git.zerfleddert.de Git - proxmark3-svn/blob - client/emv/emvcore.c

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2017 Merlok
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // EMV core functions
   9 //-----------------------------------------------------------------------------
  10
  11 #include "emvcore.h"
  12 #include "emvjson.h"
  13 #include "util_posix.h"
  14 #include "protocols.h"
  15 #ifdef WITH_SMARTCARD
  16 #include "cmdsmartcard.h"
  17 #endif
  18
  19 // Got from here. Thanks)
  20 // https://eftlab.co.uk/index.php/site-map/knowledge-base/211-emv-aid-rid-pix
  21 static const char *PSElist [] = {
  22         "325041592E5359532E4444463031", // 2PAY.SYS.DDF01 - Visa Proximity Payment System Environment - PPSE
  23         "315041592E5359532E4444463031"  // 1PAY.SYS.DDF01 - Visa Payment System Environment - PSE
  24 };
  25 //static const size_t PSElistLen = sizeof(PSElist)/sizeof(char*);
  26
  27 char *TransactionTypeStr[] = {
  28         "MSD",
  29         "VSDC",
  30         "qVCDCMCHIP",
  31         "CDA"
  32 };
  33
  34 typedef struct {
  35         enum CardPSVendor vendor;
  36         const char* aid;
  37 } TAIDList;
  38
  39 static const TAIDList AIDlist [] = {
  40         // Visa International
  41         { CV_VISA,  "A00000000305076010"},          // VISA ELO Credit
  42         { CV_VISA,  "A0000000031010" },             // VISA Debit/Credit (Classic)
  43         { CV_VISA,  "A000000003101001" },           // VISA Credit
  44         { CV_VISA,  "A000000003101002" },           // VISA Debit
  45         { CV_VISA,  "A0000000032010" },             // VISA Electron
  46         { CV_VISA,  "A0000000032020" },             // VISA
  47         { CV_VISA,  "A0000000033010" },             // VISA Interlink
  48         { CV_VISA,  "A0000000034010" },             // VISA Specific
  49         { CV_VISA,  "A0000000035010" },             // VISA Specific
  50         { CV_VISA,  "A0000000036010" },             // Domestic Visa Cash Stored Value
  51         { CV_VISA,  "A0000000036020" },             // International Visa Cash Stored Value
  52         { CV_VISA,  "A0000000038002" },             // VISA Auth, VisaRemAuthen EMV-CAP (DPA)
  53         { CV_VISA,  "A0000000038010" },             // VISA Plus
  54         { CV_VISA,  "A0000000039010" },             // VISA Loyalty
  55         { CV_VISA,  "A000000003999910" },           // VISA Proprietary ATM
  56         // Visa USA
  57         { CV_VISA,  "A000000098" },                 // Debit Card
  58         { CV_VISA,  "A0000000980848" },             // Debit Card
  59         // Mastercard International
  60         { CV_MASTERCARD, "A00000000401" },          // MasterCard PayPass
  61         { CV_MASTERCARD, "A0000000041010" },        // MasterCard Credit
  62         { CV_MASTERCARD, "A00000000410101213" },    // MasterCard Credit
  63         { CV_MASTERCARD, "A00000000410101215" },    // MasterCard Credit
  64         { CV_MASTERCARD, "A0000000042010" },        // MasterCard Specific
  65         { CV_MASTERCARD, "A0000000043010" },        // MasterCard Specific
  66         { CV_MASTERCARD, "A0000000043060" },        // Maestro (Debit)
  67         { CV_MASTERCARD, "A000000004306001" },      // Maestro (Debit)
  68         { CV_MASTERCARD, "A0000000044010" },        // MasterCard Specific
  69         { CV_MASTERCARD, "A0000000045010" },        // MasterCard Specific
  70         { CV_MASTERCARD, "A0000000046000" },        // Cirrus
  71         { CV_MASTERCARD, "A0000000048002" },        // SecureCode Auth EMV-CAP
  72         { CV_MASTERCARD, "A0000000049999" },        // MasterCard PayPass
  73         { CV_MASTERCARD, "B012345678" },            // Maestro TEST Used for development
  74         // American Express
  75         { CV_AMERICANEXPRESS, "A000000025" },
  76         { CV_AMERICANEXPRESS, "A0000000250000" },
  77         { CV_AMERICANEXPRESS, "A00000002501" },
  78         { CV_AMERICANEXPRESS, "A000000025010402" },
  79         { CV_AMERICANEXPRESS, "A000000025010701" },
  80         { CV_AMERICANEXPRESS, "A000000025010801" },
  81         // Groupement des Cartes Bancaires "CB"
  82         { CV_CB, "A0000000421010" },                // Cartes Bancaire EMV Card
  83         { CV_CB, "A0000000422010" },
  84         { CV_CB, "A0000000423010" },
  85         { CV_CB, "A0000000424010" },
  86         { CV_CB, "A0000000425010" },
  87         // JCB CO., LTD.
  88         { CV_JCB, "A00000006510" },                 // JCB
  89         { CV_JCB, "A0000000651010" },               // JCB J Smart Credit
  90         // Switch Card Services Ltd.
  91         { CV_SWITCH, "A0000000050001" },            // Maestro UK
  92         { CV_SWITCH, "A0000000050002" },            // Solo
  93         // Diners Club International Ltd.
  94         { CV_DINERS, "A0000001523010" },            // Discover, Pulse D Pas Discover Card
  95         { CV_DINERS, "A0000001524010" },            // Discover, Discover Debit Common Card
  96         // Other
  97         { CV_OTHER, "A00000002401" },               // Midland Bank Plc - Self Service
  98         { CV_OTHER, "A0000000291010" },             // LINK Interchange Network Ltd - Link / American Express
  99         { CV_OTHER, "A00000006900" },               // Société Européenne de Monnaie Electronique SEME - Moneo
 100         { CV_OTHER, "A000000077010000021000000000003B" },  // Oberthur Technologies France - Visa AEPN
 101         { CV_OTHER, "A0000001211010" },             // PBS Danmark A/S - Denmark - Dankort (VISA GEM Vision) - Danish domestic debit card
 102         { CV_OTHER, "A0000001410001" },             // Associazione Bancaria Italiana - Italy - PagoBANCOMAT - CoGeBan Consorzio BANCOMAT (Italian domestic debit card)
 103         { CV_OTHER, "A0000001544442" },             // Banricompras Debito - Banrisul - Banco do Estado do Rio Grande do SUL - S.A.
