]>
Commit | Line | Data |
---|---|---|
1 | //----------------------------------------------------------------------------- | |
2 | // Copyright (C) 2017 Merlok | |
3 | // | |
4 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
5 | // at your option, any later version. See the LICENSE.txt file for the text of | |
6 | // the license. | |
7 | //----------------------------------------------------------------------------- | |
8 | // EMV commands | |
9 | //----------------------------------------------------------------------------- | |
10 | ||
11 | #include <ctype.h> | |
12 | #include "cmdemv.h" | |
13 | #include "test/cryptotest.h" | |
14 | #include "cliparser/cliparser.h" | |
15 | ||
16 | int CmdHFEMVSelect(const char *cmd) { | |
17 | uint8_t data[APDU_AID_LEN] = {0}; | |
18 | int datalen = 0; | |
19 | ||
20 | ||
21 | CLIParserInit("hf 14a select", | |
22 | "Executes select applet command", | |
23 | "Usage:\n\thf emv select -s a00000000101 -> select card, select applet\n\thf emv select -st a00000000101 -> select card, select applet, show result in TLV\n"); | |
24 | ||
25 | void* argtable[] = { | |
26 | arg_param_begin, | |
27 | arg_lit0("sS", "select", "activate field and select card"), | |
28 | arg_lit0("kK", "keep", "keep field for next command"), | |
29 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
30 | arg_lit0("tT", "tlv", "TLV decode results"), | |
31 | arg_str0(NULL, NULL, "<HEX applet AID>", NULL), | |
32 | arg_param_end | |
33 | }; | |
34 | CLIExecWithReturn(cmd, argtable, true); | |
35 | ||
36 | bool activateField = arg_get_lit(1); | |
37 | bool leaveSignalON = arg_get_lit(2); | |
38 | bool APDULogging = arg_get_lit(3); | |
39 | bool decodeTLV = arg_get_lit(4); | |
40 | CLIGetStrBLessWithReturn(5, data, &datalen, 0); | |
41 | CLIParserFree(); | |
42 | ||
43 | SetAPDULogging(APDULogging); | |
44 | ||
45 | // exec | |
46 | uint8_t buf[APDU_RES_LEN] = {0}; | |
47 | size_t len = 0; | |
48 | uint16_t sw = 0; | |
49 | int res = EMVSelect(activateField, leaveSignalON, data, datalen, buf, sizeof(buf), &len, &sw, NULL); | |
50 | ||
51 | if (sw) | |
52 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
53 | ||
54 | if (res) | |
55 | return res; | |
56 | ||
57 | if (decodeTLV) | |
58 | TLVPrintFromBuffer(buf, len); | |
59 | ||
60 | return 0; | |
61 | } | |
62 | ||
63 | int CmdHFEMVSearch(const char *cmd) { | |
64 | ||
65 | CLIParserInit("hf 14a select", | |
66 | "Tries to select all applets from applet list:\n", | |
67 | "Usage:\n\thf emv search -s -> select card and search\n\thf emv search -st -> select card, search and show result in TLV\n"); | |
68 | ||
69 | void* argtable[] = { | |
70 | arg_param_begin, | |
71 | arg_lit0("sS", "select", "activate field and select card"), | |
72 | arg_lit0("kK", "keep", "keep field ON for next command"), | |
73 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
74 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), | |
75 | arg_param_end | |
76 | }; | |
77 | CLIExecWithReturn(cmd, argtable, true); | |
78 | ||
79 | bool activateField = arg_get_lit(1); | |
80 | bool leaveSignalON = arg_get_lit(2); | |
81 | bool APDULogging = arg_get_lit(3); | |
82 | bool decodeTLV = arg_get_lit(4); | |
83 | CLIParserFree(); | |
84 | ||
85 | SetAPDULogging(APDULogging); | |
86 | ||
87 | struct tlvdb *t = NULL; | |
88 | const char *al = "Applets list"; | |
