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3c5fce2b | 1 | //----------------------------------------------------------------------------- |
11a78e04 | 2 | // Copyright (C) 2017, 2018 Merlok |
3c5fce2b OM |
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" |
556826b5 | 15 | #include <jansson.h> |
3c5fce2b OM |
16 | |
17 | int UsageCmdHFEMVSelect(void) { | |
18 | PrintAndLog("HELP : Executes select applet command:\n"); | |
19 | PrintAndLog("Usage: hf emv select [-s][-k][-a][-t] <HEX applet AID>\n"); | |
20 | PrintAndLog(" Options:"); | |
21 | PrintAndLog(" -s : select card"); | |
22 | PrintAndLog(" -k : keep field for next command"); | |
23 | PrintAndLog(" -a : show APDU reqests and responses\n"); | |
24 | PrintAndLog(" -t : TLV decode results\n"); | |
25 | PrintAndLog("Samples:"); | |
26 | PrintAndLog(" hf emv select -s a00000000101 -> select card, select applet"); | |
27 | PrintAndLog(" hf emv select -s -t a00000000101 -> select card, select applet, show result in TLV"); | |
28 | return 0; | |
29 | } | |
3c5fce2b | 30 | |
3c5fce2b OM |
31 | int CmdHFEMVSelect(const char *cmd) { |
32 | uint8_t data[APDU_AID_LEN] = {0}; | |
33 | int datalen = 0; | |
3c5fce2b | 34 | |
3c5fce2b | 35 | |
02ab5afa | 36 | CLIParserInit("hf emv select", |
3668df05 | 37 | "Executes select applet command", |
a4662ca9 | 38 | "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 | 39 | |
3668df05 | 40 | void* argtable[] = { |
41 | arg_param_begin, | |
42 | arg_lit0("sS", "select", "activate field and select card"), | |
43 | arg_lit0("kK", "keep", "keep field for next command"), | |
44 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
45 | arg_lit0("tT", "tlv", "TLV decode results"), | |
46 | arg_str0(NULL, NULL, "<HEX applet AID>", NULL), | |
47 | arg_param_end | |
48 | }; | |
49 | CLIExecWithReturn(cmd, argtable, true); | |
50 | ||
51 | bool activateField = arg_get_lit(1); | |
52 | bool leaveSignalON = arg_get_lit(2); | |
53 | bool APDULogging = arg_get_lit(3); | |
54 | bool decodeTLV = arg_get_lit(4); | |
cd2f1acd | 55 | CLIGetStrWithReturn(5, data, &datalen); |
3668df05 | 56 | CLIParserFree(); |
57 | ||
58 | SetAPDULogging(APDULogging); | |
3c5fce2b OM |
59 | |
60 | // exec | |
61 | uint8_t buf[APDU_RES_LEN] = {0}; | |
62 | size_t len = 0; | |
63 | uint16_t sw = 0; | |
64 | int res = EMVSelect(activateField, leaveSignalON, data, datalen, buf, sizeof(buf), &len, &sw, NULL); | |
65 | ||
66 | if (sw) | |
67 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
68 | ||
69 | if (res) | |
70 | return res; | |
71 | ||
72 | if (decodeTLV) | |
73 | TLVPrintFromBuffer(buf, len); | |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
3c5fce2b OM |
78 | int CmdHFEMVSearch(const char *cmd) { |
79 | ||
02ab5afa | 80 | CLIParserInit("hf emv search", |
6d31653c | 81 | "Tries to select all applets from applet list:\n", |
a4662ca9 | 82 | "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 | 83 | |
84 | void* argtable[] = { | |
85 | arg_param_begin, | |
86 | arg_lit0("sS", "select", "activate field and select card"), | |
87 | arg_lit0("kK", "keep", "keep field ON for next command"), | |
88 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
89 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), | |
90 | arg_param_end | |
91 | }; | |
92 | CLIExecWithReturn(cmd, argtable, true); | |
3c5fce2b | 93 | |
6d31653c | 94 | bool activateField = arg_get_lit(1); |
95 | bool leaveSignalON = arg_get_lit(2); | |
96 | bool APDULogging = arg_get_lit(3); | |
97 | bool decodeTLV = arg_get_lit(4); | |
3668df05 | 98 | CLIParserFree(); |
6d31653c | 99 | |
100 | SetAPDULogging(APDULogging); | |
3c5fce2b | 101 | |
3c5fce2b OM |
102 | struct tlvdb *t = NULL; |
103 | const char *al = "Applets list"; | |
104 | t = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); | |
105 | ||
106 | if (EMVSearch(activateField, leaveSignalON, decodeTLV, t)) { | |
107 | tlvdb_free(t); | |
108 | return 2; | |
109 | } | |
110 | ||
111 | PrintAndLog("Search completed."); | |
112 | ||
113 | // print list here | |
114 | if (!decodeTLV) { | |
115 | TLVPrintAIDlistFromSelectTLV(t); | |
116 | } | |
117 | ||
118 | tlvdb_free(t); | |
119 | ||
120 | return 0; | |
121 | } | |
122 | ||
3c5fce2b OM |
123 | int CmdHFEMVPPSE(const char *cmd) { |
124 | ||
02ab5afa | 125 | CLIParserInit("hf emv pse", |
a4662ca9 | 126 | "Executes PSE/PPSE select command. It returns list of applet on the card:\n", |
127 | "Usage:\n\thf emv pse -s1 -> select, get pse\n\thf emv pse -st2 -> select, get ppse, show result in TLV\n"); | |
3c5fce2b | 128 | |
a4662ca9 | 129 | void* argtable[] = { |
130 | arg_param_begin, | |
131 | arg_lit0("sS", "select", "activate field and select card"), | |
132 | arg_lit0("kK", "keep", "keep field ON for next command"), | |
133 | arg_lit0("1", "pse", "pse (1PAY.SYS.DDF01) mode"), | |
134 | arg_lit0("2", "ppse", "ppse (2PAY.SYS.DDF01) mode (default mode)"), | |
135 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
136 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), | |
137 | arg_param_end | |
138 | }; | |
139 | CLIExecWithReturn(cmd, argtable, true); | |
140 | ||
141 | bool activateField = arg_get_lit(1); | |
142 | bool leaveSignalON = arg_get_lit(2); | |
143 | uint8_t PSENum = 2; | |
144 | if (arg_get_lit(3)) | |
145 | PSENum = 1; | |
146 | if (arg_get_lit(4)) | |
147 | PSENum = 2; | |
148 | bool APDULogging = arg_get_lit(5); | |
149 | bool decodeTLV = arg_get_lit(6); | |
150 | CLIParserFree(); | |
151 | ||
152 | SetAPDULogging(APDULogging); | |
3c5fce2b OM |
153 | |
154 | // exec | |
155 | uint8_t buf[APDU_RES_LEN] = {0}; | |
156 | size_t len = 0; | |
157 | uint16_t sw = 0; | |
158 | int res = EMVSelectPSE(activateField, leaveSignalON, PSENum, buf, sizeof(buf), &len, &sw); | |
159 | ||
160 | if (sw) | |
161 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
162 | ||
163 | if (res) | |
164 | return res; | |
165 | ||
166 | ||
167 | if (decodeTLV) | |
168 | TLVPrintFromBuffer(buf, len); | |
169 | ||
170 | return 0; | |