 104         { CV_OTHER, "A000000172950001" },           // Financial Information Service Co. Ltd. - Taiwan - BAROC Financial Application Taiwan- The Bankers Association of the Republic of China
 105         { CV_OTHER, "A0000001850002" },             // Post Office Limited - United Kingdom - UK Post Office Account card
 106         { CV_OTHER, "A0000002281010" },             // Saudi Arabian Monetary Agency (SAMA) - Kingdom of Saudi Arabia - SPAN (M/Chip) - SPAN2 (Saudi Payments Network) - Saudi Arabia domestic credit/debit card (Saudi Arabia Monetary Agency)
 107         { CV_OTHER, "A0000002282010" },             // Saudi Arabian Monetary Agency (SAMA) - Kingdom of Saudi Arabia - SPAN (VIS) - SPAN2 (Saudi Payments Network) - Saudi Arabia domestic credit/debit card (Saudi Arabia Monetary Agency)
 108         { CV_OTHER, "A0000002771010" },             // Interac Association - Canada - INTERAC - Canadian domestic credit/debit card
 109         { CV_OTHER, "A00000031510100528" },         // Currence Holding/PIN BV - The Netherlands- Currence PuC
 110         { CV_OTHER, "A0000003156020" },             // Currence Holding/PIN BV - The Netherlands - Chipknip
 111         { CV_OTHER, "A0000003591010028001" },       // Euro Alliance of Payment Schemes s.c.r.l. (EAPS) - Belgium - Girocard EAPS - ZKA (Germany)
 112         { CV_OTHER, "A0000003710001" },             // Verve - Nigeria - InterSwitch Verve Card - Nigerian local switch company
 113         { CV_OTHER, "A0000004540010" },             // eTranzact - Nigeria - Etranzact Genesis Card - Nigerian local switch company
 114         { CV_OTHER, "A0000004540011" },             // eTranzact - Nigeria - Etranzact Genesis Card 2 - Nigerian local switch company
 115         { CV_OTHER, "A0000004766C" },               // Google - United States - GOOGLE_PAYMENT_AID
 116         { CV_OTHER, "A0000005241010" },             // RuPay - India - RuPay - RuPay (India)
 117         { CV_OTHER, "A0000006723010" },             // TROY - Turkey - TROY chip credit card - Turkey's Payment Method
 118         { CV_OTHER, "A0000006723020" },             // TROY - Turkey - TROY chip debit card - Turkey's Payment Method
 119         { CV_OTHER, "A0000007705850" },             // Indian Oil Corporation Limited - India - XTRAPOWER Fleet Card Program - Indian Oil’s Pre Paid Program
 120         { CV_OTHER, "D27600002545500100" },         // ZKA - Germany - Girocard - ZKA Girocard (Geldkarte) (Germany)
 121         { CV_OTHER, "D5280050218002" },             // The Netherlands - ? - (Netherlands)
 122         { CV_OTHER, "D5780000021010" },             // Bankaxept    Norway  Bankaxept   Norwegian domestic debit card
 123         { CV_OTHER, "F0000000030001" },             // BRADESCO - Brazilian Bank Banco Bradesco
 124 };
 125 static const size_t AIDlistLen = sizeof(AIDlist)/sizeof(TAIDList);
 126
 127 static bool APDULogging = false;
 128 void SetAPDULogging(bool logging) {
 129         APDULogging = logging;
 130 }
 131
 132 enum CardPSVendor GetCardPSVendor(uint8_t * AID, size_t AIDlen) {
 133         char buf[100] = {0};
 134         if (AIDlen < 1)
 135                 return CV_NA;
 136
 137         hex_to_buffer((uint8_t *)buf, AID, AIDlen, sizeof(buf) - 1, 0, 0, true);
 138
 139         for(int i = 0; i < AIDlistLen; i ++) {
 140                 if (strncmp(AIDlist[i].aid, buf, strlen(AIDlist[i].aid)) == 0){
 141                         return AIDlist[i].vendor;
 142                 }
 143         }
 144
 145         return CV_NA;
 146 }
 147
 148 static bool print_cb(void *data, const struct tlv *tlv, int level, bool is_leaf) {
 149         emv_tag_dump(tlv, stdout, level);
 150         if (is_leaf) {
 151                 dump_buffer(tlv->value, tlv->len, stdout, level);
 152         }
 153
 154         return true;
 155 }
 156
 157 bool TLVPrintFromBuffer(uint8_t *data, int datalen) {
 158         struct tlvdb *t = NULL;
 159         t = tlvdb_parse_multi(data, datalen);
 160         if (t) {
 161                 PrintAndLogEx(NORMAL, "-------------------- TLV decoded --------------------");
 162
 163                 tlvdb_visit(t, print_cb, NULL, 0);
 164                 tlvdb_free(t);
 165                 return true;
 166         } else {
 167                 PrintAndLogEx(WARNING, "TLV ERROR: Can't parse response as TLV tree.");
 168         }
 169         return false;
 170 }
 171
 172 void TLVPrintFromTLVLev(struct tlvdb *tlv, int level) {
 173         if (!tlv)
 174                 return;
 175
 176         tlvdb_visit(tlv, print_cb, NULL, level);
 177 }
 178
 179 void TLVPrintFromTLV(struct tlvdb *tlv) {
 180         TLVPrintFromTLVLev(tlv, 0);
 181 }
 182
 183 void TLVPrintAIDlistFromSelectTLV(struct tlvdb *tlv) {
 184         PrintAndLogEx(NORMAL, "|------------------|--------|-------------------------|");
 185         PrintAndLogEx(NORMAL, "|    AID           |Priority| Name                    |");
 186         PrintAndLogEx(NORMAL, "|------------------|--------|-------------------------|");
 187
 188         struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f);
 189         if (!ttmp)
 190                 PrintAndLogEx(NORMAL, "|                         none                        |");
 191
 192         while (ttmp) {
 193                 const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x84, NULL);
 194                 const struct tlv *tgName = tlvdb_get_inchild(ttmp, 0x50, NULL);
 195                 const struct tlv *tgPrio = tlvdb_get_inchild(ttmp, 0x87, NULL);
 196                 if (!tgAID)
 197                         break;
 198                 PrintAndLogEx(NORMAL, "|%s|   %s  |%s|",
 199                         sprint_hex_inrow_ex(tgAID->value, tgAID->len, 18),
 200                         (tgPrio) ? sprint_hex(tgPrio->value, 1) : "   ",
 201                         (tgName) ? sprint_ascii_ex(tgName->value, tgName->len, 25) : "                         ");
 202
 203                 ttmp = tlvdb_find_next(ttmp, 0x6f);
 204         }
 205
 206         PrintAndLogEx(NORMAL, "|------------------|--------|-------------------------|");
 207 }
 208
 209 struct tlvdb *GetPANFromTrack2(const struct tlv *track2) {
 210         char track2Hex[200] = {0};
 211         uint8_t PAN[100] = {0};
 212         int PANlen = 0;
 213         char *tmp = track2Hex;
 214
 215         if (!track2)
 216                 return NULL;
 217
 218         for (int i = 0; i < track2->len; ++i, tmp += 2)
 219                 sprintf(tmp, "%02x", (unsigned int)track2->value[i]);
 220
 221         int posD = strchr(track2Hex, 'd') - track2Hex;
 222         if (posD < 1)
 223                 return NULL;
 224
 225         track2Hex[posD] = 0;
 226         if (strlen(track2Hex) % 2) {
 227                 track2Hex[posD] = 'F';
 228                 track2Hex[posD + 1] = '\0';
 229         }
 230
 231         param_gethex_to_eol(track2Hex, 0, PAN, sizeof(PAN), &PANlen);
 232
 233   return tlvdb_fixed(0x5a, PANlen, PAN);
 234 }
 235
 236 struct tlvdb *GetdCVVRawFromTrack2(const struct tlv *track2) {