89 | t = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); | |
90 | ||
91 | if (EMVSearch(activateField, leaveSignalON, decodeTLV, t)) { | |
92 | tlvdb_free(t); | |
93 | return 2; | |
94 | } | |
95 | ||
96 | PrintAndLog("Search completed."); | |
97 | ||
98 | // print list here | |
99 | if (!decodeTLV) { | |
100 | TLVPrintAIDlistFromSelectTLV(t); | |
101 | } | |
102 | ||
103 | tlvdb_free(t); | |
104 | ||
105 | return 0; | |
106 | } | |
107 | ||
108 | int CmdHFEMVPPSE(const char *cmd) { | |
109 | ||
110 | ||
111 | CLIParserInit("hf 14a pse", | |
112 | "Executes PSE/PPSE select command. It returns list of applet on the card:\n", | |
113 | "Usage:\n\thf emv pse -s1 -> select, get pse\n\thf emv pse -st2 -> select, get ppse, show result in TLV\n"); | |
114 | ||
115 | void* argtable[] = { | |
116 | arg_param_begin, | |
117 | arg_lit0("sS", "select", "activate field and select card"), | |
118 | arg_lit0("kK", "keep", "keep field ON for next command"), | |
119 | arg_lit0("1", "pse", "pse (1PAY.SYS.DDF01) mode"), | |
120 | arg_lit0("2", "ppse", "ppse (2PAY.SYS.DDF01) mode (default mode)"), | |
121 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
122 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), | |
123 | arg_param_end | |
124 | }; | |
125 | CLIExecWithReturn(cmd, argtable, true); | |
126 | ||
127 | bool activateField = arg_get_lit(1); | |
128 | bool leaveSignalON = arg_get_lit(2); | |
129 | uint8_t PSENum = 2; | |
130 | if (arg_get_lit(3)) | |
131 | PSENum = 1; | |
132 | if (arg_get_lit(4)) | |
133 | PSENum = 2; | |
134 | bool APDULogging = arg_get_lit(5); | |
135 | bool decodeTLV = arg_get_lit(6); | |
136 | CLIParserFree(); | |
137 | ||
138 | SetAPDULogging(APDULogging); | |
139 | ||
140 | // exec | |
141 | uint8_t buf[APDU_RES_LEN] = {0}; | |
142 | size_t len = 0; | |
143 | uint16_t sw = 0; | |
144 | int res = EMVSelectPSE(activateField, leaveSignalON, PSENum, buf, sizeof(buf), &len, &sw); | |
145 | ||
146 | if (sw) | |
147 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
148 | ||
149 | if (res) | |
150 | return res; | |
151 | ||
152 | ||
153 | if (decodeTLV) | |
154 | TLVPrintFromBuffer(buf, len); | |
155 | ||
156 | return 0; | |
157 | } | |
158 | ||
159 | int CmdHFEMVGPO(const char *cmd) { | |
160 | ||
161 | return 0; | |
162 | } | |
163 | ||
164 | int CmdHFEMVReadRecord(const char *cmd) { | |
165 | ||
166 | return 0; | |
167 | } | |
168 | ||
169 | int CmdHFEMVAC(const char *cmd) { | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
174 | int CmdHFEMVGenerateChallenge(const char *cmd) { | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
179 | int CmdHFEMVInternalAuthenticate(const char *cmd) { | |
180 | ||
181 | return 0; | |
182 | } | |
183 | ||
184 | int UsageCmdHFEMVExec(void) { | |
185 | PrintAndLog("HELP : Executes EMV contactless transaction:\n"); | |
186 | PrintAndLog("Usage: hf emv exec [-s][-a][-t][-f][-v][-c][-x][-g]\n"); | |
187 | PrintAndLog(" Options:"); | |
188 | PrintAndLog(" -s : select card"); | |
189 | PrintAndLog(" -a : show APDU reqests and responses\n"); | |
190 | PrintAndLog(" -t : TLV decode results\n"); | |
191 | PrintAndLog(" -f : force search AID. Search AID instead of execute PPSE.\n"); | |
192 | PrintAndLog(" -v : transaction type - qVSDC or M/Chip.\n"); | |
193 | PrintAndLog(" -c : transaction type - qVSDC or M/Chip plus CDA (SDAD generation).\n"); | |