171 | } | |
172 | ||
654b6ae3 | 173 | #define TLV_ADD(tag, value)( tlvdb_change_or_add_node(tlvRoot, tag, sizeof(value) - 1, (const unsigned char *)value) ) |
ab2d91f8 | 174 | |
a4662ca9 | 175 | int CmdHFEMVGPO(const char *cmd) { |
cd2f1acd | 176 | uint8_t data[APDU_RES_LEN] = {0}; |
177 | int datalen = 0; | |
178 | ||
02ab5afa | 179 | CLIParserInit("hf emv gpo", |
ab2d91f8 | 180 | "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.", |
0c4750c3 | 181 | "Usage:\n\thf emv gpo -k -> execute GPO\n" |
182 | "\thf emv gpo -st 01020304 -> execute GPO with 4-byte PDOL data, show result in TLV\n"); | |
183 | // here need to add load params from file and gen pdol | |
cd2f1acd | 184 | |
185 | void* argtable[] = { | |
186 | arg_param_begin, | |
187 | arg_lit0("kK", "keep", "keep field ON for next command"), | |
188 | arg_lit0("pP", "params", "load parameters for PDOL making from `emv/defparams.json` file (by default uses default parameters) (NOT WORK!!!)"), | |
189 | arg_lit0("mM", "make", "make PDOLdata from PDOL (tag 9F38) and parameters (NOT WORK!!!)"), | |
190 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
191 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), | |
192 | arg_str0(NULL, NULL, "<HEX PDOLdata/PDOL>", NULL), | |
193 | arg_param_end | |
194 | }; | |
195 | CLIExecWithReturn(cmd, argtable, true); | |
196 | ||
197 | bool leaveSignalON = arg_get_lit(1); | |
198 | bool paramsLoadFromFile = arg_get_lit(2); | |
199 | bool dataMakeFromPDOL = arg_get_lit(3); | |
200 | bool APDULogging = arg_get_lit(4); | |
201 | bool decodeTLV = arg_get_lit(5); | |
202 | CLIGetStrWithReturn(6, data, &datalen); | |
203 | CLIParserFree(); | |
204 | ||
205 | SetAPDULogging(APDULogging); | |
206 | ||
207 | // Init TLV tree | |
208 | const char *alr = "Root terminal TLV tree"; | |
209 | struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); | |
210 | ||
211 | // calc PDOL | |
212 | struct tlv *pdol_data_tlv = NULL; | |
213 | struct tlv data_tlv = { | |
11a78e04 | 214 | .tag = 0x01, |
cd2f1acd | 215 | .len = datalen, |
216 | .value = (uint8_t *)data, | |
217 | }; | |
218 | if (dataMakeFromPDOL) { | |
219 | // TODO | |
220 | PrintAndLog("Make PDOL data not implemented!"); | |
ab2d91f8 | 221 | |
222 | //9F02:(Amount, authorized (Numeric)) len:6 | |
223 | TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00"); | |
224 | //9F1A:(Terminal Country Code) len:2 | |
225 | TLV_ADD(0x9F1A, "ru"); | |
226 | //5F2A:(Transaction Currency Code) len:2 | |
227 | // USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999 | |
228 | TLV_ADD(0x5F2A, "\x09\x80"); | |
229 | //9A:(Transaction Date) len:3 | |
230 | TLV_ADD(0x9A, "\x00\x00\x00"); | |
231 | //9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash | |
232 | TLV_ADD(0x9C, "\x00"); | |
233 | // 9F37 Unpredictable Number len:4 | |
234 | TLV_ADD(0x9F37, "\x01\x02\x03\x04"); | |
235 | // 9F6A Unpredictable Number (MSD for UDOL) len:4 | |
236 | TLV_ADD(0x9F6A, "\x01\x02\x03\x04"); | |
237 | //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 | |
238 | TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC | |
239 | ||
cd2f1acd | 240 | if (paramsLoadFromFile) { |
241 | }; | |
242 | /* pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83); | |
243 | if (!pdol_data_tlv){ | |
244 | PrintAndLog("ERROR: can't create PDOL TLV."); | |
245 | tlvdb_free(tlvRoot); | |
246 | return 4; | |
247 | }*/ | |
248 | return 0; | |
249 | } else { | |
250 | pdol_data_tlv = &data_tlv; | |
251 | } | |
252 | ||
253 | size_t pdol_data_tlv_data_len = 0; | |
254 | unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); | |
255 | if (!pdol_data_tlv_data) { | |
256 | PrintAndLog("ERROR: can't create PDOL data."); | |
257 | tlvdb_free(tlvRoot); | |
258 | return 4; | |
259 | } | |
260 | PrintAndLog("PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); | |
261 | ||
262 | // exec | |
263 | uint8_t buf[APDU_RES_LEN] = {0}; | |
264 | size_t len = 0; | |
265 | uint16_t sw = 0; | |
266 | int res = EMVGPO(leaveSignalON, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); | |
267 | ||
268 | free(pdol_data_tlv_data); | |
269 | tlvdb_free(tlvRoot); | |
270 | ||
271 | if (sw) | |
272 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
273 | ||
274 | if (res) | |
275 | return res; | |
276 | ||
277 | if (decodeTLV) | |
278 | TLVPrintFromBuffer(buf, len); | |
a4662ca9 | 279 | |
626e650f | 280 | return 0; |
a4662ca9 | 281 | } |
282 | ||
283 | int CmdHFEMVReadRecord(const char *cmd) { | |
cd2f1acd | 284 | uint8_t data[APDU_RES_LEN] = {0}; |
285 | int datalen = 0; | |
286 | ||
02ab5afa | 287 | CLIParserInit("hf emv readrec", |
ab2d91f8 | 288 | "Executes Read Record command. It returns data in TLV format.\nNeeds a bank applet to be selected and sometimes needs GPO to be executed.", |
289 | "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"); | |
cd2f1acd | 290 | |
291 | void* argtable[] = { | |
292 | arg_param_begin, | |
293 | arg_lit0("kK", "keep", "keep field ON for next command"), | |
294 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
295 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), | |
ab2d91f8 | 296 | arg_str1(NULL, NULL, "<SFI 1byte HEX><SFIrec 1byte HEX>", NULL), |
cd2f1acd | 297 | arg_param_end |
298 | }; | |
299 | CLIExecWithReturn(cmd, argtable, true); | |
300 | ||
301 | bool leaveSignalON = arg_get_lit(1); | |
302 | bool APDULogging = arg_get_lit(2); | |
303 | bool decodeTLV = arg_get_lit(3); | |
304 | CLIGetStrWithReturn(4, data, &datalen); | |
305 | CLIParserFree(); | |
306 | ||
307 | if (datalen != 2) { | |
308 | PrintAndLog("ERROR: Command needs to have 2 bytes of data"); | |
309 | return 1; | |
310 | } | |
311 | ||
312 | SetAPDULogging(APDULogging); | |
313 | ||
314 | // exec | |
315 | uint8_t buf[APDU_RES_LEN] = {0}; | |
316 | size_t len = 0; | |
317 | uint16_t sw = 0; | |
318 | int res = EMVReadRecord(leaveSignalON, data[0], data[1], buf, sizeof(buf), &len, &sw, NULL); | |
319 | ||
320 | if (sw) | |
321 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
