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3c5fce2b OM |
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 | ||
3ded0f97 | 11 | #include <ctype.h> |
3c5fce2b | 12 | #include "cmdemv.h" |
d03fb293 | 13 | #include "test/cryptotest.h" |
6d31653c | 14 | #include "cliparser/cliparser.h" |
3c5fce2b | 15 | |
3c5fce2b OM |
16 | int CmdHFEMVSelect(const char *cmd) { |
17 | uint8_t data[APDU_AID_LEN] = {0}; | |
18 | int datalen = 0; | |
3c5fce2b | 19 | |
3c5fce2b | 20 | |
3668df05 | 21 | CLIParserInit("hf 14a select", |
22 | "Executes select applet command", | |
a4662ca9 | 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"); |
3c5fce2b | 24 | |
3668df05 | 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); | |
7d4ba60e | 40 | CLIGetStrBLessWithReturn(5, data, &datalen, 0); |
3668df05 | 41 | CLIParserFree(); |
42 | ||
43 | SetAPDULogging(APDULogging); | |
3c5fce2b OM |
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 | ||
3c5fce2b OM |
63 | int CmdHFEMVSearch(const char *cmd) { |
64 | ||
6d31653c | 65 | CLIParserInit("hf 14a select", |
66 | "Tries to select all applets from applet list:\n", | |
a4662ca9 | 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"); |
6d31653c | 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); | |
3c5fce2b | 78 | |
6d31653c | 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); | |
3668df05 | 83 | CLIParserFree(); |
6d31653c | 84 | |
85 | SetAPDULogging(APDULogging); | |
3c5fce2b | 86 | |
3c5fce2b OM |
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 | ||
3c5fce2b OM |
108 | int CmdHFEMVPPSE(const char *cmd) { |
109 | ||
a4662ca9 | 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"); | |
3c5fce2b | 114 | |
a4662ca9 | 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); | |
3c5fce2b OM |
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 | ||
a4662ca9 | 159 | int CmdHFEMVGPO(const char *cmd) { |
160 | ||
161 | } | |
162 | ||
163 | int CmdHFEMVReadRecord(const char *cmd) { | |
164 | ||
165 | } | |
166 | ||
167 | int CmdHFEMVAC(const char *cmd) { | |
168 | ||
169 | } | |
170 | ||
171 | int CmdHFEMVGenerateChallenge(const char *cmd) { | |
172 | ||
173 | } | |
174 | ||
175 | int CmdHFEMVInternalAuthenticate(const char *cmd) { | |
176 | ||
177 | } | |
178 | ||
3c5fce2b OM |
179 | int UsageCmdHFEMVExec(void) { |
180 | PrintAndLog("HELP : Executes EMV contactless transaction:\n"); | |
d03fb293 | 181 | PrintAndLog("Usage: hf emv exec [-s][-a][-t][-f][-v][-c][-x][-g]\n"); |
3c5fce2b OM |
182 | PrintAndLog(" Options:"); |
183 | PrintAndLog(" -s : select card"); | |
184 | PrintAndLog(" -a : show APDU reqests and responses\n"); | |
185 | PrintAndLog(" -t : TLV decode results\n"); | |
186 | PrintAndLog(" -f : force search AID. Search AID instead of execute PPSE.\n"); | |
10d4f823 | 187 | PrintAndLog(" -v : transaction type - qVSDC or M/Chip.\n"); |
188 | PrintAndLog(" -c : transaction type - qVSDC or M/Chip plus CDA (SDAD generation).\n"); | |