194 | PrintAndLog(" -x : transaction type - VSDC. For test only. Not a standart behavior.\n"); | |
195 | PrintAndLog(" -g : VISA. generate AC from GPO\n"); | |
196 | PrintAndLog("By default : transaction type - MSD.\n"); | |
197 | PrintAndLog("Samples:"); | |
198 | PrintAndLog(" hf emv exec -s -a -t -> execute MSD transaction"); | |
199 | PrintAndLog(" hf emv exec -s -a -t -c -> execute CDA transaction"); | |
200 | return 0; | |
201 | } | |
202 | ||
203 | #define TLV_ADD(tag, value)( tlvdb_add(tlvRoot, tlvdb_fixed(tag, sizeof(value) - 1, (const unsigned char *)value)) ) | |
204 | #define dreturn(n) {free(pdol_data_tlv);tlvdb_free(tlvSelect);tlvdb_free(tlvRoot);DropField();return n;} | |
205 | ||
206 | int CmdHFEMVExec(const char *cmd) { | |
207 | bool activateField = false; | |
208 | bool showAPDU = false; | |
209 | bool decodeTLV = false; | |
210 | bool forceSearch = false; | |
211 | enum TransactionType TrType = TT_MSD; | |
212 | bool GenACGPO = false; | |
213 | ||
214 | uint8_t buf[APDU_RES_LEN] = {0}; | |
215 | size_t len = 0; | |
216 | uint16_t sw = 0; | |
217 | uint8_t AID[APDU_AID_LEN] = {0}; | |
218 | size_t AIDlen = 0; | |
219 | uint8_t ODAiList[4096]; | |
220 | size_t ODAiListLen = 0; | |
221 | ||
222 | int res; | |
223 | ||
224 | struct tlvdb *tlvSelect = NULL; | |
225 | struct tlvdb *tlvRoot = NULL; | |
226 | struct tlv *pdol_data_tlv = NULL; | |
227 | ||
228 | if (strlen(cmd) < 1) { | |
229 | UsageCmdHFEMVExec(); | |
230 | return 0; | |
231 | } | |
232 | ||
233 | int cmdp = 0; | |
234 | while(param_getchar(cmd, cmdp) != 0x00) { | |
235 | char c = param_getchar(cmd, cmdp); | |
236 | if ((c == '-') && (param_getlength(cmd, cmdp) == 2)) | |
237 | switch (param_getchar_indx(cmd, 1, cmdp)) { | |
238 | case 'h': | |
239 | case 'H': | |
240 | UsageCmdHFEMVExec(); | |
241 | return 0; | |
242 | case 's': | |
243 | case 'S': | |
244 | activateField = true; | |
245 | break; | |
246 | case 'a': | |
247 | case 'A': | |
248 | showAPDU = true; | |
249 | break; | |
250 | case 't': | |
251 | case 'T': | |
252 | decodeTLV = true; | |
253 | break; | |
254 | case 'f': | |
255 | case 'F': | |
256 | forceSearch = true; | |
257 | break; | |
258 | case 'x': | |
259 | case 'X': | |
260 | TrType = TT_VSDC; | |
261 | break; | |
262 | case 'v': | |
263 | case 'V': | |
264 | TrType = TT_QVSDCMCHIP; | |
265 | break; | |
266 | case 'c': | |
267 | case 'C': | |
268 | TrType = TT_CDA; | |
269 | break; | |
270 | case 'g': | |
271 | case 'G': | |
272 | GenACGPO = true; | |
273 | break; | |
274 | default: | |
275 | PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp)); | |
276 | return 1; | |
277 | } | |
278 | cmdp++; | |
279 | } | |
280 | ||
281 | ||
282 | // init applets list tree | |
283 | const char *al = "Applets list"; | |
284 | tlvSelect = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); | |
285 | ||
286 | // Application Selection | |
287 | // https://www.openscdp.org/scripts/tutorial/emv/applicationselection.html | |
288 | if (!forceSearch) { | |
289 | // PPSE | |
290 | PrintAndLog("\n* PPSE."); | |
291 | SetAPDULogging(showAPDU); | |
292 | res = EMVSearchPSE(activateField, true, decodeTLV, tlvSelect); | |
293 | ||
294 | // check PPSE and select application id | |
295 | if (!res) { | |
296 | TLVPrintAIDlistFromSelectTLV(tlvSelect); | |
297 | EMVSelectApplication(tlvSelect, AID, &AIDlen); | |
298 | } | |
299 | } | |
300 | ||
301 | // Search | |