322 | ||
323 | if (res) | |
324 | return res; | |
325 | ||
326 | ||
327 | if (decodeTLV) | |
328 | TLVPrintFromBuffer(buf, len); | |
a4662ca9 | 329 | |
626e650f | 330 | return 0; |
a4662ca9 | 331 | } |
332 | ||
333 | int CmdHFEMVAC(const char *cmd) { | |
11a78e04 | 334 | uint8_t data[APDU_RES_LEN] = {0}; |
335 | int datalen = 0; | |
a4662ca9 | 336 | |
02ab5afa | 337 | CLIParserInit("hf emv genac", |
11a78e04 | 338 | "Generate Application Cryptogram command. It returns data in TLV format .\nNeeds a EMV applet to be selected and GPO to be executed.", |
02ab5afa | 339 | "Usage:\n\thf emv genac -k 0102 -> generate AC with 2-byte CDOLdata and keep field ON after command\n" |
340 | "\thf emv genac -t 01020304 -> generate AC with 4-byte CDOL data, show result in TLV\n" | |
341 | "\thf emv genac -Daac 01020304 -> generate AC with 4-byte CDOL data and terminal decision 'declined'\n"); | |
11a78e04 | 342 | |
343 | void* argtable[] = { | |
344 | arg_param_begin, | |
02ab5afa | 345 | arg_lit0("kK", "keep", "keep field ON for next command"), |
346 | arg_lit0("cC", "cda", "executes CDA transaction. Needs to get SDAD in results."), | |
347 | arg_str0("dD", "decision", "<aac|tc|arqc>", "Terminal decision. aac - declined, tc - approved, arqc - online authorisation requested"), | |
348 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
349 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), | |
350 | arg_str1(NULL, NULL, "<HEX CDOLdata>", NULL), | |
11a78e04 | 351 | arg_param_end |
352 | }; | |
353 | CLIExecWithReturn(cmd, argtable, false); | |
354 | ||
355 | bool leaveSignalON = arg_get_lit(1); | |
48c32f04 | 356 | bool trTypeCDA = arg_get_lit(2); |
02ab5afa | 357 | uint8_t termDecision = 0xff; |
358 | if (arg_get_str_len(3)) { | |
359 | if (!strncmp(arg_get_str(3)->sval[0], "aac", 4)) | |
360 | termDecision = EMVAC_AAC; | |
361 | if (!strncmp(arg_get_str(3)->sval[0], "tc", 4)) | |
362 | termDecision = EMVAC_TC; | |
363 | if (!strncmp(arg_get_str(3)->sval[0], "arqc", 4)) | |
364 | termDecision = EMVAC_ARQC; | |
365 | ||
366 | if (termDecision == 0xff) { | |
367 | PrintAndLog("ERROR: can't find terminal decision '%s'", arg_get_str(3)->sval[0]); | |
368 | return 1; | |
369 | } | |
370 | } else { | |
371 | termDecision = EMVAC_TC; | |
372 | } | |
373 | if (trTypeCDA) | |
374 | termDecision = termDecision | EMVAC_CDAREQ; | |
375 | bool APDULogging = arg_get_lit(4); | |
376 | bool decodeTLV = arg_get_lit(5); | |
377 | CLIGetStrWithReturn(6, data, &datalen); | |
11a78e04 | 378 | CLIParserFree(); |
379 | ||
380 | SetAPDULogging(APDULogging); | |
381 | ||
382 | // Init TLV tree | |
383 | const char *alr = "Root terminal TLV tree"; | |
384 | struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); | |
385 | ||
386 | // calc CDOL | |
387 | struct tlv *cdol_data_tlv = NULL; | |
388 | // struct tlv *cdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x8c, NULL), tlvRoot, 0x01); // 0x01 - dummy tag | |
389 | struct tlv data_tlv = { | |
390 | .tag = 0x01, | |
391 | .len = datalen, | |
392 | .value = (uint8_t *)data, | |
393 | }; | |
394 | cdol_data_tlv = &data_tlv; | |
395 | PrintAndLog("CDOL data[%d]: %s", cdol_data_tlv->len, sprint_hex(cdol_data_tlv->value, cdol_data_tlv->len)); | |
396 | ||
397 | // exec | |
398 | uint8_t buf[APDU_RES_LEN] = {0}; | |
399 | size_t len = 0; | |
400 | uint16_t sw = 0; | |
02ab5afa | 401 | int res = EMVAC(leaveSignalON, termDecision, (uint8_t *)cdol_data_tlv->value, cdol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); |
11a78e04 | 402 | |
403 | // free(cdol_data_tlv); | |
404 | tlvdb_free(tlvRoot); | |
405 | ||
406 | if (sw) | |
407 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
408 | ||
409 | if (res) | |
410 | return res; | |
411 | ||
412 | if (decodeTLV) | |
413 | TLVPrintFromBuffer(buf, len); | |
414 | ||
415 | return 0; | |
a4662ca9 | 416 | } |
417 | ||
418 | int CmdHFEMVGenerateChallenge(const char *cmd) { | |
419 | ||
02ab5afa | 420 | CLIParserInit("hf emv challenge", |
0c4750c3 | 421 | "Executes Generate Challenge command. It returns 4 or 8-byte random number from card.\nNeeds a EMV applet to be selected and GPO to be executed.", |
8ffdccff | 422 | "Usage:\n\thf emv challenge -> get challenge\n\thf emv challenge -k -> get challenge, keep fileld ON\n"); |
423 | ||
424 | void* argtable[] = { | |
425 | arg_param_begin, | |
426 | arg_lit0("kK", "keep", "keep field ON for next command"), | |
427 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
428 | arg_param_end | |
429 | }; | |
430 | CLIExecWithReturn(cmd, argtable, true); | |
431 | ||
432 | bool leaveSignalON = arg_get_lit(1); | |
433 | bool APDULogging = arg_get_lit(2); | |
434 | CLIParserFree(); | |
435 | ||
436 | SetAPDULogging(APDULogging); | |
437 | ||
438 | // exec | |
439 | uint8_t buf[APDU_RES_LEN] = {0}; | |
440 | size_t len = 0; | |
441 | uint16_t sw = 0; | |
442 | int res = EMVGenerateChallenge(leaveSignalON, buf, sizeof(buf), &len, &sw, NULL); | |
443 | ||
444 | if (sw) | |
445 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
446 | ||
447 | if (res) | |
448 | return res; | |
449 | ||
450 | PrintAndLog("Challenge: %s", sprint_hex(buf, len)); | |
451 | ||
452 | if (len != 4 && len != 8) | |
453 | PrintAndLog("WARNING: length of challenge must be 4 or 8, but it %d", len); | |
454 | ||
626e650f | 455 | return 0; |
a4662ca9 | 456 | } |
457 | ||
458 | int CmdHFEMVInternalAuthenticate(const char *cmd) { | |
11a78e04 | 459 | uint8_t data[APDU_RES_LEN] = {0}; |
460 | int datalen = 0; | |
a4662ca9 | 461 | |
02ab5afa | 462 | CLIParserInit("hf emv intauth", |
11a78e04 | 463 | "Generate Internal Authenticate command. Usually needs 4-byte random number. It returns data in TLV format .\nNeeds a EMV applet to be selected and GPO to be executed.", |
464 | "Usage:\n\thf emv intauth -k 01020304 -> execute Internal Authenticate with 4-byte DDOLdata and keep field ON after command\n" | |
465 | "\thf emv intauth -t 01020304 -> execute Internal Authenticate with 4-byte DDOL data, show result in TLV\n"); | |
