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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 | CLIGetStrWithReturn(5, data, &datalen); | |
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 | CLIParserInit("hf 14a pse", | |
111 | "Executes PSE/PPSE select command. It returns list of applet on the card:\n", | |
112 | "Usage:\n\thf emv pse -s1 -> select, get pse\n\thf emv pse -st2 -> select, get ppse, show result in TLV\n"); | |
113 | ||
114 | void* argtable[] = { | |
115 | arg_param_begin, | |
116 | arg_lit0("sS", "select", "activate field and select card"), | |
117 | arg_lit0("kK", "keep", "keep field ON for next command"), | |
118 | arg_lit0("1", "pse", "pse (1PAY.SYS.DDF01) mode"), | |
119 | arg_lit0("2", "ppse", "ppse (2PAY.SYS.DDF01) mode (default mode)"), | |
120 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
121 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), | |
122 | arg_param_end | |
123 | }; | |
124 | CLIExecWithReturn(cmd, argtable, true); | |
125 | ||
126 | bool activateField = arg_get_lit(1); | |
127 | bool leaveSignalON = arg_get_lit(2); | |
128 | uint8_t PSENum = 2; | |
129 | if (arg_get_lit(3)) | |
130 | PSENum = 1; | |
131 | if (arg_get_lit(4)) | |
132 | PSENum = 2; | |
133 | bool APDULogging = arg_get_lit(5); | |
134 | bool decodeTLV = arg_get_lit(6); | |
135 | CLIParserFree(); | |
136 | ||
137 | SetAPDULogging(APDULogging); | |
138 | ||
139 | // exec | |
140 | uint8_t buf[APDU_RES_LEN] = {0}; | |
141 | size_t len = 0; | |
142 | uint16_t sw = 0; | |
143 | int res = EMVSelectPSE(activateField, leaveSignalON, PSENum, buf, sizeof(buf), &len, &sw); | |
144 | ||
145 | if (sw) | |
146 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
147 | ||
148 | if (res) | |
149 | return res; | |
150 | ||
151 | ||
152 | if (decodeTLV) | |
153 | TLVPrintFromBuffer(buf, len); | |
154 | ||
155 | return 0; | |
156 | } | |
157 | ||
158 | #define TLV_ADD(tag, value)( tlvdb_add(tlvRoot, tlvdb_fixed(tag, sizeof(value) - 1, (const unsigned char *)value)) ) | |
159 | ||
160 | int CmdHFEMVGPO(const char *cmd) { | |
161 | uint8_t data[APDU_RES_LEN] = {0}; | |
162 | int datalen = 0; | |
163 | ||
164 | CLIParserInit("hf 14a gpo", | |
165 | "Executes Get Processing Options command. It returns data in TLV format (0x77 - format2) or plain format (0x80 - format1).\nNeeds a EMV applet to be selected.", | |
166 | "Usage:\n\thf emv gpo -k -> execute GPO\n\thf emv gpo -st 01020304 -> execute GPO with 4-byte PDOL data, show result in TLV\n"); | |
167 | // here need to add load params from file and gen pdol | |
168 | ||
169 | void* argtable[] = { | |
170 | arg_param_begin, | |
171 | arg_lit0("kK", "keep", "keep field ON for next command"), | |
172 | arg_lit0("pP", "params", "load parameters for PDOL making from `emv/defparams.json` file (by default uses default parameters) (NOT WORK!!!)"), | |
173 | arg_lit0("mM", "make", "make PDOLdata from PDOL (tag 9F38) and parameters (NOT WORK!!!)"), | |
174 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
175 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), | |
176 | arg_str0(NULL, NULL, "<HEX PDOLdata/PDOL>", NULL), | |
177 | arg_param_end | |
178 | }; | |
179 | CLIExecWithReturn(cmd, argtable, true); | |
180 | ||
181 | bool leaveSignalON = arg_get_lit(1); | |
182 | bool paramsLoadFromFile = arg_get_lit(2); | |
183 | bool dataMakeFromPDOL = arg_get_lit(3); | |
184 | bool APDULogging = arg_get_lit(4); | |
185 | bool decodeTLV = arg_get_lit(5); | |
186 | CLIGetStrWithReturn(6, data, &datalen); | |
187 | CLIParserFree(); | |
188 | ||
189 | SetAPDULogging(APDULogging); | |
190 | ||
191 | // Init TLV tree | |
192 | const char *alr = "Root terminal TLV tree"; | |
193 | struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); | |
194 | ||
195 | // calc PDOL | |