302 | if (!AIDlen) { | |
303 | PrintAndLog("\n* Search AID in list."); | |
304 | SetAPDULogging(false); | |
305 | if (EMVSearch(activateField, true, decodeTLV, tlvSelect)) { | |
306 | dreturn(2); | |
307 | } | |
308 | ||
309 | // check search and select application id | |
310 | TLVPrintAIDlistFromSelectTLV(tlvSelect); | |
311 | EMVSelectApplication(tlvSelect, AID, &AIDlen); | |
312 | } | |
313 | ||
314 | // Init TLV tree | |
315 | const char *alr = "Root terminal TLV tree"; | |
316 | tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); | |
317 | ||
318 | // check if we found EMV application on card | |
319 | if (!AIDlen) { | |
320 | PrintAndLog("Can't select AID. EMV AID not found"); | |
321 | dreturn(2); | |
322 | } | |
323 | ||
324 | // Select | |
325 | PrintAndLog("\n* Selecting AID:%s", sprint_hex_inrow(AID, AIDlen)); | |
326 | SetAPDULogging(showAPDU); | |
327 | res = EMVSelect(false, true, AID, AIDlen, buf, sizeof(buf), &len, &sw, tlvRoot); | |
328 | ||
329 | if (res) { | |
330 | PrintAndLog("Can't select AID (%d). Exit...", res); | |
331 | dreturn(3); | |
332 | } | |
333 | ||
334 | if (decodeTLV) | |
335 | TLVPrintFromBuffer(buf, len); | |
336 | PrintAndLog("* Selected."); | |
337 | ||
338 | PrintAndLog("\n* Init transaction parameters."); | |
339 | ||
340 | //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 | |
341 | char *qVSDC = "\x26\x00\x00\x00"; | |
342 | if (GenACGPO) { | |
343 | qVSDC = "\x26\x80\x00\x00"; | |
344 | } | |
345 | switch(TrType) { | |
346 | case TT_MSD: | |
347 | TLV_ADD(0x9F66, "\x86\x00\x00\x00"); // MSD | |
348 | break; | |
349 | // not standard for contactless. just for test. | |
350 | case TT_VSDC: | |
351 | TLV_ADD(0x9F66, "\x46\x00\x00\x00"); // VSDC | |
352 | break; | |
353 | case TT_QVSDCMCHIP: | |
354 | TLV_ADD(0x9F66, qVSDC); // qVSDC | |
355 | break; | |
356 | case TT_CDA: | |
357 | TLV_ADD(0x9F66, qVSDC); // qVSDC (VISA CDA not enabled) | |
358 | break; | |
359 | default: | |
360 | TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC | |
361 | break; | |
362 | } | |
363 | ||
364 | //9F02:(Amount, authorized (Numeric)) len:6 | |
365 | TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00"); | |
366 | //9F1A:(Terminal Country Code) len:2 | |
367 | TLV_ADD(0x9F1A, "ru"); | |
368 | //5F2A:(Transaction Currency Code) len:2 | |
369 | // USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999 | |
370 | TLV_ADD(0x5F2A, "\x09\x80"); | |
371 | //9A:(Transaction Date) len:3 | |
372 | TLV_ADD(0x9A, "\x00\x00\x00"); | |
373 | //9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash | |
374 | TLV_ADD(0x9C, "\x00"); | |
375 | // 9F37 Unpredictable Number len:4 | |
376 | TLV_ADD(0x9F37, "\x01\x02\x03\x04"); | |
377 | // 9F6A Unpredictable Number (MSD for UDOL) len:4 | |
378 | TLV_ADD(0x9F6A, "\x01\x02\x03\x04"); | |
379 | ||
380 | TLVPrintFromTLV(tlvRoot); // TODO delete!!! | |
381 | ||
382 | PrintAndLog("\n* Calc PDOL."); | |
383 | pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83); | |
384 | if (!pdol_data_tlv){ | |
385 | PrintAndLog("ERROR: can't create PDOL TLV."); | |
386 | dreturn(4); | |
387 | } | |
388 | ||
389 | size_t pdol_data_tlv_data_len; | |
390 | unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); | |
391 | if (!pdol_data_tlv_data) { | |
392 | PrintAndLog("ERROR: can't create PDOL data."); | |
393 | dreturn(4); | |
394 | } | |
