client/src/emv/emvcore.c

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // See LICENSE.txt for the text of the license.
  15 //-----------------------------------------------------------------------------
  16 // EMV core functions
  17 //-----------------------------------------------------------------------------
  18
  19 #include "emvcore.h"
  20 #include <string.h>
  21 #include "commonutil.h"     // ARRAYLEN
  22 #include "comms.h"          // DropField
  23 #include "cmdparser.h"
  24 #include "cmdsmartcard.h"   // ExchangeAPDUSC
  25 #include "ui.h"
  26 #include "cmdhf14a.h"
  27 #include "cmdhf14b.h"
  28 #include "dol.h"
  29 #include "emv_tags.h"
  30 #include "emvjson.h"
  31 #include "util_posix.h"
  32 #include "protocols.h"      // ISO7816 APDU return codes
  33
  34 // Got from here. Thanks!
  35 // https://eftlab.co.uk/index.php/site-map/knowledge-base/211-emv-aid-rid-pix
  36 static const char *PSElist [] = {
  37     "325041592E5359532E4444463031", // 2PAY.SYS.DDF01 - Visa Proximity Payment System Environment - PPSE
  38     "315041592E5359532E4444463031"  // 1PAY.SYS.DDF01 - Visa Payment System Environment - PSE
  39 };
  40
  41 const char *TransactionTypeStr[] = {
  42     "MSD",
  43     "VSDC",
  44     "qVCDCMCHIP",
  45     "CDA"
  46 };
  47
  48 typedef struct {
  49     enum CardPSVendor vendor;
  50     const char *aid;
  51 } AIDList_t;
  52
  53 static const AIDList_t AIDlist [] = {
  54     // Visa International
  55     { CV_VISA, "A00000000305076010" },           // VISA ELO Credit
  56     { CV_VISA, "A0000000031010" },               // VISA Debit/Credit (Classic)
  57     { CV_VISA, "A000000003101001" },             // VISA Credit
  58     { CV_VISA, "A000000003101002" },             // VISA Debit
  59     { CV_VISA, "A0000000032010" },               // VISA Electron
  60     { CV_VISA, "A0000000032020" },               // VISA
  61     { CV_VISA, "A0000000033010" },               // VISA Interlink
  62     { CV_VISA, "A0000000034010" },               // VISA Specific
  63     { CV_VISA, "A0000000035010" },               // VISA Specific
  64     { CV_VISA, "A0000000036010" },               // Domestic Visa Cash Stored Value
  65     { CV_VISA, "A0000000036020" },               // International Visa Cash Stored Value
  66     { CV_VISA, "A0000000038002" },               // VISA Auth, VisaRemAuthen EMV-CAP (DPA)
  67     { CV_VISA, "A0000000038010" },               // VISA Plus
  68     { CV_VISA, "A0000000039010" },               // VISA Loyalty
  69     { CV_VISA, "A000000003999910" },             // VISA Proprietary ATM
  70     // Visa USA
  71     { CV_VISA, "A000000098" },                   // Debit Card
  72     { CV_VISA, "A0000000980848" },               // Debit Card
  73     // Mastercard International
  74     { CV_MASTERCARD, "A00000000401" },           // MasterCard PayPass
  75     { CV_MASTERCARD, "A0000000041010" },         // MasterCard Credit
  76     { CV_MASTERCARD, "A00000000410101213" },     // MasterCard Credit
  77     { CV_MASTERCARD, "A00000000410101215" },     // MasterCard Credit
  78     { CV_MASTERCARD, "A0000000042010" },         // MasterCard Specific
  79     { CV_MASTERCARD, "A0000000043010" },         // MasterCard Specific
  80     { CV_MASTERCARD, "A0000000043060" },         // Maestro (Debit)
  81     { CV_MASTERCARD, "A000000004306001" },       // Maestro (Debit)
  82     { CV_MASTERCARD, "A0000000044010" },         // MasterCard Specific
  83     { CV_MASTERCARD, "A0000000045010" },         // MasterCard Specific
  84     { CV_MASTERCARD, "A0000000046000" },         // Cirrus
  85     { CV_MASTERCARD, "A0000000048002" },         // SecureCode Auth EMV-CAP
  86     { CV_MASTERCARD, "A0000000049999" },         // MasterCard PayPass
  87     { CV_MASTERCARD, "B012345678" },             // Maestro TEST Used for development
  88     // American Express
  89     { CV_AMERICANEXPRESS, "A000000025" },
  90     { CV_AMERICANEXPRESS, "A0000000250000" },
  91     { CV_AMERICANEXPRESS, "A00000002501" },
  92     { CV_AMERICANEXPRESS, "A000000025010402" },
  93     { CV_AMERICANEXPRESS, "A000000025010701" },
  94     { CV_AMERICANEXPRESS, "A000000025010801" },
  95     // Groupement des Cartes Bancaires "CB"
  96     { CV_CB, "A0000000421010" },                 // Cartes Bancaire EMV Card
  97     { CV_CB, "A0000000422010" },
  98     { CV_CB, "A0000000423010" },
  99     { CV_CB, "A0000000424010" },
 100     { CV_CB, "A0000000425010" },
 101     // JCB CO., LTD.
 102     { CV_JCB, "A00000006510" },                  // JCB
 103     { CV_JCB, "A0000000651010" },                // JCB J Smart Credit
 104     // Switch Card Services Ltd.
 105     { CV_SWITCH, "A0000000050001" },             // Maestro UK
 106     { CV_SWITCH, "A0000000050002" },             // Solo
 107     // Diners Club International Ltd.
 108     { CV_DINERS, "A0000001523010" },             // Discover, Pulse D Pas Discover Card
 109     { CV_DINERS, "A0000001524010" },             // Discover, Discover Debit Common Card
 110     // Other
 111     { CV_OTHER, "A00000002401" },                // Midland Bank Plc - Self Service
 112     { CV_OTHER, "A0000000291010" },              // LINK Interchange Network Ltd - Link / American Express
 113     { CV_OTHER, "A00000006900" },                // Société Européenne de Monnaie Electronique SEME - Moneo
 114     { CV_OTHER, "A000000077010000021000000000003B" },  // Oberthur Technologies France - Visa AEPN
 115     { CV_OTHER, "A0000001211010" },              // PBS Danmark A/S - Denmark - Dankort (VISA GEM Vision) - Danish domestic debit card
 116     { CV_OTHER, "A0000001410001" },              // Associazione Bancaria Italiana - Italy - PagoBANCOMAT - CoGeBan Consorzio BANCOMAT (Italian domestic debit card)
 117     { CV_OTHER, "A0000001544442" },              // Banricompras Debito - Banrisul - Banco do Estado do Rio Grande do SUL - S.A.