466 | ||
467 | void* argtable[] = { | |
468 | arg_param_begin, | |
469 | arg_lit0("kK", "keep", "keep field ON for next command"), | |
470 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), | |
471 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), | |
472 | arg_str1(NULL, NULL, "<HEX DDOLdata>", NULL), | |
473 | arg_param_end | |
474 | }; | |
475 | CLIExecWithReturn(cmd, argtable, false); | |
476 | ||
477 | bool leaveSignalON = arg_get_lit(1); | |
478 | bool APDULogging = arg_get_lit(2); | |
479 | bool decodeTLV = arg_get_lit(3); | |
480 | CLIGetStrWithReturn(4, data, &datalen); | |
481 | CLIParserFree(); | |
482 | ||
483 | SetAPDULogging(APDULogging); | |
484 | ||
485 | // DDOL | |
486 | PrintAndLog("DDOL data[%d]: %s", datalen, sprint_hex(data, datalen)); | |
487 | ||
488 | // exec | |
489 | uint8_t buf[APDU_RES_LEN] = {0}; | |
490 | size_t len = 0; | |
491 | uint16_t sw = 0; | |
492 | int res = EMVInternalAuthenticate(leaveSignalON, data, datalen, buf, sizeof(buf), &len, &sw, NULL); | |
493 | ||
494 | if (sw) | |
495 | PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); | |
496 | ||
497 | if (res) | |
498 | return res; | |
499 | ||
500 | if (decodeTLV) | |
501 | TLVPrintFromBuffer(buf, len); | |
502 | ||
503 | return 0; | |
a4662ca9 | 504 | } |
505 | ||
3c5fce2b OM |
506 | int UsageCmdHFEMVExec(void) { |
507 | PrintAndLog("HELP : Executes EMV contactless transaction:\n"); | |
556826b5 | 508 | PrintAndLog("Usage: hf emv exec [-s][-a][-t][-j][-f][-v][-c][-x][-g]\n"); |
3c5fce2b OM |
509 | PrintAndLog(" Options:"); |
510 | PrintAndLog(" -s : select card"); | |
511 | PrintAndLog(" -a : show APDU reqests and responses\n"); | |
512 | PrintAndLog(" -t : TLV decode results\n"); | |
556826b5 | 513 | PrintAndLog(" -j : load transaction parameters from `emv/defparams.json` file\n"); |
3c5fce2b | 514 | PrintAndLog(" -f : force search AID. Search AID instead of execute PPSE.\n"); |
10d4f823 | 515 | PrintAndLog(" -v : transaction type - qVSDC or M/Chip.\n"); |
516 | PrintAndLog(" -c : transaction type - qVSDC or M/Chip plus CDA (SDAD generation).\n"); | |
517 | PrintAndLog(" -x : transaction type - VSDC. For test only. Not a standart behavior.\n"); | |
d03fb293 | 518 | PrintAndLog(" -g : VISA. generate AC from GPO\n"); |
10d4f823 | 519 | PrintAndLog("By default : transaction type - MSD.\n"); |
3c5fce2b | 520 | PrintAndLog("Samples:"); |
d03fb293 OM |
521 | PrintAndLog(" hf emv exec -s -a -t -> execute MSD transaction"); |
522 | PrintAndLog(" hf emv exec -s -a -t -c -> execute CDA transaction"); | |
3c5fce2b OM |
523 | return 0; |
524 | } | |
525 | ||
d03fb293 | 526 | #define dreturn(n) {free(pdol_data_tlv);tlvdb_free(tlvSelect);tlvdb_free(tlvRoot);DropField();return n;} |
3c5fce2b | 527 | |
556826b5 OM |
528 | bool HexToBuffer(const char *errormsg, const char *hexvalue, uint8_t * buffer, size_t maxbufferlen, size_t *bufferlen) { |
529 | int buflen = 0; | |
530 | ||
531 | switch(param_gethex_to_eol(hexvalue, 0, buffer, maxbufferlen, &buflen)) { | |
532 | case 1: | |
533 | PrintAndLog("%s Invalid HEX value.", errormsg); | |
534 | return false; | |
535 | case 2: | |
536 | PrintAndLog("%s Hex value too large.", errormsg); | |
537 | return false; | |
538 | case 3: | |
539 | PrintAndLog("%s Hex value must have even number of digits.", errormsg); | |
540 | return false; | |
541 | } | |
542 | ||
543 | if (buflen > maxbufferlen) { | |
544 | PrintAndLog("%s HEX length (%d) more than %d", errormsg, *bufferlen, maxbufferlen); | |
545 | return false; | |
546 | } | |
547 | ||
548 | *bufferlen = buflen; | |
549 | ||
550 | return true; | |
551 | } | |
552 | ||
553 | bool ParamLoadFromJson(struct tlvdb *tlv) { | |
554 | json_t *root; | |
555 | json_error_t error; | |
556 | ||
557 | if (!tlv) { | |
558 | PrintAndLog("ERROR load params: tlv tree is NULL."); | |
559 | return false; | |
560 | } | |
561 | ||
562 | // current path + file name | |
563 | const char *relfname = "emv/defparams.json"; | |
564 | char fname[strlen(get_my_executable_directory()) + strlen(relfname) + 1]; | |
565 | strcpy(fname, get_my_executable_directory()); | |
566 | strcat(fname, relfname); | |
567 | ||
568 | root = json_load_file(fname, 0, &error); | |
569 | if (!root) { | |
570 | PrintAndLog("Load params: json error on line %d: %s", error.line, error.text); | |
571 | return false; | |
572 | } | |
573 | ||
574 | if (!json_is_array(root)) { | |
575 | PrintAndLog("Load params: Invalid json format. root must be array."); | |
576 | return false; | |
577 | } | |
578 | ||
579 | PrintAndLog("Load params: json OK"); | |
580 | ||
581 | for(int i = 0; i < json_array_size(root); i++) { | |
582 | json_t *data, *jtype, *jlength, *jvalue; | |
583 | ||
584 | data = json_array_get(root, i); | |
585 | if(!json_is_object(data)) | |
586 | { | |
587 | PrintAndLog("Load params: data [%d] is not an object", i + 1); | |
588 | json_decref(root); | |
589 | return false; | |
590 | } | |
591 | ||
592 | jtype = json_object_get(data, "type"); | |
593 | if(!json_is_string(jtype)) | |
594 | { | |
595 | PrintAndLog("Load params: data [%d] type is not a string", i + 1); | |
596 | json_decref(root); | |
597 | return false; | |
598 | } | |
599 | const char *tlvType = json_string_value(jtype); | |
600 | ||
601 | jvalue = json_object_get(data, "value"); | |
602 | if(!json_is_string(jvalue)) | |
603 | { | |
604 | PrintAndLog("Load params: data [%d] value is not a string", i + 1); | |
605 | json_decref(root); | |
606 | return false; | |
607 | } | |
608 | const char *tlvValue = json_string_value(jvalue); | |
609 | ||
610 | jlength = json_object_get(data, "length"); | |
611 | if(!json_is_number(jlength)) | |
612 | { | |
613 | PrintAndLog("Load params: data [%d] length is not a number", i + 1); | |
614 | json_decref(root); | |
615 | return false; | |
616 | } | |
617 | ||
618 | int tlvLength = json_integer_value(jlength); | |
619 | if (tlvLength > 250) { | |
620 | PrintAndLog("Load params: data [%d] length more than 250", i + 1); | |