189 | PrintAndLog(" -x : transaction type - VSDC. For test only. Not a standart behavior.\n"); | |
d03fb293 | 190 | PrintAndLog(" -g : VISA. generate AC from GPO\n"); |
10d4f823 | 191 | PrintAndLog("By default : transaction type - MSD.\n"); |
3c5fce2b | 192 | PrintAndLog("Samples:"); |
d03fb293 OM |
193 | PrintAndLog(" hf emv exec -s -a -t -> execute MSD transaction"); |
194 | PrintAndLog(" hf emv exec -s -a -t -c -> execute CDA transaction"); | |
3c5fce2b OM |
195 | return 0; |
196 | } | |
197 | ||
198 | #define TLV_ADD(tag, value)( tlvdb_add(tlvRoot, tlvdb_fixed(tag, sizeof(value) - 1, (const unsigned char *)value)) ) | |
d03fb293 | 199 | #define dreturn(n) {free(pdol_data_tlv);tlvdb_free(tlvSelect);tlvdb_free(tlvRoot);DropField();return n;} |
3c5fce2b OM |
200 | |
201 | int CmdHFEMVExec(const char *cmd) { | |
202 | bool activateField = false; | |
203 | bool showAPDU = false; | |
204 | bool decodeTLV = false; | |
205 | bool forceSearch = false; | |
10d4f823 | 206 | enum TransactionType TrType = TT_MSD; |
d03fb293 | 207 | bool GenACGPO = false; |
3c5fce2b OM |
208 | |
209 | uint8_t buf[APDU_RES_LEN] = {0}; | |
210 | size_t len = 0; | |
211 | uint16_t sw = 0; | |
212 | uint8_t AID[APDU_AID_LEN] = {0}; | |
213 | size_t AIDlen = 0; | |
d03fb293 OM |
214 | uint8_t ODAiList[4096]; |
215 | size_t ODAiListLen = 0; | |
3c5fce2b OM |
216 | |
217 | int res; | |
218 | ||
d03fb293 OM |
219 | struct tlvdb *tlvSelect = NULL; |
220 | struct tlvdb *tlvRoot = NULL; | |
221 | struct tlv *pdol_data_tlv = NULL; | |
222 | ||
3c5fce2b OM |
223 | if (strlen(cmd) < 1) { |
224 | UsageCmdHFEMVExec(); | |
225 | return 0; | |
226 | } | |
227 | ||
228 | int cmdp = 0; | |
229 | while(param_getchar(cmd, cmdp) != 0x00) { | |
230 | char c = param_getchar(cmd, cmdp); | |
231 | if ((c == '-') && (param_getlength(cmd, cmdp) == 2)) | |
232 | switch (param_getchar_indx(cmd, 1, cmdp)) { | |
233 | case 'h': | |
234 | case 'H': | |
7a7afeba | 235 | UsageCmdHFEMVExec(); |
3c5fce2b OM |
236 | return 0; |
237 | case 's': | |
238 | case 'S': | |
239 | activateField = true; | |
240 | break; | |
241 | case 'a': | |
242 | case 'A': | |
243 | showAPDU = true; | |
244 | break; | |
245 | case 't': | |
246 | case 'T': | |
247 | decodeTLV = true; | |
248 | break; | |
249 | case 'f': | |
250 | case 'F': | |
251 | forceSearch = true; | |
252 | break; | |
10d4f823 | 253 | case 'x': |
254 | case 'X': | |
255 | TrType = TT_VSDC; | |
256 | break; | |
257 | case 'v': | |
258 | case 'V': | |
259 | TrType = TT_QVSDCMCHIP; | |
260 | break; | |
261 | case 'c': | |
262 | case 'C': | |
263 | TrType = TT_CDA; | |
264 | break; | |
d03fb293 OM |
265 | case 'g': |
266 | case 'G': | |
267 | GenACGPO = true; | |
268 | break; | |
3c5fce2b OM |
269 | default: |
270 | PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp)); | |
271 | return 1; | |
272 | } | |
273 | cmdp++; | |
274 | } | |
275 | ||
276 | ||
277 | // init applets list tree | |
3c5fce2b OM |
278 | const char *al = "Applets list"; |
279 | tlvSelect = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); | |