196 | struct tlv *pdol_data_tlv = NULL; | |
197 | struct tlv data_tlv = { | |
198 | .tag = 0x83, //was 01 | |
199 | .len = datalen, | |
200 | .value = (uint8_t *)data, | |
201 | }; | |
202 | if (dataMakeFromPDOL) { | |
203 | // TODO | |
204 | PrintAndLog("Make PDOL data not implemented!"); | |
205 | ||
206 | //9F02:(Amount, authorized (Numeric)) len:6 | |
207 | TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00"); | |
208 | //9F1A:(Terminal Country Code) len:2 | |
209 | TLV_ADD(0x9F1A, "ru"); | |
210 | //5F2A:(Transaction Currency Code) len:2 | |
211 | // USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999 | |
212 | TLV_ADD(0x5F2A, "\x09\x80"); | |
213 | //9A:(Transaction Date) len:3 | |
214 | TLV_ADD(0x9A, "\x00\x00\x00"); | |
215 | //9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash | |
216 | TLV_ADD(0x9C, "\x00"); | |
217 | // 9F37 Unpredictable Number len:4 | |
218 | TLV_ADD(0x9F37, "\x01\x02\x03\x04"); | |
219 | // 9F6A Unpredictable Number (MSD for UDOL) len:4 | |
220 | TLV_ADD(0x9F6A, "\x01\x02\x03\x04"); | |
221 | //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 | |
222 | TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC | |
223 | ||
224 | if (paramsLoadFromFile) { | |
225 | }; | |
226 | /* pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83); | |
227 | if (!pdol_data_tlv){ | |
228 | PrintAndLog("ERROR: can't create PDOL TLV."); | |
229 | tlvdb_free(tlvRoot); | |
230 | return 4; | |
231 | }*/ | |
232 | return 0; | |
233 | } else { | |
234 | pdol_data_tlv = &data_tlv; | |
235 | } | |
236 | ||
237 | size_t pdol_data_tlv_data_len = 0; | |
238 | unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); | |
239 | if (!pdol_data_tlv_data) { | |
240 | PrintAndLog("ERROR: can't create PDOL data."); | |
241 | tlvdb_free(tlvRoot); | |
242 | return 4; | |
243 | } | |
244 | PrintAndLog("PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); | |
245 | ||
246 | // exec | |
247 | uint8_t buf[APDU_RES_LEN] = {0}; | |
248 | size_t len = 0; | |
249 | uint16_t sw = 0; | |
250 | int res = EMVGPO(leaveSignalON, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); | |
251 | ||
252 | free(pdol_data_tlv_data); | |
253 | tlvdb_free(tlvRoot); | |
254 | ||
255 | if (sw) | |
256 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
257 | ||
258 | if (res) | |
259 | return res; | |
260 | ||
261 | if (decodeTLV) | |
262 | TLVPrintFromBuffer(buf, len); | |
263 | ||
264 | return 0; | |
265 | } | |
266 | ||
267 | int CmdHFEMVReadRecord(const char *cmd) { | |
268 | uint8_t data[APDU_RES_LEN] = {0}; | |
269 | int datalen = 0; | |
270 | ||
271 | CLIParserInit("hf 14a readrec", | |
272 | "Executes Read Record command. It returns data in TLV format.\nNeeds a bank applet to be selected and sometimes needs GPO to be executed.", | |
273 | "Usage:\n\thf emv readrec -k 0101 -> read file SFI=01, SFIrec=01\n\thf emv readrec -kt 0201-> read file 0201 and show result in TLV\n"); | |
274 | ||
275 | void* argtable[] = { | |
276 | arg_param_begin, | |
277 | arg_lit0("kK", "keep", "keep field ON for next command"), | |
278 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
279 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), | |
280 | arg_str1(NULL, NULL, "<SFI 1byte HEX><SFIrec 1byte HEX>", NULL), | |
281 | arg_param_end | |
282 | }; | |
283 | CLIExecWithReturn(cmd, argtable, true); | |
284 | ||
285 | bool leaveSignalON = arg_get_lit(1); | |
286 | bool APDULogging = arg_get_lit(2); | |
287 | bool decodeTLV = arg_get_lit(3); | |
288 | CLIGetStrWithReturn(4, data, &datalen); | |
289 | CLIParserFree(); | |
290 | ||
291 | if (datalen != 2) { | |
292 | PrintAndLog("ERROR: Command needs to have 2 bytes of data"); | |
293 | return 1; | |
294 | } | |
295 | ||
296 | SetAPDULogging(APDULogging); | |
297 | ||
298 | // exec | |