621 | json_decref(root); | |
622 | return false; | |
623 | } | |
624 | ||
625 | PrintAndLog("TLV param: %s[%d]=%s", tlvType, tlvLength, tlvValue); | |
626 | uint8_t buf[251] = {0}; | |
627 | size_t buflen = 0; | |
628 | ||
629 | // here max length must be 4, but now tlv_tag_t is 2-byte var. so let it be 2 by now... TODO: needs refactoring tlv_tag_t... | |
630 | if (!HexToBuffer("TLV Error type:", tlvType, buf, 2, &buflen)) { | |
631 | json_decref(root); | |
632 | return false; | |
633 | } | |
634 | tlv_tag_t tag = 0; | |
635 | for (int i = 0; i < buflen; i++) { | |
636 | tag = (tag << 8) + buf[i]; | |
637 | } | |
638 | ||
639 | if (!HexToBuffer("TLV Error value:", tlvValue, buf, sizeof(buf) - 1, &buflen)) { | |
640 | json_decref(root); | |
641 | return false; | |
642 | } | |
643 | ||
644 | if (buflen != tlvLength) { | |
645 | PrintAndLog("Load params: data [%d] length of HEX must(%d) be identical to length in TLV param(%d)", i + 1, buflen, tlvLength); | |
646 | json_decref(root); | |
647 | return false; | |
648 | } | |
649 | ||
650 | tlvdb_change_or_add_node(tlv, tag, tlvLength, (const unsigned char *)buf); | |
651 | } | |
652 | ||
653 | json_decref(root); | |
654 | ||
655 | return true; | |
656 | } | |
657 | ||
658 | void ParamLoadDefaults(struct tlvdb *tlvRoot) { | |
659 | //9F02:(Amount, authorized (Numeric)) len:6 | |
660 | TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00"); | |
661 | //9F1A:(Terminal Country Code) len:2 | |
662 | TLV_ADD(0x9F1A, "ru"); | |
663 | //5F2A:(Transaction Currency Code) len:2 | |
664 | // USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999 | |
665 | TLV_ADD(0x5F2A, "\x09\x80"); | |
666 | //9A:(Transaction Date) len:3 | |
667 | TLV_ADD(0x9A, "\x00\x00\x00"); | |
668 | //9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash | |
669 | TLV_ADD(0x9C, "\x00"); | |
670 | // 9F37 Unpredictable Number len:4 | |
671 | TLV_ADD(0x9F37, "\x01\x02\x03\x04"); | |
672 | // 9F6A Unpredictable Number (MSD for UDOL) len:4 | |
673 | TLV_ADD(0x9F6A, "\x01\x02\x03\x04"); | |
674 | //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 | |
675 | TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC | |
676 | } | |
677 | ||
3c5fce2b OM |
678 | int CmdHFEMVExec(const char *cmd) { |
679 | bool activateField = false; | |
680 | bool showAPDU = false; | |
681 | bool decodeTLV = false; | |
682 | bool forceSearch = false; | |
10d4f823 | 683 | enum TransactionType TrType = TT_MSD; |
d03fb293 | 684 | bool GenACGPO = false; |
556826b5 | 685 | bool paramLoadJSON = false; |
3c5fce2b OM |
686 | |
687 | uint8_t buf[APDU_RES_LEN] = {0}; | |
688 | size_t len = 0; | |
689 | uint16_t sw = 0; | |
690 | uint8_t AID[APDU_AID_LEN] = {0}; | |
691 | size_t AIDlen = 0; | |
d03fb293 OM |
692 | uint8_t ODAiList[4096]; |
693 | size_t ODAiListLen = 0; | |
3c5fce2b OM |
694 | |
695 | int res; | |
696 | ||
d03fb293 OM |
697 | struct tlvdb *tlvSelect = NULL; |
698 | struct tlvdb *tlvRoot = NULL; | |
699 | struct tlv *pdol_data_tlv = NULL; | |
700 | ||
3c5fce2b OM |
701 | if (strlen(cmd) < 1) { |
702 | UsageCmdHFEMVExec(); | |
703 | return 0; | |
704 | } | |
705 | ||
706 | int cmdp = 0; | |
707 | while(param_getchar(cmd, cmdp) != 0x00) { | |
708 | char c = param_getchar(cmd, cmdp); | |
709 | if ((c == '-') && (param_getlength(cmd, cmdp) == 2)) | |
710 | switch (param_getchar_indx(cmd, 1, cmdp)) { | |
711 | case 'h': | |
712 | case 'H': | |
7a7afeba | 713 | UsageCmdHFEMVExec(); |
3c5fce2b OM |
714 | return 0; |
715 | case 's': | |
716 | case 'S': | |
717 | activateField = true; | |
718 | break; | |
719 | case 'a': | |
720 | case 'A': | |
721 | showAPDU = true; | |
722 | break; | |
723 | case 't': | |
724 | case 'T': | |
725 | decodeTLV = true; | |
726 | break; | |
727 | case 'f': | |
728 | case 'F': | |
729 | forceSearch = true; | |
730 | break; | |
10d4f823 | 731 | case 'x': |
732 | case 'X': | |
733 | TrType = TT_VSDC; | |
734 | break; | |
735 | case 'v': | |
736 | case 'V': | |
737 | TrType = TT_QVSDCMCHIP; | |
738 | break; | |
739 | case 'c': | |
740 | case 'C': | |
741 | TrType = TT_CDA; | |
742 | break; | |
d03fb293 OM |
743 | case 'g': |
744 | case 'G': | |
745 | GenACGPO = true; | |
746 | break; | |
556826b5 OM |
747 | case 'j': |
748 | case 'J': | |
749 | paramLoadJSON = true; | |
750 | break; | |
3c5fce2b OM |
751 | default: |
752 | PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp)); | |
753 | return 1; | |
754 | } | |
755 | cmdp++; | |
756 | } | |
757 | ||
758 | ||
759 | // init applets list tree | |
3c5fce2b OM |
760 | const char *al = "Applets list"; |
761 | tlvSelect = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); | |
762 | ||
763 | // Application Selection | |
764 | // https://www.openscdp.org/scripts/tutorial/emv/applicationselection.html | |
765 | if (!forceSearch) { | |
766 | // PPSE | |
767 | PrintAndLog("\n* PPSE."); | |
768 | SetAPDULogging(showAPDU); | |
769 | res = EMVSearchPSE(activateField, true, decodeTLV, tlvSelect); | |
770 | ||
771 | // check PPSE and select application id | |
772 | if (!res) { | |
773 | TLVPrintAIDlistFromSelectTLV(tlvSelect); | |
774 | EMVSelectApplication(tlvSelect, AID, &AIDlen); | |
775 | } | |
776 | } | |
777 | ||
778 | // Search | |
779 | if (!AIDlen) { | |
780 | PrintAndLog("\n* Search AID in list."); | |
781 | SetAPDULogging(false); | |
782 | if (EMVSearch(activateField, true, decodeTLV, tlvSelect)) { | |
d03fb293 | 783 | dreturn(2); |
3c5fce2b OM |
784 | } |
785 | ||
786 | // check search and select application id | |
787 | TLVPrintAIDlistFromSelectTLV(tlvSelect); | |
788 | EMVSelectApplication(tlvSelect, AID, &AIDlen); | |
789 | } | |
790 | ||
791 | // Init TLV tree | |
3c5fce2b OM |
792 | const char *alr = "Root terminal TLV tree"; |
793 | tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); | |
794 | ||
795 | // check if we found EMV application on card | |
796 | if (!AIDlen) { | |
797 | PrintAndLog("Can't select AID. EMV AID not found"); | |
d03fb293 | 798 | dreturn(2); |