280 | ||
281 | // Application Selection | |
282 | // https://www.openscdp.org/scripts/tutorial/emv/applicationselection.html | |
283 | if (!forceSearch) { | |
284 | // PPSE | |
285 | PrintAndLog("\n* PPSE."); | |
286 | SetAPDULogging(showAPDU); | |
287 | res = EMVSearchPSE(activateField, true, decodeTLV, tlvSelect); | |
288 | ||
289 | // check PPSE and select application id | |
290 | if (!res) { | |
291 | TLVPrintAIDlistFromSelectTLV(tlvSelect); | |
292 | EMVSelectApplication(tlvSelect, AID, &AIDlen); | |
293 | } | |
294 | } | |
295 | ||
296 | // Search | |
297 | if (!AIDlen) { | |
298 | PrintAndLog("\n* Search AID in list."); | |
299 | SetAPDULogging(false); | |
300 | if (EMVSearch(activateField, true, decodeTLV, tlvSelect)) { | |
d03fb293 | 301 | dreturn(2); |
3c5fce2b OM |
302 | } |
303 | ||
304 | // check search and select application id | |
305 | TLVPrintAIDlistFromSelectTLV(tlvSelect); | |
306 | EMVSelectApplication(tlvSelect, AID, &AIDlen); | |
307 | } | |
308 | ||
309 | // Init TLV tree | |
3c5fce2b OM |
310 | const char *alr = "Root terminal TLV tree"; |
311 | tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); | |
312 | ||
313 | // check if we found EMV application on card | |
314 | if (!AIDlen) { | |
315 | PrintAndLog("Can't select AID. EMV AID not found"); | |
d03fb293 | 316 | dreturn(2); |
3c5fce2b OM |
317 | } |
318 | ||
319 | // Select | |
320 | PrintAndLog("\n* Selecting AID:%s", sprint_hex_inrow(AID, AIDlen)); | |
321 | SetAPDULogging(showAPDU); | |
322 | res = EMVSelect(false, true, AID, AIDlen, buf, sizeof(buf), &len, &sw, tlvRoot); | |
323 | ||
324 | if (res) { | |
325 | PrintAndLog("Can't select AID (%d). Exit...", res); | |
d03fb293 | 326 | dreturn(3); |
3c5fce2b OM |
327 | } |
328 | ||
329 | if (decodeTLV) | |
330 | TLVPrintFromBuffer(buf, len); | |
331 | PrintAndLog("* Selected."); | |
332 | ||
3c5fce2b OM |
333 | PrintAndLog("\n* Init transaction parameters."); |
334 | ||
335 | //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 | |
d03fb293 OM |
336 | char *qVSDC = "\x26\x00\x00\x00"; |
337 | if (GenACGPO) { | |
338 | qVSDC = "\x26\x80\x00\x00"; | |
339 | } | |
10d4f823 | 340 | switch(TrType) { |
341 | case TT_MSD: | |
342 | TLV_ADD(0x9F66, "\x86\x00\x00\x00"); // MSD | |
343 | break; | |
d03fb293 | 344 | // not standard for contactless. just for test. |
10d4f823 | 345 | case TT_VSDC: |
346 | TLV_ADD(0x9F66, "\x46\x00\x00\x00"); // VSDC | |
347 | break; | |
348 | case TT_QVSDCMCHIP: | |
d03fb293 | 349 | TLV_ADD(0x9F66, qVSDC); // qVSDC |
10d4f823 | 350 | break; |
351 | case TT_CDA: | |
d03fb293 | 352 | TLV_ADD(0x9F66, qVSDC); // qVSDC (VISA CDA not enabled) |
10d4f823 | 353 | break; |
354 | default: | |
355 | TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC | |
356 | break; | |
357 | } | |
d03fb293 OM |
358 | |
359 | //9F02:(Amount, authorized (Numeric)) len:6 | |
3c5fce2b OM |
360 | TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00"); |