299 | uint8_t buf[APDU_RES_LEN] = {0}; | |
300 | size_t len = 0; | |
301 | uint16_t sw = 0; | |
302 | int res = EMVReadRecord(leaveSignalON, data[0], data[1], buf, sizeof(buf), &len, &sw, NULL); | |
303 | ||
304 | if (sw) | |
305 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
306 | ||
307 | if (res) | |
308 | return res; | |
309 | ||
310 | ||
311 | if (decodeTLV) | |
312 | TLVPrintFromBuffer(buf, len); | |
313 | ||
314 | return 0; | |
315 | } | |
316 | ||
317 | int CmdHFEMVAC(const char *cmd) { | |
318 | ||
319 | return 0; | |
320 | } | |
321 | ||
322 | int CmdHFEMVGenerateChallenge(const char *cmd) { | |
323 | ||
324 | CLIParserInit("hf 14a challenge", | |
325 | "Executes Generate Challenge command. It returns 4-byte random number from card:\n", | |
326 | "Usage:\n\thf emv challenge -> get challenge\n\thf emv challenge -k -> get challenge, keep fileld ON\n"); | |
327 | ||
328 | void* argtable[] = { | |
329 | arg_param_begin, | |
330 | arg_lit0("kK", "keep", "keep field ON for next command"), | |
331 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
332 | arg_param_end | |
333 | }; | |
334 | CLIExecWithReturn(cmd, argtable, true); | |
335 | ||
336 | bool leaveSignalON = arg_get_lit(1); | |
337 | bool APDULogging = arg_get_lit(2); | |
338 | CLIParserFree(); | |
339 | ||
340 | SetAPDULogging(APDULogging); | |
341 | ||
342 | // exec | |
343 | uint8_t buf[APDU_RES_LEN] = {0}; | |
344 | size_t len = 0; | |
345 | uint16_t sw = 0; | |
346 | int res = EMVGenerateChallenge(leaveSignalON, buf, sizeof(buf), &len, &sw, NULL); | |
347 | ||
348 | if (sw) | |
349 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
350 | ||
351 | if (res) | |
352 | return res; | |
353 | ||
354 | PrintAndLog("Challenge: %s", sprint_hex(buf, len)); | |
355 | ||
356 | if (len != 4 && len != 8) | |
357 | PrintAndLog("WARNING: length of challenge must be 4 or 8, but it %d", len); | |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
362 | int CmdHFEMVInternalAuthenticate(const char *cmd) { | |
363 | ||
364 | return 0; | |
365 | } | |
366 | ||
367 | int UsageCmdHFEMVExec(void) { | |
368 | PrintAndLog("HELP : Executes EMV contactless transaction:\n"); | |
369 | PrintAndLog("Usage: hf emv exec [-s][-a][-t][-f][-v][-c][-x][-g]\n"); | |
370 | PrintAndLog(" Options:"); | |
371 | PrintAndLog(" -s : select card"); | |
372 | PrintAndLog(" -a : show APDU reqests and responses\n"); | |
373 | PrintAndLog(" -t : TLV decode results\n"); | |
374 | PrintAndLog(" -f : force search AID. Search AID instead of execute PPSE.\n"); | |
375 | PrintAndLog(" -v : transaction type - qVSDC or M/Chip.\n"); | |
376 | PrintAndLog(" -c : transaction type - qVSDC or M/Chip plus CDA (SDAD generation).\n"); | |
377 | PrintAndLog(" -x : transaction type - VSDC. For test only. Not a standart behavior.\n"); | |
378 | PrintAndLog(" -g : VISA. generate AC from GPO\n"); | |
379 | PrintAndLog("By default : transaction type - MSD.\n"); | |
380 | PrintAndLog("Samples:"); | |
381 | PrintAndLog(" hf emv exec -s -a -t -> execute MSD transaction"); | |
382 | PrintAndLog(" hf emv exec -s -a -t -c -> execute CDA transaction"); | |
383 | return 0; | |
384 | } | |
385 | ||
386 | #define dreturn(n) {free(pdol_data_tlv);tlvdb_free(tlvSelect);tlvdb_free(tlvRoot);DropField();return n;} | |
387 | ||
388 | int CmdHFEMVExec(const char *cmd) { | |
389 | bool activateField = false; | |
390 | bool showAPDU = false; | |
391 | bool decodeTLV = false; | |
392 | bool forceSearch = false; | |
393 | enum TransactionType TrType = TT_MSD; | |
394 | bool GenACGPO = false; | |
395 | ||
396 | uint8_t buf[APDU_RES_LEN] = {0}; | |
397 | size_t len = 0; | |
398 | uint16_t sw = 0; | |
399 | uint8_t AID[APDU_AID_LEN] = {0}; | |
400 | size_t AIDlen = 0; | |
401 | uint8_t ODAiList[4096]; | |
402 | size_t ODAiListLen = 0; | |