395 | PrintAndLog("PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); | |
396 | ||
397 | PrintAndLog("\n* GPO."); | |
398 | res = EMVGPO(true, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); | |
399 | ||
400 | free(pdol_data_tlv_data); | |
401 | //free(pdol_data_tlv); --- free on exit. | |
402 | ||
403 | if (res) { | |
404 | PrintAndLog("GPO error(%d): %4x. Exit...", res, sw); | |
405 | dreturn(5); | |
406 | } | |
407 | ||
408 | // process response template format 1 [id:80 2b AIP + x4b AFL] and format 2 [id:77 TLV] | |
409 | if (buf[0] == 0x80) { | |
410 | if (decodeTLV){ | |
411 | PrintAndLog("GPO response format1:"); | |
412 | TLVPrintFromBuffer(buf, len); | |
413 | } | |
414 | ||
415 | if (len < 4 || (len - 4) % 4) { | |
416 | PrintAndLog("ERROR: GPO response format1 parsing error. length=%d", len); | |
417 | } else { | |
418 | // AIP | |
419 | struct tlvdb * f1AIP = tlvdb_fixed(0x82, 2, buf + 2); | |
420 | tlvdb_add(tlvRoot, f1AIP); | |
421 | if (decodeTLV){ | |
422 | PrintAndLog("\n* * Decode response format 1 (0x80) AIP and AFL:"); | |
423 | TLVPrintFromTLV(f1AIP); | |
424 | } | |
425 | ||
426 | // AFL | |
427 | struct tlvdb * f1AFL = tlvdb_fixed(0x94, len - 4, buf + 2 + 2); | |
428 | tlvdb_add(tlvRoot, f1AFL); | |
429 | if (decodeTLV) | |
430 | TLVPrintFromTLV(f1AFL); | |
431 | } | |
432 | } else { | |
433 | if (decodeTLV) | |
434 | TLVPrintFromBuffer(buf, len); | |
435 | } | |
436 | ||
437 | // extract PAN from track2 | |
438 | { | |
439 | const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL); | |
440 | if (!tlvdb_get(tlvRoot, 0x5a, NULL) && track2 && track2->len >= 8) { | |
441 | struct tlvdb *pan = GetPANFromTrack2(track2); | |
442 | if (pan) { | |
443 | tlvdb_add(tlvRoot, pan); | |
444 | ||
445 | const struct tlv *pantlv = tlvdb_get(tlvRoot, 0x5a, NULL); | |
446 | PrintAndLog("\n* * Extracted PAN from track2: %s", sprint_hex(pantlv->value, pantlv->len)); | |
447 | } else { | |
448 | PrintAndLog("\n* * WARNING: Can't extract PAN from track2."); | |
449 | } | |
450 | } | |
451 | } | |
452 | ||
453 | PrintAndLog("\n* Read records from AFL."); | |
454 | const struct tlv *AFL = tlvdb_get(tlvRoot, 0x94, NULL); | |
455 | if (!AFL || !AFL->len) { | |
456 | PrintAndLog("WARNING: AFL not found."); | |
457 | } | |
458 | ||
459 | while(AFL && AFL->len) { | |
460 | if (AFL->len % 4) { | |
461 | PrintAndLog("ERROR: Wrong AFL length: %d", AFL->len); | |
462 | break; | |
463 | } | |
464 | ||
465 | for (int i = 0; i < AFL->len / 4; i++) { | |
466 | uint8_t SFI = AFL->value[i * 4 + 0] >> 3; | |
467 | uint8_t SFIstart = AFL->value[i * 4 + 1]; | |
468 | uint8_t SFIend = AFL->value[i * 4 + 2]; | |
469 | uint8_t SFIoffline = AFL->value[i * 4 + 3]; | |
470 | ||
471 | PrintAndLog("* * SFI[%02x] start:%02x end:%02x offline:%02x", SFI, SFIstart, SFIend, SFIoffline); | |
472 | if (SFI == 0 || SFI == 31 || SFIstart == 0 || SFIstart > SFIend) { | |
473 | PrintAndLog("SFI ERROR! Skipped..."); | |
474 | continue; | |
475 | } | |
476 | ||
477 | for(int n = SFIstart; n <= SFIend; n++) { | |
478 | PrintAndLog("* * * SFI[%02x] %d", SFI, n); | |
479 | ||
480 | res = EMVReadRecord(true, SFI, n, buf, sizeof(buf), &len, &sw, tlvRoot); | |
481 | if (res) { | |
482 | PrintAndLog("ERROR SFI[%02x]. APDU error %4x", SFI, sw); | |
483 | continue; | |
484 | } | |
485 | ||
486 | if (decodeTLV) { | |
487 | TLVPrintFromBuffer(buf, len); | |
