| 1 | //----------------------------------------------------------------------------- |
| 2 | // Copyright (C) 2017, 2018 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 "cmdemv.h" |
| 12 | |
| 13 | #include <ctype.h> |
| 14 | #include <string.h> |
| 15 | #include "proxmark3.h" |
| 16 | #include "cmdparser.h" |
| 17 | #include "ui.h" |
| 18 | #include "util.h" |
| 19 | #include "mifare.h" |
| 20 | #include "emvjson.h" |
| 21 | #include "emv_pki.h" |
| 22 | #include "emvcore.h" |
| 23 | #include "test/cryptotest.h" |
| 24 | #include "cliparser/cliparser.h" |
| 25 | #include "jansson.h" |
| 26 | #include "emv_roca.h" |
| 27 | #include "pcsc.h" |
| 28 | #include "apduinfo.h" |
| 29 | #include "dol.h" |
| 30 | #include "emv_tags.h" |
| 31 | #include "cmdhf14a.h" |
| 32 | #include "cmdsmartcard.h" |
| 33 | |
| 34 | #define TLV_ADD(tag, value)( tlvdb_change_or_add_node(tlvRoot, tag, sizeof(value) - 1, (const unsigned char *)value) ) |
| 35 | void ParamLoadDefaults(struct tlvdb *tlvRoot) { |
| 36 | //9F02:(Amount, authorized (Numeric)) len:6 |
| 37 | TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00"); |
| 38 | //9F1A:(Terminal Country Code) len:2 |
| 39 | TLV_ADD(0x9F1A, "ru"); |
| 40 | //5F2A:(Transaction Currency Code) len:2 |
| 41 | // USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999 |
| 42 | TLV_ADD(0x5F2A, "\x09\x80"); |
| 43 | //9A:(Transaction Date) len:3 |
| 44 | TLV_ADD(0x9A, "\x00\x00\x00"); |
| 45 | //9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash |
| 46 | TLV_ADD(0x9C, "\x00"); |
| 47 | // 9F37 Unpredictable Number len:4 |
| 48 | TLV_ADD(0x9F37, "\x01\x02\x03\x04"); |
| 49 | // 9F6A Unpredictable Number (MSD for UDOL) len:4 |
| 50 | TLV_ADD(0x9F6A, "\x01\x02\x03\x04"); |
| 51 | //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 |
| 52 | TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC |
| 53 | //95:(Terminal Verification Results) len:5 |
| 54 | // all OK TVR |
| 55 | TLV_ADD(0x95, "\x00\x00\x00\x00\x00"); |
| 56 | } |
| 57 | |
| 58 | void PrintChannel(EMVCommandChannel channel) { |
| 59 | switch(channel) { |
| 60 | case ECC_CONTACTLESS: |
| 61 | PrintAndLogEx(INFO, "Channel: CONTACTLESS"); |
| 62 | break; |
| 63 | case ECC_CONTACT: |
| 64 | PrintAndLogEx(INFO, "Channel: CONTACT, using %s", getAlternativeSmartcardReader()); |
| 65 | break; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | int CmdEMVSelect(const char *cmd) { |
| 70 | uint8_t data[APDU_DATA_LEN] = {0}; |
| 71 | int datalen = 0; |
| 72 | |
| 73 | CLIParserInit("emv select", |
| 74 | "Executes select applet command", |
| 75 | "Usage:\n\temv select -s a00000000101 -> select card, select applet\n\temv select -st a00000000101 -> select card, select applet, show result in TLV\n"); |
| 76 | |
| 77 | void* argtable[] = { |
| 78 | arg_param_begin, |
| 79 | arg_lit0("sS", "select", "activate field and select card"), |
| 80 | arg_lit0("kK", "keep", "keep field for next command"), |
| 81 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), |
| 82 | arg_lit0("tT", "tlv", "TLV decode results"), |
| 83 | #ifdef WITH_SMARTCARD |
| 84 | arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), |
| 85 | #endif |
| 86 | arg_strx0(NULL, NULL, "<HEX applet AID>", NULL), |
| 87 | arg_param_end |
| 88 | }; |
| 89 | CLIExecWithReturn(cmd, argtable, true); |
| 90 | |
| 91 | bool activateField = arg_get_lit(1); |
| 92 | bool leaveSignalON = arg_get_lit(2); |
| 93 | bool APDULogging = arg_get_lit(3); |
| 94 | bool decodeTLV = arg_get_lit(4); |
| 95 | EMVCommandChannel channel = ECC_CONTACTLESS; |
| 96 | #ifdef WITH_SMARTCARD |
| 97 | if (arg_get_lit(5)) |
| 98 | channel = ECC_CONTACT; |
| 99 | PrintChannel(channel); |
| 100 | CLIGetHexWithReturn(6, data, &datalen); |
| 101 | #else |
| 102 | CLIGetHexWithReturn(5, data, &datalen); |
| 103 | #endif |
| 104 | CLIParserFree(); |
| 105 | |
| 106 | SetAPDULogging(APDULogging); |
| 107 | |
| 108 | // exec |
| 109 | uint8_t buf[APDU_RESPONSE_LEN] = {0}; |
| 110 | size_t len = 0; |
| 111 | uint16_t sw = 0; |
| 112 | int res = EMVSelect(channel, activateField, leaveSignalON, data, datalen, buf, sizeof(buf), &len, &sw, NULL); |
| 113 | |
| 114 | if (sw) |
| 115 | PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); |
| 116 | |
| 117 | if (res) |
| 118 | return res; |
| 119 | |
| 120 | if (decodeTLV) |
| 121 | TLVPrintFromBuffer(buf, len); |
| 122 | |
| 123 | return 0; |
| 124 | } |
| 125 | |
| 126 | int CmdEMVSearch(const char *cmd) { |
| 127 | |
| 128 | CLIParserInit("emv search", |
| 129 | "Tries to select all applets from applet list:\n", |
| 130 | "Usage:\n\temv search -s -> select card and search\n\temv search -st -> select card, search and show result in TLV\n"); |
| 131 | |
| 132 | void* argtable[] = { |
| 133 | arg_param_begin, |
| 134 | arg_lit0("sS", "select", "activate field and select card"), |
| 135 | arg_lit0("kK", "keep", "keep field ON for next command"), |
| 136 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), |
| 137 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), |
| 138 | #ifdef WITH_SMARTCARD |
| 139 | arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), |
| 140 | #endif |
| 141 | arg_param_end |
| 142 | }; |
| 143 | CLIExecWithReturn(cmd, argtable, true); |
| 144 | |
| 145 | bool activateField = arg_get_lit(1); |
| 146 | bool leaveSignalON = arg_get_lit(2); |
| 147 | bool APDULogging = arg_get_lit(3); |
| 148 | bool decodeTLV = arg_get_lit(4); |
| 149 | EMVCommandChannel channel = ECC_CONTACTLESS; |
| 150 | #ifdef WITH_SMARTCARD |
| 151 | if (arg_get_lit(5)) |
| 152 | channel = ECC_CONTACT; |
| 153 | #endif |
| 154 | PrintChannel(channel); |
| 155 | CLIParserFree(); |
| 156 | |
| 157 | SetAPDULogging(APDULogging); |
| 158 | |
| 159 | struct tlvdb *t = NULL; |
| 160 | const char *al = "Applets list"; |
| 161 | t = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); |
| 162 | |
| 163 | if (EMVSearch(channel, activateField, leaveSignalON, decodeTLV, t)) { |
| 164 | tlvdb_free(t); |
| 165 | return 2; |
| 166 | } |
| 167 | |
| 168 | PrintAndLogEx(SUCCESS, "Search completed."); |
| 169 | |
| 170 | // print list here |
| 171 | if (!decodeTLV) { |
| 172 | TLVPrintAIDlistFromSelectTLV(t); |
| 173 | } |
| 174 | |
| 175 | tlvdb_free(t); |
| 176 | |
| 177 | return 0; |
| 178 | } |
| 179 | |
| 180 | int CmdEMVPPSE(const char *cmd) { |
| 181 | |
| 182 | CLIParserInit("emv pse", |
| 183 | "Executes PSE/PPSE select command. It returns list of applet on the card:\n", |
| 184 | "Usage:\n\temv pse -s1 -> select, get pse\n\temv pse -st2 -> select, get ppse, show result in TLV\n"); |
| 185 | |
| 186 | void* argtable[] = { |
| 187 | arg_param_begin, |
| 188 | arg_lit0("sS", "select", "activate field and select card"), |
| 189 | arg_lit0("kK", "keep", "keep field ON for next command"), |
| 190 | arg_lit0("1", "pse", "pse (1PAY.SYS.DDF01) mode"), |
| 191 | arg_lit0("2", "ppse", "ppse (2PAY.SYS.DDF01) mode (default mode)"), |
| 192 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), |
| 193 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), |
| 194 | #ifdef WITH_SMARTCARD |
| 195 | arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), |
| 196 | #endif |
| 197 | arg_param_end |
| 198 | }; |
| 199 | CLIExecWithReturn(cmd, argtable, true); |
| 200 | |
| 201 | bool activateField = arg_get_lit(1); |
| 202 | bool leaveSignalON = arg_get_lit(2); |
| 203 | uint8_t PSENum = 2; |
| 204 | if (arg_get_lit(3)) |
| 205 | PSENum = 1; |
| 206 | if (arg_get_lit(4)) |
| 207 | PSENum = 2; |
| 208 | bool APDULogging = arg_get_lit(5); |
| 209 | bool decodeTLV = arg_get_lit(6); |
| 210 | EMVCommandChannel channel = ECC_CONTACTLESS; |
| 211 | #ifdef WITH_SMARTCARD |
| 212 | if (arg_get_lit(7)) |
| 213 | channel = ECC_CONTACT; |
| 214 | #endif |
| 215 | PrintChannel(channel); |
| 216 | CLIParserFree(); |
| 217 | |
| 218 | SetAPDULogging(APDULogging); |
| 219 | |
| 220 | // exec |
| 221 | uint8_t buf[APDU_RESPONSE_LEN] = {0}; |
| 222 | size_t len = 0; |
| 223 | uint16_t sw = 0; |
| 224 | int res = EMVSelectPSE(channel, activateField, leaveSignalON, PSENum, buf, sizeof(buf), &len, &sw); |
| 225 | |
| 226 | if (sw) |
| 227 | PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); |
| 228 | |
| 229 | if (res) |
| 230 | return res; |
| 231 | |
| 232 | |
| 233 | if (decodeTLV) |
| 234 | TLVPrintFromBuffer(buf, len); |
| 235 | |
| 236 | return 0; |
| 237 | } |
| 238 | |
| 239 | int CmdEMVGPO(const char *cmd) { |
| 240 | uint8_t data[APDU_RESPONSE_LEN] = {0}; |
| 241 | int datalen = 0; |
| 242 | |
| 243 | CLIParserInit("emv gpo", |
| 244 | "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.", |
| 245 | "Usage:\n\temv gpo -k -> execute GPO\n" |
| 246 | "\temv gpo -t 01020304 -> execute GPO with 4-byte PDOL data, show result in TLV\n" |
| 247 | "\temv gpo -pmt 9F 37 04 -> load params from file, make PDOL data from PDOL, execute GPO with PDOL, show result in TLV\n"); |
| 248 | |
| 249 | void* argtable[] = { |
| 250 | arg_param_begin, |
| 251 | arg_lit0("kK", "keep", "keep field ON for next command"), |
| 252 | arg_lit0("pP", "params", "load parameters from `emv/defparams.json` file for PDOLdata making from PDOL and parameters"), |
| 253 | arg_lit0("mM", "make", "make PDOLdata from PDOL (tag 9F38) and parameters (by default uses default parameters)"), |
| 254 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), |
| 255 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), |
| 256 | #ifdef WITH_SMARTCARD |
| 257 | arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), |
| 258 | #endif |
| 259 | arg_strx0(NULL, NULL, "<HEX PDOLdata/PDOL>", NULL), |
| 260 | arg_param_end |
| 261 | }; |
| 262 | CLIExecWithReturn(cmd, argtable, true); |
| 263 | |
| 264 | bool leaveSignalON = arg_get_lit(1); |
| 265 | bool paramsLoadFromFile = arg_get_lit(2); |
| 266 | bool dataMakeFromPDOL = arg_get_lit(3); |