 118     { CV_OTHER, "A000000172950001" },            // Financial Information Service Co. Ltd. - Taiwan - BAROC Financial Application Taiwan- The Bankers Association of the Republic of China
 119     { CV_OTHER, "A0000001850002" },              // Post Office Limited - United Kingdom - UK Post Office Account card
 120     { 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)
 121     { 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)
 122     { CV_OTHER, "A0000002771010" },              // Interac Association - Canada - INTERAC - Canadian domestic credit/debit card
 123     { CV_OTHER, "A00000031510100528" },          // Currence Holding/PIN BV - The Netherlands- Currence PuC
 124     { CV_OTHER, "A0000003156020" },              // Currence Holding/PIN BV - The Netherlands - Chipknip
 125     { CV_OTHER, "A0000003591010028001" },        // Euro Alliance of Payment Schemes s.c.r.l. (EAPS) - Belgium - Girocard EAPS - ZKA (Germany)
 126     { CV_OTHER, "A0000003710001" },              // Verve - Nigeria - InterSwitch Verve Card - Nigerian local switch company
 127     { CV_OTHER, "A0000004540010" },              // eTranzact - Nigeria - Etranzact Genesis Card - Nigerian local switch company
 128     { CV_OTHER, "A0000004540011" },              // eTranzact - Nigeria - Etranzact Genesis Card 2 - Nigerian local switch company
 129     { CV_OTHER, "A0000004766C" },                // Google - United States - GOOGLE_PAYMENT_AID
 130     { CV_OTHER, "A0000005241010" },              // RuPay - India - RuPay - RuPay (India)
 131     { CV_OTHER, "A0000006723010" },              // TROY - Turkey - TROY chip credit card - Turkey's Payment Method
 132     { CV_OTHER, "A0000006723020" },              // TROY - Turkey - TROY chip debit card - Turkey's Payment Method
 133     { CV_OTHER, "A0000007705850" },              // Indian Oil Corporation Limited - India - XTRAPOWER Fleet Card Program - Indian Oil’s Pre Paid Program
 134     { CV_OTHER, "D27600002545500100" },          // ZKA - Germany - Girocard - ZKA Girocard (Geldkarte) (Germany)
 135     { CV_OTHER, "D4100000030001" },              // KS X 6923/6924 (T-Money, South Korea and Snapper+, Wellington, New Zealand)
 136     { CV_OTHER, "D5280050218002" },              // The Netherlands - ? - (Netherlands)
 137     { CV_OTHER, "D5780000021010" },              // Bankaxept    Norway  Bankaxept   Norwegian domestic debit card
 138     { CV_OTHER, "F0000000030001" },              // BRADESCO - Brazilian Bank Banco Bradesco
 139     { CV_OTHER, "A0000008381010" },              // SL Resekort - Swedish domestic transportation card with payment
 140 };
 141
 142 enum CardPSVendor GetCardPSVendor(uint8_t *AID, size_t AIDlen) {
 143     char buf[100] = {0};
 144     if (AIDlen < 1)
 145         return CV_NA;
 146
 147     hex_to_buffer((uint8_t *)buf, AID, AIDlen, sizeof(buf) - 1, 0, 0, true);
 148
 149     for (int i = 0; i < ARRAYLEN(AIDlist); i ++) {
 150         if (strncmp(AIDlist[i].aid, buf, strlen(AIDlist[i].aid)) == 0) {
 151             return AIDlist[i].vendor;
 152         }
 153     }
 154
 155     return CV_NA;
 156 }
 157
 158 static void emv_print_cb(void *data, const struct tlv *tlv, int level, bool is_leaf) {
 159     emv_tag_dump(tlv, level);
 160     if (is_leaf) {
 161         print_buffer(tlv->value, tlv->len, level);
 162     }
 163 }
 164
 165 bool TLVPrintFromBuffer(uint8_t *data, int datalen) {
 166     struct tlvdb *t = tlvdb_parse_multi(data, datalen);
 167     if (t) {
 168         PrintAndLogEx(INFO, "-------------------- " _CYAN_("TLV decoded") " --------------------");
 169
 170         tlvdb_visit(t, emv_print_cb, NULL, 0);
 171         tlvdb_free(t);
 172         return true;
 173     } else {
 174         PrintAndLogEx(WARNING, "TLV ERROR: Can't parse response as TLV tree.");
 175     }
 176     return false;
 177 }
 178
 179 void TLVPrintFromTLVLev(struct tlvdb *tlv, int level) {
 180     if (tlv == NULL)
 181         return;
 182
 183     tlvdb_visit(tlv, emv_print_cb, NULL, level);
 184 }
 185
 186 void TLVPrintFromTLV(struct tlvdb *tlv) {
 187     TLVPrintFromTLVLev(tlv, 0);
 188 }
 189
 190 void TLVPrintAIDlistFromSelectTLV(struct tlvdb *tlv) {
 191     PrintAndLogEx(INFO, "|------------------+--------+-------------------------|");
 192     PrintAndLogEx(INFO, "|    AID           |Priority| Name                    |");
 193     PrintAndLogEx(INFO, "|------------------+--------+-------------------------|");
 194
 195     struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f);
 196     if (ttmp == NULL)
 197         PrintAndLogEx(INFO, "|                         none                        |");
 198
 199     while (ttmp) {
 200         const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x84, NULL);
 201         const struct tlv *tgName = tlvdb_get_inchild(ttmp, 0x50, NULL);
 202         const struct tlv *tgPrio = tlvdb_get_inchild(ttmp, 0x87, NULL);
 203         if (!tgAID) {
 204             break;
 205         }