 237         char track2Hex[200] = {0};
 238         char dCVVHex[100] = {0};
 239         uint8_t dCVV[100] = {0};
 240         int dCVVlen = 0;
 241         const int PINlen = 5; // must calculated from 9F67 MSD Offset but i have not seen this tag)
 242         char *tmp = track2Hex;
 243
 244         if (!track2)
 245                 return NULL;
 246
 247         for (int i = 0; i < track2->len; ++i, tmp += 2)
 248                 sprintf(tmp, "%02x", (unsigned int)track2->value[i]);
 249
 250         int posD = strchr(track2Hex, 'd') - track2Hex;
 251         if (posD < 1)
 252                 return NULL;
 253
 254         memset(dCVVHex, '0', 32);
 255         // ATC
 256         memcpy(dCVVHex + 0, track2Hex + posD + PINlen + 11, 4);
 257         // PAN 5 hex
 258         memcpy(dCVVHex + 4, track2Hex, 5);
 259         // expire date
 260         memcpy(dCVVHex + 9, track2Hex + posD + 1, 4);
 261         // service code
 262         memcpy(dCVVHex + 13, track2Hex + posD + 5, 3);
 263
 264         param_gethex_to_eol(dCVVHex, 0, dCVV, sizeof(dCVV), &dCVVlen);
 265
 266   return tlvdb_fixed(0x02, dCVVlen, dCVV);
 267 }
 268
 269
 270 static int EMVExchangeEx(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldON, uint8_t *apdu, int apdu_len, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv)
 271 {
 272         *ResultLen = 0;
 273         if (sw) *sw = 0;
 274         uint16_t isw = 0;
 275         int res = 0;
 276
 277         if (ActivateField && channel == ECC_CONTACTLESS) {
 278                 DropField();
 279                 msleep(50);
 280         }
 281
 282         if (APDULogging)
 283                 PrintAndLogEx(SUCCESS, ">>>> %s", sprint_hex(apdu, apdu_len));
 284
 285         switch(channel) {
 286                 case ECC_CONTACTLESS:
 287                         // 6 byes + data = INS + CLA + P1 + P2 + Lc + <data = Nc> + Le(?IncludeLe)
 288                         res = ExchangeAPDU14a(apdu, apdu_len, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen);
 289                         if (res) {
 290                                 return res;
 291                         }
 292                         break;
 293                 case ECC_CONTACT:
 294                         //int ExchangeAPDUSC(uint8_t *datain, int datainlen, bool activateCard, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen);
 295 #ifdef WITH_SMARTCARD
 296                         res = ExchangeAPDUSC(apdu, apdu_len, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen);
 297                         if (res) {
 298                                 return res;
 299                         }
 300 #endif
 301                         break;
 302         }
 303
 304         if (APDULogging)
 305                 PrintAndLogEx(SUCCESS, "<<<< %s", sprint_hex(Result, *ResultLen));
 306
 307         if (*ResultLen < 2) {
 308                 return 200;
 309         }
 310
 311 /*      if (Result[*ResultLen-2] == 0x61) {
 312                 uint8_t La = Result[*ResultLen-1];
 313                 uint8_t get_response[5] = {apdu[0], ISO7816_GET_RESPONSE, 0x00, 0x00, La};
 314                 return EMVExchangeEx(channel, false, LeaveFieldON, get_response, sizeof(get_response), Result, MaxResultLen, ResultLen, sw, tlv);
 315         }*/
 316
 317         *ResultLen -= 2;
 318         isw = Result[*ResultLen] * 0x0100 + Result[*ResultLen + 1];
 319         if (sw)
 320                 *sw = isw;
 321
 322         if (isw != 0x9000) {
 323                 if (APDULogging) {
 324                         PrintAndLogEx(ERR, "APDU(%02x%02x) ERROR: [%4X] %s", apdu[0], apdu[1], isw, GetAPDUCodeDescription(*sw >> 8, *sw & 0xff));
 325                         return 5;
 326                 }
 327         }
 328
 329         // add to tlv tree
 330         if (tlv) {
 331                 struct tlvdb *t = tlvdb_parse_multi(Result, *ResultLen);
 332                 tlvdb_add(tlv, t);
 333         }
 334
 335         return 0;
 336 }
 337
 338 int EMVExchange(EMVCommandChannel channel, bool LeaveFieldON, uint8_t *apdu, int apdu_len, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv)
 339 {
 340         uint8_t APDU[APDU_COMMAND_LEN];
 341         memcpy(APDU, apdu, apdu_len);
 342         APDU[apdu_len] = 0x00;
 343         if (channel == ECC_CONTACTLESS) {
 344                 if (apdu_len == 5 && apdu[4] == 0) {
 345                         // there is no Lc but an Le == 0 already
 346                 } else if (apdu_len > 5 && apdu_len == 5 + apdu[4] + 1) {
 347                         // there is Lc, data and Le
 348                 } else {
 349                         if (apdu[1] != 0xc0)
 350                                 apdu_len++; // no Le, add Le = 0x00 because some vendors require it for contactless
 351                 }
 352         }
 353         return EMVExchangeEx(channel, false, LeaveFieldON, APDU, apdu_len, Result, MaxResultLen, ResultLen, sw, tlv);
 354 }
 355
 356 int EMVSelect(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldON, uint8_t *AID, size_t AIDLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv)
 357 {
 358         uint8_t Select_APDU[APDU_COMMAND_LEN] = {0x00, ISO7816_SELECT_FILE, 0x04, 0x00, AIDLen, 0x00};
 359         memcpy(Select_APDU + 5, AID, AIDLen);
 360         int apdulen = 5 + AIDLen;
 361         if (channel == ECC_CONTACTLESS) {
 362                 apdulen++;  // some vendors require Le = 0x00 for contactless operations
 363         }
 364         return EMVExchangeEx(channel, ActivateField, LeaveFieldON, Select_APDU, apdulen, Result, MaxResultLen, ResultLen, sw, tlv);
 365 }
 366
 367 int EMVSelectPSE(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldON, uint8_t PSENum, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw) {
 368         uint8_t buf[APDU_DATA_LEN] = {0};
 369         *ResultLen = 0;
 370         int len = 0;
 371         int res = 0;
 372         switch (PSENum) {
 373                 case 1:
 374                         param_gethex_to_eol(PSElist[1], 0, buf, sizeof(buf), &len);
 375                         break;
 376                 case 2:
 377
 378                         param_gethex_to_eol(PSElist[0], 0, buf, sizeof(buf), &len);
 379                         break;
 380                 default:
 381                         return -1;
 382         }
 383
 384         // select
 385         res = EMVSelect(channel, ActivateField, LeaveFieldON, buf, len, Result, MaxResultLen, ResultLen, sw, NULL);
 386
 387         return res;
 388 }
 389
 390
 391 int EMVSelectWithRetry(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldON, uint8_t *AID, size_t AIDLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
 392         int retrycnt = 0;
 393         int res = 0;
 394         do {
 395                 res = EMVSelect(channel, false, true, AID, AIDLen, Result, MaxResultLen, ResultLen, sw, tlv);
 396
 397                 // retry if error and not returned sw error
 398                 if (res && res != 5) {
 399                         if (++retrycnt < 3){