| 267 | bool APDULogging = arg_get_lit(4); |
| 268 | bool decodeTLV = arg_get_lit(5); |
| 269 | EMVCommandChannel channel = ECC_CONTACTLESS; |
| 270 | #ifdef WITH_SMARTCARD |
| 271 | if (arg_get_lit(6)) |
| 272 | channel = ECC_CONTACT; |
| 273 | CLIGetHexWithReturn(7, data, &datalen); |
| 274 | #else |
| 275 | CLIGetHexWithReturn(6, data, &datalen); |
| 276 | #endif |
| 277 | PrintChannel(channel); |
| 278 | CLIParserFree(); |
| 279 | |
| 280 | SetAPDULogging(APDULogging); |
| 281 | |
| 282 | // Init TLV tree |
| 283 | const char *alr = "Root terminal TLV tree"; |
| 284 | struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); |
| 285 | |
| 286 | // calc PDOL |
| 287 | struct tlv *pdol_data_tlv = NULL; |
| 288 | struct tlv data_tlv = { |
| 289 | .tag = 0x83, |
| 290 | .len = datalen, |
| 291 | .value = (uint8_t *)data, |
| 292 | }; |
| 293 | if (dataMakeFromPDOL) { |
| 294 | ParamLoadDefaults(tlvRoot); |
| 295 | |
| 296 | if (paramsLoadFromFile) { |
| 297 | PrintAndLogEx(INFO, "Params loading from file..."); |
| 298 | ParamLoadFromJson(tlvRoot); |
| 299 | }; |
| 300 | |
| 301 | pdol_data_tlv = dol_process((const struct tlv *)tlvdb_external(0x9f38, datalen, data), tlvRoot, 0x83); |
| 302 | if (!pdol_data_tlv){ |
| 303 | PrintAndLogEx(ERR, "Can't create PDOL TLV."); |
| 304 | tlvdb_free(tlvRoot); |
| 305 | return 4; |
| 306 | } |
| 307 | } else { |
| 308 | if (paramsLoadFromFile) { |
| 309 | PrintAndLogEx(WARNING, "Don't need to load parameters. Sending plain PDOL data..."); |
| 310 | } |
| 311 | pdol_data_tlv = &data_tlv; |
| 312 | } |
| 313 | |
| 314 | size_t pdol_data_tlv_data_len = 0; |
| 315 | unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); |
| 316 | if (!pdol_data_tlv_data) { |
| 317 | PrintAndLogEx(ERR, "Can't create PDOL data."); |
| 318 | tlvdb_free(tlvRoot); |
| 319 | return 4; |
| 320 | } |
| 321 | PrintAndLogEx(INFO, "PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); |
| 322 | |
| 323 | // exec |
| 324 | uint8_t buf[APDU_RESPONSE_LEN] = {0}; |
| 325 | size_t len = 0; |
| 326 | uint16_t sw = 0; |
| 327 | int res = EMVGPO(channel, leaveSignalON, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 328 | |
| 329 | if (pdol_data_tlv != &data_tlv) |
| 330 | free(pdol_data_tlv); |
| 331 | tlvdb_free(tlvRoot); |
| 332 | |
| 333 | if (sw) |
| 334 | PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); |
| 335 | |
| 336 | if (res) |
| 337 | return res; |
| 338 | |
| 339 | if (decodeTLV) |
| 340 | TLVPrintFromBuffer(buf, len); |
| 341 | |
| 342 | return 0; |
| 343 | } |
| 344 | |
| 345 | int CmdEMVReadRecord(const char *cmd) { |
| 346 | uint8_t data[APDU_RESPONSE_LEN] = {0}; |
| 347 | int datalen = 0; |
| 348 | |
| 349 | CLIParserInit("emv readrec", |
| 350 | "Executes Read Record command. It returns data in TLV format.\nNeeds a bank applet to be selected and sometimes needs GPO to be executed.", |
| 351 | "Usage:\n\temv readrec -k 0101 -> read file SFI=01, SFIrec=01\n\temv readrec -kt 0201-> read file 0201 and show result in TLV\n"); |
| 352 | |
| 353 | void* argtable[] = { |
| 354 | arg_param_begin, |
| 355 | arg_lit0("kK", "keep", "keep field ON for next command"), |
| 356 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), |
| 357 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), |
| 358 | arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), |
| 359 | arg_strx1(NULL, NULL, "<SFI 1byte HEX><SFIrecord 1byte HEX>", NULL), |
| 360 | arg_param_end |
| 361 | }; |
| 362 | CLIExecWithReturn(cmd, argtable, true); |
| 363 | |
| 364 | bool leaveSignalON = arg_get_lit(1); |
| 365 | bool APDULogging = arg_get_lit(2); |
| 366 | bool decodeTLV = arg_get_lit(3); |
| 367 | EMVCommandChannel channel = ECC_CONTACTLESS; |
| 368 | #ifdef WITH_SMARTCARD |
| 369 | if (arg_get_lit(4)) |
| 370 | channel = ECC_CONTACT; |
| 371 | CLIGetHexWithReturn(5, data, &datalen); |
| 372 | #else |
| 373 | CLIGetHexWithReturn(4, data, &datalen); |
| 374 | #endif |
| 375 | PrintChannel(channel); |
| 376 | CLIParserFree(); |
| 377 | |
| 378 | if (datalen != 2) { |
| 379 | PrintAndLogEx(ERR, "Command needs to have 2 bytes of data"); |
| 380 | return 1; |
| 381 | } |
| 382 | |
| 383 | SetAPDULogging(APDULogging); |
| 384 | |
| 385 | // exec |
| 386 | uint8_t buf[APDU_RESPONSE_LEN] = {0}; |
| 387 | size_t len = 0; |
| 388 | uint16_t sw = 0; |
| 389 | int res = EMVReadRecord(channel, leaveSignalON, data[0], data[1], buf, sizeof(buf), &len, &sw, NULL); |
| 390 | |
| 391 | if (sw) |
| 392 | PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); |
| 393 | |
| 394 | if (res) |
| 395 | return res; |
| 396 | |
| 397 | |
| 398 | if (decodeTLV) |
| 399 | TLVPrintFromBuffer(buf, len); |
| 400 | |
| 401 | return 0; |
| 402 | } |
| 403 | |
| 404 | int CmdEMVAC(const char *cmd) { |
| 405 | uint8_t data[APDU_RESPONSE_LEN] = {0}; |
| 406 | int datalen = 0; |
| 407 | |
| 408 | CLIParserInit("emv genac", |
| 409 | "Generate Application Cryptogram command. It returns data in TLV format .\nNeeds a EMV applet to be selected and GPO to be executed.", |
| 410 | "Usage:\n\temv genac -k 0102 -> generate AC with 2-byte CDOLdata and keep field ON after command\n" |
| 411 | "\temv genac -t 01020304 -> generate AC with 4-byte CDOL data, show result in TLV\n" |
| 412 | "\temv genac -Daac 01020304 -> generate AC with 4-byte CDOL data and terminal decision 'declined'\n" |
| 413 | "\temv genac -pmt 9F 37 04 -> load params from file, make CDOL data from CDOL, generate AC with CDOL, show result in TLV"); |
| 414 | |
| 415 | void* argtable[] = { |
| 416 | arg_param_begin, |
| 417 | arg_lit0("kK", "keep", "keep field ON for next command"), |
| 418 | arg_lit0("cC", "cda", "executes CDA transaction. Needs to get SDAD in results."), |
| 419 | arg_str0("dD", "decision", "<aac|tc|arqc>", "Terminal decision. aac - declined, tc - approved, arqc - online authorisation requested"), |
| 420 | arg_lit0("pP", "params", "load parameters from `emv/defparams.json` file for CDOLdata making from CDOL and parameters"), |
| 421 | arg_lit0("mM", "make", "make CDOLdata from CDOL (tag 8C and 8D) and parameters (by default uses default parameters)"), |
| 422 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), |
| 423 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), |
| 424 | #ifdef WITH_SMARTCARD |
| 425 | arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), |
| 426 | #endif |
| 427 | arg_strx1(NULL, NULL, "<HEX CDOLdata/CDOL>", NULL), |
| 428 | arg_param_end |
| 429 | }; |
| 430 | CLIExecWithReturn(cmd, argtable, false); |
| 431 | |
| 432 | bool leaveSignalON = arg_get_lit(1); |
| 433 | bool trTypeCDA = arg_get_lit(2); |
| 434 | uint8_t termDecision = 0xff; |
| 435 | if (arg_get_str_len(3)) { |
| 436 | if (!strncmp(arg_get_str(3)->sval[0], "aac", 4)) |
| 437 | termDecision = EMVAC_AAC; |
| 438 | if (!strncmp(arg_get_str(3)->sval[0], "tc", 4)) |
| 439 | termDecision = EMVAC_TC; |
| 440 | if (!strncmp(arg_get_str(3)->sval[0], "arqc", 4)) |
| 441 | termDecision = EMVAC_ARQC; |
| 442 | |
| 443 | if (termDecision == 0xff) { |
| 444 | PrintAndLog("ERROR: can't find terminal decision '%s'", arg_get_str(3)->sval[0]); |
| 445 | return 1; |
| 446 | } |
| 447 | } else { |
| 448 | termDecision = EMVAC_TC; |
| 449 | } |
| 450 | if (trTypeCDA) |
| 451 | termDecision = termDecision | EMVAC_CDAREQ; |
| 452 | bool paramsLoadFromFile = arg_get_lit(4); |
| 453 | bool dataMakeFromCDOL = arg_get_lit(5); |
| 454 | bool APDULogging = arg_get_lit(6); |
| 455 | bool decodeTLV = arg_get_lit(7); |
| 456 | EMVCommandChannel channel = ECC_CONTACTLESS; |
| 457 | #ifdef WITH_SMARTCARD |
| 458 | if (arg_get_lit(8)) |
| 459 | channel = ECC_CONTACT; |
| 460 | CLIGetHexWithReturn(9, data, &datalen); |
| 461 | #else |
| 462 | CLIGetHexWithReturn(8, data, &datalen); |
| 463 | #endif |
| 464 | PrintChannel(channel); |
| 465 | CLIParserFree(); |
| 466 | |
| 467 | SetAPDULogging(APDULogging); |
| 468 | |
| 469 | // Init TLV tree |
| 470 | const char *alr = "Root terminal TLV tree"; |
| 471 | struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); |
| 472 | |
| 473 | // calc CDOL |
| 474 | struct tlv *cdol_data_tlv = NULL; |
| 475 | struct tlv data_tlv = { |
| 476 | .tag = 0x01, |
| 477 | .len = datalen, |
| 478 | .value = (uint8_t *)data, |
| 479 | }; |
| 480 | |
| 481 | if (dataMakeFromCDOL) { |
| 482 | ParamLoadDefaults(tlvRoot); |
| 483 | |
| 484 | if (paramsLoadFromFile) { |
| 485 | PrintAndLogEx(INFO, "Params loading from file..."); |
| 486 | ParamLoadFromJson(tlvRoot); |
| 487 | }; |
| 488 | |
| 489 | cdol_data_tlv = dol_process((const struct tlv *)tlvdb_external(0x8c, datalen, data), tlvRoot, 0x01); // 0x01 - dummy tag |
| 490 | if (!cdol_data_tlv){ |
| 491 | PrintAndLogEx(ERR, "Can't create CDOL TLV."); |
| 492 | tlvdb_free(tlvRoot); |
| 493 | return 4; |
| 494 | } |
| 495 | } else { |
| 496 | if (paramsLoadFromFile) { |
| 497 | PrintAndLogEx(WARNING, "Don't need to load parameters. Sending plain CDOL data..."); |
| 498 | } |
| 499 | cdol_data_tlv = &data_tlv; |
| 500 | } |
| 501 | |
| 502 | PrintAndLogEx(INFO, "CDOL data[%d]: %s", cdol_data_tlv->len, sprint_hex(cdol_data_tlv->value, cdol_data_tlv->len)); |
| 503 | |
| 504 | // exec |
| 505 | uint8_t buf[APDU_RESPONSE_LEN] = {0}; |
| 506 | size_t len = 0; |
| 507 | uint16_t sw = 0; |
| 508 | int res = EMVAC(channel, leaveSignalON, termDecision, (uint8_t *)cdol_data_tlv->value, cdol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 509 | |
| 510 | if (cdol_data_tlv != &data_tlv) |
| 511 | free(cdol_data_tlv); |
| 512 | tlvdb_free(tlvRoot); |
| 513 | |
| 514 | if (sw) |
| 515 | PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); |
| 516 | |
| 517 | if (res) |
| 518 | return res; |
| 519 | |
| 520 | if (decodeTLV) |
| 521 | TLVPrintFromBuffer(buf, len); |
| 522 | |
| 523 | return 0; |
| 524 | } |
| 525 | |