 206         PrintAndLogEx(INFO, "| %s|   %s  | %s|",
 207                       sprint_hex_inrow_ex(tgAID->value, tgAID->len, 16),
 208                       (tgPrio) ? sprint_hex(tgPrio->value, 1) : "   ",
 209                       (tgName) ? sprint_ascii_ex(tgName->value, tgName->len, 24) : "                        ");
 210
 211         ttmp = tlvdb_find_next(ttmp, 0x6f);
 212     }
 213
 214     PrintAndLogEx(INFO, "|------------------+--------+-------------------------|");
 215 }
 216
 217 struct tlvdb *GetPANFromTrack2(const struct tlv *track2) {
 218     char track2Hex[200] = {0};
 219     uint8_t PAN[100] = {0};
 220     int PANlen = 0;
 221     char *tmp = track2Hex;
 222
 223     if (!track2)
 224         return NULL;
 225
 226     for (int i = 0; i < track2->len; ++i, tmp += 2)
 227         snprintf(tmp, sizeof(track2Hex) - (tmp - track2Hex), "%02x", (unsigned int)track2->value[i]);
 228
 229     int posD = strchr(track2Hex, 'd') - track2Hex;
 230     if (posD < 1)
 231         return NULL;
 232
 233     track2Hex[posD] = 0;
 234     if (strlen(track2Hex) % 2) {
 235         track2Hex[posD] = 'F';
 236         track2Hex[posD + 1] = '\0';
 237     }
 238
 239     param_gethex_to_eol(track2Hex, 0, PAN, sizeof(PAN), &PANlen);
 240
 241     return tlvdb_fixed(0x5a, PANlen, PAN);
 242 }
 243
 244 struct tlvdb *GetdCVVRawFromTrack2(const struct tlv *track2) {
 245     char track2Hex[200] = {0};
 246     char dCVVHex[100] = {0};
 247     uint8_t dCVV[100] = {0};
 248     int dCVVlen = 0;
 249     const int PINlen = 5; // must calculated from 9F67 MSD Offset but i have not seen this tag)
 250     char *tmp = track2Hex;
 251
 252     if (!track2)
 253         return NULL;
 254
 255     for (int i = 0; i < track2->len; ++i, tmp += 2)
 256         snprintf(tmp, sizeof(track2Hex) - (tmp - track2Hex), "%02x", (unsigned int)track2->value[i]);
 257
 258     int posD = strchr(track2Hex, 'd') - track2Hex;
 259     if (posD < 1)
 260         return NULL;
 261
 262     memset(dCVVHex, '0', 32);
 263     // ATC
 264     memcpy(dCVVHex + 0, track2Hex + posD + PINlen + 11, 4);
 265     // PAN 5 hex
 266     memcpy(dCVVHex + 4, track2Hex, 5);
 267     // expire date
 268     memcpy(dCVVHex + 9, track2Hex + posD + 1, 4);
 269     // service code
 270     memcpy(dCVVHex + 13, track2Hex + posD + 5, 3);
 271
 272     param_gethex_to_eol(dCVVHex, 0, dCVV, sizeof(dCVV), &dCVVlen);
 273
 274     return tlvdb_fixed(0x02, dCVVlen, dCVV);
 275 }
 276
 277 static int EMVExchangeEx(Iso7816CommandChannel channel, bool ActivateField, bool LeaveFieldON, sAPDU_t apdu, bool IncludeLe, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
 278     int res = Iso7816ExchangeEx(channel, ActivateField, LeaveFieldON, apdu, IncludeLe, 0, Result, MaxResultLen, ResultLen, sw);
 279     // add to tlv tree
 280     if ((res == PM3_SUCCESS) && tlv) {
 281         struct tlvdb *t = tlvdb_parse_multi(Result, *ResultLen);
 282         tlvdb_add(tlv, t);
 283     }
 284     return res;
 285 }
 286
 287 int EMVExchange(Iso7816CommandChannel channel, bool LeaveFieldON, sAPDU_t apdu, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
 288     int res = Iso7816Exchange(channel, LeaveFieldON, apdu, Result, MaxResultLen, ResultLen, sw);
 289     // add to tlv tree
 290     if ((res == PM3_SUCCESS) && tlv) {
 291         struct tlvdb *t = tlvdb_parse_multi(Result, *ResultLen);
 292         tlvdb_add(tlv, t);
 293     }
 294     return res;
 295 }
 296
 297 int EMVSelect(Iso7816CommandChannel 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) {
 298     int res = Iso7816Select(channel, ActivateField, LeaveFieldON, AID, AIDLen, Result, MaxResultLen, ResultLen, sw);
 299     // add to tlv tree
 300     if ((res == PM3_SUCCESS) && tlv) {
 301         struct tlvdb *t = tlvdb_parse_multi(Result, *ResultLen);
 302         tlvdb_add(tlv, t);
 303     }
 304     return res;
 305 }
 306
 307 int EMVSelectPSE(Iso7816CommandChannel channel, bool ActivateField, bool LeaveFieldON, uint8_t PSENum, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw) {
 308     uint8_t buf[APDU_AID_LEN] = {0};
 309     *ResultLen = 0;
 310     int len = 0;
 311     switch (PSENum) {
 312         case 1:
 313             param_gethex_to_eol(PSElist[1], 0, buf, sizeof(buf), &len);
 314             break;
 315         case 2:
 316             param_gethex_to_eol(PSElist[0], 0, buf, sizeof(buf), &len);
 317             break;
 318         default:
 319             return -1;
 320     }
 321     return EMVSelect(channel, ActivateField, LeaveFieldON, buf, len, Result, MaxResultLen, ResultLen, sw, NULL);
 322 }
 323
 324 static int EMVSelectWithRetry(Iso7816CommandChannel 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) {
 325     int retrycnt = 0;
 326     int res = 0;
 327     do {
 328         res = EMVSelect(channel, false, true, AID, AIDLen, Result, MaxResultLen, ResultLen, sw, tlv);
 329
 330         // retry if error and not returned sw error
 331         if (res && res != 5) {
 332             if (++retrycnt < 3) {