403 | ||
404 | int res; | |
405 | ||
406 | struct tlvdb *tlvSelect = NULL; | |
407 | struct tlvdb *tlvRoot = NULL; | |
408 | struct tlv *pdol_data_tlv = NULL; | |
409 | ||
410 | if (strlen(cmd) < 1) { | |
411 | UsageCmdHFEMVExec(); | |
412 | return 0; | |
413 | } | |
414 | ||
415 | int cmdp = 0; | |
416 | while(param_getchar(cmd, cmdp) != 0x00) { | |
417 | char c = param_getchar(cmd, cmdp); | |
418 | if ((c == '-') && (param_getlength(cmd, cmdp) == 2)) | |
419 | switch (param_getchar_indx(cmd, 1, cmdp)) { | |
420 | case 'h': | |
421 | case 'H': | |
422 | UsageCmdHFEMVExec(); | |
423 | return 0; | |
424 | case 's': | |
425 | case 'S': | |
426 | activateField = true; | |
427 | break; | |
428 | case 'a': | |
429 | case 'A': | |
430 | showAPDU = true; | |
431 | break; | |
432 | case 't': | |
433 | case 'T': | |
434 | decodeTLV = true; | |
435 | break; | |
436 | case 'f': | |
437 | case 'F': | |
438 | forceSearch = true; | |
439 | break; | |
440 | case 'x': | |
441 | case 'X': | |
442 | TrType = TT_VSDC; | |
443 | break; | |
444 | case 'v': | |
445 | case 'V': | |
446 | TrType = TT_QVSDCMCHIP; | |
447 | break; | |
448 | case 'c': | |
449 | case 'C': | |
450 | TrType = TT_CDA; | |
451 | break; | |
452 | case 'g': | |
453 | case 'G': | |
454 | GenACGPO = true; | |
455 | break; | |
456 | default: | |
457 | PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp)); | |
458 | return 1; | |
459 | } | |
460 | cmdp++; | |
461 | } | |
462 | ||
463 | ||
464 | // init applets list tree | |
465 | const char *al = "Applets list"; | |
466 | tlvSelect = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); | |
467 | ||
468 | // Application Selection | |
469 | // https://www.openscdp.org/scripts/tutorial/emv/applicationselection.html | |
470 | if (!forceSearch) { | |
471 | // PPSE | |
472 | PrintAndLog("\n* PPSE."); | |
473 | SetAPDULogging(showAPDU); | |
474 | res = EMVSearchPSE(activateField, true, decodeTLV, tlvSelect); | |
475 | ||
476 | // check PPSE and select application id | |
477 | if (!res) { | |
478 | TLVPrintAIDlistFromSelectTLV(tlvSelect); | |
479 | EMVSelectApplication(tlvSelect, AID, &AIDlen); | |
480 | } | |
481 | } | |
482 | ||
483 | // Search | |
484 | if (!AIDlen) { | |
485 | PrintAndLog("\n* Search AID in list."); | |
486 | SetAPDULogging(false); | |
487 | if (EMVSearch(activateField, true, decodeTLV, tlvSelect)) { | |
488 | dreturn(2); | |
489 | } | |
490 | ||
491 | // check search and select application id | |
492 | TLVPrintAIDlistFromSelectTLV(tlvSelect); | |
493 | EMVSelectApplication(tlvSelect, AID, &AIDlen); | |
494 | } | |
495 | ||
496 | // Init TLV tree | |
497 | const char *alr = "Root terminal TLV tree"; | |
498 | tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); | |
499 | ||
500 | // check if we found EMV application on card | |
501 | if (!AIDlen) { | |
502 | PrintAndLog("Can't select AID. EMV AID not found"); | |
503 | dreturn(2); | |
504 | } | |
505 | ||
506 | // Select | |
507 | PrintAndLog("\n* Selecting AID:%s", sprint_hex_inrow(AID, AIDlen)); | |
508 | SetAPDULogging(showAPDU); | |
509 | res = EMVSelect(false, true, AID, AIDlen, buf, sizeof(buf), &len, &sw, tlvRoot); | |
510 | ||
511 | if (res) { | |
512 | PrintAndLog("Can't select AID (%d). Exit...", res); | |
513 | dreturn(3); | |
514 | } | |
515 | ||
516 | if (decodeTLV) | |
517 | TLVPrintFromBuffer(buf, len); | |
518 | PrintAndLog("* Selected."); | |
519 | ||
520 | PrintAndLog("\n* Init transaction parameters."); | |
521 | ||
522 | //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 | |
523 | char *qVSDC = "\x26\x00\x00\x00"; | |
524 | if (GenACGPO) { | |
525 | qVSDC = "\x26\x80\x00\x00"; | |
526 | } | |
527 | switch(TrType) { | |
528 | case TT_MSD: | |
529 | TLV_ADD(0x9F66, "\x86\x00\x00\x00"); // MSD | |
530 | break; | |
