2181 | } else { | |
2182 | // generate(data, len); | |
2183 | uint8_t key_iclass_format[8] = {0}; | |
2184 | permutekey(key, key_iclass_format); | |
2185 | PrintAndLogEx(SUCCESS, "key in iClass (permuted) format: %s \n", sprint_hex(key_iclass_format, 8)); | |
2186 | } | |
2187 | return 0; | |
2188 | } | |
2189 | ||
2190 | ||
2191 | static int CmdHelp(const char *Cmd); | |
2192 | ||
2193 | static command_t CommandTable[] = { | |
2194 | {"help", CmdHelp, 1, "This help"}, | |
2195 | {"calcnewkey", CmdHFiClassCalcNewKey, 1, "[options..] Calc Diversified keys (blocks 3 & 4) to write new keys"}, | |
2196 | {"chk", CmdHFiClassCheckKeys, 0, " Check keys"}, | |
2197 | {"clone", CmdHFiClassCloneTag, 0, "[options..] Authenticate and Clone from iClass bin file"}, | |
2198 | {"decrypt", CmdHFiClassDecrypt, 1, "[f <fname>] Decrypt tagdump" }, | |
2199 | {"dump", CmdHFiClassReader_Dump, 0, "[options..] Authenticate and Dump iClass tag's AA1 and/or AA2"}, | |
2200 | {"eload", CmdHFiClassELoad, 0, "[f <fname>] (experimental) Load data into iClass emulator memory"}, | |
2201 | {"encryptblk", CmdHFiClassEncryptBlk, 1, "<BlockData> Encrypt given block data"}, | |
2202 | {"list", CmdHFiClassList, 0, " (Deprecated) List iClass history"}, | |
2203 | {"loclass", CmdHFiClass_loclass, 1, "[options..] Use loclass to perform bruteforce of reader attack dump"}, | |
2204 | {"managekeys", CmdHFiClassManageKeys, 1, "[options..] Manage the keys to use with iClass"}, | |
2205 | {"permutekey", CmdHFiClassPermuteKey, 1, " iClass key permutation"}, | |
2206 | {"readblk", CmdHFiClass_ReadBlock, 0, "[options..] Authenticate and Read iClass block"}, | |
2207 | {"reader", CmdHFiClassReader, 0, " Look for iClass tags until a key or the pm3 button is pressed"}, | |
2208 | {"readtagfile", CmdHFiClassReadTagFile, 1, "[options..] Display Content from tagfile"}, | |
2209 | {"sim", CmdHFiClassSim, 0, "[options..] Simulate iClass tag"}, | |
2210 | {"snoop", CmdHFiClassSnoop, 0, " Eavesdrop iClass communication"}, | |
2211 | {"writeblk", CmdHFiClass_WriteBlock, 0, "[options..] Authenticate and Write iClass block"}, | |
2212 | {NULL, NULL, 0, NULL} | |
2213 | }; | |
2214 | ||
2215 | ||
2216 | int CmdHFiClass(const char *Cmd) { | |
2217 | clearCommandBuffer(); | |
2218 | CmdsParse(CommandTable, Cmd); | |
2219 | return 0; | |
2220 | } | |
2221 | ||
2222 | ||
2223 | int CmdHelp(const char *Cmd) { | |
2224 | CmdsHelp(CommandTable); | |
2225 | return 0; | |
2226 | } |