 333                 continue;
 334             } else {
 335                 // card select error, proxmark error
 336                 if (res == 1) {
 337                     PrintAndLogEx(WARNING, "exiting...");
 338                     return 1;
 339                 }
 340
 341                 PrintAndLogEx(FAILED, "Retry failed [%s]. Skipped...", sprint_hex_inrow(AID, AIDLen));
 342                 return res;
 343             }
 344         }
 345     } while (res && res != 5);
 346
 347     return res;
 348 }
 349
 350 static int EMVCheckAID(Iso7816CommandChannel channel, bool decodeTLV, struct tlvdb *tlvdbelm, struct tlvdb *tlv) {
 351     uint8_t data[APDU_RES_LEN] = {0};
 352     size_t datalen = 0;
 353     int res = 0;
 354     uint16_t sw = 0;
 355
 356     while (tlvdbelm) {
 357         const struct tlv *tgAID = tlvdb_get_inchild(tlvdbelm, 0x4f, NULL);
 358         if (tgAID) {
 359             res = EMVSelectWithRetry(channel, false, true, (uint8_t *)tgAID->value, tgAID->len, data, sizeof(data), &datalen, &sw, tlv);
 360
 361             // if returned sw error
 362             if (res == 5) {
 363                 // next element
 364                 tlvdbelm = tlvdb_find_next(tlvdbelm, 0x61);
 365                 continue;
 366             }
 367
 368             if (res)
 369                 break;
 370
 371             // all is ok
 372             if (decodeTLV) {
 373                 PrintAndLogEx(SUCCESS, "%s:", sprint_hex_inrow(tgAID->value, tgAID->len));
 374                 TLVPrintFromBuffer(data, datalen);
 375             }
 376         }
 377         tlvdbelm = tlvdb_find_next(tlvdbelm, 0x61);
 378     }
 379     return res;
 380 }
 381
 382 int EMVSearchPSE(Iso7816CommandChannel channel, bool ActivateField, bool LeaveFieldON, uint8_t PSENum, bool decodeTLV, struct tlvdb *tlv) {
 383     uint8_t data[APDU_RES_LEN] = {0};
 384     size_t datalen = 0;
 385     uint16_t sw = 0;
 386     int res;
 387     const char *PSE_or_PPSE = PSENum == 1 ? "PSE" : "PPSE";
 388
 389     // select PPSE
 390     res = EMVSelectPSE(channel, ActivateField, true, PSENum, data, sizeof(data), &datalen, &sw);
 391
 392     if (!res) {
 393         if (sw != ISO7816_OK) {
 394             PrintAndLogEx(FAILED, "Select PSE error. APDU error: %04x.", sw);
 395             return 1;
 396         }
 397
 398         struct tlvdb *t = tlvdb_parse_multi(data, datalen);
 399         if (t) {
 400             bool fileFound = false;
 401             // PSE/PPSE with SFI
 402             struct tlvdb *tsfi = tlvdb_find_path(t, (tlv_tag_t[]) {0x6f, 0xa5, 0x88, 0x00});
 403             if (tsfi) {
 404                 uint8_t sfidata[0x11][APDU_RES_LEN];
 405                 size_t sfidatalen[0x11] = {0};
 406                 uint8_t sfin = 0;
 407                 tlv_get_uint8(tlvdb_get_tlv(tsfi), &sfin);
 408                 PrintAndLogEx(INFO, "* PPSE get SFI: 0x%02x.", sfin);
 409
 410                 for (uint8_t ui = 0x01; ui <= 0x10; ui++) {
 411                     PrintAndLogEx(INFO, "* * Get SFI: 0x%02x. num: 0x%02x", sfin, ui);
 412                     res = EMVReadRecord(channel, true, sfin, ui, sfidata[ui], APDU_RES_LEN, &sfidatalen[ui], &sw, NULL);
 413
 414                     // end of records
 415                     if (sw == 0x6a83) {
 416                         sfidatalen[ui] = 0;
 417                         PrintAndLogEx(INFO, "* * PPSE get SFI. End of records.");
 418                         break;
 419                     }
 420
 421                     // error catch!
 422                     if (sw != ISO7816_OK) {
 423                         sfidatalen[ui] = 0;
 424                         PrintAndLogEx(FAILED, "PPSE get Error. APDU error: %04x.", sw);
 425                         break;
 426                     }
 427
 428                     if (decodeTLV) {
 429                         TLVPrintFromBuffer(sfidata[ui], sfidatalen[ui]);
 430                     }
 431                 }
 432
 433                 for (uint8_t ui = 0x01; ui <= 0x10; ui++) {
 434                     if (sfidatalen[ui]) {
 435
 436                         struct tlvdb *tsfi_a = tlvdb_parse_multi(sfidata[ui], sfidatalen[ui]);
 437                         if (tsfi_a) {
 438                             struct tlvdb *tsfitmp = tlvdb_find_path(tsfi_a, (tlv_tag_t[]) {0x70, 0x61, 0x00});
 439                             if (!tsfitmp) {
 440                                 PrintAndLogEx(FAILED, "SFI 0x%02zu doesn't have any records.", sfidatalen[ui]);
 441                                 continue;
 442                             }
 443                             res = EMVCheckAID(channel, decodeTLV, tsfitmp, tlv);
 444                             fileFound = true;
 445                         }
 446                         tlvdb_free(tsfi_a);
 447                     }
 448                 }
 449             }
 450
 451
 452             // PSE/PPSE plain (wo SFI)