361 | //9F1A:(Terminal Country Code) len:2 | |
362 | TLV_ADD(0x9F1A, "ru"); | |
363 | //5F2A:(Transaction Currency Code) len:2 | |
364 | // USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999 | |
365 | TLV_ADD(0x5F2A, "\x09\x80"); | |
366 | //9A:(Transaction Date) len:3 | |
367 | TLV_ADD(0x9A, "\x00\x00\x00"); | |
368 | //9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash | |
369 | TLV_ADD(0x9C, "\x00"); | |
370 | // 9F37 Unpredictable Number len:4 | |
371 | TLV_ADD(0x9F37, "\x01\x02\x03\x04"); | |
66efdc1f | 372 | // 9F6A Unpredictable Number (MSD for UDOL) len:4 |
373 | TLV_ADD(0x9F6A, "\x01\x02\x03\x04"); | |
3c5fce2b | 374 | |
66efdc1f | 375 | TLVPrintFromTLV(tlvRoot); // TODO delete!!! |
3c5fce2b OM |
376 | |
377 | PrintAndLog("\n* Calc PDOL."); | |
d03fb293 | 378 | pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83); |
3c5fce2b OM |
379 | if (!pdol_data_tlv){ |
380 | PrintAndLog("ERROR: can't create PDOL TLV."); | |
d03fb293 | 381 | dreturn(4); |
3c5fce2b OM |
382 | } |
383 | ||
384 | size_t pdol_data_tlv_data_len; | |
385 | unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); | |
386 | if (!pdol_data_tlv_data) { | |
387 | PrintAndLog("ERROR: can't create PDOL data."); | |
d03fb293 | 388 | dreturn(4); |
3c5fce2b OM |
389 | } |
390 | PrintAndLog("PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); | |
391 | ||
3c5fce2b OM |
392 | PrintAndLog("\n* GPO."); |
393 | res = EMVGPO(true, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); | |
394 | ||
10d4f823 | 395 | free(pdol_data_tlv_data); |
d03fb293 | 396 | //free(pdol_data_tlv); --- free on exit. |
3c5fce2b OM |
397 | |
398 | if (res) { | |
399 | PrintAndLog("GPO error(%d): %4x. Exit...", res, sw); | |
d03fb293 | 400 | dreturn(5); |
3c5fce2b OM |
401 | } |
402 | ||
403 | // process response template format 1 [id:80 2b AIP + x4b AFL] and format 2 [id:77 TLV] | |
404 | if (buf[0] == 0x80) { | |
3c5fce2b OM |
405 | if (decodeTLV){ |
406 | PrintAndLog("GPO response format1:"); | |
407 | TLVPrintFromBuffer(buf, len); | |
408 | } | |
3c5fce2b | 409 | |
66efdc1f | 410 | if (len < 4 || (len - 4) % 4) { |
411 | PrintAndLog("ERROR: GPO response format1 parsing error. length=%d", len); | |
412 | } else { | |
413 | // AIP | |
414 | struct tlvdb * f1AIP = tlvdb_fixed(0x82, 2, buf + 2); | |
415 | tlvdb_add(tlvRoot, f1AIP); | |
416 | if (decodeTLV){ | |
417 | PrintAndLog("\n* * Decode response format 1 (0x80) AIP and AFL:"); | |
418 | TLVPrintFromTLV(f1AIP); | |
419 | } | |
420 | ||
421 | // AFL | |
422 | struct tlvdb * f1AFL = tlvdb_fixed(0x94, len - 4, buf + 2 + 2); | |
423 | tlvdb_add(tlvRoot, f1AFL); | |
424 | if (decodeTLV) | |
425 | TLVPrintFromTLV(f1AFL); | |
426 | } | |
427 | } else { | |
3c5fce2b OM |
428 | if (decodeTLV) |
429 | TLVPrintFromBuffer(buf, len); | |
430 | } | |
431 | ||
66efdc1f | 432 | // extract PAN from track2 |
433 | { | |
434 | const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL); | |
435 | if (!tlvdb_get(tlvRoot, 0x5a, NULL) && track2 && track2->len >= 8) { | |