| 526 | int CmdEMVGenerateChallenge(const char *cmd) { |
| 527 | |
| 528 | CLIParserInit("emv challenge", |
| 529 | "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.", |
| 530 | "Usage:\n\temv challenge -> get challenge\n\temv challenge -k -> get challenge, keep fileld ON\n"); |
| 531 | |
| 532 | void* argtable[] = { |
| 533 | arg_param_begin, |
| 534 | arg_lit0("kK", "keep", "keep field ON for next command"), |
| 535 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), |
| 536 | #ifdef WITH_SMARTCARD |
| 537 | arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), |
| 538 | #endif |
| 539 | arg_param_end |
| 540 | }; |
| 541 | CLIExecWithReturn(cmd, argtable, true); |
| 542 | |
| 543 | bool leaveSignalON = arg_get_lit(1); |
| 544 | bool APDULogging = arg_get_lit(2); |
| 545 | EMVCommandChannel channel = ECC_CONTACTLESS; |
| 546 | #ifdef WITH_SMARTCARD |
| 547 | if (arg_get_lit(3)) |
| 548 | channel = ECC_CONTACT; |
| 549 | #endif |
| 550 | PrintChannel(channel); |
| 551 | CLIParserFree(); |
| 552 | |
| 553 | SetAPDULogging(APDULogging); |
| 554 | |
| 555 | // exec |
| 556 | uint8_t buf[APDU_RESPONSE_LEN] = {0}; |
| 557 | size_t len = 0; |
| 558 | uint16_t sw = 0; |
| 559 | int res = EMVGenerateChallenge(channel, leaveSignalON, buf, sizeof(buf), &len, &sw, NULL); |
| 560 | |
| 561 | if (sw) |
| 562 | PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); |
| 563 | |
| 564 | if (res) |
| 565 | return res; |
| 566 | |
| 567 | PrintAndLogEx(SUCCESS, "Challenge: %s", sprint_hex(buf, len)); |
| 568 | |
| 569 | if (len != 4 && len != 8) |
| 570 | PrintAndLogEx(WARNING, "Length of challenge must be 4 or 8, but it %d", len); |
| 571 | |
| 572 | return 0; |
| 573 | } |
| 574 | |
| 575 | int CmdEMVInternalAuthenticate(const char *cmd) { |
| 576 | uint8_t data[APDU_RESPONSE_LEN] = {0}; |
| 577 | int datalen = 0; |
| 578 | |
| 579 | CLIParserInit("emv intauth", |
| 580 | "Generate Internal Authenticate command. Usually needs 4-byte random number. It returns data in TLV format .\n" |
| 581 | "Needs a EMV applet to be selected and GPO to be executed.", |
| 582 | |
| 583 | "Usage:\n" |
| 584 | "\temv intauth -k 01020304 -> execute Internal Authenticate with 4-byte DDOLdata and keep field ON after command\n" |
| 585 | "\temv intauth -t 01020304 -> execute Internal Authenticate with 4-byte DDOL data, show result in TLV\n" |
| 586 | "\temv intauth -pmt 9F 37 04 -> load params from file, make DDOL data from DDOL, Internal Authenticate with DDOL, show result in TLV"); |
| 587 | |
| 588 | void* argtable[] = { |
| 589 | arg_param_begin, |
| 590 | arg_lit0("kK", "keep", "keep field ON for next command"), |
| 591 | arg_lit0("pP", "params", "load parameters from `emv/defparams.json` file for DDOLdata making from DDOL and parameters"), |
| 592 | arg_lit0("mM", "make", "make DDOLdata from DDOL (tag 9F49) and parameters (by default uses default parameters)"), |
| 593 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), |
| 594 | arg_lit0("tT", "tlv", "TLV decode results of selected applets"), |
| 595 | #ifdef WITH_SMARTCARD |
| 596 | arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), |
| 597 | #endif |
| 598 | arg_strx1(NULL, NULL, "<HEX DDOLdata/DDOL>", NULL), |
| 599 | arg_param_end |
| 600 | }; |
| 601 | CLIExecWithReturn(cmd, argtable, false); |
| 602 | |
| 603 | bool leaveSignalON = arg_get_lit(1); |
| 604 | bool paramsLoadFromFile = arg_get_lit(2); |
| 605 | bool dataMakeFromDDOL = arg_get_lit(3); |
| 606 | bool APDULogging = arg_get_lit(4); |
| 607 | bool decodeTLV = arg_get_lit(5); |
| 608 | EMVCommandChannel channel = ECC_CONTACTLESS; |
| 609 | #ifdef WITH_SMARTCARD |
| 610 | if (arg_get_lit(6)) |
| 611 | channel = ECC_CONTACT; |
| 612 | CLIGetHexWithReturn(7, data, &datalen); |
| 613 | #else |
| 614 | CLIGetHexWithReturn(6, data, &datalen); |
| 615 | #endif |
| 616 | PrintChannel(channel); |
| 617 | CLIParserFree(); |
| 618 | |
| 619 | SetAPDULogging(APDULogging); |
| 620 | |
| 621 | // Init TLV tree |
| 622 | const char *alr = "Root terminal TLV tree"; |
| 623 | struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); |
| 624 | |
| 625 | // calc DDOL |
| 626 | struct tlv *ddol_data_tlv = NULL; |
| 627 | struct tlv data_tlv = { |
| 628 | .tag = 0x01, |
| 629 | .len = datalen, |
| 630 | .value = (uint8_t *)data, |
| 631 | }; |
| 632 | |
| 633 | if (dataMakeFromDDOL) { |
| 634 | ParamLoadDefaults(tlvRoot); |
| 635 | |
| 636 | if (paramsLoadFromFile) { |
| 637 | PrintAndLogEx(INFO, "Params loading from file..."); |
| 638 | ParamLoadFromJson(tlvRoot); |
| 639 | }; |
| 640 | |
| 641 | ddol_data_tlv = dol_process((const struct tlv *)tlvdb_external(0x9f49, datalen, data), tlvRoot, 0x01); // 0x01 - dummy tag |
| 642 | if (!ddol_data_tlv){ |
| 643 | PrintAndLogEx(ERR, "Can't create DDOL TLV."); |
| 644 | tlvdb_free(tlvRoot); |
| 645 | return 4; |
| 646 | } |
| 647 | } else { |
| 648 | if (paramsLoadFromFile) { |
| 649 | PrintAndLogEx(WARNING, "Don't need to load parameters. Sending plain DDOL data..."); |
| 650 | } |
| 651 | ddol_data_tlv = &data_tlv; |
| 652 | } |
| 653 | |
| 654 | PrintAndLogEx(INFO, "DDOL data[%d]: %s", ddol_data_tlv->len, sprint_hex(ddol_data_tlv->value, ddol_data_tlv->len)); |
| 655 | |
| 656 | // exec |
| 657 | uint8_t buf[APDU_RESPONSE_LEN] = {0}; |
| 658 | size_t len = 0; |
| 659 | uint16_t sw = 0; |
| 660 | int res = EMVInternalAuthenticate(channel, leaveSignalON, data, datalen, buf, sizeof(buf), &len, &sw, NULL); |
| 661 | |
| 662 | if (ddol_data_tlv != &data_tlv) |
| 663 | free(ddol_data_tlv); |
| 664 | tlvdb_free(tlvRoot); |
| 665 | |
| 666 | if (sw) |
| 667 | PrintAndLogEx(INFO, "APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff)); |
| 668 | |
| 669 | if (res) |
| 670 | return res; |
| 671 | |
| 672 | if (decodeTLV) |
| 673 | TLVPrintFromBuffer(buf, len); |
| 674 | |
| 675 | return 0; |
| 676 | } |
| 677 | |
| 678 | #define dreturn(n) {free(pdol_data_tlv); tlvdb_free(tlvSelect); tlvdb_free(tlvRoot); DropFieldEx( channel ); return n;} |
| 679 | |
| 680 | void InitTransactionParameters(struct tlvdb *tlvRoot, bool paramLoadJSON, enum TransactionType TrType, bool GenACGPO) { |
| 681 | |
| 682 | ParamLoadDefaults(tlvRoot); |
| 683 | |
| 684 | if (paramLoadJSON) { |
| 685 | PrintAndLog("* * Transaction parameters loading from JSON..."); |
| 686 | ParamLoadFromJson(tlvRoot); |
| 687 | } |
| 688 | |
| 689 | //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4 |
| 690 | char *qVSDC = "\x26\x00\x00\x00"; |
| 691 | if (GenACGPO) { |
| 692 | qVSDC = "\x26\x80\x00\x00"; |
| 693 | } |
| 694 | switch(TrType) { |
| 695 | case TT_MSD: |
| 696 | TLV_ADD(0x9F66, "\x86\x00\x00\x00"); // MSD |
| 697 | break; |
| 698 | // not standard for contactless. just for test. |
| 699 | case TT_VSDC: |
| 700 | TLV_ADD(0x9F66, "\x46\x00\x00\x00"); // VSDC |
| 701 | break; |
| 702 | case TT_QVSDCMCHIP: |
| 703 | TLV_ADD(0x9F66, qVSDC); // qVSDC |
| 704 | break; |
| 705 | case TT_CDA: |
| 706 | TLV_ADD(0x9F66, qVSDC); // qVSDC (VISA CDA not enabled) |
| 707 | break; |
| 708 | default: |
| 709 | break; |
| 710 | } |
| 711 | } |
| 712 | |
| 713 | void ProcessGPOResponseFormat1(struct tlvdb *tlvRoot, uint8_t *buf, size_t len, bool decodeTLV) { |
| 714 | if (buf[0] == 0x80) { |
| 715 | if (decodeTLV){ |
| 716 | PrintAndLog("GPO response format1:"); |
| 717 | TLVPrintFromBuffer(buf, len); |
| 718 | } |
| 719 | |
| 720 | if (len < 4 || (len - 4) % 4) { |
| 721 | PrintAndLogEx(ERR, "GPO response format1 parsing error. length=%d", len); |
| 722 | } else { |
| 723 | // AIP |
| 724 | struct tlvdb * f1AIP = tlvdb_fixed(0x82, 2, buf + 2); |
| 725 | tlvdb_add(tlvRoot, f1AIP); |
| 726 | if (decodeTLV){ |
| 727 | PrintAndLogEx(INFO, "\n* * Decode response format 1 (0x80) AIP and AFL:"); |
| 728 | TLVPrintFromTLV(f1AIP); |
| 729 | } |
| 730 | |
| 731 | // AFL |
| 732 | struct tlvdb * f1AFL = tlvdb_fixed(0x94, len - 4, buf + 2 + 2); |
| 733 | tlvdb_add(tlvRoot, f1AFL); |
| 734 | if (decodeTLV) |
| 735 | TLVPrintFromTLV(f1AFL); |
| 736 | } |
| 737 | } else { |
| 738 | if (decodeTLV) |
| 739 | TLVPrintFromBuffer(buf, len); |
| 740 | } |
| 741 | } |
| 742 | |
| 743 | void ProcessACResponseFormat1(struct tlvdb *tlvRoot, uint8_t *buf, size_t len, bool decodeTLV) { |
| 744 | if (buf[0] == 0x80) { |
| 745 | if (decodeTLV){ |
| 746 | PrintAndLog("GPO response format1:"); |
| 747 | TLVPrintFromBuffer(buf, len); |
| 748 | } |
| 749 | |
| 750 | uint8_t elmlen = len - 2; // wo 0x80XX |
| 751 | |
| 752 | if (len < 4 + 2 || (elmlen - 2) % 4 || elmlen != buf[1]) { |
| 753 | PrintAndLogEx(ERR, "GPO response format1 parsing error. length=%d", len); |
| 754 | } else { |
| 755 | struct tlvdb *tlvElm = NULL; |
| 756 | if (decodeTLV) |
| 757 | PrintAndLog("\n------------ Format1 decoded ------------"); |
| 758 | |
| 759 | // CID (Cryptogram Information Data) |
| 760 | tlvdb_change_or_add_node_ex(tlvRoot, 0x9f27, 1, &buf[2], &tlvElm); |
| 761 | if (decodeTLV) |
| 762 | TLVPrintFromTLV(tlvElm); |
| 763 | |
| 764 | // ATC (Application Transaction Counter) |
| 765 | tlvdb_change_or_add_node_ex(tlvRoot, 0x9f36, 2, &buf[3], &tlvElm); |
| 766 | if (decodeTLV) |
| 767 | TLVPrintFromTLV(tlvElm); |
| 768 | |
| 769 | // AC (Application Cryptogram) |
| 770 | tlvdb_change_or_add_node_ex(tlvRoot, 0x9f26, MIN(8, elmlen - 3), &buf[5], &tlvElm); |
| 771 | if (decodeTLV) |
| 772 | TLVPrintFromTLV(tlvElm); |
| 773 | |
| 774 | // IAD (Issuer Application Data) - optional |
| 775 | if (len > 11 + 2) { |
| 776 | tlvdb_change_or_add_node_ex(tlvRoot, 0x9f10, elmlen - 11, &buf[13], &tlvElm); |
| 777 | if (decodeTLV) |
| 778 | TLVPrintFromTLV(tlvElm); |
| 779 | } |
| 780 | } |
| 781 | } else { |
| 782 | if (decodeTLV) |
| 783 | TLVPrintFromBuffer(buf, len); |
| 784 | } |
| 785 | } |
| 786 | |
| 787 | int CmdEMVExec(const char *cmd) { |
| 788 | uint8_t buf[APDU_RESPONSE_LEN] = {0}; |
| 789 | size_t len = 0; |