488 | PrintAndLog(""); | |
489 | } | |
490 | ||
491 | // Build Input list for Offline Data Authentication | |
492 | // EMV 4.3 book3 10.3, page 96 | |
493 | if (SFIoffline) { | |
494 | if (SFI < 11) { | |
495 | const unsigned char *abuf = buf; | |
496 | size_t elmlen = len; | |
497 | struct tlv e; | |
498 | if (tlv_parse_tl(&abuf, &elmlen, &e)) { | |
499 | memcpy(&ODAiList[ODAiListLen], &buf[len - elmlen], elmlen); | |
500 | ODAiListLen += elmlen; | |
501 | } else { | |
502 | PrintAndLog("ERROR SFI[%02x]. Creating input list for Offline Data Authentication error.", SFI); | |
503 | } | |
504 | } else { | |
505 | memcpy(&ODAiList[ODAiListLen], buf, len); | |
506 | ODAiListLen += len; | |
507 | } | |
508 | } | |
509 | } | |
510 | } | |
511 | ||
512 | break; | |
513 | } | |
514 | ||
515 | // copy Input list for Offline Data Authentication | |
516 | if (ODAiListLen) { | |
517 | struct tlvdb *oda = tlvdb_fixed(0x21, ODAiListLen, ODAiList); // not a standard tag | |
518 | tlvdb_add(tlvRoot, oda); | |
519 | PrintAndLog("* Input list for Offline Data Authentication added to TLV. len=%d \n", ODAiListLen); | |
520 | } | |
521 | ||
522 | // get AIP | |
523 | const struct tlv *AIPtlv = tlvdb_get(tlvRoot, 0x82, NULL); | |
524 | uint16_t AIP = AIPtlv->value[0] + AIPtlv->value[1] * 0x100; | |
525 | PrintAndLog("* * AIP=%04x", AIP); | |
526 | ||
527 | // SDA | |
528 | if (AIP & 0x0040) { | |
529 | PrintAndLog("\n* SDA"); | |
530 | trSDA(tlvRoot); | |
531 | } | |
532 | ||
533 | // DDA | |
534 | if (AIP & 0x0020) { | |
535 | PrintAndLog("\n* DDA"); | |
536 | trDDA(decodeTLV, tlvRoot); | |
537 | } | |
538 | ||
539 | // transaction check | |
540 | ||
541 | // qVSDC | |
542 | if (TrType == TT_QVSDCMCHIP|| TrType == TT_CDA){ | |
543 | // 9F26: Application Cryptogram | |
544 | const struct tlv *AC = tlvdb_get(tlvRoot, 0x9F26, NULL); | |
545 | if (AC) { | |
546 | PrintAndLog("\n--> qVSDC transaction."); | |
547 | PrintAndLog("* AC path"); | |
548 | ||
549 | // 9F36: Application Transaction Counter (ATC) | |
550 | const struct tlv *ATC = tlvdb_get(tlvRoot, 0x9F36, NULL); | |
551 | if (ATC) { | |
552 | ||
553 | // 9F10: Issuer Application Data - optional | |
554 | const struct tlv *IAD = tlvdb_get(tlvRoot, 0x9F10, NULL); | |
555 | ||
556 | // print AC data | |
557 | PrintAndLog("ATC: %s", sprint_hex(ATC->value, ATC->len)); | |
558 | PrintAndLog("AC: %s", sprint_hex(AC->value, AC->len)); | |
559 | if (IAD){ | |
560 | PrintAndLog("IAD: %s", sprint_hex(IAD->value, IAD->len)); | |
561 | ||
562 | if (IAD->len >= IAD->value[0] + 1) { | |
563 | PrintAndLog("\tKey index: 0x%02x", IAD->value[1]); | |
564 | PrintAndLog("\tCrypto ver: 0x%02x(%03d)", IAD->value[2], IAD->value[2]); | |
565 | PrintAndLog("\tCVR:", sprint_hex(&IAD->value[3], IAD->value[0] - 2)); | |
566 | struct tlvdb * cvr = tlvdb_fixed(0x20, IAD->value[0] - 2, &IAD->value[3]); | |
567 | TLVPrintFromTLVLev(cvr, 1); | |
568 | } | |
569 | } else { | |
570 | PrintAndLog("WARNING: IAD not found."); | |
571 | } | |
572 | ||
573 | } else { | |
574 | PrintAndLog("ERROR AC: Application Transaction Counter (ATC) not found."); | |
575 | } | |
576 | } | |
577 | } | |
578 | ||
579 | // Mastercard M/CHIP | |
580 | if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD && (TrType == TT_QVSDCMCHIP || TrType == TT_CDA)){ | |
581 | const struct tlv *CDOL1 = tlvdb_get(tlvRoot, 0x8c, NULL); | |