436 | struct tlvdb *pan = GetPANFromTrack2(track2); | |
437 | if (pan) { | |
438 | tlvdb_add(tlvRoot, pan); | |
439 | ||
440 | const struct tlv *pantlv = tlvdb_get(tlvRoot, 0x5a, NULL); | |
441 | PrintAndLog("\n* * Extracted PAN from track2: %s", sprint_hex(pantlv->value, pantlv->len)); | |
442 | } else { | |
443 | PrintAndLog("\n* * WARNING: Can't extract PAN from track2."); | |
444 | } | |
445 | } | |
446 | } | |
447 | ||
3c5fce2b OM |
448 | PrintAndLog("\n* Read records from AFL."); |
449 | const struct tlv *AFL = tlvdb_get(tlvRoot, 0x94, NULL); | |
450 | if (!AFL || !AFL->len) { | |
451 | PrintAndLog("WARNING: AFL not found."); | |
452 | } | |
453 | ||
454 | while(AFL && AFL->len) { | |
455 | if (AFL->len % 4) { | |
456 | PrintAndLog("ERROR: Wrong AFL length: %d", AFL->len); | |
457 | break; | |
458 | } | |
459 | ||
460 | for (int i = 0; i < AFL->len / 4; i++) { | |
461 | uint8_t SFI = AFL->value[i * 4 + 0] >> 3; | |
462 | uint8_t SFIstart = AFL->value[i * 4 + 1]; | |
463 | uint8_t SFIend = AFL->value[i * 4 + 2]; | |
464 | uint8_t SFIoffline = AFL->value[i * 4 + 3]; | |
465 | ||
466 | PrintAndLog("* * SFI[%02x] start:%02x end:%02x offline:%02x", SFI, SFIstart, SFIend, SFIoffline); | |
467 | if (SFI == 0 || SFI == 31 || SFIstart == 0 || SFIstart > SFIend) { | |
468 | PrintAndLog("SFI ERROR! Skipped..."); | |
469 | continue; | |
470 | } | |
471 | ||
472 | for(int n = SFIstart; n <= SFIend; n++) { | |
473 | PrintAndLog("* * * SFI[%02x] %d", SFI, n); | |
474 | ||
475 | res = EMVReadRecord(true, SFI, n, buf, sizeof(buf), &len, &sw, tlvRoot); | |
476 | if (res) { | |
477 | PrintAndLog("ERROR SFI[%02x]. APDU error %4x", SFI, sw); | |
478 | continue; | |
479 | } | |
480 | ||
481 | if (decodeTLV) { | |
482 | TLVPrintFromBuffer(buf, len); | |
483 | PrintAndLog(""); | |
484 | } | |
485 | ||
d03fb293 OM |
486 | // Build Input list for Offline Data Authentication |
487 | // EMV 4.3 book3 10.3, page 96 | |
3c5fce2b | 488 | if (SFIoffline) { |
d03fb293 OM |
489 | if (SFI < 11) { |
490 | const unsigned char *abuf = buf; | |
491 | size_t elmlen = len; | |
492 | struct tlv e; | |
493 | if (tlv_parse_tl(&abuf, &elmlen, &e)) { | |
494 | memcpy(&ODAiList[ODAiListLen], &buf[len - elmlen], elmlen); | |
495 | ODAiListLen += elmlen; | |
496 | } else { | |
497 | PrintAndLog("ERROR SFI[%02x]. Creating input list for Offline Data Authentication error.", SFI); | |
498 | } | |
499 | } else { | |
500 | memcpy(&ODAiList[ODAiListLen], buf, len); | |
501 | ODAiListLen += len; | |
502 | } | |
3c5fce2b OM |
503 | } |
504 | } | |
505 | } | |
506 | ||
507 | break; | |
508 | } | |
509 | ||
d03fb293 OM |
510 | // copy Input list for Offline Data Authentication |
511 | if (ODAiListLen) { | |
512 | struct tlvdb *oda = tlvdb_fixed(0x21, ODAiListLen, ODAiList); // not a standard tag | |
513 | tlvdb_add(tlvRoot, oda); | |
514 | PrintAndLog("* Input list for Offline Data Authentication added to TLV. len=%d \n", ODAiListLen); | |
515 | } | |
516 | ||
10d4f823 | 517 | // get AIP |