 453             struct tlvdb *ttmp = tlvdb_find_path(t, (tlv_tag_t[]) {0x6f, 0xa5, 0xbf0c, 0x61, 0x00});
 454             if (ttmp) {
 455                 res = EMVCheckAID(channel, decodeTLV, ttmp, tlv);
 456                 fileFound = true;
 457             }
 458
 459             if (!fileFound)
 460                 PrintAndLogEx(FAILED, "PPSE doesn't have any records.");
 461
 462             tlvdb_free(t);
 463         } else {
 464             PrintAndLogEx(WARNING, "%s ERROR: Can't get TLV from response.", PSE_or_PPSE);
 465         }
 466     } else {
 467         PrintAndLogEx(ERR, "%s ERROR: Can't select PPSE AID. Error: %d", PSE_or_PPSE, res);
 468     }
 469
 470     if (!LeaveFieldON)
 471         DropFieldEx(channel);
 472
 473     return res;
 474 }
 475
 476 int EMVSearch(Iso7816CommandChannel channel, bool ActivateField, bool LeaveFieldON, bool decodeTLV, struct tlvdb *tlv, bool verbose) {
 477     uint8_t aidbuf[APDU_AID_LEN] = {0};
 478     int aidlen = 0;
 479     uint8_t data[APDU_RES_LEN] = {0};
 480     size_t datalen = 0;
 481     uint16_t sw = 0;
 482
 483     int retrycnt = 0;
 484     for (int i = 0; i < ARRAYLEN(AIDlist); i ++) {
 485
 486         if (kbd_enter_pressed()) {
 487             PrintAndLogEx(INFO, "user aborted...");
 488             break;
 489         }
 490
 491         param_gethex_to_eol(AIDlist[i].aid, 0, aidbuf, sizeof(aidbuf), &aidlen);
 492         int res = EMVSelect(channel, (i == 0) ? ActivateField : false, true, aidbuf, aidlen, data, sizeof(data), &datalen, &sw, tlv);
 493         // retry if error and not returned sw error
 494         if (res && res != 5) {
 495             if (++retrycnt < 3) {
 496                 i--;
 497             } else {
 498                 // (1) - card select error, (4) reply timeout, (200) - result length = 0
 499                 if (res == 1 || res == 4 || res == 200) {
 500                     if (LeaveFieldON == false)
 501                         DropFieldEx(channel);
 502
 503                     if (verbose) {
 504                         PrintAndLogEx(WARNING, "exiting...");
 505                     }
 506                     return 1;
 507                 }
 508
 509                 retrycnt = 0;
 510                 if (verbose) {
 511                     PrintAndLogEx(FAILED, "Retry failed [%s]. Skipped...", AIDlist[i].aid);
 512                 }
 513             }
 514             continue;
 515         }
 516         retrycnt = 0;
 517
 518         if (res)
 519             continue;
 520
 521         if (!datalen)
 522             continue;
 523
 524         if (decodeTLV) {
 525             PrintAndLogEx(SUCCESS, "%s", AIDlist[i].aid);
 526             TLVPrintFromBuffer(data, datalen);
 527         }
 528     }
 529
 530     if (LeaveFieldON == false) {
 531         DropFieldEx(channel);
 532     }
 533
 534     return 0;
 535 }
 536
 537 int EMVSelectApplication(struct tlvdb *tlv, uint8_t *AID, size_t *AIDlen) {
 538     // check priority. 0x00 - highest
 539     int prio = 0xffff;
 540
 541     *AIDlen = 0;
 542
 543     struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f);
 544     if (!ttmp)
 545         return 1;
 546
 547     while (ttmp) {
 548         const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x84, NULL);
 549         const struct tlv *tgPrio = tlvdb_get_inchild(ttmp, 0x87, NULL);
 550
 551         if (!tgAID)
 552             break;
 553
 554         if (tgPrio) {
 555             int pt = bytes_to_num((uint8_t *)tgPrio->value, (tgPrio->len < 2) ? tgPrio->len : 2);
 556             if (pt < prio) {
 557                 prio = pt;
 558
 559                 memcpy(AID, tgAID->value, tgAID->len);
 560                 *AIDlen = tgAID->len;
 561             }
 562         } else {
 563             // takes the first application from list wo priority
 564             if (!*AIDlen) {
 565                 memcpy(AID, tgAID->value, tgAID->len);
 566                 *AIDlen = tgAID->len;
 567             }
 568         }
 569
 570         ttmp = tlvdb_find_next(ttmp, 0x6f);
 571     }
 572
 573     return 0;
 574 }
 575
 576 int EMVGPO(Iso7816CommandChannel channel, bool LeaveFieldON, uint8_t *PDOL, size_t PDOLLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
 577     return EMVExchangeEx(channel, false, LeaveFieldON, (sAPDU_t) {0x80, 0xa8, 0x00, 0x00, PDOLLen, PDOL}, true, Result, MaxResultLen, ResultLen, sw, tlv);
 578 }
 579
 580 int EMVReadRecord(Iso7816CommandChannel channel, bool LeaveFieldON, uint8_t SFI, uint8_t SFIrec, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
 581     int res = EMVExchangeEx(channel, false, LeaveFieldON, (sAPDU_t) {0x00, 0xb2, SFIrec, (SFI << 3) | 0x04, 0, NULL}, true, Result, MaxResultLen, ResultLen, sw, tlv);
 582     if (*sw == 0x6700 || *sw == 0x6f00) {
 583         PrintAndLogEx(INFO, ">>> trying to reissue command without Le...");
 584         res = EMVExchangeEx(channel, false, LeaveFieldON, (sAPDU_t) {0x00, 0xb2, SFIrec, (SFI << 3) | 0x04, 0, NULL}, false, Result, MaxResultLen, ResultLen, sw, tlv);