3c5fce2b OM |
799 | } |
800 | ||
801 | // Select | |
802 | PrintAndLog("\n* Selecting AID:%s", sprint_hex_inrow(AID, AIDlen)); | |
803 | SetAPDULogging(showAPDU); | |
804 | res = EMVSelect(false, true, AID, AIDlen, buf, sizeof(buf), &len, &sw, tlvRoot); | |
805 | ||
806 | if (res) { | |
807 | PrintAndLog("Can't select AID (%d). Exit...", res); | |
d03fb293 | 808 | dreturn(3); |
3c5fce2b OM |
809 | } |
810 | ||
811 | if (decodeTLV) | |
812 | TLVPrintFromBuffer(buf, len); | |
813 | PrintAndLog("* Selected."); | |
814 | ||
3c5fce2b OM |
815 | PrintAndLog("\n* Init transaction parameters."); |
816 | ||
556826b5 OM |
817 | ParamLoadDefaults(tlvRoot); |
818 | ||
819 | if (paramLoadJSON) { | |
820 | PrintAndLog("* * Transaction parameters loading from JSON..."); | |
821 | ParamLoadFromJson(tlvRoot); | |
822 | } | |
823 | ||
824 | //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 | |
d03fb293 OM |
825 | char *qVSDC = "\x26\x00\x00\x00"; |
826 | if (GenACGPO) { | |
827 | qVSDC = "\x26\x80\x00\x00"; | |
828 | } | |
10d4f823 | 829 | switch(TrType) { |
830 | case TT_MSD: | |
831 | TLV_ADD(0x9F66, "\x86\x00\x00\x00"); // MSD | |
832 | break; | |
d03fb293 | 833 | // not standard for contactless. just for test. |
10d4f823 | 834 | case TT_VSDC: |
835 | TLV_ADD(0x9F66, "\x46\x00\x00\x00"); // VSDC | |
836 | break; | |
837 | case TT_QVSDCMCHIP: | |
d03fb293 | 838 | TLV_ADD(0x9F66, qVSDC); // qVSDC |
10d4f823 | 839 | break; |
840 | case TT_CDA: | |
d03fb293 | 841 | TLV_ADD(0x9F66, qVSDC); // qVSDC (VISA CDA not enabled) |
10d4f823 | 842 | break; |
843 | default: | |
10d4f823 | 844 | break; |
845 | } | |
d03fb293 | 846 | |
66efdc1f | 847 | TLVPrintFromTLV(tlvRoot); // TODO delete!!! |
3c5fce2b OM |
848 | |
849 | PrintAndLog("\n* Calc PDOL."); | |
d03fb293 | 850 | pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83); |
3c5fce2b OM |
851 | if (!pdol_data_tlv){ |
852 | PrintAndLog("ERROR: can't create PDOL TLV."); | |
d03fb293 | 853 | dreturn(4); |
3c5fce2b OM |
854 | } |
855 | ||
856 | size_t pdol_data_tlv_data_len; | |
857 | unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); | |
858 | if (!pdol_data_tlv_data) { | |
859 | PrintAndLog("ERROR: can't create PDOL data."); | |
d03fb293 | 860 | dreturn(4); |
3c5fce2b OM |
861 | } |
862 | PrintAndLog("PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); | |
863 | ||
3c5fce2b OM |
864 | PrintAndLog("\n* GPO."); |
865 | res = EMVGPO(true, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); | |
866 | ||
10d4f823 | 867 | free(pdol_data_tlv_data); |
d03fb293 | 868 | //free(pdol_data_tlv); --- free on exit. |
3c5fce2b OM |
869 | |
870 | if (res) { | |
871 | PrintAndLog("GPO error(%d): %4x. Exit...", res, sw); | |
d03fb293 | 872 | dreturn(5); |
3c5fce2b OM |
873 | } |
874 | ||
875 | // process response template format 1 [id:80 2b AIP + x4b AFL] and format 2 [id:77 TLV] | |
876 | if (buf[0] == 0x80) { | |
3c5fce2b OM |
877 | if (decodeTLV){ |
878 | PrintAndLog("GPO response format1:"); | |
879 | TLVPrintFromBuffer(buf, len); | |
880 | } | |
3c5fce2b | 881 | |
66efdc1f | 882 | if (len < 4 || (len - 4) % 4) { |
883 | PrintAndLog("ERROR: GPO response format1 parsing error. length=%d", len); | |
884 | } else { | |
885 | // AIP | |
886 | struct tlvdb * f1AIP = tlvdb_fixed(0x82, 2, buf + 2); | |
887 | tlvdb_add(tlvRoot, f1AIP); | |
888 | if (decodeTLV){ | |
889 | PrintAndLog("\n* * Decode response format 1 (0x80) AIP and AFL:"); | |
890 | TLVPrintFromTLV(f1AIP); | |
891 | } | |
892 | ||
893 | // AFL | |
894 | struct tlvdb * f1AFL = tlvdb_fixed(0x94, len - 4, buf + 2 + 2); | |
895 | tlvdb_add(tlvRoot, f1AFL); | |
896 | if (decodeTLV) | |
897 | TLVPrintFromTLV(f1AFL); | |
898 | } | |
899 | } else { | |
3c5fce2b OM |
900 | if (decodeTLV) |
901 | TLVPrintFromBuffer(buf, len); | |
902 | } | |
903 | ||
66efdc1f | 904 | // extract PAN from track2 |
905 | { | |
906 | const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL); | |
907 | if (!tlvdb_get(tlvRoot, 0x5a, NULL) && track2 && track2->len >= 8) { | |
908 | struct tlvdb *pan = GetPANFromTrack2(track2); | |
909 | if (pan) { | |
910 | tlvdb_add(tlvRoot, pan); | |
911 | ||
912 | const struct tlv *pantlv = tlvdb_get(tlvRoot, 0x5a, NULL); | |
913 | PrintAndLog("\n* * Extracted PAN from track2: %s", sprint_hex(pantlv->value, pantlv->len)); | |
914 | } else { | |
915 | PrintAndLog("\n* * WARNING: Can't extract PAN from track2."); | |
916 | } | |
917 | } | |
918 | } | |
919 | ||
3c5fce2b OM |
920 | PrintAndLog("\n* Read records from AFL."); |
921 | const struct tlv *AFL = tlvdb_get(tlvRoot, 0x94, NULL); | |
922 | if (!AFL || !AFL->len) { | |
923 | PrintAndLog("WARNING: AFL not found."); | |
924 | } | |
925 | ||
926 | while(AFL && AFL->len) { | |
927 | if (AFL->len % 4) { | |
928 | PrintAndLog("ERROR: Wrong AFL length: %d", AFL->len); | |
929 | break; | |
930 | } | |
931 | ||
932 | for (int i = 0; i < AFL->len / 4; i++) { | |
933 | uint8_t SFI = AFL->value[i * 4 + 0] >> 3; | |
934 | uint8_t SFIstart = AFL->value[i * 4 + 1]; | |
935 | uint8_t SFIend = AFL->value[i * 4 + 2]; | |
936 | uint8_t SFIoffline = AFL->value[i * 4 + 3]; | |
937 | ||
938 | PrintAndLog("* * SFI[%02x] start:%02x end:%02x offline:%02x", SFI, SFIstart, SFIend, SFIoffline); | |
939 | if (SFI == 0 || SFI == 31 || SFIstart == 0 || SFIstart > SFIend) { | |
940 | PrintAndLog("SFI ERROR! Skipped..."); | |
941 | continue; | |
942 | } | |
943 | ||
944 | for(int n = SFIstart; n <= SFIend; n++) { | |
945 | PrintAndLog("* * * SFI[%02x] %d", SFI, n); | |
946 | ||
947 | res = EMVReadRecord(true, SFI, n, buf, sizeof(buf), &len, &sw, tlvRoot); | |
948 | if (res) { | |
949 | PrintAndLog("ERROR SFI[%02x]. APDU error %4x", SFI, sw); | |
950 | continue; | |
951 | } | |
952 | ||
953 | if (decodeTLV) { | |
954 | TLVPrintFromBuffer(buf, len); | |
955 | PrintAndLog(""); | |
956 | } | |
957 | ||
d03fb293 OM |
958 | // Build Input list for Offline Data Authentication |
959 | // EMV 4.3 book3 10.3, page 96 | |
3c5fce2b | 960 | if (SFIoffline) { |
d03fb293 OM |