 400                                 continue;
 401                         } else {
 402                                 // card select error, proxmark error
 403                                 if (res == 1) {
 404                                         PrintAndLogEx(WARNING, "Exit...");
 405                                         return 1;
 406                                 }
 407
 408                                 retrycnt = 0;
 409                                 PrintAndLogEx(NORMAL, "Retry failed [%s]. Skiped...", sprint_hex_inrow(AID, AIDLen));
 410                                 return res;
 411                         }
 412                 }
 413         } while (res && res != 5);
 414
 415         return res;
 416 }
 417
 418
 419 int EMVCheckAID(EMVCommandChannel channel, bool decodeTLV, struct tlvdb *tlvdbelm, struct tlvdb *tlv){
 420         uint8_t data[APDU_RESPONSE_LEN] = {0};
 421         size_t datalen = 0;
 422         int res = 0;
 423         uint16_t sw = 0;
 424
 425         while (tlvdbelm) {
 426                 const struct tlv *tgAID = tlvdb_get_inchild(tlvdbelm, 0x4f, NULL);
 427                 if (tgAID) {
 428                         res = EMVSelectWithRetry(channel, false, true, (uint8_t *)tgAID->value, tgAID->len, data, sizeof(data), &datalen, &sw, tlv);
 429
 430                         // if returned sw error
 431                         if (res == 5) {
 432                                 // next element
 433                                 tlvdbelm = tlvdb_find_next(tlvdbelm, 0x61);
 434                                 continue;
 435                         }
 436
 437                         if (res)
 438                                 break;
 439
 440                         // all is ok
 441                         if (decodeTLV){
 442                                 PrintAndLogEx(NORMAL, "%s:", sprint_hex_inrow(tgAID->value, tgAID->len));
 443                                 TLVPrintFromBuffer(data, datalen);
 444                         }
 445                 }
 446                 tlvdbelm = tlvdb_find_next(tlvdbelm, 0x61);
 447         }
 448         return res;
 449 }
 450
 451
 452 int EMVSearchPSE(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldON, uint8_t PSENum, bool decodeTLV, struct tlvdb *tlv) {
 453         uint8_t data[APDU_RESPONSE_LEN] = {0};
 454         size_t datalen = 0;
 455         uint8_t sfidata[0x11][APDU_RESPONSE_LEN] = {0};
 456         size_t sfidatalen[0x11] = {0};
 457         uint16_t sw = 0;
 458         int res;
 459         bool fileFound = false;
 460
 461         char *PSE_or_PPSE = PSENum == 1 ? "PSE" : "PPSE";
 462
 463         // select PPSE
 464         res = EMVSelectPSE(channel, ActivateField, true, PSENum, data, sizeof(data), &datalen, &sw);
 465
 466         if (!res){
 467                 if (sw != 0x9000) {
 468                         PrintAndLogEx(FAILED, "Select PSE error. APDU error: %04x.", sw);
 469                         return 1;
 470                 }
 471
 472                 struct tlvdb *t = NULL;
 473                 t = tlvdb_parse_multi(data, datalen);
 474                 if (t) {
 475                         // PSE/PPSE with SFI
 476                         struct tlvdb *tsfi = tlvdb_find_path(t, (tlv_tag_t[]){0x6f, 0xa5, 0x88, 0x00});
 477                         if (tsfi) {
 478                                 uint8_t sfin = 0;
 479                                 tlv_get_uint8(tlvdb_get_tlv(tsfi), &sfin);
 480                                 PrintAndLogEx(INFO, "* PPSE get SFI: 0x%02x.", sfin);
 481
 482                                 for (uint8_t ui = 0x01; ui <= 0x10; ui++) {
 483                                         PrintAndLogEx(INFO, "* * Get SFI: 0x%02x. num: 0x%02x", sfin, ui);
 484                                         res = EMVReadRecord(channel, true, sfin, ui, sfidata[ui], APDU_RESPONSE_LEN, &sfidatalen[ui], &sw, NULL);
 485
 486                                         // end of records
 487                                         if (sw == 0x6a83) {
 488                                                 sfidatalen[ui] = 0;
 489                                                 PrintAndLogEx(INFO, "* * PPSE get SFI. End of records.");
 490                                                 break;
 491                                         }
 492
 493                                         // error catch!
 494                                         if (sw != 0x9000) {
 495                                                 sfidatalen[ui] = 0;
 496                                                 PrintAndLogEx(FAILED, "PPSE get Error. APDU error: %04x.", sw);
 497                                                 break;
 498                                         }
 499
 500                                         if (decodeTLV){
 501                                                 TLVPrintFromBuffer(sfidata[ui], sfidatalen[ui]);
 502                                         }
 503                                 }
 504
 505                                 for (uint8_t ui = 0x01; ui <= 0x10; ui++) {
 506                                         if (sfidatalen[ui]) {
 507                                                 struct tlvdb *tsfi = NULL;
 508                                                 tsfi = tlvdb_parse_multi(sfidata[ui], sfidatalen[ui]);
 509                                                 if (tsfi) {
 510                                                         struct tlvdb *tsfitmp = tlvdb_find_path(tsfi, (tlv_tag_t[]){0x70, 0x61, 0x00});
 511                                                         if (!tsfitmp) {
 512                                                                 PrintAndLogEx(FAILED, "SFI 0x%02d doesn't have any records.", sfidatalen[ui]);
 513                                                                 continue;
 514                                                         }
 515                                                         res = EMVCheckAID(channel, decodeTLV, tsfitmp, tlv);
 516                                                         fileFound = true;
 517                                                 }
 518                                                 tlvdb_free(tsfi);
 519                                         }
 520                                 }
 521                         }
 522
 523
 524                         // PSE/PPSE plain (wo SFI)
 525                         struct tlvdb *ttmp = tlvdb_find_path(t, (tlv_tag_t[]){0x6f, 0xa5, 0xbf0c, 0x61, 0x00});
 526                         if (ttmp) {
 527                                 res = EMVCheckAID(channel, decodeTLV, ttmp, tlv);
 528                                 fileFound = true;
 529                         }
 530
 531                         if (!fileFound)
 532                                 PrintAndLogEx(FAILED, "PPSE doesn't have any records.");
 533
 534                         tlvdb_free(t);
 535                 } else {
 536                         PrintAndLogEx(WARNING, "%s ERROR: Can't get TLV from response.", PSE_or_PPSE);