582 | if (CDOL1 && GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { // and m/chip transaction flag | |
583 | PrintAndLog("\n--> Mastercard M/Chip transaction."); | |
584 | ||
585 | PrintAndLog("* * Generate challenge"); | |
586 | res = EMVGenerateChallenge(true, buf, sizeof(buf), &len, &sw, tlvRoot); | |
587 | if (res) { | |
588 | PrintAndLog("ERROR GetChallenge. APDU error %4x", sw); | |
589 | dreturn(6); | |
590 | } | |
591 | if (len < 4) { | |
592 | PrintAndLog("ERROR GetChallenge. Wrong challenge length %d", len); | |
593 | dreturn(6); | |
594 | } | |
595 | ||
596 | // ICC Dynamic Number | |
597 | struct tlvdb * ICCDynN = tlvdb_fixed(0x9f4c, len, buf); | |
598 | tlvdb_add(tlvRoot, ICCDynN); | |
599 | if (decodeTLV){ | |
600 | PrintAndLog("\n* * ICC Dynamic Number:"); | |
601 | TLVPrintFromTLV(ICCDynN); | |
602 | } | |
603 | ||
604 | PrintAndLog("* * Calc CDOL1"); | |
605 | struct tlv *cdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x8c, NULL), tlvRoot, 0x01); // 0x01 - dummy tag | |
606 | if (!cdol_data_tlv){ | |
607 | PrintAndLog("ERROR: can't create CDOL1 TLV."); | |
608 | dreturn(6); | |
609 | } | |
610 | PrintAndLog("CDOL1 data[%d]: %s", cdol_data_tlv->len, sprint_hex(cdol_data_tlv->value, cdol_data_tlv->len)); | |
611 | ||
612 | PrintAndLog("* * AC1"); | |
613 | // EMVAC_TC + EMVAC_CDAREQ --- to get SDAD | |
614 | res = EMVAC(true, (TrType == TT_CDA) ? EMVAC_TC + EMVAC_CDAREQ : EMVAC_TC, (uint8_t *)cdol_data_tlv->value, cdol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); | |
615 | ||
616 | if (res) { | |
617 | PrintAndLog("AC1 error(%d): %4x. Exit...", res, sw); | |
618 | dreturn(7); | |
619 | } | |
620 | ||
621 | if (decodeTLV) | |
622 | TLVPrintFromBuffer(buf, len); | |
623 | ||
624 | // CDA | |
625 | PrintAndLog("\n* CDA:"); | |
626 | struct tlvdb *ac_tlv = tlvdb_parse_multi(buf, len); | |
627 | res = trCDA(tlvRoot, ac_tlv, pdol_data_tlv, cdol_data_tlv); | |
628 | if (res) { | |
629 | PrintAndLog("CDA error (%d)", res); | |
630 | } | |
631 | free(ac_tlv); | |
632 | free(cdol_data_tlv); | |
633 | ||
634 | PrintAndLog("\n* M/Chip transaction result:"); | |
635 | // 9F27: Cryptogram Information Data (CID) | |
636 | const struct tlv *CID = tlvdb_get(tlvRoot, 0x9F27, NULL); | |
637 | if (CID) { | |
638 | emv_tag_dump(CID, stdout, 0); | |
639 | PrintAndLog("------------------------------"); | |
640 | if (CID->len > 0) { | |
641 | switch(CID->value[0] & EMVAC_AC_MASK){ | |
642 | case EMVAC_AAC: | |
643 | PrintAndLog("Transaction DECLINED."); | |
644 | break; | |
645 | case EMVAC_TC: | |
646 | PrintAndLog("Transaction approved OFFLINE."); | |
647 | break; | |
648 | case EMVAC_ARQC: | |
649 | PrintAndLog("Transaction approved ONLINE."); | |
650 | break; | |
651 | default: | |
652 | PrintAndLog("ERROR: CID transaction code error %2x", CID->value[0] & EMVAC_AC_MASK); | |
653 | break; | |
654 | } | |
655 | } else { | |
656 | PrintAndLog("ERROR: Wrong CID length %d", CID->len); | |
657 | } | |
658 | } else { | |
659 | PrintAndLog("ERROR: CID(9F27) not found."); | |
660 | } | |
661 | ||
662 | } | |
663 | } | |
664 | ||
665 | // MSD | |
666 | if (AIP & 0x8000 && TrType == TT_MSD) { | |
667 | PrintAndLog("\n--> MSD transaction."); | |
668 | ||
669 | PrintAndLog("* MSD dCVV path. Check dCVV"); | |
670 | ||
671 | const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL); | |
672 | if (track2) { | |