961 | if (SFI < 11) { |
962 | const unsigned char *abuf = buf; | |
963 | size_t elmlen = len; | |
964 | struct tlv e; | |
965 | if (tlv_parse_tl(&abuf, &elmlen, &e)) { | |
966 | memcpy(&ODAiList[ODAiListLen], &buf[len - elmlen], elmlen); | |
967 | ODAiListLen += elmlen; | |
968 | } else { | |
969 | PrintAndLog("ERROR SFI[%02x]. Creating input list for Offline Data Authentication error.", SFI); | |
970 | } | |
971 | } else { | |
972 | memcpy(&ODAiList[ODAiListLen], buf, len); | |
973 | ODAiListLen += len; | |
974 | } | |
3c5fce2b OM |
975 | } |
976 | } | |
977 | } | |
978 | ||
979 | break; | |
980 | } | |
981 | ||
d03fb293 OM |
982 | // copy Input list for Offline Data Authentication |
983 | if (ODAiListLen) { | |
984 | struct tlvdb *oda = tlvdb_fixed(0x21, ODAiListLen, ODAiList); // not a standard tag | |
985 | tlvdb_add(tlvRoot, oda); | |
986 | PrintAndLog("* Input list for Offline Data Authentication added to TLV. len=%d \n", ODAiListLen); | |
987 | } | |
988 | ||
10d4f823 | 989 | // get AIP |
66efdc1f | 990 | const struct tlv *AIPtlv = tlvdb_get(tlvRoot, 0x82, NULL); |
991 | uint16_t AIP = AIPtlv->value[0] + AIPtlv->value[1] * 0x100; | |
10d4f823 | 992 | PrintAndLog("* * AIP=%04x", AIP); |
66efdc1f | 993 | |
10d4f823 | 994 | // SDA |
995 | if (AIP & 0x0040) { | |
996 | PrintAndLog("\n* SDA"); | |
d03fb293 | 997 | trSDA(tlvRoot); |
10d4f823 | 998 | } |
999 | ||
1000 | // DDA | |
1001 | if (AIP & 0x0020) { | |
1002 | PrintAndLog("\n* DDA"); | |
d03fb293 | 1003 | trDDA(decodeTLV, tlvRoot); |
10d4f823 | 1004 | } |
1005 | ||
1006 | // transaction check | |
1007 | ||
66efdc1f | 1008 | // qVSDC |
10d4f823 | 1009 | if (TrType == TT_QVSDCMCHIP|| TrType == TT_CDA){ |
66efdc1f | 1010 | // 9F26: Application Cryptogram |
1011 | const struct tlv *AC = tlvdb_get(tlvRoot, 0x9F26, NULL); | |
1012 | if (AC) { | |
1013 | PrintAndLog("\n--> qVSDC transaction."); | |
1014 | PrintAndLog("* AC path"); | |
1015 | ||
1016 | // 9F36: Application Transaction Counter (ATC) | |
1017 | const struct tlv *ATC = tlvdb_get(tlvRoot, 0x9F36, NULL); | |
1018 | if (ATC) { | |
1019 | ||
1020 | // 9F10: Issuer Application Data - optional | |
1021 | const struct tlv *IAD = tlvdb_get(tlvRoot, 0x9F10, NULL); | |
1022 | ||
1023 | // print AC data | |
1024 | PrintAndLog("ATC: %s", sprint_hex(ATC->value, ATC->len)); | |
1025 | PrintAndLog("AC: %s", sprint_hex(AC->value, AC->len)); | |
1026 | if (IAD){ | |
1027 | PrintAndLog("IAD: %s", sprint_hex(IAD->value, IAD->len)); | |
1028 | ||
1029 | if (IAD->len >= IAD->value[0] + 1) { | |
1030 | PrintAndLog("\tKey index: 0x%02x", IAD->value[1]); | |
1031 | PrintAndLog("\tCrypto ver: 0x%02x(%03d)", IAD->value[2], IAD->value[2]); | |
1032 | PrintAndLog("\tCVR:", sprint_hex(&IAD->value[3], IAD->value[0] - 2)); | |
1033 | struct tlvdb * cvr = tlvdb_fixed(0x20, IAD->value[0] - 2, &IAD->value[3]); | |
1034 | TLVPrintFromTLVLev(cvr, 1); | |
1035 | } | |
1036 | } else { | |
1037 | PrintAndLog("WARNING: IAD not found."); | |
1038 | } | |
1039 | ||
1040 | } else { | |
1041 | PrintAndLog("ERROR AC: Application Transaction Counter (ATC) not found."); | |
1042 | } | |
1043 | } | |
1044 | } | |
1045 | ||
10d4f823 | 1046 | // Mastercard M/CHIP |
1047 | if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD && (TrType == TT_QVSDCMCHIP || TrType == TT_CDA)){ | |
66efdc1f | 1048 | const struct tlv *CDOL1 = tlvdb_get(tlvRoot, 0x8c, NULL); |
1049 | if (CDOL1 && GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { // and m/chip transaction flag | |
10d4f823 | 1050 | PrintAndLog("\n--> Mastercard M/Chip transaction."); |
1051 | ||
1052 | PrintAndLog("* * Generate challenge"); | |
1053 | res = EMVGenerateChallenge(true, buf, sizeof(buf), &len, &sw, tlvRoot); | |
1054 | if (res) { | |
1055 | PrintAndLog("ERROR GetChallenge. APDU error %4x", sw); | |
d03fb293 | 1056 | dreturn(6); |
10d4f823 | 1057 | } |
1058 | if (len < 4) { | |
1059 | PrintAndLog("ERROR GetChallenge. Wrong challenge length %d", len); | |
d03fb293 | 1060 | dreturn(6); |
10d4f823 | 1061 | } |
1062 | ||
1063 | // ICC Dynamic Number | |
1064 | struct tlvdb * ICCDynN = tlvdb_fixed(0x9f4c, len, buf); | |
1065 | tlvdb_add(tlvRoot, ICCDynN); | |
1066 | if (decodeTLV){ | |
1067 | PrintAndLog("\n* * ICC Dynamic Number:"); | |
1068 | TLVPrintFromTLV(ICCDynN); | |
1069 | } | |
1070 | ||
1071 | PrintAndLog("* * Calc CDOL1"); | |
1072 | struct tlv *cdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x8c, NULL), tlvRoot, 0x01); // 0x01 - dummy tag | |
1073 | if (!cdol_data_tlv){ | |
1074 | PrintAndLog("ERROR: can't create CDOL1 TLV."); | |
d03fb293 | 1075 | dreturn(6); |
10d4f823 | 1076 | } |
1077 | PrintAndLog("CDOL1 data[%d]: %s", cdol_data_tlv->len, sprint_hex(cdol_data_tlv->value, cdol_data_tlv->len)); | |
1078 | ||
1079 | PrintAndLog("* * AC1"); | |
1080 | // EMVAC_TC + EMVAC_CDAREQ --- to get SDAD | |
1081 | 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); | |
1082 | ||
10d4f823 | 1083 | if (res) { |
1084 | PrintAndLog("AC1 error(%d): %4x. Exit...", res, sw); | |
d03fb293 | 1085 | dreturn(7); |
10d4f823 | 1086 | } |
1087 | ||
1088 | if (decodeTLV) | |
1089 | TLVPrintFromBuffer(buf, len); | |
1090 | ||
d03fb293 OM |
1091 | // CDA |
1092 | PrintAndLog("\n* CDA:"); | |
1093 | struct tlvdb *ac_tlv = tlvdb_parse_multi(buf, len); | |
1094 | res = trCDA(tlvRoot, ac_tlv, pdol_data_tlv, cdol_data_tlv); | |
1095 | if (res) { | |
1096 | PrintAndLog("CDA error (%d)", res); | |
1097 | } | |
1098 | free(ac_tlv); | |
1099 | free(cdol_data_tlv); | |
1100 | ||
1101 | PrintAndLog("\n* M/Chip transaction result:"); | |
10d4f823 | 1102 | // 9F27: Cryptogram Information Data (CID) |
1103 | const struct tlv *CID = tlvdb_get(tlvRoot, 0x9F27, NULL); | |
1104 | if (CID) { | |
1105 | emv_tag_dump(CID, stdout, 0); | |
1106 | PrintAndLog("------------------------------"); | |
1107 | if (CID->len > 0) { | |
1108 | switch(CID->value[0] & EMVAC_AC_MASK){ | |
1109 | case EMVAC_AAC: | |
1110 | PrintAndLog("Transaction DECLINED."); | |
1111 | break; | |