 537                 }
 538         } else {
 539                 PrintAndLogEx(WARNING, "%s ERROR: Can't select PPSE AID. Error: %d", PSE_or_PPSE, res);
 540         }
 541
 542         if(!LeaveFieldON && channel == ECC_CONTACTLESS)
 543                 DropField();
 544
 545         return res;
 546 }
 547
 548 int EMVSearch(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldON, bool decodeTLV, struct tlvdb *tlv) {
 549         uint8_t aidbuf[APDU_DATA_LEN] = {0};
 550         int aidlen = 0;
 551         uint8_t data[APDU_RESPONSE_LEN] = {0};
 552         size_t datalen = 0;
 553         uint16_t sw = 0;
 554
 555         int res = 0;
 556         int retrycnt = 0;
 557         for(int i = 0; i < AIDlistLen; i ++) {
 558                 param_gethex_to_eol(AIDlist[i].aid, 0, aidbuf, sizeof(aidbuf), &aidlen);
 559                 res = EMVSelect(channel, (i == 0) ? ActivateField : false, (i == AIDlistLen - 1) ? LeaveFieldON : true, aidbuf, aidlen, data, sizeof(data), &datalen, &sw, tlv);
 560                 // retry if error and not returned sw error
 561                 if (res && res != 5) {
 562                         if (++retrycnt < 3){
 563                                 i--;
 564                         } else {
 565                                 // (1) - card select error, proxmark error OR (200) - result length = 0
 566                                 if (res == 1 || res == 200) {
 567                                         PrintAndLogEx(WARNING, "Exit...");
 568                                         return 1;
 569                                 }
 570
 571                                 retrycnt = 0;
 572                                 PrintAndLogEx(FAILED, "Retry failed [%s]. Skipped...", AIDlist[i].aid);
 573                         }
 574                         continue;
 575                 }
 576                 retrycnt = 0;
 577
 578                 if (res)
 579                         continue;
 580
 581                 if (!datalen)
 582                         continue;
 583
 584                 if (decodeTLV) {
 585                         PrintAndLogEx(SUCCESS, "%s", AIDlist[i].aid);
 586                         TLVPrintFromBuffer(data, datalen);
 587                 }
 588         }
 589
 590         return 0;
 591 }
 592
 593 int EMVSelectApplication(struct tlvdb *tlv, uint8_t *AID, size_t *AIDlen) {
 594         // check priority. 0x00 - highest
 595         int prio = 0xffff;
 596
 597         *AIDlen = 0;
 598
 599         struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f);
 600         if (!ttmp)
 601                 return 1;
 602
 603         while (ttmp) {
 604                 const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x84, NULL);
 605                 const struct tlv *tgPrio = tlvdb_get_inchild(ttmp, 0x87, NULL);
 606
 607                 if (!tgAID)
 608                         break;
 609
 610                 if (tgPrio) {
 611                         int pt = bytes_to_num((uint8_t*)tgPrio->value, (tgPrio->len < 2) ? tgPrio->len : 2);
 612                         if (pt < prio) {
 613                                 prio = pt;
 614
 615                                 memcpy(AID, tgAID->value, tgAID->len);
 616                                 *AIDlen = tgAID->len;
 617                         }
 618                 } else {
 619                         // takes the first application from list wo priority
 620                         if (!*AIDlen) {
 621                         memcpy(AID, tgAID->value, tgAID->len);
 622                         *AIDlen = tgAID->len;
 623                         }
 624                 }
 625
 626                 ttmp = tlvdb_find_next(ttmp, 0x6f);
 627         }
 628
 629         return 0;
 630 }
 631
 632 int EMVGPO(EMVCommandChannel channel, bool LeaveFieldON, uint8_t *PDOL, size_t PDOLLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv)
 633 {
 634         uint8_t GPO_APDU[APDU_COMMAND_LEN] = {0x80, 0xa8, 0x00, 0x00, PDOLLen, 0x00};
 635         memcpy(GPO_APDU + 5, PDOL, PDOLLen);
 636         int apdulen = 5 + PDOLLen;
 637
 638         return EMVExchange(channel, LeaveFieldON, GPO_APDU, apdulen, Result, MaxResultLen, ResultLen, sw, tlv);
 639 }
 640
 641 int EMVReadRecord(EMVCommandChannel channel, bool LeaveFieldON, uint8_t SFI, uint8_t SFIrec, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv)
 642 {
 643         uint8_t read_APDU[5] = {0x00, ISO7816_READ_RECORDS, SFIrec, (SFI << 3) | 0x04, 0x00};
 644         int res = EMVExchange(channel, LeaveFieldON, read_APDU, sizeof(read_APDU), Result, MaxResultLen, ResultLen, sw, tlv);
 645         if (*sw == 0x6700) {
 646                 PrintAndLogEx(INFO, ">>> trying to reissue command withouth Le...");
 647                 res = EMVExchangeEx(channel, false, LeaveFieldON, read_APDU, sizeof(read_APDU), Result, MaxResultLen, ResultLen, sw, tlv);
 648         }
 649         return res;
 650 }
 651
 652 int EMVAC(EMVCommandChannel channel, bool LeaveFieldON, uint8_t RefControl, uint8_t *CDOL, size_t CDOLLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv)
 653 {
 654         uint8_t CDOL_APDU[APDU_COMMAND_LEN] = {0x80, 0xae, RefControl, 0x00, CDOLLen, 0x00};
 655         memcpy(CDOL_APDU + 5, CDOL, CDOLLen);
 656         int apdulen = 5 + CDOLLen;
 657
 658         return EMVExchange(channel, LeaveFieldON, CDOL_APDU, apdulen, Result, MaxResultLen, ResultLen, sw, tlv);
 659 }
 660
 661 int EMVGenerateChallenge(EMVCommandChannel channel, bool LeaveFieldON, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv)
 662 {
 663         uint8_t get_challenge_APDU[APDU_COMMAND_LEN] = {0x00, ISO7816_GET_CHALLENGE, 0x00, 0x00};
 664
 665         int res = EMVExchange(channel, LeaveFieldON, get_challenge_APDU, 4, Result, MaxResultLen, ResultLen, sw, tlv);
 666         if (*sw == 0x6700) {
 667                 PrintAndLogEx(INFO, ">>> trying to reissue command withouth Le...");
 668                 res = EMVExchangeEx(channel, false, LeaveFieldON, get_challenge_APDU, 4, Result, MaxResultLen, ResultLen, sw, tlv);
 669         }
 670         return res;
 671 }
 672
 673 int EMVInternalAuthenticate(EMVCommandChannel channel, bool LeaveFieldON, uint8_t *DDOL, size_t DDOLLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv)
 674 {
 675         uint8_t authenticate_APDU[APDU_COMMAND_LEN] = {0x00, ISO7816_INTERNAL_AUTHENTICATION, 0x00, 0x00, DDOLLen, 0x00};
 676         memcpy(authenticate_APDU + 5, DDOL, DDOLLen);
 677         int apdulen = 5 + DDOLLen;
 678
 679         return EMVExchange(channel, LeaveFieldON, authenticate_APDU, apdulen, Result, MaxResultLen, ResultLen, sw, tlv);
 680 }
 681
 682 int MSCComputeCryptoChecksum(EMVCommandChannel channel, bool LeaveFieldON, uint8_t *UDOL, uint8_t UDOLlen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv)
 683 {
 684         uint8_t checksum_APDU[APDU_COMMAND_LEN] = {0x80, 0x2a, 0x8e, 0x80, UDOLlen, 0x00};
 685         memcpy(checksum_APDU + 5, UDOL, UDOLlen);
 686         int apdulen = 5 + UDOLlen;