66efdc1f | 518 | const struct tlv *AIPtlv = tlvdb_get(tlvRoot, 0x82, NULL); |
519 | uint16_t AIP = AIPtlv->value[0] + AIPtlv->value[1] * 0x100; | |
10d4f823 | 520 | PrintAndLog("* * AIP=%04x", AIP); |
66efdc1f | 521 | |
10d4f823 | 522 | // SDA |
523 | if (AIP & 0x0040) { | |
524 | PrintAndLog("\n* SDA"); | |
d03fb293 | 525 | trSDA(tlvRoot); |
10d4f823 | 526 | } |
527 | ||
528 | // DDA | |
529 | if (AIP & 0x0020) { | |
530 | PrintAndLog("\n* DDA"); | |
d03fb293 | 531 | trDDA(decodeTLV, tlvRoot); |
10d4f823 | 532 | } |
533 | ||
534 | // transaction check | |
535 | ||
66efdc1f | 536 | // qVSDC |
10d4f823 | 537 | if (TrType == TT_QVSDCMCHIP|| TrType == TT_CDA){ |
66efdc1f | 538 | // 9F26: Application Cryptogram |
539 | const struct tlv *AC = tlvdb_get(tlvRoot, 0x9F26, NULL); | |
540 | if (AC) { | |
541 | PrintAndLog("\n--> qVSDC transaction."); | |
542 | PrintAndLog("* AC path"); | |
543 | ||
544 | // 9F36: Application Transaction Counter (ATC) | |
545 | const struct tlv *ATC = tlvdb_get(tlvRoot, 0x9F36, NULL); | |
546 | if (ATC) { | |
547 | ||
548 | // 9F10: Issuer Application Data - optional | |
549 | const struct tlv *IAD = tlvdb_get(tlvRoot, 0x9F10, NULL); | |
550 | ||
551 | // print AC data | |
552 | PrintAndLog("ATC: %s", sprint_hex(ATC->value, ATC->len)); | |
553 | PrintAndLog("AC: %s", sprint_hex(AC->value, AC->len)); | |
554 | if (IAD){ | |
555 | PrintAndLog("IAD: %s", sprint_hex(IAD->value, IAD->len)); | |
556 | ||
557 | if (IAD->len >= IAD->value[0] + 1) { | |
558 | PrintAndLog("\tKey index: 0x%02x", IAD->value[1]); | |
559 | PrintAndLog("\tCrypto ver: 0x%02x(%03d)", IAD->value[2], IAD->value[2]); | |
560 | PrintAndLog("\tCVR:", sprint_hex(&IAD->value[3], IAD->value[0] - 2)); | |
561 | struct tlvdb * cvr = tlvdb_fixed(0x20, IAD->value[0] - 2, &IAD->value[3]); | |
562 | TLVPrintFromTLVLev(cvr, 1); | |
563 | } | |
564 | } else { | |
565 | PrintAndLog("WARNING: IAD not found."); | |
566 | } | |
567 | ||
568 | } else { | |
569 | PrintAndLog("ERROR AC: Application Transaction Counter (ATC) not found."); | |
570 | } | |
571 | } | |
572 | } | |
573 | ||
10d4f823 | 574 | // Mastercard M/CHIP |
575 | if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD && (TrType == TT_QVSDCMCHIP || TrType == TT_CDA)){ | |
66efdc1f | 576 | const struct tlv *CDOL1 = tlvdb_get(tlvRoot, 0x8c, NULL); |
577 | if (CDOL1 && GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { // and m/chip transaction flag | |
10d4f823 | 578 | PrintAndLog("\n--> Mastercard M/Chip transaction."); |
579 | ||
580 | PrintAndLog("* * Generate challenge"); | |
581 | res = EMVGenerateChallenge(true, buf, sizeof(buf), &len, &sw, tlvRoot); | |
582 | if (res) { | |
583 | PrintAndLog("ERROR GetChallenge. APDU error %4x", sw); | |
d03fb293 | 584 | dreturn(6); |
10d4f823 | 585 | } |
586 | if (len < 4) { | |
587 | PrintAndLog("ERROR GetChallenge. Wrong challenge length %d", len); | |
d03fb293 | 588 | dreturn(6); |
10d4f823 | 589 | } |
590 | ||
591 | // ICC Dynamic Number | |