531 | // not standard for contactless. just for test. | |
532 | case TT_VSDC: | |
533 | TLV_ADD(0x9F66, "\x46\x00\x00\x00"); // VSDC | |
534 | break; | |
535 | case TT_QVSDCMCHIP: | |
536 | TLV_ADD(0x9F66, qVSDC); // qVSDC | |
537 | break; | |
538 | case TT_CDA: | |
539 | TLV_ADD(0x9F66, qVSDC); // qVSDC (VISA CDA not enabled) | |
540 | break; | |
541 | default: | |
542 | TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC | |
543 | break; | |
544 | } | |
545 | ||
546 | //9F02:(Amount, authorized (Numeric)) len:6 | |
547 | TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00"); | |
548 | //9F1A:(Terminal Country Code) len:2 | |
549 | TLV_ADD(0x9F1A, "ru"); | |
550 | //5F2A:(Transaction Currency Code) len:2 | |
551 | // USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999 | |
552 | TLV_ADD(0x5F2A, "\x09\x80"); | |
553 | //9A:(Transaction Date) len:3 | |
554 | TLV_ADD(0x9A, "\x00\x00\x00"); | |
555 | //9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash | |
556 | TLV_ADD(0x9C, "\x00"); | |
557 | // 9F37 Unpredictable Number len:4 | |
558 | TLV_ADD(0x9F37, "\x01\x02\x03\x04"); | |
559 | // 9F6A Unpredictable Number (MSD for UDOL) len:4 | |
560 | TLV_ADD(0x9F6A, "\x01\x02\x03\x04"); | |
561 | ||
562 | TLVPrintFromTLV(tlvRoot); // TODO delete!!! | |
563 | ||
564 | PrintAndLog("\n* Calc PDOL."); | |
565 | pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83); | |
566 | if (!pdol_data_tlv){ | |
567 | PrintAndLog("ERROR: can't create PDOL TLV."); | |
568 | dreturn(4); | |
569 | } | |
570 | ||
571 | size_t pdol_data_tlv_data_len; | |
572 | unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); | |
573 | if (!pdol_data_tlv_data) { | |
574 | PrintAndLog("ERROR: can't create PDOL data."); | |
575 | dreturn(4); | |
576 | } | |
577 | PrintAndLog("PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); | |
578 | ||
579 | PrintAndLog("\n* GPO."); | |
580 | res = EMVGPO(true, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); | |
581 | ||
582 | free(pdol_data_tlv_data); | |
583 | //free(pdol_data_tlv); --- free on exit. | |
584 | ||
585 | if (res) { | |
586 | PrintAndLog("GPO error(%d): %4x. Exit...", res, sw); | |
587 | dreturn(5); | |
588 | } | |
589 | ||
590 | // process response template format 1 [id:80 2b AIP + x4b AFL] and format 2 [id:77 TLV] | |
591 | if (buf[0] == 0x80) { | |
592 | if (decodeTLV){ | |
593 | PrintAndLog("GPO response format1:"); | |
594 | TLVPrintFromBuffer(buf, len); | |
595 | } | |
596 | ||
597 | if (len < 4 || (len - 4) % 4) { | |
598 | PrintAndLog("ERROR: GPO response format1 parsing error. length=%d", len); | |
599 | } else { | |
600 | // AIP | |
601 | struct tlvdb * f1AIP = tlvdb_fixed(0x82, 2, buf + 2); | |
602 | tlvdb_add(tlvRoot, f1AIP); | |
603 | if (decodeTLV){ | |
604 | PrintAndLog("\n* * Decode response format 1 (0x80) AIP and AFL:"); | |
605 | TLVPrintFromTLV(f1AIP); | |
606 | } | |
607 | ||
608 | // AFL | |
609 | struct tlvdb * f1AFL = tlvdb_fixed(0x94, len - 4, buf + 2 + 2); | |
610 | tlvdb_add(tlvRoot, f1AFL); | |
611 | if (decodeTLV) | |
612 | TLVPrintFromTLV(f1AFL); | |
613 | } | |
614 | } else { | |
615 | if (decodeTLV) | |
616 | TLVPrintFromBuffer(buf, len); | |
617 | } | |
618 | ||
619 | // extract PAN from track2 | |
620 | { | |
621 | const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL); | |
622 | if (!tlvdb_get(tlvRoot, 0x5a, NULL) && track2 && track2->len >= 8) { | |
623 | struct tlvdb *pan = GetPANFromTrack2(track2); | |
624 | if (pan) { | |
625 | tlvdb_add(tlvRoot, pan); | |
626 | ||
627 | const struct tlv *pantlv = tlvdb_get(tlvRoot, 0x5a, NULL); | |
628 | PrintAndLog("\n* * Extracted PAN from track2: %s", sprint_hex(pantlv->value, pantlv->len)); | |
629 | } else { | |
630 | PrintAndLog("\n* * WARNING: Can't extract PAN from track2."); | |
631 | } | |