 687
 688         return EMVExchange(channel, LeaveFieldON, checksum_APDU, apdulen, Result, MaxResultLen, ResultLen, sw, tlv);
 689 }
 690
 691 // Authentication
 692 struct emv_pk *get_ca_pk(struct tlvdb *db) {
 693         const struct tlv *df_tlv = tlvdb_get(db, 0x84, NULL);
 694         const struct tlv *caidx_tlv = tlvdb_get(db, 0x8f, NULL);
 695
 696         if (!df_tlv || !caidx_tlv || df_tlv->len < 6 || caidx_tlv->len != 1)
 697                 return NULL;
 698
 699         PrintAndLogEx(NORMAL, "CA public key index 0x%0x", caidx_tlv->value[0]);
 700         return emv_pk_get_ca_pk(df_tlv->value, caidx_tlv->value[0]);
 701 }
 702
 703 int trSDA(struct tlvdb *tlv) {
 704
 705         struct emv_pk *pk = get_ca_pk(tlv);
 706         if (!pk) {
 707                 PrintAndLogEx(WARNING, "Error: Key not found. Exit.");
 708                 return 2;
 709         }
 710
 711         struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
 712         if (!issuer_pk) {
 713                 emv_pk_free(pk);
 714                 PrintAndLogEx(WARNING, "Error: Issuer certificate not found. Exit.");
 715                 return 2;
 716         }
 717
 718         PrintAndLogEx(SUCCESS, "Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx",
 719                 issuer_pk->rid[0],
 720                 issuer_pk->rid[1],
 721                 issuer_pk->rid[2],
 722                 issuer_pk->rid[3],
 723                 issuer_pk->rid[4],
 724                 issuer_pk->index,
 725                 issuer_pk->serial[0],
 726                 issuer_pk->serial[1],
 727                 issuer_pk->serial[2]
 728                 );
 729
 730         const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
 731         if (!sda_tlv || sda_tlv->len < 1) {
 732                 emv_pk_free(issuer_pk);
 733                 emv_pk_free(pk);
 734                 PrintAndLogEx(WARNING, "Can't find input list for Offline Data Authentication. Exit.");
 735                 return 3;
 736         }
 737
 738         struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
 739         if (dac_db) {
 740                 const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
 741                 PrintAndLogEx(NORMAL, "SDA verified OK. (Data Authentication Code: %02hhx:%02hhx)\n", dac_tlv->value[0], dac_tlv->value[1]);
 742                 tlvdb_add(tlv, dac_db);
 743         } else {
 744                 emv_pk_free(issuer_pk);
 745                 emv_pk_free(pk);
 746                 PrintAndLogEx(WARNING, "SSAD verify error");
 747                 return 4;
 748         }
 749
 750         emv_pk_free(issuer_pk);
 751         emv_pk_free(pk);
 752         return 0;
 753 }
 754
 755 static const unsigned char default_ddol_value[] = {0x9f, 0x37, 0x04};
 756 static struct tlv default_ddol_tlv = {.tag = 0x9f49, .len = 3, .value = default_ddol_value };
 757
 758 int trDDA(EMVCommandChannel channel, bool decodeTLV, struct tlvdb *tlv) {
 759         uint8_t buf[APDU_RESPONSE_LEN] = {0};
 760         size_t len = 0;
 761         uint16_t sw = 0;
 762
 763         struct emv_pk *pk = get_ca_pk(tlv);
 764         if (!pk) {
 765                 PrintAndLogEx(WARNING, "Error: Key not found. Exit.");
 766                 return 2;
 767         }
 768
 769         const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
 770 /*      if (!sda_tlv || sda_tlv->len < 1) { it may be 0!!!!
 771                 emv_pk_free(pk);
 772                 PrintAndLogEx(WARNING, "Error: Can't find input list for Offline Data Authentication. Exit.");
 773                 return 3;
 774         }
 775 */
 776         struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
 777         if (!issuer_pk) {
 778                 emv_pk_free(pk);
 779                 PrintAndLogEx(WARNING, "Error: Issuer certificate not found. Exit.");
 780                 return 2;
 781         }
 782         PrintAndLogEx(SUCCESS, "Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
 783                         issuer_pk->rid[0],
 784                         issuer_pk->rid[1],
 785                         issuer_pk->rid[2],
 786                         issuer_pk->rid[3],
 787                         issuer_pk->rid[4],
 788                         issuer_pk->index,
 789                         issuer_pk->serial[0],
 790                         issuer_pk->serial[1],
 791                         issuer_pk->serial[2]
 792                         );
 793
 794         struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlv, sda_tlv);
 795         if (!icc_pk) {
 796                 emv_pk_free(pk);
 797                 emv_pk_free(issuer_pk);
 798                 PrintAndLogEx(WARNING, "Error: ICC certificate not found. Exit.");
 799                 return 2;
 800         }
 801         PrintAndLogEx(SUCCESS, "ICC PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
 802                         icc_pk->rid[0],
 803                         icc_pk->rid[1],
 804                         icc_pk->rid[2],
 805                         icc_pk->rid[3],
 806                         icc_pk->rid[4],
 807                         icc_pk->index,
 808                         icc_pk->serial[0],
 809                         icc_pk->serial[1],
 810                         icc_pk->serial[2]
 811                         );
 812
 813         if (tlvdb_get(tlv, 0x9f2d, NULL)) {
 814                 struct emv_pk *icc_pe_pk = emv_pki_recover_icc_pe_cert(issuer_pk, tlv);
 815                 if (!icc_pe_pk) {
 816                         PrintAndLogEx(WARNING, "WARNING: ICC PE PK recover error. ");
 817                 } else {
 818                         PrintAndLogEx(SUCCESS, "ICC PE PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
 819                                         icc_pe_pk->rid[0],
 820                                         icc_pe_pk->rid[1],
 821                                         icc_pe_pk->rid[2],
 822                                         icc_pe_pk->rid[3],
 823                                         icc_pe_pk->rid[4],
 824                                         icc_pe_pk->index,
 825                                         icc_pe_pk->serial[0],
 826                                         icc_pe_pk->serial[1],
 827                                         icc_pe_pk->serial[2]
 828                                         );
 829                 }
 830         } else {
 831                 PrintAndLogEx(INFO, "ICC PE PK (PIN Encipherment Public Key Certificate) not found.\n");
 832         }
 833
 834         // 9F4B: Signed Dynamic Application Data
 835         const struct tlv *sdad_tlv = tlvdb_get(tlv, 0x9f4b, NULL);
 836         // DDA with internal authenticate OR fDDA with filled 0x9F4B tag (GPO result)
 837         // EMV kernel3 v2.4, contactless book C-3, C.1., page 147
 838         if (sdad_tlv) {
 839                 PrintAndLogEx(NORMAL, "\n* * Got Signed Dynamic Application Data (9F4B) form GPO. Maybe fDDA...");
 840