1112 | case EMVAC_TC: | |
1113 | PrintAndLog("Transaction approved OFFLINE."); | |
1114 | break; | |
1115 | case EMVAC_ARQC: | |
1116 | PrintAndLog("Transaction approved ONLINE."); | |
1117 | break; | |
1118 | default: | |
1119 | PrintAndLog("ERROR: CID transaction code error %2x", CID->value[0] & EMVAC_AC_MASK); | |
1120 | break; | |
1121 | } | |
1122 | } else { | |
1123 | PrintAndLog("ERROR: Wrong CID length %d", CID->len); | |
1124 | } | |
1125 | } else { | |
1126 | PrintAndLog("ERROR: CID(9F27) not found."); | |
1127 | } | |
66efdc1f | 1128 | |
1129 | } | |
1130 | } | |
1131 | ||
1132 | // MSD | |
10d4f823 | 1133 | if (AIP & 0x8000 && TrType == TT_MSD) { |
66efdc1f | 1134 | PrintAndLog("\n--> MSD transaction."); |
1135 | ||
66efdc1f | 1136 | PrintAndLog("* MSD dCVV path. Check dCVV"); |
1137 | ||
1138 | const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL); | |
1139 | if (track2) { | |
1140 | PrintAndLog("Track2: %s", sprint_hex(track2->value, track2->len)); | |
1141 | ||
1142 | struct tlvdb *dCVV = GetdCVVRawFromTrack2(track2); | |
1143 | PrintAndLog("dCVV raw data:"); | |
1144 | TLVPrintFromTLV(dCVV); | |
1145 | ||
1146 | if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { | |
1147 | PrintAndLog("\n* Mastercard calculate UDOL"); | |
1148 | ||
1149 | // UDOL (9F69) | |
1150 | const struct tlv *UDOL = tlvdb_get(tlvRoot, 0x9F69, NULL); | |
1151 | // UDOL(9F69) default: 9F6A (Unpredictable number) 4 bytes | |
1152 | const struct tlv defUDOL = { | |
1153 | .tag = 0x01, | |
1154 | .len = 3, | |
1155 | .value = (uint8_t *)"\x9f\x6a\x04", | |
1156 | }; | |
1157 | if (!UDOL) | |
1158 | PrintAndLog("Use default UDOL."); | |
1159 | ||
10d4f823 | 1160 | struct tlv *udol_data_tlv = dol_process(UDOL ? UDOL : &defUDOL, tlvRoot, 0x01); // 0x01 - dummy tag |
66efdc1f | 1161 | if (!udol_data_tlv){ |
1162 | PrintAndLog("ERROR: can't create UDOL TLV."); | |
d03fb293 | 1163 | dreturn(8); |
66efdc1f | 1164 | } |
66efdc1f | 1165 | |
78528074 | 1166 | PrintAndLog("UDOL data[%d]: %s", udol_data_tlv->len, sprint_hex(udol_data_tlv->value, udol_data_tlv->len)); |
66efdc1f | 1167 | |
1168 | PrintAndLog("\n* Mastercard compute cryptographic checksum(UDOL)"); | |
1169 | ||
78528074 | 1170 | res = MSCComputeCryptoChecksum(true, (uint8_t *)udol_data_tlv->value, udol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); |
66efdc1f | 1171 | if (res) { |
1172 | PrintAndLog("ERROR Compute Crypto Checksum. APDU error %4x", sw); | |
d03fb293 OM |
1173 | free(udol_data_tlv); |
1174 | dreturn(9); | |
66efdc1f | 1175 | } |
1176 | ||
1177 | if (decodeTLV) { | |
1178 | TLVPrintFromBuffer(buf, len); | |
1179 | PrintAndLog(""); | |
1180 | } | |
d03fb293 | 1181 | free(udol_data_tlv); |
66efdc1f | 1182 | |
1183 | } | |
1184 | } else { | |
1185 | PrintAndLog("ERROR MSD: Track2 data not found."); | |
1186 | } | |
1187 | } | |
d03fb293 | 1188 | |
3c5fce2b OM |
1189 | // DropField |
1190 | DropField(); | |
1191 | ||
1192 | // Destroy TLV's | |
d03fb293 | 1193 | free(pdol_data_tlv); |
3c5fce2b OM |
1194 | tlvdb_free(tlvSelect); |
1195 | tlvdb_free(tlvRoot); | |
1196 | ||
1197 | PrintAndLog("\n* Transaction completed."); | |
1198 | ||
1199 | return 0; | |
1200 | } | |
1201 | ||
556826b5 OM |
1202 | int UsageCmdHFEMVScan(void) { |
1203 | PrintAndLog("HELP : Scan EMV card and save it contents to a file. \n"); | |
1204 | PrintAndLog(" It executes EMV contactless transaction and saves result to a file which can be used for emulation.\n"); | |
1205 | PrintAndLog("Usage: hf emv scan [-a][-t][-v][-c][-x][-g] <file_name>\n"); | |
1206 | PrintAndLog(" Options:"); | |
1207 | PrintAndLog(" -a : show APDU reqests and responses\n"); | |
1208 | PrintAndLog(" -t : TLV decode results\n"); | |
1209 | PrintAndLog(" -v : transaction type - qVSDC or M/Chip.\n"); | |
1210 | PrintAndLog(" -c : transaction type - qVSDC or M/Chip plus CDA (SDAD generation).\n"); | |
1211 | PrintAndLog(" -x : transaction type - VSDC. For test only. Not a standart behavior.\n"); | |
1212 | PrintAndLog(" -g : VISA. generate AC from GPO\n"); | |
1213 | PrintAndLog("By default : transaction type - MSD.\n"); | |
1214 | PrintAndLog("Samples:"); | |
1215 | PrintAndLog(" hf emv scan -a -t -> scan MSD transaction mode"); | |
1216 | PrintAndLog(" hf emv scan -a -t -c -> scan CDA transaction mode"); | |
1217 | return 0; | |
1218 | } | |
1219 | ||
1220 | int CmdHFEMVScan(const char *cmd) { | |
1221 | UsageCmdHFEMVScan(); | |
1222 | ||
1223 | return 0; | |
1224 | } | |
1225 | ||
d03fb293 OM |
1226 | int CmdHFEMVTest(const char *cmd) { |
1227 | return ExecuteCryptoTests(true); | |
1228 | } | |
1229 | ||
3c5fce2b OM |
1230 | int CmdHelp(const char *Cmd); |
1231 | static command_t CommandTable[] = { | |
626e650f | 1232 | {"help", CmdHelp, 1, "This help"}, |
1233 | {"exec", CmdHFEMVExec, 0, "Executes EMV contactless transaction."}, | |
1234 | {"pse", CmdHFEMVPPSE, 0, "Execute PPSE. It selects 2PAY.SYS.DDF01 or 1PAY.SYS.DDF01 directory."}, | |
1235 | {"search", CmdHFEMVSearch, 0, "Try to select all applets from applets list and print installed applets."}, | |
1236 | {"select", CmdHFEMVSelect, 0, "Select applet."}, | |
1237 | {"gpo", CmdHFEMVGPO, 0, "Execute GetProcessingOptions."}, | |
1238 | {"readrec", CmdHFEMVReadRecord, 0, "Read files from card."}, | |
1239 | {"genac", CmdHFEMVAC, 0, "Generate ApplicationCryptogram."}, | |
1240 | {"challenge", CmdHFEMVGenerateChallenge, 0, "Generate challenge."}, | |
1241 | {"intauth", CmdHFEMVInternalAuthenticate, 0, "Internal authentication."}, | |
556826b5 | 1242 | // {"scan", CmdHFEMVScan, 0, "Scan EMV card and save it contents to json file for emulator."}, |
11a78e04 | 1243 | {"test", CmdHFEMVTest, 0, "Crypto logic test."}, |
3c5fce2b OM |
1244 | {NULL, NULL, 0, NULL} |
1245 | }; | |
1246 | ||
1247 | int CmdHFEMV(const char *Cmd) { | |
1248 | CmdsParse(CommandTable, Cmd); | |
1249 | return 0; | |
1250 | } | |
1251 | ||
1252 | int CmdHelp(const char *Cmd) { | |
1253 | CmdsHelp(CommandTable); | |
1254 | return 0; | |
1255 | } |