| 790 | uint16_t sw = 0; |
| 791 | uint8_t AID[APDU_DATA_LEN] = {0}; |
| 792 | size_t AIDlen = 0; |
| 793 | uint8_t ODAiList[4096]; |
| 794 | size_t ODAiListLen = 0; |
| 795 | |
| 796 | int res; |
| 797 | |
| 798 | struct tlvdb *tlvSelect = NULL; |
| 799 | struct tlvdb *tlvRoot = NULL; |
| 800 | struct tlv *pdol_data_tlv = NULL; |
| 801 | |
| 802 | CLIParserInit("emv exec", |
| 803 | "Executes EMV contactless transaction", |
| 804 | "Usage:\n" |
| 805 | "\temv exec -sat -> select card, execute MSD transaction, show APDU and TLV\n" |
| 806 | "\temv exec -satc -> select card, execute CDA transaction, show APDU and TLV\n"); |
| 807 | |
| 808 | void* argtable[] = { |
| 809 | arg_param_begin, |
| 810 | arg_lit0("sS", "select", "activate field and select card."), |
| 811 | arg_lit0("aA", "apdu", "show APDU reqests and responses."), |
| 812 | arg_lit0("tT", "tlv", "TLV decode results."), |
| 813 | arg_lit0("jJ", "jload", "Load transaction parameters from `emv/defparams.json` file."), |
| 814 | arg_lit0("fF", "forceaid", "Force search AID. Search AID instead of execute PPSE."), |
| 815 | arg_rem("By default:", "Transaction type - MSD"), |
| 816 | arg_lit0("vV", "qvsdc", "Transaction type - qVSDC or M/Chip."), |
| 817 | arg_lit0("cC", "qvsdccda", "Transaction type - qVSDC or M/Chip plus CDA (SDAD generation)."), |
| 818 | arg_lit0("xX", "vsdc", "Transaction type - VSDC. For test only. Not a standart behavior."), |
| 819 | arg_lit0("gG", "acgpo", "VISA. generate AC from GPO."), |
| 820 | arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), |
| 821 | arg_param_end |
| 822 | }; |
| 823 | CLIExecWithReturn(cmd, argtable, true); |
| 824 | |
| 825 | bool activateField = arg_get_lit(1); |
| 826 | bool showAPDU = arg_get_lit(2); |
| 827 | bool decodeTLV = arg_get_lit(3); |
| 828 | bool paramLoadJSON = arg_get_lit(4); |
| 829 | bool forceSearch = arg_get_lit(5); |
| 830 | |
| 831 | enum TransactionType TrType = TT_MSD; |
| 832 | if (arg_get_lit(7)) |
| 833 | TrType = TT_QVSDCMCHIP; |
| 834 | if (arg_get_lit(8)) |
| 835 | TrType = TT_CDA; |
| 836 | if (arg_get_lit(9)) |
| 837 | TrType = TT_VSDC; |
| 838 | |
| 839 | bool GenACGPO = arg_get_lit(10); |
| 840 | EMVCommandChannel channel = ECC_CONTACTLESS; |
| 841 | #ifdef WITH_SMARTCARD |
| 842 | if (arg_get_lit(11)) |
| 843 | channel = ECC_CONTACT; |
| 844 | #endif |
| 845 | PrintChannel(channel); |
| 846 | uint8_t psenum = (channel == ECC_CONTACT) ? 1 : 2; |
| 847 | char *PSE_or_PPSE = psenum == 1 ? "PSE" : "PPSE"; |
| 848 | |
| 849 | CLIParserFree(); |
| 850 | |
| 851 | SetAPDULogging(showAPDU); |
| 852 | |
| 853 | // init applets list tree |
| 854 | const char *al = "Applets list"; |
| 855 | tlvSelect = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); |
| 856 | |
| 857 | // Application Selection |
| 858 | // https://www.openscdp.org/scripts/tutorial/emv/applicationselection.html |
| 859 | if (!forceSearch) { |
| 860 | // PPSE / PSE |
| 861 | PrintAndLogEx(NORMAL, "\n* %s.", PSE_or_PPSE); |
| 862 | SetAPDULogging(showAPDU); |
| 863 | res = EMVSearchPSE(channel, activateField, true, psenum, decodeTLV, tlvSelect); |
| 864 | |
| 865 | // check PPSE / PSE and select application id |
| 866 | if (!res) { |
| 867 | TLVPrintAIDlistFromSelectTLV(tlvSelect); |
| 868 | EMVSelectApplication(tlvSelect, AID, &AIDlen); |
| 869 | } |
| 870 | } |
| 871 | |
| 872 | // Search |
| 873 | if (!AIDlen) { |
| 874 | PrintAndLogEx(NORMAL, "\n* Search AID in list."); |
| 875 | SetAPDULogging(false); |
| 876 | if (EMVSearch(channel, activateField, true, decodeTLV, tlvSelect)) { |
| 877 | dreturn(2); |
| 878 | } |
| 879 | |
| 880 | // check search and select application id |
| 881 | TLVPrintAIDlistFromSelectTLV(tlvSelect); |
| 882 | EMVSelectApplication(tlvSelect, AID, &AIDlen); |
| 883 | } |
| 884 | |
| 885 | // Init TLV tree |
| 886 | const char *alr = "Root terminal TLV tree"; |
| 887 | tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); |
| 888 | |
| 889 | // check if we found EMV application on card |
| 890 | if (!AIDlen) { |
| 891 | PrintAndLogEx(WARNING, "Can't select AID. EMV AID not found"); |
| 892 | dreturn(2); |
| 893 | } |
| 894 | |
| 895 | // Select |
| 896 | PrintAndLogEx(NORMAL, "\n* Selecting AID:%s", sprint_hex_inrow(AID, AIDlen)); |
| 897 | SetAPDULogging(showAPDU); |
| 898 | res = EMVSelect(channel, false, true, AID, AIDlen, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 899 | |
| 900 | if (res) { |
| 901 | PrintAndLogEx(WARNING, "Can't select AID (%d). Exit...", res); |
| 902 | dreturn(3); |
| 903 | } |
| 904 | |
| 905 | if (decodeTLV) |
| 906 | TLVPrintFromBuffer(buf, len); |
| 907 | PrintAndLogEx(INFO, "* Selected."); |
| 908 | |
| 909 | PrintAndLogEx(INFO, "\n* Init transaction parameters."); |
| 910 | InitTransactionParameters(tlvRoot, paramLoadJSON, TrType, GenACGPO); |
| 911 | TLVPrintFromTLV(tlvRoot); // TODO delete!!! |
| 912 | |
| 913 | PrintAndLogEx(NORMAL, "\n* Calc PDOL."); |
| 914 | pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83); |
| 915 | if (!pdol_data_tlv){ |
| 916 | PrintAndLogEx(WARNING, "Error: can't create PDOL TLV."); |
| 917 | dreturn(4); |
| 918 | } |
| 919 | |
| 920 | size_t pdol_data_tlv_data_len; |
| 921 | unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); |
| 922 | if (!pdol_data_tlv_data) { |
| 923 | PrintAndLogEx(WARNING, "Error: can't create PDOL data."); |
| 924 | dreturn(4); |
| 925 | } |
| 926 | PrintAndLogEx(NORMAL, "PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); |
| 927 | |
| 928 | PrintAndLogEx(NORMAL, "\n* GPO."); |
| 929 | res = EMVGPO(channel, true, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 930 | |
| 931 | free(pdol_data_tlv_data); |
| 932 | //free(pdol_data_tlv); --- free on exit. |
| 933 | |
| 934 | if (res) { |
| 935 | PrintAndLogEx(NORMAL, "GPO error(%d): %4x. Exit...", res, sw); |
| 936 | dreturn(5); |
| 937 | } |
| 938 | |
| 939 | // process response template format 1 [id:80 2b AIP + x4b AFL] and format 2 [id:77 TLV] |
| 940 | ProcessGPOResponseFormat1(tlvRoot, buf, len, decodeTLV); |
| 941 | |
| 942 | // extract PAN from track2 |
| 943 | { |
| 944 | const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL); |
| 945 | if (!tlvdb_get(tlvRoot, 0x5a, NULL) && track2 && track2->len >= 8) { |
| 946 | struct tlvdb *pan = GetPANFromTrack2(track2); |
| 947 | if (pan) { |
| 948 | tlvdb_add(tlvRoot, pan); |
| 949 | |
| 950 | const struct tlv *pantlv = tlvdb_get(tlvRoot, 0x5a, NULL); |
| 951 | PrintAndLogEx(NORMAL, "\n* * Extracted PAN from track2: %s", sprint_hex(pantlv->value, pantlv->len)); |
| 952 | } else { |
| 953 | PrintAndLogEx(NORMAL, "\n* * WARNING: Can't extract PAN from track2."); |
| 954 | } |
| 955 | } |
| 956 | } |
| 957 | |
| 958 | PrintAndLogEx(NORMAL, "\n* Read records from AFL."); |
| 959 | const struct tlv *AFL = tlvdb_get(tlvRoot, 0x94, NULL); |
| 960 | if (!AFL || !AFL->len) { |
| 961 | PrintAndLogEx(WARNING, "AFL not found."); |
| 962 | } |
| 963 | |
| 964 | while(AFL && AFL->len) { |
| 965 | if (AFL->len % 4) { |
| 966 | PrintAndLogEx(WARNING, "Error: Wrong AFL length: %d", AFL->len); |
| 967 | break; |
| 968 | } |
| 969 | |
| 970 | for (int i = 0; i < AFL->len / 4; i++) { |
| 971 | uint8_t SFI = AFL->value[i * 4 + 0] >> 3; |
| 972 | uint8_t SFIstart = AFL->value[i * 4 + 1]; |
| 973 | uint8_t SFIend = AFL->value[i * 4 + 2]; |
| 974 | uint8_t SFIoffline = AFL->value[i * 4 + 3]; |
| 975 | |
| 976 | PrintAndLogEx(NORMAL, "* * SFI[%02x] start:%02x end:%02x offline count:%02x", SFI, SFIstart, SFIend, SFIoffline); |
| 977 | if (SFI == 0 || SFI == 31 || SFIstart == 0 || SFIstart > SFIend) { |
| 978 | PrintAndLogEx(NORMAL, "SFI ERROR! Skipped..."); |
| 979 | continue; |
| 980 | } |
| 981 | |
| 982 | for(int n = SFIstart; n <= SFIend; n++) { |
| 983 | PrintAndLogEx(NORMAL, "* * * SFI[%02x] %d", SFI, n); |
| 984 | |
| 985 | res = EMVReadRecord(channel, true, SFI, n, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 986 | if (res) { |
| 987 | PrintAndLogEx(WARNING, "Error SFI[%02x]. APDU error %4x", SFI, sw); |
| 988 | continue; |
| 989 | } |
| 990 | |
| 991 | if (decodeTLV) { |
| 992 | TLVPrintFromBuffer(buf, len); |
| 993 | PrintAndLogEx(NORMAL, ""); |
| 994 | } |
| 995 | |
| 996 | // Build Input list for Offline Data Authentication |
| 997 | // EMV 4.3 book3 10.3, page 96 |
| 998 | if (SFIoffline > 0) { |
| 999 | if (SFI < 11) { |
| 1000 | const unsigned char *abuf = buf; |
| 1001 | size_t elmlen = len; |
| 1002 | struct tlv e; |
| 1003 | if (tlv_parse_tl(&abuf, &elmlen, &e)) { |
| 1004 | memcpy(&ODAiList[ODAiListLen], &buf[len - elmlen], elmlen); |
| 1005 | ODAiListLen += elmlen; |
| 1006 | } else { |
| 1007 | PrintAndLogEx(WARNING, "Error SFI[%02x]. Creating input list for Offline Data Authentication error.", SFI); |
| 1008 | } |
| 1009 | } else { |
| 1010 | memcpy(&ODAiList[ODAiListLen], buf, len); |
| 1011 | ODAiListLen += len; |
| 1012 | } |
| 1013 | |
| 1014 | SFIoffline--; |
| 1015 | } |
| 1016 | } |
| 1017 | } |
| 1018 | |
| 1019 | break; |
| 1020 | } |
| 1021 | |
| 1022 | // copy Input list for Offline Data Authentication |
| 1023 | if (ODAiListLen) { |
| 1024 | struct tlvdb *oda = tlvdb_fixed(0x21, ODAiListLen, ODAiList); // not a standard tag |
| 1025 | tlvdb_add(tlvRoot, oda); |
| 1026 | PrintAndLogEx(NORMAL, "* Input list for Offline Data Authentication added to TLV. len=%d \n", ODAiListLen); |
| 1027 | } |
| 1028 | |
| 1029 | // get AIP |
| 1030 | uint16_t AIP = 0; |
| 1031 | const struct tlv *AIPtlv = tlvdb_get(tlvRoot, 0x82, NULL); |
| 1032 | if (AIPtlv) { |
| 1033 | AIP = AIPtlv->value[0] + AIPtlv->value[1] * 0x100; |
| 1034 | PrintAndLogEx(NORMAL, "* * AIP=%04x", AIP); |
| 1035 | } else { |
| 1036 | PrintAndLogEx(ERR, "Can't found AIP."); |
| 1037 | } |
| 1038 | |
| 1039 | // SDA |
| 1040 | if (AIP & 0x0040) { |
| 1041 | PrintAndLogEx(NORMAL, "\n* SDA"); |
| 1042 | trSDA(tlvRoot); |