632 | } | |
633 | } | |
634 | ||
635 | PrintAndLog("\n* Read records from AFL."); | |
636 | const struct tlv *AFL = tlvdb_get(tlvRoot, 0x94, NULL); | |
637 | if (!AFL || !AFL->len) { | |
638 | PrintAndLog("WARNING: AFL not found."); | |
639 | } | |
640 | ||
641 | while(AFL && AFL->len) { | |
642 | if (AFL->len % 4) { | |
643 | PrintAndLog("ERROR: Wrong AFL length: %d", AFL->len); | |
644 | break; | |
645 | } | |
646 | ||
647 | for (int i = 0; i < AFL->len / 4; i++) { | |
648 | uint8_t SFI = AFL->value[i * 4 + 0] >> 3; | |
649 | uint8_t SFIstart = AFL->value[i * 4 + 1]; | |
650 | uint8_t SFIend = AFL->value[i * 4 + 2]; | |
651 | uint8_t SFIoffline = AFL->value[i * 4 + 3]; | |
652 | ||
653 | PrintAndLog("* * SFI[%02x] start:%02x end:%02x offline:%02x", SFI, SFIstart, SFIend, SFIoffline); | |
654 | if (SFI == 0 || SFI == 31 || SFIstart == 0 || SFIstart > SFIend) { | |
655 | PrintAndLog("SFI ERROR! Skipped..."); | |
656 | continue; | |
657 | } | |
658 | ||
659 | for(int n = SFIstart; n <= SFIend; n++) { | |
660 | PrintAndLog("* * * SFI[%02x] %d", SFI, n); | |
661 | ||
662 | res = EMVReadRecord(true, SFI, n, buf, sizeof(buf), &len, &sw, tlvRoot); | |
663 | if (res) { | |
664 | PrintAndLog("ERROR SFI[%02x]. APDU error %4x", SFI, sw); | |
665 | continue; | |
666 | } | |
667 | ||
668 | if (decodeTLV) { | |
669 | TLVPrintFromBuffer(buf, len); | |
670 | PrintAndLog(""); | |
671 | } | |
672 | ||
673 | // Build Input list for Offline Data Authentication | |
674 | // EMV 4.3 book3 10.3, page 96 | |
675 | if (SFIoffline) { | |
676 | if (SFI < 11) { | |
677 | const unsigned char *abuf = buf; | |
678 | size_t elmlen = len; | |
679 | struct tlv e; | |
680 | if (tlv_parse_tl(&abuf, &elmlen, &e)) { | |
681 | memcpy(&ODAiList[ODAiListLen], &buf[len - elmlen], elmlen); | |
682 | ODAiListLen += elmlen; | |
683 | } else { | |
684 | PrintAndLog("ERROR SFI[%02x]. Creating input list for Offline Data Authentication error.", SFI); | |
685 | } | |
686 | } else { | |
687 | memcpy(&ODAiList[ODAiListLen], buf, len); | |
688 | ODAiListLen += len; | |
689 | } | |
690 | } | |
691 | } | |
692 | } | |
693 | ||
694 | break; | |
695 | } | |
696 | ||
697 | // copy Input list for Offline Data Authentication | |
698 | if (ODAiListLen) { | |
699 | struct tlvdb *oda = tlvdb_fixed(0x21, ODAiListLen, ODAiList); // not a standard tag | |
700 | tlvdb_add(tlvRoot, oda); | |
701 | PrintAndLog("* Input list for Offline Data Authentication added to TLV. len=%d \n", ODAiListLen); | |
702 | } | |
703 | ||
704 | // get AIP | |
705 | const struct tlv *AIPtlv = tlvdb_get(tlvRoot, 0x82, NULL); | |
706 | uint16_t AIP = AIPtlv->value[0] + AIPtlv->value[1] * 0x100; | |
707 | PrintAndLog("* * AIP=%04x", AIP); | |
708 | ||
709 | // SDA | |
710 | if (AIP & 0x0040) { | |
711 | PrintAndLog("\n* SDA"); | |
712 | trSDA(tlvRoot); | |
713 | } | |
714 | ||
715 | // DDA | |
716 | if (AIP & 0x0020) { | |
717 | PrintAndLog("\n* DDA"); | |
718 | trDDA(decodeTLV, tlvRoot); | |
719 | } | |
720 | ||
721 | // transaction check | |
722 | ||
723 | // qVSDC | |
724 | if (TrType == TT_QVSDCMCHIP|| TrType == TT_CDA){ | |
725 | // 9F26: Application Cryptogram | |
726 | const struct tlv *AC = tlvdb_get(tlvRoot, 0x9F26, NULL); | |
727 | if (AC) { | |
728 | PrintAndLog("\n--> qVSDC transaction."); | |
729 | PrintAndLog("* AC path"); | |
730 | ||
731 | // 9F36: Application Transaction Counter (ATC) | |
732 | const struct tlv *ATC = tlvdb_get(tlvRoot, 0x9F36, NULL); | |
733 | if (ATC) { | |
734 | ||
735 | // 9F10: Issuer Application Data - optional | |
736 | const struct tlv *IAD = tlvdb_get(tlvRoot, 0x9F10, NULL); | |
737 | ||
738 | // print AC data | |
739 | PrintAndLog("ATC: %s", sprint_hex(ATC->value, ATC->len)); | |
740 | PrintAndLog("AC: %s", sprint_hex(AC->value, AC->len)); | |
741 | if (IAD){ | |