 585     }
 586     return res;
 587 }
 588
 589 int EMVGetData(Iso7816CommandChannel channel, bool LeaveFieldON, uint16_t foo, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
 590     return EMVExchangeEx(channel, false, LeaveFieldON, (sAPDU_t) {0x80, 0xCA, ((foo >> 8) & 0xFF), (foo & 0xFF), 0, NULL}, true, Result, MaxResultLen, ResultLen, sw, tlv);
 591 }
 592
 593 int EMVAC(Iso7816CommandChannel 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) {
 594     return EMVExchange(channel, LeaveFieldON, (sAPDU_t) {0x80, 0xae, RefControl, 0x00, CDOLLen, CDOL}, Result, MaxResultLen, ResultLen, sw, tlv);
 595 }
 596
 597 int EMVGenerateChallenge(Iso7816CommandChannel channel, bool LeaveFieldON, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
 598     int res = EMVExchangeEx(channel, false, LeaveFieldON, (sAPDU_t) {0x00, 0x84, 0x00, 0x00, 0x00, NULL}, true, Result, MaxResultLen, ResultLen, sw, tlv);
 599     if (*sw == 0x6700 || *sw == 0x6f00) {
 600         PrintAndLogEx(INFO, ">>> trying to reissue command without Le...");
 601         res = EMVExchangeEx(channel, false, LeaveFieldON, (sAPDU_t) {0x00, 0x84, 0x00, 0x00, 0x00, NULL}, false, Result, MaxResultLen, ResultLen, sw, tlv);
 602     }
 603     return res;
 604 }
 605
 606 int EMVInternalAuthenticate(Iso7816CommandChannel channel, bool LeaveFieldON, uint8_t *DDOL, size_t DDOLLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
 607     return EMVExchangeEx(channel, false, LeaveFieldON, (sAPDU_t) {0x00, 0x88, 0x00, 0x00, DDOLLen, DDOL}, true, Result, MaxResultLen, ResultLen, sw, tlv);
 608 }
 609
 610 int MSCComputeCryptoChecksum(Iso7816CommandChannel channel, bool LeaveFieldON, uint8_t *UDOL, uint8_t UDOLlen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
 611     int res = EMVExchangeEx(channel, false, LeaveFieldON, (sAPDU_t) {0x80, 0x2a, 0x8e, 0x80, UDOLlen, UDOL}, true, Result, MaxResultLen, ResultLen, sw, tlv);
 612     if (*sw == 0x6700 || *sw == 0x6f00) {
 613         PrintAndLogEx(INFO, ">>> trying to reissue command without Le...");
 614         res = EMVExchangeEx(channel, false, LeaveFieldON, (sAPDU_t) {0x80, 0x2a, 0x8e, 0x80, UDOLlen, UDOL}, false, Result, MaxResultLen, ResultLen, sw, tlv);
 615     }
 616     return res;
 617 }
 618
 619 // Authentication
 620 struct emv_pk *get_ca_pk(struct tlvdb *db) {
 621     const struct tlv *df_tlv = tlvdb_get(db, 0x84, NULL);
 622     const struct tlv *caidx_tlv = tlvdb_get(db, 0x8f, NULL);
 623
 624     if (!df_tlv || !caidx_tlv || df_tlv->len < 6 || caidx_tlv->len != 1)
 625         return NULL;
 626
 627     PrintAndLogEx(INFO, "CA public key index 0x%0x", caidx_tlv->value[0]);
 628     return emv_pk_get_ca_pk(df_tlv->value, caidx_tlv->value[0]);
 629 }
 630
 631 int trSDA(struct tlvdb *tlv) {
 632
 633     struct emv_pk *pk = get_ca_pk(tlv);
 634     if (!pk) {
 635         PrintAndLogEx(ERR, "Error: Key not found, exiting");
 636         return 2;
 637     }
 638
 639     struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
 640     if (!issuer_pk) {
 641         emv_pk_free(pk);
 642         PrintAndLogEx(ERR, "Error: Issuer certificate not found, exiting");
 643         return 2;
 644     }
 645
 646     PrintAndLogEx(SUCCESS, "Issuer Public key recovered  RID " _YELLOW_("%s") " IDX " _YELLOW_("%02hhx") " CSN " _YELLOW_("%s"),
 647                   sprint_hex(issuer_pk->rid, 5),
 648                   issuer_pk->index,
 649                   sprint_hex(issuer_pk->serial, 3)
 650                  );
 651
 652     const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
 653     if (!sda_tlv || sda_tlv->len < 1) {
 654         emv_pk_free(issuer_pk);
 655         emv_pk_free(pk);
 656         PrintAndLogEx(WARNING, "Can't find input list for Offline Data Authentication, exiting");
 657         return 3;
 658     }
 659
 660     struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
 661     if (dac_db) {
 662         const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
 663         PrintAndLogEx(INFO, "SDA verified ( %s ) (Data Authentication Code: %02hhx:%02hhx)", _GREEN_("ok"), dac_tlv->value[0], dac_tlv->value[1]);
 664         tlvdb_add(tlv, dac_db);
 665     } else {
 666         emv_pk_free(issuer_pk);
 667         emv_pk_free(pk);
 668         PrintAndLogEx(ERR, "SSAD verify error");
 669         return 4;
 670     }
 671
 672     emv_pk_free(issuer_pk);
 673     emv_pk_free(pk);
 674     return 0;
 675 }
 676
 677 static const unsigned char default_ddol_value[] = {0x9f, 0x37, 0x04};
 678 static struct tlv default_ddol_tlv = {.tag = 0x9f49, .len = 3, .value = default_ddol_value };
 679
 680 int trDDA(Iso7816CommandChannel channel, bool decodeTLV, struct tlvdb *tlv) {
 681     struct emv_pk *pk = get_ca_pk(tlv);
 682     if (!pk) {
 683         PrintAndLogEx(ERR, "Error: Key not found, exiting");
 684         return 2;
 685     }
 686
 687     const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
 688     /* if (!sda_tlv || sda_tlv->len < 1) { it may be 0!!!!