592 | struct tlvdb * ICCDynN = tlvdb_fixed(0x9f4c, len, buf); | |
593 | tlvdb_add(tlvRoot, ICCDynN); | |
594 | if (decodeTLV){ | |
595 | PrintAndLog("\n* * ICC Dynamic Number:"); | |
596 | TLVPrintFromTLV(ICCDynN); | |
597 | } | |
598 | ||
599 | PrintAndLog("* * Calc CDOL1"); | |
600 | struct tlv *cdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x8c, NULL), tlvRoot, 0x01); // 0x01 - dummy tag | |
601 | if (!cdol_data_tlv){ | |
602 | PrintAndLog("ERROR: can't create CDOL1 TLV."); | |
d03fb293 | 603 | dreturn(6); |
10d4f823 | 604 | } |
605 | PrintAndLog("CDOL1 data[%d]: %s", cdol_data_tlv->len, sprint_hex(cdol_data_tlv->value, cdol_data_tlv->len)); | |
606 | ||
607 | PrintAndLog("* * AC1"); | |
608 | // EMVAC_TC + EMVAC_CDAREQ --- to get SDAD | |
609 | 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); | |
610 | ||
10d4f823 | 611 | if (res) { |
612 | PrintAndLog("AC1 error(%d): %4x. Exit...", res, sw); | |
d03fb293 | 613 | dreturn(7); |
10d4f823 | 614 | } |
615 | ||
616 | if (decodeTLV) | |
617 | TLVPrintFromBuffer(buf, len); | |
618 | ||
d03fb293 OM |
619 | // CDA |
620 | PrintAndLog("\n* CDA:"); | |
621 | struct tlvdb *ac_tlv = tlvdb_parse_multi(buf, len); | |
622 | res = trCDA(tlvRoot, ac_tlv, pdol_data_tlv, cdol_data_tlv); | |
623 | if (res) { | |
624 | PrintAndLog("CDA error (%d)", res); | |
625 | } | |
626 | free(ac_tlv); | |
627 | free(cdol_data_tlv); | |
628 | ||
629 | PrintAndLog("\n* M/Chip transaction result:"); | |
10d4f823 | 630 | // 9F27: Cryptogram Information Data (CID) |
631 | const struct tlv *CID = tlvdb_get(tlvRoot, 0x9F27, NULL); | |
632 | if (CID) { | |
633 | emv_tag_dump(CID, stdout, 0); | |
634 | PrintAndLog("------------------------------"); | |
635 | if (CID->len > 0) { | |
636 | switch(CID->value[0] & EMVAC_AC_MASK){ | |
637 | case EMVAC_AAC: | |
638 | PrintAndLog("Transaction DECLINED."); | |
639 | break; | |
640 | case EMVAC_TC: | |
641 | PrintAndLog("Transaction approved OFFLINE."); | |
642 | break; | |
643 | case EMVAC_ARQC: | |
644 | PrintAndLog("Transaction approved ONLINE."); | |
645 | break; | |
646 | default: | |
647 | PrintAndLog("ERROR: CID transaction code error %2x", CID->value[0] & EMVAC_AC_MASK); | |
648 | break; | |
649 | } | |
650 | } else { | |
651 | PrintAndLog("ERROR: Wrong CID length %d", CID->len); | |
652 | } | |
653 | } else { | |
654 | PrintAndLog("ERROR: CID(9F27) not found."); | |
655 | } | |
66efdc1f | 656 | |
657 | } | |
658 | } | |
659 | ||
660 | // MSD | |
10d4f823 | 661 | if (AIP & 0x8000 && TrType == TT_MSD) { |
66efdc1f | 662 | PrintAndLog("\n--> MSD transaction."); |
663 | ||
66efdc1f | 664 | PrintAndLog("* MSD dCVV path. Check dCVV"); |
665 | ||
666 | const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL); | |
667 | if (track2) { | |
668 | PrintAndLog("Track2: %s", sprint_hex(track2->value, track2->len)); | |
669 | ||
670 | struct tlvdb *dCVV = GetdCVVRawFromTrack2(track2); | |
671 | PrintAndLog("dCVV raw data:"); | |
672 | TLVPrintFromTLV(dCVV); | |
673 | ||