| 1043 | } |
| 1044 | |
| 1045 | // DDA |
| 1046 | if (AIP & 0x0020) { |
| 1047 | PrintAndLogEx(NORMAL, "\n* DDA"); |
| 1048 | trDDA(channel, decodeTLV, tlvRoot); |
| 1049 | } |
| 1050 | |
| 1051 | // transaction check |
| 1052 | |
| 1053 | // qVSDC |
| 1054 | if (TrType == TT_QVSDCMCHIP|| TrType == TT_CDA){ |
| 1055 | // 9F26: Application Cryptogram |
| 1056 | const struct tlv *AC = tlvdb_get(tlvRoot, 0x9F26, NULL); |
| 1057 | if (AC) { |
| 1058 | PrintAndLogEx(NORMAL, "\n--> qVSDC transaction."); |
| 1059 | PrintAndLogEx(NORMAL, "* AC path"); |
| 1060 | |
| 1061 | // 9F36: Application Transaction Counter (ATC) |
| 1062 | const struct tlv *ATC = tlvdb_get(tlvRoot, 0x9F36, NULL); |
| 1063 | if (ATC) { |
| 1064 | |
| 1065 | // 9F10: Issuer Application Data - optional |
| 1066 | const struct tlv *IAD = tlvdb_get(tlvRoot, 0x9F10, NULL); |
| 1067 | |
| 1068 | // print AC data |
| 1069 | PrintAndLogEx(NORMAL, "ATC: %s", sprint_hex(ATC->value, ATC->len)); |
| 1070 | PrintAndLogEx(NORMAL, "AC: %s", sprint_hex(AC->value, AC->len)); |
| 1071 | if (IAD){ |
| 1072 | PrintAndLogEx(NORMAL, "IAD: %s", sprint_hex(IAD->value, IAD->len)); |
| 1073 | |
| 1074 | if (IAD->len >= IAD->value[0] + 1) { |
| 1075 | PrintAndLogEx(NORMAL, "\tKey index: 0x%02x", IAD->value[1]); |
| 1076 | PrintAndLogEx(NORMAL, "\tCrypto ver: 0x%02x(%03d)", IAD->value[2], IAD->value[2]); |
| 1077 | PrintAndLogEx(NORMAL, "\tCVR:", sprint_hex(&IAD->value[3], IAD->value[0] - 2)); |
| 1078 | struct tlvdb * cvr = tlvdb_fixed(0x20, IAD->value[0] - 2, &IAD->value[3]); |
| 1079 | TLVPrintFromTLVLev(cvr, 1); |
| 1080 | } |
| 1081 | } else { |
| 1082 | PrintAndLogEx(WARNING, "IAD not found."); |
| 1083 | } |
| 1084 | |
| 1085 | } else { |
| 1086 | PrintAndLogEx(ERR, "AC: Application Transaction Counter (ATC) not found."); |
| 1087 | } |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | // Mastercard M/CHIP |
| 1092 | if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD && (TrType == TT_QVSDCMCHIP || TrType == TT_CDA)){ |
| 1093 | const struct tlv *CDOL1 = tlvdb_get(tlvRoot, 0x8c, NULL); |
| 1094 | if (CDOL1 && GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { // and m/chip transaction flag |
| 1095 | PrintAndLogEx(NORMAL, "\n--> Mastercard M/Chip transaction."); |
| 1096 | |
| 1097 | PrintAndLogEx(NORMAL, "* * Generate challenge"); |
| 1098 | res = EMVGenerateChallenge(channel, true, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 1099 | if (res) { |
| 1100 | PrintAndLogEx(WARNING, "GetChallenge. APDU error %4x", sw); |
| 1101 | dreturn(6); |
| 1102 | } |
| 1103 | if (len < 4) { |
| 1104 | PrintAndLogEx(WARNING, "GetChallenge. Wrong challenge length %d", len); |
| 1105 | dreturn(6); |
| 1106 | } |
| 1107 | |
| 1108 | // ICC Dynamic Number |
| 1109 | struct tlvdb * ICCDynN = tlvdb_fixed(0x9f4c, len, buf); |
| 1110 | tlvdb_add(tlvRoot, ICCDynN); |
| 1111 | if (decodeTLV){ |
| 1112 | PrintAndLogEx(NORMAL, "\n* * ICC Dynamic Number:"); |
| 1113 | TLVPrintFromTLV(ICCDynN); |
| 1114 | } |
| 1115 | |
| 1116 | PrintAndLogEx(NORMAL, "* * Calc CDOL1"); |
| 1117 | struct tlv *cdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x8c, NULL), tlvRoot, 0x01); // 0x01 - dummy tag |
| 1118 | if (!cdol_data_tlv){ |
| 1119 | PrintAndLogEx(WARNING, "Error: can't create CDOL1 TLV."); |
| 1120 | dreturn(6); |
| 1121 | } |
| 1122 | PrintAndLogEx(NORMAL, "CDOL1 data[%d]: %s", cdol_data_tlv->len, sprint_hex(cdol_data_tlv->value, cdol_data_tlv->len)); |
| 1123 | |
| 1124 | PrintAndLogEx(NORMAL, "* * AC1"); |
| 1125 | // EMVAC_TC + EMVAC_CDAREQ --- to get SDAD |
| 1126 | res = EMVAC(channel, 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); |
| 1127 | |
| 1128 | if (res) { |
| 1129 | PrintAndLogEx(NORMAL, "AC1 error(%d): %4x. Exit...", res, sw); |
| 1130 | dreturn(7); |
| 1131 | } |
| 1132 | |
| 1133 | if (decodeTLV) |
| 1134 | TLVPrintFromBuffer(buf, len); |
| 1135 | |
| 1136 | // CDA |
| 1137 | PrintAndLogEx(NORMAL, "\n* CDA:"); |
| 1138 | struct tlvdb *ac_tlv = tlvdb_parse_multi(buf, len); |
| 1139 | res = trCDA(tlvRoot, ac_tlv, pdol_data_tlv, cdol_data_tlv); |
| 1140 | if (res) { |
| 1141 | PrintAndLogEx(NORMAL, "CDA error (%d)", res); |
| 1142 | } |
| 1143 | free(ac_tlv); |
| 1144 | free(cdol_data_tlv); |
| 1145 | |
| 1146 | PrintAndLogEx(NORMAL, "\n* M/Chip transaction result:"); |
| 1147 | // 9F27: Cryptogram Information Data (CID) |
| 1148 | const struct tlv *CID = tlvdb_get(tlvRoot, 0x9F27, NULL); |
| 1149 | if (CID) { |
| 1150 | emv_tag_dump(CID, stdout, 0); |
| 1151 | PrintAndLogEx(NORMAL, "------------------------------"); |
| 1152 | if (CID->len > 0) { |
| 1153 | switch(CID->value[0] & EMVAC_AC_MASK){ |
| 1154 | case EMVAC_AAC: |
| 1155 | PrintAndLogEx(NORMAL, "Transaction DECLINED."); |
| 1156 | break; |
| 1157 | case EMVAC_TC: |
| 1158 | PrintAndLogEx(NORMAL, "Transaction approved OFFLINE."); |
| 1159 | break; |
| 1160 | case EMVAC_ARQC: |
| 1161 | PrintAndLogEx(NORMAL, "Transaction approved ONLINE."); |
| 1162 | break; |
| 1163 | default: |
| 1164 | PrintAndLogEx(WARNING, "Error: CID transaction code error %2x", CID->value[0] & EMVAC_AC_MASK); |
| 1165 | break; |
| 1166 | } |
| 1167 | } else { |
| 1168 | PrintAndLogEx(WARNING, "Wrong CID length %d", CID->len); |
| 1169 | } |
| 1170 | } else { |
| 1171 | PrintAndLogEx(WARNING, "CID(9F27) not found."); |
| 1172 | } |
| 1173 | |
| 1174 | } |
| 1175 | } |
| 1176 | |
| 1177 | // MSD |
| 1178 | if (AIP & 0x8000 && TrType == TT_MSD) { |
| 1179 | PrintAndLogEx(NORMAL, "\n--> MSD transaction."); |
| 1180 | |
| 1181 | PrintAndLogEx(NORMAL, "* MSD dCVV path. Check dCVV"); |
| 1182 | |
| 1183 | const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL); |
| 1184 | if (track2) { |
| 1185 | PrintAndLogEx(NORMAL, "Track2: %s", sprint_hex(track2->value, track2->len)); |
| 1186 | |
| 1187 | struct tlvdb *dCVV = GetdCVVRawFromTrack2(track2); |
| 1188 | PrintAndLogEx(NORMAL, "dCVV raw data:"); |
| 1189 | TLVPrintFromTLV(dCVV); |
| 1190 | |
| 1191 | if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { |
| 1192 | PrintAndLogEx(NORMAL, "\n* Mastercard calculate UDOL"); |
| 1193 | |
| 1194 | // UDOL (9F69) |
| 1195 | const struct tlv *UDOL = tlvdb_get(tlvRoot, 0x9F69, NULL); |
| 1196 | // UDOL(9F69) default: 9F6A (Unpredictable number) 4 bytes |
| 1197 | const struct tlv defUDOL = { |
| 1198 | .tag = 0x01, |
| 1199 | .len = 3, |
| 1200 | .value = (uint8_t *)"\x9f\x6a\x04", |
| 1201 | }; |
| 1202 | if (!UDOL) |
| 1203 | PrintAndLogEx(NORMAL, "Use default UDOL."); |
| 1204 | |
| 1205 | struct tlv *udol_data_tlv = dol_process(UDOL ? UDOL : &defUDOL, tlvRoot, 0x01); // 0x01 - dummy tag |
| 1206 | if (!udol_data_tlv){ |
| 1207 | PrintAndLogEx(WARNING, "can't create UDOL TLV."); |
| 1208 | dreturn(8); |
| 1209 | } |
| 1210 | |
| 1211 | PrintAndLogEx(NORMAL, "UDOL data[%d]: %s", udol_data_tlv->len, sprint_hex(udol_data_tlv->value, udol_data_tlv->len)); |
| 1212 | |
| 1213 | PrintAndLogEx(NORMAL, "\n* Mastercard compute cryptographic checksum(UDOL)"); |
| 1214 | |
| 1215 | res = MSCComputeCryptoChecksum(channel, true, (uint8_t *)udol_data_tlv->value, udol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 1216 | if (res) { |
| 1217 | PrintAndLogEx(WARNING, "Compute Crypto Checksum. APDU error %4x", sw); |
| 1218 | free(udol_data_tlv); |
| 1219 | dreturn(9); |
| 1220 | } |
| 1221 | |
| 1222 | // Mastercard compute cryptographic checksum result |
| 1223 | TLVPrintFromBuffer(buf, len); |
| 1224 | PrintAndLogEx(NORMAL, ""); |
| 1225 | |
| 1226 | free(udol_data_tlv); |
| 1227 | |
| 1228 | } |
| 1229 | } else { |
| 1230 | PrintAndLogEx(WARNING, "MSD: Track2 data not found."); |
| 1231 | } |
| 1232 | } |
| 1233 | |
| 1234 | // VSDC |
| 1235 | if (GetCardPSVendor(AID, AIDlen) == CV_VISA && (TrType == TT_VSDC || TrType == TT_CDA)){ |
| 1236 | PrintAndLogEx(NORMAL, "\n--> VSDC transaction."); |
| 1237 | |
| 1238 | PrintAndLogEx(NORMAL, "* * Calc CDOL1"); |
| 1239 | struct tlv *cdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x8c, NULL), tlvRoot, 0x01); // 0x01 - dummy tag |
| 1240 | if (!cdol_data_tlv) { |
| 1241 | PrintAndLogEx(WARNING, "Error: can't create CDOL1 TLV."); |
| 1242 | dreturn(6); |
| 1243 | } |
| 1244 | |
| 1245 | PrintAndLogEx(NORMAL, "CDOL1 data[%d]: %s", cdol_data_tlv->len, sprint_hex(cdol_data_tlv->value, cdol_data_tlv->len)); |
| 1246 | |
| 1247 | PrintAndLogEx(NORMAL, "* * AC1"); |
| 1248 | // EMVAC_TC + EMVAC_CDAREQ --- to get SDAD |
| 1249 | res = EMVAC(channel, 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); |
| 1250 | |
| 1251 | if (res) { |
| 1252 | PrintAndLogEx(NORMAL, "AC1 error(%d): %4x. Exit...", res, sw); |
| 1253 | dreturn(7); |
| 1254 | } |
| 1255 | |
| 1256 | // process Format1 (0x80) and print Format2 (0x77) |
| 1257 | ProcessACResponseFormat1(tlvRoot, buf, len, decodeTLV); |
| 1258 | |
| 1259 | uint8_t CID = 0; |
| 1260 | tlvdb_get_uint8(tlvRoot, 0x9f27, &CID); |
| 1261 | |
| 1262 | // AC1 print result |
| 1263 | PrintAndLog(""); |
| 1264 | if ((CID & EMVAC_AC_MASK) == EMVAC_AAC) PrintAndLogEx(INFO, "AC1 result: AAC (Transaction declined)"); |
| 1265 | if ((CID & EMVAC_AC_MASK) == EMVAC_TC) PrintAndLogEx(INFO, "AC1 result: TC (Transaction approved)"); |
| 1266 | if ((CID & EMVAC_AC_MASK) == EMVAC_ARQC) PrintAndLogEx(INFO, "AC1 result: ARQC (Online authorisation requested)"); |
| 1267 | if ((CID & EMVAC_AC_MASK) == EMVAC_AC_MASK) PrintAndLogEx(INFO, "AC1 result: RFU"); |
| 1268 | |
| 1269 | // decode Issuer Application Data (IAD) |
| 1270 | uint8_t CryptoVersion = 0; |
| 1271 | const struct tlv *IAD = tlvdb_get(tlvRoot, 0x9f10, NULL); |
| 1272 | if (IAD && (IAD->len > 1)) { |
| 1273 | PrintAndLogEx(NORMAL, "\n* * Issuer Application Data (IAD):"); |
| 1274 | uint8_t VDDlen = IAD->value[0]; // Visa discretionary data length |
| 1275 | uint8_t IDDlen = 0; // Issuer discretionary data length |