 689             emv_pk_free(pk);
 690             PrintAndLogEx(ERR, "Error: Can't find input list for Offline Data Authentication, exiting");
 691             return 3;
 692         }
 693     */
 694     struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
 695     if (!issuer_pk) {
 696         emv_pk_free(pk);
 697         PrintAndLogEx(ERR, "Error: Issuer certificate not found, exiting");
 698         return 2;
 699     }
 700
 701     PrintAndLogEx(SUCCESS, "Issuer Public key recovered  RID " _YELLOW_("%s") " IDX " _YELLOW_("%02hhx") " CSN " _YELLOW_("%s"),
 702                   sprint_hex(issuer_pk->rid, 5),
 703                   issuer_pk->index,
 704                   sprint_hex(issuer_pk->serial, 3)
 705                  );
 706
 707     struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlv, sda_tlv);
 708     if (!icc_pk) {
 709         emv_pk_free(pk);
 710         emv_pk_free(issuer_pk);
 711         PrintAndLogEx(ERR, "Error: ICC certificate not found, exiting");
 712         return 2;
 713     }
 714
 715     PrintAndLogEx(SUCCESS, "ICC Public key recovered. RID " _YELLOW_("%s") " IDX " _YELLOW_("%02hhx") " CSN " _YELLOW_("%s"),
 716                   sprint_hex(icc_pk->rid, 5),
 717                   icc_pk->index,
 718                   sprint_hex(icc_pk->serial, 3)
 719                  );
 720
 721     if (tlvdb_get(tlv, 0x9f2d, NULL)) {
 722         struct emv_pk *icc_pe_pk = emv_pki_recover_icc_pe_cert(issuer_pk, tlv);
 723         if (!icc_pe_pk) {
 724             PrintAndLogEx(WARNING, "WARNING: ICC PE Public key recover error");
 725         } else {
 726             PrintAndLogEx(SUCCESS, "ICC PE Public key recovered. RID " _YELLOW_("%s") " IDX " _YELLOW_("%02hhx") " CSN " _YELLOW_("%s"),
 727                           sprint_hex(icc_pe_pk->rid, 5),
 728                           icc_pe_pk->index,
 729                           sprint_hex(icc_pe_pk->serial, 3)
 730                          );
 731         }
 732     } else {
 733         PrintAndLogEx(INFO, "ICC PE Public Key (PIN Encipherment Public Key Certificate) not found.\n");
 734     }
 735
 736     // 9F4B: Signed Dynamic Application Data
 737     const struct tlv *sdad_tlv = tlvdb_get(tlv, 0x9f4b, NULL);
 738     // DDA with internal authenticate OR fDDA with filled 0x9F4B tag (GPO result)
 739     // EMV kernel3 v2.4, contactless book C-3, C.1., page 147
 740     if (sdad_tlv) {
 741         PrintAndLogEx(INFO, "* * Got Signed Dynamic Application Data (9F4B) form GPO. Maybe fDDA...");
 742
 743         struct tlvdb *atc_db = emv_pki_recover_atc_ex(icc_pk, tlv, true);
 744         if (!atc_db) {
 745             PrintAndLogEx(ERR, "Error: Can't recover IDN (ICC Dynamic Number)");
 746             emv_pk_free(pk);
 747             emv_pk_free(issuer_pk);
 748             emv_pk_free(icc_pk);
 749             return 8;
 750         }
 751
 752         // 9f36 Application Transaction Counter (ATC)
 753         const struct tlv *atc_tlv = tlvdb_get(atc_db, 0x9f36, NULL);
 754         if (atc_tlv) {
 755             PrintAndLogEx(INFO, "ATC (Application Transaction Counter) [%zu] %s", atc_tlv->len, sprint_hex_inrow(atc_tlv->value, atc_tlv->len));
 756
 757             const struct tlv *core_atc_tlv = tlvdb_get(tlv, 0x9f36, NULL);
 758             if (tlv_equal(core_atc_tlv, atc_tlv)) {
 759                 PrintAndLogEx(SUCCESS, "ATC check OK.");
 760                 PrintAndLogEx(SUCCESS, "fDDA (fast DDA) verified OK.");
 761             } else {
 762                 PrintAndLogEx(WARNING, "Error: fDDA verified, but ATC in the certificate and ATC in the record not the same.");
 763             }
 764         } else {
 765             PrintAndLogEx(WARNING, "ERROR: fDDA (fast DDA) verify error");
 766             emv_pk_free(pk);
 767             emv_pk_free(issuer_pk);
 768             emv_pk_free(icc_pk);
 769             tlvdb_free(atc_db);
 770             return 9;
 771         }
 772         tlvdb_free(atc_db);
 773
 774     } else {
 775         uint8_t buf[APDU_RES_LEN] = {0};
 776         size_t len = 0;
 777         uint16_t sw = 0;
 778         struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
 779         if (dac_db) {
 780             const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
 781             PrintAndLogEx(INFO, "SDAD verified ( %s ) (Data Authentication Code: %02hhx:%02hhx)\n", _GREEN_("ok"), dac_tlv->value[0], dac_tlv->value[1]);
 782             tlvdb_add(tlv, dac_db);
 783         } else {
 784             PrintAndLogEx(ERR, "Error: SSAD verify error");
 785             emv_pk_free(pk);
 786             emv_pk_free(issuer_pk);
 787             emv_pk_free(icc_pk);
 788             return 4;
 789         }
 790
 791         PrintAndLogEx(INFO, "* Calc DDOL");
 792         const struct tlv *ddol_tlv = tlvdb_get(tlv, 0x9f49, NULL);
 793         if (!ddol_tlv) {
 794             ddol_tlv = &default_ddol_tlv;
 795             PrintAndLogEx(INFO, "DDOL [9f49] not found. Using default DDOL");
 796         }
 797
 798         struct tlv *ddol_data_tlv = dol_process(ddol_tlv, tlv, 0);
 799         if (!ddol_data_tlv) {
 800             PrintAndLogEx(ERR, "Error: Can't create DDOL TLV");
 801             emv_pk_free(pk);
 802             emv_pk_free(issuer_pk);
 803             emv_pk_free(icc_pk);
 804             return 5;
 805         }
 806
 807         PrintAndLogEx(INFO, "DDOL data[%zu]: %s", ddol_data_tlv->len, sprint_hex(ddol_data_tlv->value, ddol_data_tlv->len));
 808
 809         PrintAndLogEx(INFO, "* Internal Authenticate");
 810         int res = EMVInternalAuthenticate(channel, true, (uint8_t *)ddol_data_tlv->value, ddol_data_tlv->len, buf, sizeof(buf), &len, &sw, NULL);
 811         if (res) {
 812             PrintAndLogEx(ERR, "Internal Authenticate error(%d): %4x, exiting..", res, sw);
 813             free(ddol_data_tlv);
 814             emv_pk_free(pk);
 815             emv_pk_free(issuer_pk);
 816             emv_pk_free(icc_pk);
 817             return 6;
 818         }
 819
 820         struct tlvdb *dda_db = NULL;
 821         if (buf[0] == 0x80) {
 822             if (len < 3) {