673 | PrintAndLog("Track2: %s", sprint_hex(track2->value, track2->len)); | |
674 | ||
675 | struct tlvdb *dCVV = GetdCVVRawFromTrack2(track2); | |
676 | PrintAndLog("dCVV raw data:"); | |
677 | TLVPrintFromTLV(dCVV); | |
678 | ||
679 | if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { | |
680 | PrintAndLog("\n* Mastercard calculate UDOL"); | |
681 | ||
682 | // UDOL (9F69) | |
683 | const struct tlv *UDOL = tlvdb_get(tlvRoot, 0x9F69, NULL); | |
684 | // UDOL(9F69) default: 9F6A (Unpredictable number) 4 bytes | |
685 | const struct tlv defUDOL = { | |
686 | .tag = 0x01, | |
687 | .len = 3, | |
688 | .value = (uint8_t *)"\x9f\x6a\x04", | |
689 | }; | |
690 | if (!UDOL) | |
691 | PrintAndLog("Use default UDOL."); | |
692 | ||
693 | struct tlv *udol_data_tlv = dol_process(UDOL ? UDOL : &defUDOL, tlvRoot, 0x01); // 0x01 - dummy tag | |
694 | if (!udol_data_tlv){ | |
695 | PrintAndLog("ERROR: can't create UDOL TLV."); | |
696 | dreturn(8); | |
697 | } | |
698 | ||
699 | PrintAndLog("UDOL data[%d]: %s", udol_data_tlv->len, sprint_hex(udol_data_tlv->value, udol_data_tlv->len)); | |
700 | ||
701 | PrintAndLog("\n* Mastercard compute cryptographic checksum(UDOL)"); | |
702 | ||
703 | res = MSCComputeCryptoChecksum(true, (uint8_t *)udol_data_tlv->value, udol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); | |
704 | if (res) { | |
705 | PrintAndLog("ERROR Compute Crypto Checksum. APDU error %4x", sw); | |
706 | free(udol_data_tlv); | |
707 | dreturn(9); | |
708 | } | |
709 | ||
710 | if (decodeTLV) { | |
711 | TLVPrintFromBuffer(buf, len); | |
712 | PrintAndLog(""); | |
713 | } | |
714 | free(udol_data_tlv); | |
715 | ||
716 | } | |
717 | } else { | |
718 | PrintAndLog("ERROR MSD: Track2 data not found."); | |
719 | } | |
720 | } | |
721 | ||
722 | // DropField | |
723 | DropField(); | |
724 | ||
725 | // Destroy TLV's | |
726 | free(pdol_data_tlv); | |
727 | tlvdb_free(tlvSelect); | |
728 | tlvdb_free(tlvRoot); | |
729 | ||
730 | PrintAndLog("\n* Transaction completed."); | |
731 | ||
732 | return 0; | |
733 | } | |
734 | ||
735 | int CmdHFEMVTest(const char *cmd) { | |
736 | return ExecuteCryptoTests(true); | |
737 | } | |
738 | ||
739 | int CmdHelp(const char *Cmd); | |
740 | static command_t CommandTable[] = { | |
741 | {"help", CmdHelp, 1, "This help"}, | |
742 | {"exec", CmdHFEMVExec, 0, "Executes EMV contactless transaction."}, | |
743 | {"pse", CmdHFEMVPPSE, 0, "Execute PPSE. It selects 2PAY.SYS.DDF01 or 1PAY.SYS.DDF01 directory."}, | |
744 | {"search", CmdHFEMVSearch, 0, "Try to select all applets from applets list and print installed applets."}, | |
745 | {"select", CmdHFEMVSelect, 0, "Select applet."}, | |
746 | {"gpo", CmdHFEMVGPO, 0, "Execute GetProcessingOptions."}, | |
747 | {"readrec", CmdHFEMVReadRecord, 0, "Read files from card."}, | |
748 | {"genac", CmdHFEMVAC, 0, "Generate ApplicationCryptogram."}, | |
749 | {"challenge", CmdHFEMVGenerateChallenge, 0, "Generate challenge."}, | |
750 | {"intauth", CmdHFEMVInternalAuthenticate, 0, "Internal authentication."}, | |
751 | {"test", CmdHFEMVTest, 0, "Crypto logic test."}, | |
752 | {NULL, NULL, 0, NULL} | |
753 | }; | |
754 | ||
755 | int CmdHFEMV(const char *Cmd) { | |
756 | CmdsParse(CommandTable, Cmd); | |
757 | return 0; | |
758 | } | |
759 | ||
760 | int CmdHelp(const char *Cmd) { | |
761 | CmdsHelp(CommandTable); | |
762 | return 0; | |
763 | } |