| 1276 | PrintAndLogEx(NORMAL, "IAD length: %d", IAD->len); |
| 1277 | PrintAndLogEx(NORMAL, "VDDlen: %d", VDDlen); |
| 1278 | if (VDDlen < IAD->len - 1) |
| 1279 | IDDlen = IAD->value[VDDlen + 1]; |
| 1280 | PrintAndLogEx(NORMAL, "IDDlen: %d", IDDlen); |
| 1281 | |
| 1282 | uint8_t DerivKeyIndex = IAD->value[1]; |
| 1283 | CryptoVersion = IAD->value[2]; |
| 1284 | |
| 1285 | PrintAndLogEx(NORMAL, "CryptoVersion: %d", CryptoVersion); |
| 1286 | PrintAndLogEx(NORMAL, "DerivKeyIndex: %d", DerivKeyIndex); |
| 1287 | |
| 1288 | // Card Verification Results (CVR) decode |
| 1289 | if ((VDDlen - 2) > 0) { |
| 1290 | uint8_t CVRlen = IAD->value[3]; |
| 1291 | if (CVRlen == (VDDlen - 2 - 1)) { |
| 1292 | PrintAndLogEx(NORMAL, "CVR length: %d", CVRlen); |
| 1293 | PrintAndLogEx(NORMAL, "CVR: %s", sprint_hex(&IAD->value[4], CVRlen)); |
| 1294 | } else { |
| 1295 | PrintAndLogEx(NORMAL, "Wrong CVR length! CVR: %s", sprint_hex(&IAD->value[3], VDDlen - 2)); |
| 1296 | } |
| 1297 | } |
| 1298 | if (IDDlen) |
| 1299 | PrintAndLogEx(NORMAL, "IDD: %s", sprint_hex(&IAD->value[VDDlen + 1], IDDlen)); |
| 1300 | } else { |
| 1301 | PrintAndLogEx(NORMAL, "Issuer Application Data (IAD) not found."); |
| 1302 | } |
| 1303 | |
| 1304 | PrintAndLogEx(NORMAL, "\n* * Processing online request"); |
| 1305 | |
| 1306 | // authorization response code from acquirer |
| 1307 | const char HostResponse[] = "00"; // 0x3030 |
| 1308 | size_t HostResponseLen = sizeof(HostResponse) - 1; |
| 1309 | PrintAndLogEx(NORMAL, "Host Response: `%s`", HostResponse); |
| 1310 | tlvdb_change_or_add_node(tlvRoot, 0x8a, HostResponseLen, (const unsigned char *)HostResponse); |
| 1311 | |
| 1312 | if (CryptoVersion == 10) { |
| 1313 | PrintAndLogEx(NORMAL, "\n* * Generate ARPC"); |
| 1314 | |
| 1315 | // Application Cryptogram (AC) |
| 1316 | const struct tlv *AC = tlvdb_get(tlvRoot, 0x9f26, NULL); |
| 1317 | if (AC && (AC->len > 0)) { |
| 1318 | PrintAndLogEx(NORMAL, "AC: %s", sprint_hex(AC->value, AC->len)); |
| 1319 | |
| 1320 | size_t rawARPClen = AC->len; |
| 1321 | uint8_t rawARPC[rawARPClen]; |
| 1322 | memcpy(rawARPC, AC->value, AC->len); |
| 1323 | for (int i = 0; (i < HostResponseLen) && (i < rawARPClen); i++) |
| 1324 | rawARPC[i] ^= HostResponse[i]; |
| 1325 | PrintAndLogEx(NORMAL, "raw ARPC: %s", sprint_hex(rawARPC, rawARPClen)); |
| 1326 | |
| 1327 | // here must be calculation of ARPC, but we dont know a bank keys. |
| 1328 | PrintAndLogEx(NORMAL, "ARPC: n/a"); |
| 1329 | |
| 1330 | } else { |
| 1331 | PrintAndLogEx(NORMAL, "Application Cryptogram (AC) not found."); |
| 1332 | } |
| 1333 | |
| 1334 | // here must be external authenticate, but we dont know ARPC |
| 1335 | |
| 1336 | } |
| 1337 | |
| 1338 | |
| 1339 | // needs to send AC2 command (res == ARQC) |
| 1340 | if ((CID & EMVAC_AC_MASK) == EMVAC_ARQC) { |
| 1341 | PrintAndLogEx(NORMAL, "\n* * Calc CDOL2"); |
| 1342 | struct tlv *cdol2_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x8d, NULL), tlvRoot, 0x01); // 0x01 - dummy tag |
| 1343 | if (!cdol2_data_tlv) { |
| 1344 | PrintAndLogEx(WARNING, "Error: can't create CDOL2 TLV."); |
| 1345 | dreturn(6); |
| 1346 | } |
| 1347 | |
| 1348 | PrintAndLogEx(NORMAL, "CDOL2 data[%d]: %s", cdol2_data_tlv->len, sprint_hex(cdol2_data_tlv->value, cdol2_data_tlv->len)); |
| 1349 | |
| 1350 | //PrintAndLogEx(NORMAL, "* * AC2"); |
| 1351 | |
| 1352 | |
| 1353 | // here must be AC2, but we dont make external authenticate ( |
| 1354 | |
| 1355 | /* // AC2 |
| 1356 | PRINT_INDENT(level); |
| 1357 | if ((CID & EMVAC_AC2_MASK) == EMVAC_AAC2) fprintf(f, "\tAC2: AAC (Transaction declined)\n"); |
| 1358 | if ((CID & EMVAC_AC2_MASK) == EMVAC_TC2) fprintf(f, "\tAC2: TC (Transaction approved)\n"); |
| 1359 | if ((CID & EMVAC_AC2_MASK) == EMVAC_ARQC2) fprintf(f, "\tAC2: not requested (ARQC)\n"); |
| 1360 | if ((CID & EMVAC_AC2_MASK) == EMVAC_AC2_MASK) fprintf(f, "\tAC2: RFU\n"); |
| 1361 | */ |
| 1362 | } |
| 1363 | |
| 1364 | } |
| 1365 | |
| 1366 | DropFieldEx( channel ); |
| 1367 | |
| 1368 | // Destroy TLV's |
| 1369 | free(pdol_data_tlv); |
| 1370 | tlvdb_free(tlvSelect); |
| 1371 | tlvdb_free(tlvRoot); |
| 1372 | |
| 1373 | PrintAndLogEx(NORMAL, "\n* Transaction completed."); |
| 1374 | return 0; |
| 1375 | } |
| 1376 | |
| 1377 | int CmdEMVScan(const char *cmd) { |
| 1378 | uint8_t AID[APDU_DATA_LEN] = {0}; |
| 1379 | size_t AIDlen = 0; |
| 1380 | uint8_t buf[APDU_RESPONSE_LEN] = {0}; |
| 1381 | size_t len = 0; |
| 1382 | uint16_t sw = 0; |
| 1383 | int res; |
| 1384 | json_t *root; |
| 1385 | json_error_t error; |
| 1386 | |
| 1387 | CLIParserInit("emv scan", |
| 1388 | "Scan EMV card and save it contents to a file.", |
| 1389 | "It executes EMV contactless transaction and saves result to a file which can be used for emulation\n" |
| 1390 | "Usage:\n\temv scan -at -> scan MSD transaction mode and show APDU and TLV\n" |
| 1391 | "\temv scan -c -> scan CDA transaction mode\n"); |
| 1392 | |
| 1393 | void* argtable[] = { |
| 1394 | arg_param_begin, |
| 1395 | arg_lit0("aA", "apdu", "show APDU reqests and responses."), |
| 1396 | arg_lit0("tT", "tlv", "TLV decode results."), |
| 1397 | arg_lit0("eE", "extract", "Extract TLV elements and fill Application Data"), |
| 1398 | arg_lit0("jJ", "jload", "Load transaction parameters from `emv/defparams.json` file."), |
| 1399 | arg_rem("By default:", "Transaction type - MSD"), |
| 1400 | arg_lit0("vV", "qvsdc", "Transaction type - qVSDC or M/Chip."), |
| 1401 | arg_lit0("cC", "qvsdccda", "Transaction type - qVSDC or M/Chip plus CDA (SDAD generation)."), |
| 1402 | arg_lit0("xX", "vsdc", "Transaction type - VSDC. For test only. Not a standart behavior."), |
| 1403 | arg_lit0("gG", "acgpo", "VISA. generate AC from GPO."), |
| 1404 | arg_lit0("mM", "merge", "Merge output file with card's data. (warning: the file may be corrupted!)"), |
| 1405 | #ifdef WITH_SMARTCARD |
| 1406 | arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), |
| 1407 | #endif |
| 1408 | arg_str1(NULL, NULL, "output.json", "JSON output file name"), |
| 1409 | arg_param_end |
| 1410 | }; |
| 1411 | CLIExecWithReturn(cmd, argtable, true); |
| 1412 | |
| 1413 | bool showAPDU = arg_get_lit(1); |
| 1414 | bool decodeTLV = arg_get_lit(2); |
| 1415 | bool extractTLVElements = arg_get_lit(3); |
| 1416 | bool paramLoadJSON = arg_get_lit(4); |
| 1417 | |
| 1418 | enum TransactionType TrType = TT_MSD; |
| 1419 | if (arg_get_lit(6)) |
| 1420 | TrType = TT_QVSDCMCHIP; |
| 1421 | if (arg_get_lit(7)) |
| 1422 | TrType = TT_CDA; |
| 1423 | if (arg_get_lit(8)) |
| 1424 | TrType = TT_VSDC; |
| 1425 | |
| 1426 | bool GenACGPO = arg_get_lit(9); |
| 1427 | bool MergeJSON = arg_get_lit(10); |
| 1428 | EMVCommandChannel channel = ECC_CONTACTLESS; |
| 1429 | uint8_t relfname[250] = {0}; |
| 1430 | char *crelfname = (char *)relfname; |
| 1431 | int relfnamelen = 0; |
| 1432 | #ifdef WITH_SMARTCARD |
| 1433 | if (arg_get_lit(11)) { |
| 1434 | channel = ECC_CONTACT; |
| 1435 | } |
| 1436 | CLIGetStrWithReturn(12, relfname, &relfnamelen); |
| 1437 | #else |
| 1438 | CLIGetStrWithReturn(11, relfname, &relfnamelen); |
| 1439 | #endif |
| 1440 | PrintChannel(channel); |
| 1441 | uint8_t psenum = (channel == ECC_CONTACT) ? 1 : 2; |
| 1442 | CLIParserFree(); |
| 1443 | |
| 1444 | SetAPDULogging(showAPDU); |
| 1445 | |
| 1446 | // current path + file name |
| 1447 | if (!strstr(crelfname, ".json")) |
| 1448 | strcat(crelfname, ".json"); |
| 1449 | char fname[strlen(get_my_executable_directory()) + strlen(crelfname) + 1]; |
| 1450 | strcpy(fname, get_my_executable_directory()); |
| 1451 | strcat(fname, crelfname); |
| 1452 | |
| 1453 | if (MergeJSON) { |
| 1454 | root = json_load_file(fname, 0, &error); |
| 1455 | if (!root) { |
| 1456 | PrintAndLogEx(ERR, "json error on line %d: %s", error.line, error.text); |
| 1457 | return 1; |
| 1458 | } |
| 1459 | |
| 1460 | if (!json_is_object(root)) { |
| 1461 | PrintAndLogEx(ERR, "Invalid json format. root must be an object."); |
| 1462 | return 1; |
| 1463 | } |
| 1464 | } else { |
| 1465 | root = json_object(); |
| 1466 | } |
| 1467 | |
| 1468 | // drop field at start |
| 1469 | DropFieldEx( channel ); |
| 1470 | |
| 1471 | JsonSaveStr(root, "$.File.Created", "proxmark3 `emv scan`"); |
| 1472 | |
| 1473 | if (channel == ECC_CONTACTLESS) { |
| 1474 | // iso 14443 select |
| 1475 | PrintAndLogEx(NORMAL, "--> GET UID, ATS."); |
| 1476 | |
| 1477 | iso14a_card_select_t card; |
| 1478 | if (Hf14443_4aGetCardData(&card)) { |
| 1479 | return 2; |
| 1480 | } |
| 1481 | if (!card.uidlen) { |
| 1482 | PrintAndLogEx(ERR, "get ATS error"); |
| 1483 | return 2; |
| 1484 | } |
| 1485 | |
| 1486 | JsonSaveStr(root, "$.Card.Contactless.Communication", "iso14443-4a"); |
| 1487 | JsonSaveBufAsHex(root, "$.Card.Contactless.UID", (uint8_t *)&card.uid, card.uidlen); |
| 1488 | JsonSaveHex(root, "$.Card.Contactless.ATQA", card.atqa[0] + (card.atqa[1] << 2), 2); |
| 1489 | JsonSaveHex(root, "$.Card.Contactless.SAK", card.sak, 0); |
| 1490 | JsonSaveBufAsHex(root, "$.Card.Contactless.ATS", (uint8_t *)card.ats, card.ats_len); |
| 1491 | } else { |
| 1492 | PrintAndLogEx(NORMAL, "--> GET ATR."); |
| 1493 | |
| 1494 | smart_card_atr_t ccard; |
| 1495 | smart_getATR(&ccard); |
| 1496 | |
| 1497 | if (!ccard.atr_len) { |
| 1498 | PrintAndLogEx(ERR, "get ATR error"); |
| 1499 | return 2; |
| 1500 | } |
| 1501 | |
| 1502 | JsonSaveStr(root, "$.Card.Contact.Communication", "iso7816"); |
| 1503 | JsonSaveBufAsHex(root, "$.Card.Contact.ATR", (uint8_t *)ccard.atr, ccard.atr_len); |
| 1504 | } |
| 1505 | |
| 1506 | // init applets list tree |
| 1507 | const char *al = "Applets list"; |
| 1508 | struct tlvdb *tlvSelect = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); |
| 1509 | |
| 1510 | // EMV PPSE |
| 1511 | PrintAndLogEx(NORMAL, "--> PPSE."); |