742 | PrintAndLog("IAD: %s", sprint_hex(IAD->value, IAD->len)); | |
743 | ||
744 | if (IAD->len >= IAD->value[0] + 1) { | |
745 | PrintAndLog("\tKey index: 0x%02x", IAD->value[1]); | |
746 | PrintAndLog("\tCrypto ver: 0x%02x(%03d)", IAD->value[2], IAD->value[2]); | |
747 | PrintAndLog("\tCVR:", sprint_hex(&IAD->value[3], IAD->value[0] - 2)); | |
748 | struct tlvdb * cvr = tlvdb_fixed(0x20, IAD->value[0] - 2, &IAD->value[3]); | |
749 | TLVPrintFromTLVLev(cvr, 1); | |
750 | } | |
751 | } else { | |
752 | PrintAndLog("WARNING: IAD not found."); | |
753 | } | |
754 | ||
755 | } else { | |
756 | PrintAndLog("ERROR AC: Application Transaction Counter (ATC) not found."); | |
757 | } | |
758 | } | |
759 | } | |
760 | ||
761 | // Mastercard M/CHIP | |
762 | if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD && (TrType == TT_QVSDCMCHIP || TrType == TT_CDA)){ | |
763 | const struct tlv *CDOL1 = tlvdb_get(tlvRoot, 0x8c, NULL); | |
764 | if (CDOL1 && GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { // and m/chip transaction flag | |
765 | PrintAndLog("\n--> Mastercard M/Chip transaction."); | |
766 | ||
767 | PrintAndLog("* * Generate challenge"); | |
768 | res = EMVGenerateChallenge(true, buf, sizeof(buf), &len, &sw, tlvRoot); | |
769 | if (res) { | |
770 | PrintAndLog("ERROR GetChallenge. APDU error %4x", sw); | |
771 | dreturn(6); | |
772 | } | |
773 | if (len < 4) { | |
774 | PrintAndLog("ERROR GetChallenge. Wrong challenge length %d", len); | |
775 | dreturn(6); | |
776 | } | |
777 | ||
778 | // ICC Dynamic Number | |
779 | struct tlvdb * ICCDynN = tlvdb_fixed(0x9f4c, len, buf); | |
780 | tlvdb_add(tlvRoot, ICCDynN); | |
781 | if (decodeTLV){ | |
782 | PrintAndLog("\n* * ICC Dynamic Number:"); | |
783 | TLVPrintFromTLV(ICCDynN); | |
784 | } | |
785 | ||
786 | PrintAndLog("* * Calc CDOL1"); | |
787 | struct tlv *cdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x8c, NULL), tlvRoot, 0x01); // 0x01 - dummy tag | |
788 | if (!cdol_data_tlv){ | |
789 | PrintAndLog("ERROR: can't create CDOL1 TLV."); | |
790 | dreturn(6); | |
791 | } | |
792 | PrintAndLog("CDOL1 data[%d]: %s", cdol_data_tlv->len, sprint_hex(cdol_data_tlv->value, cdol_data_tlv->len)); | |
793 | ||
794 | PrintAndLog("* * AC1"); | |
795 | // EMVAC_TC + EMVAC_CDAREQ --- to get SDAD | |
796 | 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); | |
797 | ||
798 | if (res) { | |
799 | PrintAndLog("AC1 error(%d): %4x. Exit...", res, sw); | |
800 | dreturn(7); | |
801 | } | |
802 | ||
803 | if (decodeTLV) | |
804 | TLVPrintFromBuffer(buf, len); | |
805 | ||
806 | // CDA | |
807 | PrintAndLog("\n* CDA:"); | |
808 | struct tlvdb *ac_tlv = tlvdb_parse_multi(buf, len); | |
809 | res = trCDA(tlvRoot, ac_tlv, pdol_data_tlv, cdol_data_tlv); | |
810 | if (res) { | |
811 | PrintAndLog("CDA error (%d)", res); | |
812 | } | |
813 | free(ac_tlv); | |
814 | free(cdol_data_tlv); | |
815 | ||
816 | PrintAndLog("\n* M/Chip transaction result:"); | |
817 | // 9F27: Cryptogram Information Data (CID) | |
818 | const struct tlv *CID = tlvdb_get(tlvRoot, 0x9F27, NULL); | |
819 | if (CID) { | |
820 | emv_tag_dump(CID, stdout, 0); | |
821 | PrintAndLog("------------------------------"); | |
822 | if (CID->len > 0) { | |
823 | switch(CID->value[0] & EMVAC_AC_MASK){ | |
824 | case EMVAC_AAC: | |
825 | PrintAndLog("Transaction DECLINED."); | |
826 | break; | |
827 | case EMVAC_TC: | |
828 | PrintAndLog("Transaction approved OFFLINE."); | |
829 | break; | |
830 | case EMVAC_ARQC: | |
831 | PrintAndLog("Transaction approved ONLINE."); | |
832 | break; | |
833 | default: | |
834 | PrintAndLog("ERROR: CID transaction code error %2x", CID->value[0] & EMVAC_AC_MASK); | |
835 | break; | |
836 | } | |
837 | } else { | |
838 | PrintAndLog("ERROR: Wrong CID length %d", CID->len); | |
839 | } | |