 841                 const struct tlvdb *atc_db = emv_pki_recover_atc_ex(icc_pk, tlv, true);
 842                 if (!atc_db) {
 843                         PrintAndLogEx(WARNING, "Error: Can't recover IDN (ICC Dynamic Number)");
 844                         emv_pk_free(pk);
 845                         emv_pk_free(issuer_pk);
 846                         emv_pk_free(icc_pk);
 847                         return 8;
 848                 }
 849
 850                 // 9f36 Application Transaction Counter (ATC)
 851                 const struct tlv *atc_tlv = tlvdb_get(atc_db, 0x9f36, NULL);
 852                 if(atc_tlv) {
 853                         PrintAndLogEx(NORMAL, "\nATC (Application Transaction Counter) [%zu] %s", atc_tlv->len, sprint_hex_inrow(atc_tlv->value, atc_tlv->len));
 854
 855                         const struct tlv *core_atc_tlv = tlvdb_get(tlv, 0x9f36, NULL);
 856                         if(tlv_equal(core_atc_tlv, atc_tlv)) {
 857                                 PrintAndLogEx(SUCCESS, "ATC check OK.");
 858                                 PrintAndLogEx(SUCCESS, "fDDA (fast DDA) verified OK.");
 859                         } else {
 860                                 PrintAndLogEx(WARNING, "Error: fDDA verified, but ATC in the certificate and ATC in the record not the same.");
 861                         }
 862                 } else {
 863                         PrintAndLogEx(NORMAL, "\nERROR: fDDA (fast DDA) verify error");
 864                         emv_pk_free(pk);
 865                         emv_pk_free(issuer_pk);
 866                         emv_pk_free(icc_pk);
 867                         return 9;
 868                 }
 869         } else {
 870                 struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
 871                 if (dac_db) {
 872                         const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
 873                         PrintAndLogEx(NORMAL, "SDAD verified OK. (Data Authentication Code: %02hhx:%02hhx)\n", dac_tlv->value[0], dac_tlv->value[1]);
 874                         tlvdb_add(tlv, dac_db);
 875                 } else {
 876                         PrintAndLogEx(WARNING, "Error: SSAD verify error");
 877                         emv_pk_free(pk);
 878                         emv_pk_free(issuer_pk);
 879                         emv_pk_free(icc_pk);
 880                         return 4;
 881                 }
 882
 883                 PrintAndLogEx(NORMAL, "\n* Calc DDOL");
 884                 const struct tlv *ddol_tlv = tlvdb_get(tlv, 0x9f49, NULL);
 885                 if (!ddol_tlv) {
 886                         ddol_tlv = &default_ddol_tlv;
 887                         PrintAndLogEx(NORMAL, "DDOL [9f49] not found. Using default DDOL");
 888                 }
 889
 890                 struct tlv *ddol_data_tlv = dol_process(ddol_tlv, tlv, 0);
 891                 if (!ddol_data_tlv) {
 892                         PrintAndLogEx(WARNING, "Error: Can't create DDOL TLV");
 893                         emv_pk_free(pk);
 894                         emv_pk_free(issuer_pk);
 895                         emv_pk_free(icc_pk);
 896                         return 5;
 897                 }
 898
 899                 PrintAndLogEx(NORMAL, "DDOL data[%d]: %s", ddol_data_tlv->len, sprint_hex(ddol_data_tlv->value, ddol_data_tlv->len));
 900
 901                 PrintAndLogEx(NORMAL, "\n* Internal Authenticate");
 902                 int res = EMVInternalAuthenticate(channel, true, (uint8_t *)ddol_data_tlv->value, ddol_data_tlv->len, buf, sizeof(buf), &len, &sw, NULL);
 903                 if (res) {
 904                         PrintAndLogEx(WARNING, "Internal Authenticate error(%d): %4x. Exit...", res, sw);
 905                         free(ddol_data_tlv);
 906                         emv_pk_free(pk);
 907                         emv_pk_free(issuer_pk);
 908                         emv_pk_free(icc_pk);
 909                         return 6;
 910                 }
 911
 912                 struct tlvdb *dda_db = NULL;
 913                 if (buf[0] == 0x80) {
 914                         if (len < 3 ) {
 915                                 PrintAndLogEx(WARNING, "Error: Internal Authenticate format1 parsing error. length=%d", len);
 916                         } else {
 917                                 // parse response 0x80
 918                                 struct tlvdb *t80 = tlvdb_parse_multi(buf, len);
 919                                 const struct tlv * t80tlv = tlvdb_get_tlv(t80);
 920
 921                                 // 9f4b Signed Dynamic Application Data
 922                                 dda_db = tlvdb_fixed(0x9f4b, t80tlv->len, t80tlv->value);
 923                                 tlvdb_add(tlv, dda_db);
 924
 925                                 tlvdb_free(t80);
 926
 927                                 if (decodeTLV){
 928                                         PrintAndLogEx(NORMAL, "* * Decode response format 1:");
 929                                         TLVPrintFromTLV(dda_db);
 930                                 }
 931                         }
 932                 } else {
 933                         dda_db = tlvdb_parse_multi(buf, len);
 934                         if(!dda_db) {
 935                                 PrintAndLogEx(WARNING, "Error: Can't parse Internal Authenticate result as TLV");
 936                                 free(ddol_data_tlv);
 937                                 emv_pk_free(pk);
 938                                 emv_pk_free(issuer_pk);
 939                                 emv_pk_free(icc_pk);
 940                                 return 7;
 941                         }
 942                         tlvdb_add(tlv, dda_db);
 943
 944                         if (decodeTLV)
 945                                 TLVPrintFromTLV(dda_db);
 946                 }
 947
 948                 struct tlvdb *idn_db = emv_pki_recover_idn_ex(icc_pk, dda_db, ddol_data_tlv, true);
 949                 free(ddol_data_tlv);
 950                 if (!idn_db) {
 951                         PrintAndLogEx(WARNING, "Error: Can't recover IDN (ICC Dynamic Number)");
 952                         tlvdb_free(dda_db);
 953                         emv_pk_free(pk);
 954                         emv_pk_free(issuer_pk);
 955                         emv_pk_free(icc_pk);
 956                         return 8;
 957                 }
 958                 tlvdb_free(dda_db);
 959
 960                 // 9f4c ICC Dynamic Number
 961                 const struct tlv *idn_tlv = tlvdb_get(idn_db, 0x9f4c, NULL);
 962                 if(idn_tlv) {
 963                         PrintAndLogEx(NORMAL, "\nIDN (ICC Dynamic Number) [%zu] %s", idn_tlv->len, sprint_hex_inrow(idn_tlv->value, idn_tlv->len));
 964                         PrintAndLogEx(NORMAL, "DDA verified OK.");
 965                         tlvdb_add(tlv, idn_db);
 966                         tlvdb_free(idn_db);
 967                 } else {
 968                         PrintAndLogEx(NORMAL, "\nERROR: DDA verify error");