| 1512 | res = EMVSelectPSE(channel, true, true, 2, buf, sizeof(buf), &len, &sw); |
| 1513 | |
| 1514 | if (!res && sw == 0x9000){ |
| 1515 | if (decodeTLV) |
| 1516 | TLVPrintFromBuffer(buf, len); |
| 1517 | |
| 1518 | JsonSaveBufAsHex(root, "$.PPSE.AID", (uint8_t *)"2PAY.SYS.DDF01", 14); |
| 1519 | |
| 1520 | struct tlvdb *fci = tlvdb_parse_multi(buf, len); |
| 1521 | if (extractTLVElements) |
| 1522 | JsonSaveTLVTree(root, root, "$.PPSE.FCITemplate", fci); |
| 1523 | else |
| 1524 | JsonSaveTLVTreeElm(root, "$.PPSE.FCITemplate", fci, true, true, false); |
| 1525 | JsonSaveTLVValue(root, "$.Application.KernelID", tlvdb_find_full(fci, 0x9f2a)); |
| 1526 | tlvdb_free(fci); |
| 1527 | } |
| 1528 | |
| 1529 | res = EMVSearchPSE(channel, false, true, psenum, decodeTLV, tlvSelect); |
| 1530 | |
| 1531 | // check PPSE and select application id |
| 1532 | if (!res) { |
| 1533 | TLVPrintAIDlistFromSelectTLV(tlvSelect); |
| 1534 | } else { |
| 1535 | // EMV SEARCH with AID list |
| 1536 | SetAPDULogging(false); |
| 1537 | PrintAndLogEx(NORMAL, "--> AID search."); |
| 1538 | if (EMVSearch(channel, false, true, decodeTLV, tlvSelect)) { |
| 1539 | PrintAndLogEx(ERR, "Can't found any of EMV AID. Exit..."); |
| 1540 | tlvdb_free(tlvSelect); |
| 1541 | DropFieldEx( channel ); |
| 1542 | return 3; |
| 1543 | } |
| 1544 | |
| 1545 | // check search and select application id |
| 1546 | TLVPrintAIDlistFromSelectTLV(tlvSelect); |
| 1547 | } |
| 1548 | |
| 1549 | // EMV SELECT application |
| 1550 | SetAPDULogging(showAPDU); |
| 1551 | EMVSelectApplication(tlvSelect, AID, &AIDlen); |
| 1552 | |
| 1553 | tlvdb_free(tlvSelect); |
| 1554 | |
| 1555 | if (!AIDlen) { |
| 1556 | PrintAndLogEx(INFO, "Can't select AID. EMV AID not found. Exit..."); |
| 1557 | DropFieldEx( channel ); |
| 1558 | return 4; |
| 1559 | } |
| 1560 | |
| 1561 | JsonSaveBufAsHex(root, "$.Application.AID", AID, AIDlen); |
| 1562 | |
| 1563 | // Init TLV tree |
| 1564 | const char *alr = "Root terminal TLV tree"; |
| 1565 | struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); |
| 1566 | |
| 1567 | // EMV SELECT applet |
| 1568 | |
| 1569 | PrintAndLogEx(NORMAL, "\n-->Selecting AID:%s.", sprint_hex_inrow(AID, AIDlen)); |
| 1570 | SetAPDULogging(showAPDU); |
| 1571 | res = EMVSelect(channel, false, true, AID, AIDlen, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 1572 | |
| 1573 | if (res) { |
| 1574 | PrintAndLogEx(ERR, "Can't select AID (%d). Exit...", res); |
| 1575 | tlvdb_free(tlvRoot); |
| 1576 | DropFieldEx( channel ); |
| 1577 | return 5; |
| 1578 | } |
| 1579 | |
| 1580 | if (decodeTLV) |
| 1581 | TLVPrintFromBuffer(buf, len); |
| 1582 | |
| 1583 | // save mode |
| 1584 | if (tlvdb_get(tlvRoot, 0x9f38, NULL)) { |
| 1585 | JsonSaveStr(root, "$.Application.Mode", TransactionTypeStr[TrType]); |
| 1586 | } |
| 1587 | |
| 1588 | struct tlvdb *fci = tlvdb_parse_multi(buf, len); |
| 1589 | if (extractTLVElements) |
| 1590 | JsonSaveTLVTree(root, root, "$.Application.FCITemplate", fci); |
| 1591 | else |
| 1592 | JsonSaveTLVTreeElm(root, "$.Application.FCITemplate", fci, true, true, false); |
| 1593 | tlvdb_free(fci); |
| 1594 | |
| 1595 | // create transaction parameters |
| 1596 | PrintAndLogEx(NORMAL, "-->Init transaction parameters."); |
| 1597 | InitTransactionParameters(tlvRoot, paramLoadJSON, TrType, GenACGPO); |
| 1598 | |
| 1599 | PrintAndLogEx(NORMAL, "-->Calc PDOL."); |
| 1600 | struct tlv *pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83); |
| 1601 | if (!pdol_data_tlv){ |
| 1602 | PrintAndLogEx(ERR, "Can't create PDOL TLV."); |
| 1603 | tlvdb_free(tlvRoot); |
| 1604 | DropFieldEx( channel ); |
| 1605 | return 6; |
| 1606 | } |
| 1607 | |
| 1608 | size_t pdol_data_tlv_data_len; |
| 1609 | unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); |
| 1610 | if (!pdol_data_tlv_data) { |
| 1611 | PrintAndLogEx(ERR, "Can't create PDOL data."); |
| 1612 | tlvdb_free(tlvRoot); |
| 1613 | DropFieldEx( channel ); |
| 1614 | return 6; |
| 1615 | } |
| 1616 | PrintAndLogEx(INFO, "PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); |
| 1617 | |
| 1618 | PrintAndLogEx(INFO, "-->GPO."); |
| 1619 | res = EMVGPO(channel, true, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 1620 | |
| 1621 | free(pdol_data_tlv_data); |
| 1622 | free(pdol_data_tlv); |
| 1623 | |
| 1624 | if (res) { |
| 1625 | PrintAndLogEx(ERR, "GPO error(%d): %4x. Exit...", res, sw); |
| 1626 | tlvdb_free(tlvRoot); |
| 1627 | DropFieldEx( channel ); |
| 1628 | return 7; |
| 1629 | } |
| 1630 | ProcessGPOResponseFormat1(tlvRoot, buf, len, decodeTLV); |
| 1631 | |
| 1632 | struct tlvdb *gpofci = tlvdb_parse_multi(buf, len); |
| 1633 | if (extractTLVElements) |
| 1634 | JsonSaveTLVTree(root, root, "$.Application.GPO", gpofci); |
| 1635 | else |
| 1636 | JsonSaveTLVTreeElm(root, "$.Application.GPO", gpofci, true, true, false); |
| 1637 | |
| 1638 | JsonSaveTLVValue(root, "$.ApplicationData.AIP", tlvdb_find_full(gpofci, 0x82)); |
| 1639 | JsonSaveTLVValue(root, "$.ApplicationData.AFL", tlvdb_find_full(gpofci, 0x94)); |
| 1640 | |
| 1641 | tlvdb_free(gpofci); |
| 1642 | |
| 1643 | PrintAndLogEx(INFO, "-->Read records from AFL."); |
| 1644 | const struct tlv *AFL = tlvdb_get(tlvRoot, 0x94, NULL); |
| 1645 | |
| 1646 | while(AFL && AFL->len) { |
| 1647 | if (AFL->len % 4) { |
| 1648 | PrintAndLogEx(ERR, "Wrong AFL length: %d", AFL->len); |
| 1649 | break; |
| 1650 | } |
| 1651 | |
| 1652 | json_t *sfijson = json_path_get(root, "$.Application.Records"); |
| 1653 | if (!sfijson) { |
| 1654 | json_t *app = json_path_get(root, "$.Application"); |
| 1655 | json_object_set_new(app, "Records", json_array()); |
| 1656 | |
| 1657 | sfijson = json_path_get(root, "$.Application.Records"); |
| 1658 | } |
| 1659 | if (!json_is_array(sfijson)) { |
| 1660 | PrintAndLogEx(ERR, "Internal logic error. `$.Application.Records` is not an array."); |
| 1661 | break; |
| 1662 | } |
| 1663 | for (int i = 0; i < AFL->len / 4; i++) { |
| 1664 | uint8_t SFI = AFL->value[i * 4 + 0] >> 3; |
| 1665 | uint8_t SFIstart = AFL->value[i * 4 + 1]; |
| 1666 | uint8_t SFIend = AFL->value[i * 4 + 2]; |
| 1667 | uint8_t SFIoffline = AFL->value[i * 4 + 3]; |
| 1668 | |
| 1669 | PrintAndLogEx(INFO, "--->SFI[%02x] start:%02x end:%02x offline:%02x", SFI, SFIstart, SFIend, SFIoffline); |
| 1670 | if (SFI == 0 || SFI == 31 || SFIstart == 0 || SFIstart > SFIend) { |
| 1671 | PrintAndLogEx(ERR, "SFI ERROR! Skipped..."); |
| 1672 | continue; |
| 1673 | } |
| 1674 | |
| 1675 | for(int n = SFIstart; n <= SFIend; n++) { |
| 1676 | PrintAndLogEx(INFO, "---->SFI[%02x] %d", SFI, n); |
| 1677 | |
| 1678 | res = EMVReadRecord(channel, true, SFI, n, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 1679 | if (res) { |
| 1680 | PrintAndLogEx(ERR, "SFI[%02x]. APDU error %4x", SFI, sw); |
| 1681 | continue; |
| 1682 | } |
| 1683 | |
| 1684 | if (decodeTLV) { |
| 1685 | TLVPrintFromBuffer(buf, len); |
| 1686 | PrintAndLogEx(NORMAL, ""); |
| 1687 | } |
| 1688 | |
| 1689 | json_t *jsonelm = json_object(); |
| 1690 | json_array_append_new(sfijson, jsonelm); |
| 1691 | |
| 1692 | JsonSaveHex(jsonelm, "SFI", SFI, 1); |
| 1693 | JsonSaveHex(jsonelm, "RecordNum", n, 1); |
| 1694 | JsonSaveHex(jsonelm, "Offline", SFIoffline, 1); |
| 1695 | |
| 1696 | struct tlvdb *rsfi = tlvdb_parse_multi(buf, len); |
| 1697 | if (extractTLVElements) |
| 1698 | JsonSaveTLVTree(root, jsonelm, "$.Data", rsfi); |
| 1699 | else |
| 1700 | JsonSaveTLVTreeElm(jsonelm, "$.Data", rsfi, true, true, false); |
| 1701 | tlvdb_free(rsfi); |
| 1702 | } |
| 1703 | } |
| 1704 | |
| 1705 | break; |
| 1706 | } |
| 1707 | |
| 1708 | // getting certificates |
| 1709 | if (tlvdb_get(tlvRoot, 0x90, NULL)) { |
| 1710 | PrintAndLogEx(INFO, "-->Recovering certificates."); |
| 1711 | PKISetStrictExecution(false); |
| 1712 | RecoveryCertificates(tlvRoot, root); |
| 1713 | PKISetStrictExecution(true); |
| 1714 | } |
| 1715 | |
| 1716 | // free tlv object |
| 1717 | tlvdb_free(tlvRoot); |
| 1718 | |
| 1719 | DropFieldEx( channel ); |
| 1720 | |
| 1721 | res = json_dump_file(root, fname, JSON_INDENT(2)); |
| 1722 | if (res) { |
| 1723 | PrintAndLogEx(ERR, "Can't save the file: %s", fname); |
| 1724 | return 200; |
| 1725 | } |
| 1726 | PrintAndLogEx(SUCCESS, "File `%s` saved.", fname); |
| 1727 | |
| 1728 | // free json object |
| 1729 | json_decref(root); |
| 1730 | |
| 1731 | return 0; |
| 1732 | } |
| 1733 | |
| 1734 | int CmdEMVTest(const char *cmd) { |
| 1735 | return ExecuteCryptoTests(true); |
| 1736 | } |
| 1737 | |
| 1738 | int CmdEMVRoca(const char *cmd) { |
| 1739 | uint8_t AID[APDU_DATA_LEN] = {0}; |
| 1740 | size_t AIDlen = 0; |
| 1741 | uint8_t buf[APDU_RESPONSE_LEN] = {0}; |
| 1742 | size_t len = 0; |
| 1743 | uint16_t sw = 0; |
| 1744 | int res; |
| 1745 | uint8_t ODAiList[4096]; |
| 1746 | size_t ODAiListLen = 0; |
| 1747 | |
| 1748 | CLIParserInit("emv roca", |
| 1749 | "Tries to extract public keys and run the ROCA test against them.\n", |
| 1750 | "Usage:\n" |
| 1751 | "\temv roca -w -> select --CONTACT-- card and run test\n" |
| 1752 | "\temv roca -> select --CONTACTLESS-- card and run test\n" |
| 1753 | ); |
| 1754 | |
| 1755 | void* argtable[] = { |
| 1756 | arg_param_begin, |
| 1757 | arg_lit0("tT", "selftest", "self test"), |
| 1758 | arg_lit0("aA", "apdu", "show APDU reqests and responses"), |
| 1759 | arg_lit0("wW", "wired", "Send data via contact (iso7816) interface. Contactless interface set by default."), |
| 1760 | arg_param_end |
| 1761 | }; |
| 1762 | CLIExecWithReturn(cmd, argtable, true); |
| 1763 | |
| 1764 | if (arg_get_lit(1)) |
| 1765 | return roca_self_test(); |
| 1766 | bool showAPDU = arg_get_lit(2); |
| 1767 | |
| 1768 | EMVCommandChannel channel = ECC_CONTACTLESS; |
| 1769 | #ifdef WITH_SMARTCARD |
| 1770 | if (arg_get_lit(3)) |
| 1771 | channel = ECC_CONTACT; |
| 1772 | #endif |
| 1773 | PrintChannel(channel); |