840 | } else { | |
841 | PrintAndLog("ERROR: CID(9F27) not found."); | |
842 | } | |
843 | ||
844 | } | |
845 | } | |
846 | ||
847 | // MSD | |
848 | if (AIP & 0x8000 && TrType == TT_MSD) { | |
849 | PrintAndLog("\n--> MSD transaction."); | |
850 | ||
851 | PrintAndLog("* MSD dCVV path. Check dCVV"); | |
852 | ||
853 | const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL); | |
854 | if (track2) { | |
855 | PrintAndLog("Track2: %s", sprint_hex(track2->value, track2->len)); | |
856 | ||
857 | struct tlvdb *dCVV = GetdCVVRawFromTrack2(track2); | |
858 | PrintAndLog("dCVV raw data:"); | |
859 | TLVPrintFromTLV(dCVV); | |
860 | ||
861 | if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { | |
862 | PrintAndLog("\n* Mastercard calculate UDOL"); | |
863 | ||
864 | // UDOL (9F69) | |
865 | const struct tlv *UDOL = tlvdb_get(tlvRoot, 0x9F69, NULL); | |
866 | // UDOL(9F69) default: 9F6A (Unpredictable number) 4 bytes | |
867 | const struct tlv defUDOL = { | |
868 | .tag = 0x01, | |
869 | .len = 3, | |
870 | .value = (uint8_t *)"\x9f\x6a\x04", | |
871 | }; | |
872 | if (!UDOL) | |
873 | PrintAndLog("Use default UDOL."); | |
874 | ||
875 | struct tlv *udol_data_tlv = dol_process(UDOL ? UDOL : &defUDOL, tlvRoot, 0x01); // 0x01 - dummy tag | |
876 | if (!udol_data_tlv){ | |
877 | PrintAndLog("ERROR: can't create UDOL TLV."); | |
878 | dreturn(8); | |
879 | } | |
880 | ||
881 | PrintAndLog("UDOL data[%d]: %s", udol_data_tlv->len, sprint_hex(udol_data_tlv->value, udol_data_tlv->len)); | |
882 | ||
883 | PrintAndLog("\n* Mastercard compute cryptographic checksum(UDOL)"); | |
884 | ||
885 | res = MSCComputeCryptoChecksum(true, (uint8_t *)udol_data_tlv->value, udol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); | |
886 | if (res) { | |
887 | PrintAndLog("ERROR Compute Crypto Checksum. APDU error %4x", sw); | |
888 | free(udol_data_tlv); | |
889 | dreturn(9); | |
890 | } | |
891 | ||
892 | if (decodeTLV) { | |
893 | TLVPrintFromBuffer(buf, len); | |
894 | PrintAndLog(""); | |
895 | } | |
896 | free(udol_data_tlv); | |
897 | ||
898 | } | |
899 | } else { | |
900 | PrintAndLog("ERROR MSD: Track2 data not found."); | |
901 | } | |
902 | } | |
903 | ||
904 | // DropField | |
905 | DropField(); | |
906 | ||
907 | // Destroy TLV's | |
908 | free(pdol_data_tlv); | |
909 | tlvdb_free(tlvSelect); | |
910 | tlvdb_free(tlvRoot); | |
911 | ||
912 | PrintAndLog("\n* Transaction completed."); | |
913 | ||
914 | return 0; | |
915 | } | |
916 | ||
917 | int CmdHFEMVTest(const char *cmd) { | |
918 | return ExecuteCryptoTests(true); | |
919 | } | |
920 | ||
921 | int CmdHelp(const char *Cmd); | |
922 | static command_t CommandTable[] = { | |
923 | {"help", CmdHelp, 1, "This help"}, | |
924 | {"exec", CmdHFEMVExec, 0, "Executes EMV contactless transaction."}, | |
925 | {"pse", CmdHFEMVPPSE, 0, "Execute PPSE. It selects 2PAY.SYS.DDF01 or 1PAY.SYS.DDF01 directory."}, | |
926 | {"search", CmdHFEMVSearch, 0, "Try to select all applets from applets list and print installed applets."}, | |
927 | {"select", CmdHFEMVSelect, 0, "Select applet."}, | |
928 | {"gpo", CmdHFEMVGPO, 0, "Execute GetProcessingOptions."}, | |
929 | {"readrec", CmdHFEMVReadRecord, 0, "Read files from card."}, | |
930 | {"genac", CmdHFEMVAC, 0, "Generate ApplicationCryptogram."}, | |
931 | {"challenge", CmdHFEMVGenerateChallenge, 0, "Generate challenge."}, | |
932 | {"intauth", CmdHFEMVInternalAuthenticate, 0, "Internal authentication."}, | |
933 | {"test", CmdHFEMVTest, 0, "Crypto logic test."}, | |
934 | {NULL, NULL, 0, NULL} | |
935 | }; | |
936 | ||
937 | int CmdHFEMV(const char *Cmd) { | |
938 | CmdsParse(CommandTable, Cmd); | |
939 | return 0; | |
940 | } | |
941 | ||
942 | int CmdHelp(const char *Cmd) { | |
943 | CmdsHelp(CommandTable); | |
944 | return 0; | |
945 | } |