674 | if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { | |
675 | PrintAndLog("\n* Mastercard calculate UDOL"); | |
676 | ||
677 | // UDOL (9F69) | |
678 | const struct tlv *UDOL = tlvdb_get(tlvRoot, 0x9F69, NULL); | |
679 | // UDOL(9F69) default: 9F6A (Unpredictable number) 4 bytes | |
680 | const struct tlv defUDOL = { | |
681 | .tag = 0x01, | |
682 | .len = 3, | |
683 | .value = (uint8_t *)"\x9f\x6a\x04", | |
684 | }; | |
685 | if (!UDOL) | |
686 | PrintAndLog("Use default UDOL."); | |
687 | ||
10d4f823 | 688 | struct tlv *udol_data_tlv = dol_process(UDOL ? UDOL : &defUDOL, tlvRoot, 0x01); // 0x01 - dummy tag |
66efdc1f | 689 | if (!udol_data_tlv){ |
690 | PrintAndLog("ERROR: can't create UDOL TLV."); | |
d03fb293 | 691 | dreturn(8); |
66efdc1f | 692 | } |
66efdc1f | 693 | |
78528074 | 694 | PrintAndLog("UDOL data[%d]: %s", udol_data_tlv->len, sprint_hex(udol_data_tlv->value, udol_data_tlv->len)); |
66efdc1f | 695 | |
696 | PrintAndLog("\n* Mastercard compute cryptographic checksum(UDOL)"); | |
697 | ||
78528074 | 698 | res = MSCComputeCryptoChecksum(true, (uint8_t *)udol_data_tlv->value, udol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); |
66efdc1f | 699 | if (res) { |
700 | PrintAndLog("ERROR Compute Crypto Checksum. APDU error %4x", sw); | |
d03fb293 OM |
701 | free(udol_data_tlv); |
702 | dreturn(9); | |
66efdc1f | 703 | } |
704 | ||
705 | if (decodeTLV) { | |
706 | TLVPrintFromBuffer(buf, len); | |
707 | PrintAndLog(""); | |
708 | } | |
d03fb293 | 709 | free(udol_data_tlv); |
66efdc1f | 710 | |
711 | } | |
712 | } else { | |
713 | PrintAndLog("ERROR MSD: Track2 data not found."); | |
714 | } | |
715 | } | |
d03fb293 | 716 | |
3c5fce2b OM |
717 | // DropField |
718 | DropField(); | |
719 | ||
720 | // Destroy TLV's | |
d03fb293 | 721 | free(pdol_data_tlv); |
3c5fce2b OM |
722 | tlvdb_free(tlvSelect); |
723 | tlvdb_free(tlvRoot); | |
724 | ||
725 | PrintAndLog("\n* Transaction completed."); | |
726 | ||
727 | return 0; | |
728 | } | |
729 | ||
d03fb293 OM |
730 | int CmdHFEMVTest(const char *cmd) { |
731 | return ExecuteCryptoTests(true); | |
732 | } | |
733 | ||
3c5fce2b OM |
734 | int CmdHelp(const char *Cmd); |
735 | static command_t CommandTable[] = { | |
736 | {"help", CmdHelp, 1, "This help"}, | |
737 | {"exec", CmdHFEMVExec, 0, "Executes EMV contactless transaction."}, | |
738 | {"pse", CmdHFEMVPPSE, 0, "Execute PPSE. It selects 2PAY.SYS.DDF01 or 1PAY.SYS.DDF01 directory."}, | |
739 | {"search", CmdHFEMVSearch, 0, "Try to select all applets from applets list and print installed applets."}, | |
740 | {"select", CmdHFEMVSelect, 0, "Select applet."}, | |
d03fb293 | 741 | {"test", CmdHFEMVTest, 0, "Crypto logic test."}, |
3c5fce2b OM |
742 | {NULL, NULL, 0, NULL} |
743 | }; | |
744 | ||
745 | int CmdHFEMV(const char *Cmd) { | |
746 | CmdsParse(CommandTable, Cmd); | |
747 | return 0; | |
748 | } | |
749 | ||
750 | int CmdHelp(const char *Cmd) { | |
751 | CmdsHelp(CommandTable); | |
752 | return 0; | |
753 | } |