| 1774 | CLIParserFree(); |
| 1775 | |
| 1776 | // select card |
| 1777 | uint8_t psenum = (channel == ECC_CONTACT) ? 1 : 2; |
| 1778 | char *PSE_or_PPSE = psenum == 1 ? "PSE" : "PPSE"; |
| 1779 | |
| 1780 | SetAPDULogging(showAPDU); |
| 1781 | |
| 1782 | // init applets list tree |
| 1783 | const char *al = "Applets list"; |
| 1784 | struct tlvdb *tlvSelect = tlvdb_fixed(1, strlen(al), (const unsigned char *)al); |
| 1785 | |
| 1786 | // EMV PSE/PPSE |
| 1787 | PrintAndLogEx(NORMAL, "--> %s.", PSE_or_PPSE); |
| 1788 | res = EMVSearchPSE(channel, true, true, psenum, false, tlvSelect); |
| 1789 | |
| 1790 | // check PSE/PPSE and select application id |
| 1791 | if (!res) { |
| 1792 | TLVPrintAIDlistFromSelectTLV(tlvSelect); |
| 1793 | } else { |
| 1794 | // EMV SEARCH with AID list |
| 1795 | PrintAndLogEx(NORMAL, "--> AID search."); |
| 1796 | if (EMVSearch(channel, false, true, false, tlvSelect)) { |
| 1797 | PrintAndLogEx(ERR, "Couldn't find any known EMV AID. Exit..."); |
| 1798 | tlvdb_free(tlvSelect); |
| 1799 | DropFieldEx( channel ); |
| 1800 | return 3; |
| 1801 | } |
| 1802 | |
| 1803 | // check search and select application id |
| 1804 | TLVPrintAIDlistFromSelectTLV(tlvSelect); |
| 1805 | } |
| 1806 | |
| 1807 | // EMV SELECT application |
| 1808 | EMVSelectApplication(tlvSelect, AID, &AIDlen); |
| 1809 | |
| 1810 | tlvdb_free(tlvSelect); |
| 1811 | |
| 1812 | if (!AIDlen) { |
| 1813 | PrintAndLogEx(INFO, "Can't select AID. EMV AID not found. Exit..."); |
| 1814 | DropFieldEx( channel ); |
| 1815 | return 4; |
| 1816 | } |
| 1817 | |
| 1818 | // Init TLV tree |
| 1819 | const char *alr = "Root terminal TLV tree"; |
| 1820 | struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr); |
| 1821 | |
| 1822 | // EMV SELECT applet |
| 1823 | PrintAndLogEx(NORMAL, "\n-->Selecting AID:%s.", sprint_hex_inrow(AID, AIDlen)); |
| 1824 | res = EMVSelect(channel, false, true, AID, AIDlen, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 1825 | |
| 1826 | if (res) { |
| 1827 | PrintAndLogEx(ERR, "Can't select AID (%d). Exit...", res); |
| 1828 | tlvdb_free(tlvRoot); |
| 1829 | DropFieldEx( channel ); |
| 1830 | return 5; |
| 1831 | } |
| 1832 | |
| 1833 | PrintAndLog("\n* Init transaction parameters."); |
| 1834 | InitTransactionParameters(tlvRoot, true, TT_QVSDCMCHIP, false); |
| 1835 | |
| 1836 | PrintAndLogEx(NORMAL, "-->Calc PDOL."); |
| 1837 | struct tlv *pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83); |
| 1838 | if (!pdol_data_tlv){ |
| 1839 | PrintAndLogEx(ERR, "Can't create PDOL TLV."); |
| 1840 | tlvdb_free(tlvRoot); |
| 1841 | DropFieldEx( channel ); |
| 1842 | return 6; |
| 1843 | } |
| 1844 | |
| 1845 | size_t pdol_data_tlv_data_len; |
| 1846 | unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len); |
| 1847 | if (!pdol_data_tlv_data) { |
| 1848 | PrintAndLogEx(ERR, "Can't create PDOL data."); |
| 1849 | tlvdb_free(tlvRoot); |
| 1850 | DropFieldEx( channel ); |
| 1851 | return 6; |
| 1852 | } |
| 1853 | PrintAndLogEx(INFO, "PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len)); |
| 1854 | |
| 1855 | PrintAndLogEx(INFO, "-->GPO."); |
| 1856 | res = EMVGPO(channel, true, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 1857 | |
| 1858 | free(pdol_data_tlv_data); |
| 1859 | free(pdol_data_tlv); |
| 1860 | |
| 1861 | if (res) { |
| 1862 | PrintAndLogEx(ERR, "GPO error(%d): %4x. Exit...", res, sw); |
| 1863 | tlvdb_free(tlvRoot); |
| 1864 | DropFieldEx( channel ); |
| 1865 | return 7; |
| 1866 | } |
| 1867 | ProcessGPOResponseFormat1(tlvRoot, buf, len, false); |
| 1868 | |
| 1869 | PrintAndLogEx(INFO, "-->Read records from AFL."); |
| 1870 | const struct tlv *AFL = tlvdb_get(tlvRoot, 0x94, NULL); |
| 1871 | |
| 1872 | while(AFL && AFL->len) { |
| 1873 | if (AFL->len % 4) { |
| 1874 | PrintAndLogEx(ERR, "Wrong AFL length: %d", AFL->len); |
| 1875 | break; |
| 1876 | } |
| 1877 | |
| 1878 | for (int i = 0; i < AFL->len / 4; i++) { |
| 1879 | uint8_t SFI = AFL->value[i * 4 + 0] >> 3; |
| 1880 | uint8_t SFIstart = AFL->value[i * 4 + 1]; |
| 1881 | uint8_t SFIend = AFL->value[i * 4 + 2]; |
| 1882 | uint8_t SFIoffline = AFL->value[i * 4 + 3]; |
| 1883 | |
| 1884 | PrintAndLogEx(INFO, "--->SFI[%02x] start:%02x end:%02x offline:%02x", SFI, SFIstart, SFIend, SFIoffline); |
| 1885 | if (SFI == 0 || SFI == 31 || SFIstart == 0 || SFIstart > SFIend) { |
| 1886 | PrintAndLogEx(ERR, "SFI ERROR! Skipped..."); |
| 1887 | continue; |
| 1888 | } |
| 1889 | |
| 1890 | for(int n = SFIstart; n <= SFIend; n++) { |
| 1891 | PrintAndLogEx(INFO, "---->SFI[%02x] %d", SFI, n); |
| 1892 | |
| 1893 | res = EMVReadRecord(channel, true, SFI, n, buf, sizeof(buf), &len, &sw, tlvRoot); |
| 1894 | if (res) { |
| 1895 | PrintAndLogEx(ERR, "SFI[%02x]. APDU error %4x", SFI, sw); |
| 1896 | continue; |
| 1897 | } |
| 1898 | |
| 1899 | // Build Input list for Offline Data Authentication |
| 1900 | // EMV 4.3 book3 10.3, page 96 |
| 1901 | if (SFIoffline > 0) { |
| 1902 | if (SFI < 11) { |
| 1903 | const unsigned char *abuf = buf; |
| 1904 | size_t elmlen = len; |
| 1905 | struct tlv e; |
| 1906 | if (tlv_parse_tl(&abuf, &elmlen, &e)) { |
| 1907 | memcpy(&ODAiList[ODAiListLen], &buf[len - elmlen], elmlen); |
| 1908 | ODAiListLen += elmlen; |
| 1909 | } else { |
| 1910 | PrintAndLogEx(WARNING, "Error SFI[%02x]. Creating input list for Offline Data Authentication error.", SFI); |
| 1911 | } |
| 1912 | } else { |
| 1913 | memcpy(&ODAiList[ODAiListLen], buf, len); |
| 1914 | ODAiListLen += len; |
| 1915 | } |
| 1916 | |
| 1917 | SFIoffline--; |
| 1918 | } |
| 1919 | } |
| 1920 | } |
| 1921 | |
| 1922 | break; |
| 1923 | } |
| 1924 | |
| 1925 | // copy Input list for Offline Data Authentication |
| 1926 | if (ODAiListLen) { |
| 1927 | struct tlvdb *oda = tlvdb_fixed(0x21, ODAiListLen, ODAiList); // not a standard tag |
| 1928 | tlvdb_add(tlvRoot, oda); |
| 1929 | PrintAndLogEx(NORMAL, "* Input list for Offline Data Authentication added to TLV. len=%d \n", ODAiListLen); |
| 1930 | } |
| 1931 | |
| 1932 | // getting certificates |
| 1933 | if (tlvdb_get(tlvRoot, 0x90, NULL)) { |
| 1934 | PrintAndLogEx(INFO, "-->Recovering certificates."); |
| 1935 | PKISetStrictExecution(false); |
| 1936 | |
| 1937 | struct emv_pk *pk = get_ca_pk(tlvRoot); |
| 1938 | if (!pk) { |
| 1939 | PrintAndLogEx(ERR, "CA Public Key not found. Exit."); |
| 1940 | goto out; |
| 1941 | } |
| 1942 | |
| 1943 | struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlvRoot); |
| 1944 | if (!issuer_pk) { |
| 1945 | emv_pk_free(pk); |
| 1946 | PrintAndLogEx(WARNING, "WARNING: Issuer certificate not found. Exit."); |
| 1947 | goto out; |
| 1948 | } |
| 1949 | |
| 1950 | char RID[15] = {0}; |
| 1951 | memcpy(RID, sprint_hex(issuer_pk->rid, 5), 14); |
| 1952 | PrintAndLogEx(SUCCESS, "Issuer Public Key recovered. RID %s IDX %02hhx CSN %s", |
| 1953 | RID, |
| 1954 | issuer_pk->index, |
| 1955 | sprint_hex(issuer_pk->serial, 3) |
| 1956 | ); |
| 1957 | |
| 1958 | const struct tlv *sda_tlv = tlvdb_get(tlvRoot, 0x21, NULL); |
| 1959 | struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlvRoot, sda_tlv); |
| 1960 | if (!icc_pk) { |
| 1961 | emv_pk_free(pk); |
| 1962 | emv_pk_free(issuer_pk); |
| 1963 | PrintAndLogEx(WARNING, "WARNING: ICC certificate not found. Exit."); |
| 1964 | goto out; |
| 1965 | } |
| 1966 | |
| 1967 | memcpy(RID, sprint_hex(icc_pk->rid, 5), 14); |
| 1968 | PrintAndLogEx(SUCCESS, "ICC Public Key recovered. RID %s IDX %02hhx CSN %s\n", |
| 1969 | RID, |
| 1970 | icc_pk->index, |
| 1971 | sprint_hex(icc_pk->serial, 3) |
| 1972 | ); |
| 1973 | |
| 1974 | PrintAndLogEx(INFO, "ICC Public Key modulus: %s\n", sprint_hex_inrow(icc_pk->modulus, icc_pk->mlen)); |
| 1975 | |
| 1976 | // icc_pk->exp, icc_pk->elen |
| 1977 | // icc_pk->modulus, icc_pk->mlen |
| 1978 | if (icc_pk->elen > 0 && icc_pk->mlen > 0) { |
| 1979 | if (emv_rocacheck(icc_pk->modulus, icc_pk->mlen, false)) { |
| 1980 | PrintAndLogEx(INFO, "ICC Public Key is subject to ROCA vulnerability (it is NOT secure)."); |
| 1981 | } else { |
| 1982 | PrintAndLogEx(INFO, "ICC Public Key is not subject to ROCA vulnerability (it is secure)"); |
| 1983 | } |
| 1984 | } |
| 1985 | |
| 1986 | PKISetStrictExecution(true); |
| 1987 | } |
| 1988 | |
| 1989 | out: |
| 1990 | |
| 1991 | // free tlv object |
| 1992 | tlvdb_free(tlvRoot); |
| 1993 | |
| 1994 | DropFieldEx( channel ); |
| 1995 | return 0; |
| 1996 | } |
| 1997 | |
| 1998 | int CmdHelp(const char *Cmd); |
| 1999 | |
| 2000 | static command_t CommandTable[] = { |
| 2001 | {"help", CmdHelp, 1, "This help"}, |
| 2002 | {"exec", CmdEMVExec, 1, "Executes EMV contactless transaction."}, |
| 2003 | {"pse", CmdEMVPPSE, 1, "Execute PPSE. It selects 2PAY.SYS.DDF01 or 1PAY.SYS.DDF01 directory."}, |
| 2004 | {"search", CmdEMVSearch, 1, "Try to select all applets from applets list and print installed applets."}, |
| 2005 | {"select", CmdEMVSelect, 1, "Select applet."}, |
| 2006 | {"gpo", CmdEMVGPO, 1, "Execute GetProcessingOptions."}, |
| 2007 | {"readrec", CmdEMVReadRecord, 1, "Read files from card."}, |
| 2008 | {"genac", CmdEMVAC, 1, "Generate ApplicationCryptogram."}, |
| 2009 | {"challenge", CmdEMVGenerateChallenge, 1, "Generate challenge."}, |
| 2010 | {"intauth", CmdEMVInternalAuthenticate, 1, "Internal authentication."}, |
| 2011 | {"scan", CmdEMVScan, 1, "Scan EMV card and save it contents to json file for emulator."}, |
| 2012 | {"test", CmdEMVTest, 1, "Crypto logic test."}, |
| 2013 | {"roca", CmdEMVRoca, 1, "Extract public keys and run ROCA test"}, |
| 2014 | {NULL, NULL, 0, NULL} |
| 2015 | }; |
| 2016 | |
| 2017 | int CmdEMV(const char *Cmd) { |
| 2018 | CmdsParse(CommandTable, Cmd); |
| 2019 | return 0; |
| 2020 | } |
| 2021 | |
| 2022 | int CmdHelp(const char *Cmd) { |
| 2023 | CmdsHelp(CommandTable); |
| 2024 | return 0; |
| 2025 | } |