`hf emv challenge` works
[proxmark3-svn] / client / emv / cmdemv.c
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 }
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