 969                         tlvdb_free(idn_db);
 970
 971                         emv_pk_free(pk);
 972                         emv_pk_free(issuer_pk);
 973                         emv_pk_free(icc_pk);
 974                         return 9;
 975                 }
 976         }
 977
 978         emv_pk_free(pk);
 979         emv_pk_free(issuer_pk);
 980         emv_pk_free(icc_pk);
 981         return 0;
 982 }
 983
 984 int trCDA(struct tlvdb *tlv, struct tlvdb *ac_tlv, struct tlv *pdol_data_tlv, struct tlv *ac_data_tlv) {
 985
 986         struct emv_pk *pk = get_ca_pk(tlv);
 987         if (!pk) {
 988                 PrintAndLogEx(WARNING, "Error: Key not found. Exit.");
 989                 return 2;
 990         }
 991
 992         const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
 993         if (!sda_tlv || sda_tlv->len < 1) {
 994                 PrintAndLogEx(WARNING, "Error: Can't find input list for Offline Data Authentication. Exit.");
 995                 emv_pk_free(pk);
 996                 return 3;
 997         }
 998
 999         struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
1000         if (!issuer_pk) {
1001                 PrintAndLogEx(WARNING, "Error: Issuer certificate not found. Exit.");
1002                 emv_pk_free(pk);
1003                 return 2;
1004         }
1005         PrintAndLogEx(SUCCESS, "Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
1006                         issuer_pk->rid[0],
1007                         issuer_pk->rid[1],
1008                         issuer_pk->rid[2],
1009                         issuer_pk->rid[3],
1010                         issuer_pk->rid[4],
1011                         issuer_pk->index,
1012                         issuer_pk->serial[0],
1013                         issuer_pk->serial[1],
1014                         issuer_pk->serial[2]
1015                         );
1016
1017         struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlv, sda_tlv);
1018         if (!icc_pk) {
1019                 PrintAndLogEx(WARNING, "Error: ICC setrificate not found. Exit.");
1020                 emv_pk_free(pk);
1021                 emv_pk_free(issuer_pk);
1022                 return 2;
1023         }
1024         PrintAndLogEx(SUCCESS, "ICC PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
1025                         icc_pk->rid[0],
1026                         icc_pk->rid[1],
1027                         icc_pk->rid[2],
1028                         icc_pk->rid[3],
1029                         icc_pk->rid[4],
1030                         icc_pk->index,
1031                         icc_pk->serial[0],
1032                         icc_pk->serial[1],
1033                         icc_pk->serial[2]
1034                         );
1035
1036         struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
1037         if (dac_db) {
1038                 const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
1039                 PrintAndLogEx(NORMAL, "SSAD verified OK. (%02hhx:%02hhx)", dac_tlv->value[0], dac_tlv->value[1]);
1040                 tlvdb_add(tlv, dac_db);
1041         } else {
1042                 PrintAndLogEx(WARNING, "Error: SSAD verify error");
1043                 emv_pk_free(pk);
1044                 emv_pk_free(issuer_pk);
1045                 emv_pk_free(icc_pk);
1046                 return 4;
1047         }
1048
1049         PrintAndLogEx(NORMAL, "\n* * Check Signed Dynamic Application Data (SDAD)");
1050         struct tlvdb *idn_db = emv_pki_perform_cda_ex(icc_pk, tlv, ac_tlv,
1051                         pdol_data_tlv, // pdol
1052                         ac_data_tlv,   // cdol1
1053                         NULL,          // cdol2
1054                         true);
1055         if (idn_db) {
1056                 const struct tlv *idn_tlv = tlvdb_get(idn_db, 0x9f4c, NULL);
1057                 PrintAndLogEx(NORMAL, "\nIDN (ICC Dynamic Number) [%zu] %s", idn_tlv->len, sprint_hex_inrow(idn_tlv->value, idn_tlv->len));
1058                 PrintAndLogEx(NORMAL, "CDA verified OK.");
1059                 tlvdb_add(tlv, idn_db);
1060         } else {
1061                 PrintAndLogEx(NORMAL, "\nERROR: CDA verify error");
1062         }
1063
1064         emv_pk_free(pk);
1065         emv_pk_free(issuer_pk);
1066         emv_pk_free(icc_pk);
1067         return 0;
1068 }
1069
1070 int RecoveryCertificates(struct tlvdb *tlvRoot, json_t *root) {
1071
1072         struct emv_pk *pk = get_ca_pk(tlvRoot);
1073         if (!pk) {
1074                 PrintAndLog("ERROR: Key not found. Exit.");
1075                 return 1;
1076         }
1077
1078         struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlvRoot);
1079         if (!issuer_pk) {
1080                 emv_pk_free(pk);
1081                 PrintAndLog("WARNING: Issuer certificate not found. Exit.");
1082                 return 2;
1083         }
1084         PrintAndLogEx(SUCCESS, "Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx",
1085                         issuer_pk->rid[0],
1086                         issuer_pk->rid[1],
1087                         issuer_pk->rid[2],
1088                         issuer_pk->rid[3],
1089                         issuer_pk->rid[4],
1090                         issuer_pk->index,
1091                         issuer_pk->serial[0],
1092                         issuer_pk->serial[1],
1093                         issuer_pk->serial[2]
1094                         );
1095
1096         JsonSaveBufAsHex(root, "$.ApplicationData.RID", issuer_pk->rid, 5);
1097
1098         char *issuer_pk_c = emv_pk_dump_pk(issuer_pk);
1099         JsonSaveStr(root, "$.ApplicationData.IssuerPublicKeyDec", issuer_pk_c);
1100         JsonSaveBufAsHex(root, "$.ApplicationData.IssuerPublicKeyModulus", issuer_pk->modulus, issuer_pk->mlen);
1101         free(issuer_pk_c);
1102
1103         struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlvRoot, NULL);
1104         if (!icc_pk) {
1105                 emv_pk_free(pk);
1106                 emv_pk_free(issuer_pk);
1107                 PrintAndLogEx(WARNING, "WARNING: ICC certificate not found. Exit.");
1108                 return 2;
1109         }
1110         PrintAndLogEx(SUCCESS, "ICC PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
1111                         icc_pk->rid[0],
1112                         icc_pk->rid[1],
1113                         icc_pk->rid[2],
1114                         icc_pk->rid[3],
1115                         icc_pk->rid[4],
1116                         icc_pk->index,
1117                         icc_pk->serial[0],
1118                         icc_pk->serial[1],
1119                         icc_pk->serial[2]
1120                         );
1121
1122         char *icc_pk_c = emv_pk_dump_pk(icc_pk);
1123         JsonSaveStr(root, "$.ApplicationData.ICCPublicKeyDec", icc_pk_c);
1124         JsonSaveBufAsHex(root, "$.ApplicationData.ICCPublicKeyModulus", icc_pk->modulus, icc_pk->mlen);
1125         free(issuer_pk_c);
1126
1127         return 0;
1128 }