 823                 PrintAndLogEx(WARNING, "Warning: Internal Authenticate format1 parsing error. length=%zu", len);
 824             } else {
 825                 // parse response 0x80
 826                 struct tlvdb *t80 = tlvdb_parse_multi(buf, len);
 827                 const struct tlv *t80tlv = tlvdb_get_tlv(t80);
 828
 829                 // 9f4b Signed Dynamic Application Data
 830                 dda_db = tlvdb_fixed(0x9f4b, t80tlv->len, t80tlv->value);
 831                 tlvdb_add(tlv, dda_db);
 832
 833                 tlvdb_free(t80);
 834
 835                 if (decodeTLV) {
 836                     PrintAndLogEx(INFO, "* * Decode response format 1:");
 837                     TLVPrintFromTLV(dda_db);
 838                 }
 839             }
 840         } else {
 841             dda_db = tlvdb_parse_multi(buf, len);
 842             if (!dda_db) {
 843                 PrintAndLogEx(ERR, "Error: Can't parse Internal Authenticate result as TLV");
 844                 free(ddol_data_tlv);
 845                 emv_pk_free(pk);
 846                 emv_pk_free(issuer_pk);
 847                 emv_pk_free(icc_pk);
 848                 return 7;
 849             }
 850             tlvdb_add(tlv, dda_db);
 851
 852             if (decodeTLV)
 853                 TLVPrintFromTLV(dda_db);
 854         }
 855
 856         struct tlvdb *idn_db = emv_pki_recover_idn_ex(icc_pk, dda_db, ddol_data_tlv, true);
 857         free(ddol_data_tlv);
 858         if (!idn_db) {
 859             PrintAndLogEx(ERR, "Error: Can't recover IDN (ICC Dynamic Number)");
 860             tlvdb_free(dda_db);
 861             emv_pk_free(pk);
 862             emv_pk_free(issuer_pk);
 863             emv_pk_free(icc_pk);
 864             return 8;
 865         }
 866         tlvdb_free(dda_db);
 867
 868         // 9f4c ICC Dynamic Number
 869         const struct tlv *idn_tlv = tlvdb_get(idn_db, 0x9f4c, NULL);
 870         if (idn_tlv) {
 871             PrintAndLogEx(INFO, "IDN (ICC Dynamic Number) [%zu] %s", idn_tlv->len, sprint_hex_inrow(idn_tlv->value, idn_tlv->len));
 872             PrintAndLogEx(INFO, "DDA verified OK.");
 873             tlvdb_add(tlv, idn_db);
 874             tlvdb_free(idn_db);
 875         } else {
 876             PrintAndLogEx(ERR, "DDA verify error");
 877             tlvdb_free(idn_db);
 878
 879             emv_pk_free(pk);
 880             emv_pk_free(issuer_pk);
 881             emv_pk_free(icc_pk);
 882             return 9;
 883         }
 884     }
 885
 886     emv_pk_free(pk);
 887     emv_pk_free(issuer_pk);
 888     emv_pk_free(icc_pk);
 889     return 0;
 890 }
 891
 892 int trCDA(struct tlvdb *tlv, struct tlvdb *ac_tlv, struct tlv *pdol_data_tlv, struct tlv *ac_data_tlv) {
 893
 894     struct emv_pk *pk = get_ca_pk(tlv);
 895     if (!pk) {
 896         PrintAndLogEx(ERR, "Error: Key not found, exiting");
 897         return 2;
 898     }
 899
 900     const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
 901     if (!sda_tlv || sda_tlv->len < 1) {
 902         PrintAndLogEx(ERR, "Error: Can't find input list for Offline Data Authentication, exiting");
 903         emv_pk_free(pk);
 904         return 3;
 905     }
 906
 907     struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
 908     if (!issuer_pk) {
 909         PrintAndLogEx(ERR, "Error: Issuer certificate not found, exiting");
 910         emv_pk_free(pk);
 911         return 2;
 912     }
 913
 914     PrintAndLogEx(SUCCESS, "Issuer Public key recovered  RID " _YELLOW_("%s") " IDX " _YELLOW_("%02hhx") " CSN " _YELLOW_("%s"),
 915                   sprint_hex(issuer_pk->rid, 5),
 916                   issuer_pk->index,
 917                   sprint_hex(issuer_pk->serial, 3)
 918                  );
 919
 920     struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlv, sda_tlv);
 921     if (!icc_pk) {
 922         PrintAndLogEx(ERR, "Error: ICC certificate not found, exiting");
 923         emv_pk_free(pk);
 924         emv_pk_free(issuer_pk);
 925         return 2;
 926     }
 927
 928     PrintAndLogEx(SUCCESS, "ICC Public key recovered. RID " _YELLOW_("%s") " IDX " _YELLOW_("%02hhx") " CSN " _YELLOW_("%s"),
 929                   sprint_hex(icc_pk->rid, 5),
 930                   icc_pk->index,
 931                   sprint_hex(icc_pk->serial, 3)
 932                  );
 933
 934     // Signed Static Application Data (SSAD) check
 935     const struct tlv *ssad_tlv = tlvdb_get(tlv, 0x93, NULL);
 936     if (ssad_tlv && ssad_tlv->len > 1) {
 937         struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
 938         if (dac_db) {
 939             const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
 940             PrintAndLogEx(SUCCESS, "Signed Static Application Data (SSAD) verified ( %s ) (%02hhx:%02hhx)", _GREEN_("ok"), dac_tlv->value[0], dac_tlv->value[1]);
 941             tlvdb_add(tlv, dac_db);
 942         } else {
 943             PrintAndLogEx(ERR, "Error: Signed Static Application Data (SSAD) verify error");
 944             emv_pk_free(pk);
 945             emv_pk_free(issuer_pk);
 946             emv_pk_free(icc_pk);
 947             return 4;
 948         }
 949     }
 950
 951     PrintAndLogEx(INFO, "* * Check Signed Dynamic Application Data (SDAD)");
 952     struct tlvdb *idn_db = emv_pki_perform_cda_ex(icc_pk, tlv, ac_tlv,
 953                                                   pdol_data_tlv, // pdol
 954                                                   ac_data_tlv,   // cdol1
 955                                                   NULL,          // cdol2
 956                                                   true);
 957     if (idn_db) {
 958         const struct tlv *idn_tlv = tlvdb_get(idn_db, 0x9f4c, NULL);
 959         PrintAndLogEx(INFO, "IDN (ICC Dynamic Number) [%zu] %s", idn_tlv->len, sprint_hex_inrow(idn_tlv->value, idn_tlv->len));
 960         PrintAndLogEx(SUCCESS, "CDA verified ( %s )", _GREEN_("ok"));
 961         tlvdb_add(tlv, idn_db);
 962     } else {
 963         PrintAndLogEx(ERR, "ERROR: CDA verify error");
 964     }
 965
 966     emv_pk_free(pk);
 967     emv_pk_free(issuer_pk);
 968     emv_pk_free(icc_pk);
 969     return 0;
 970 }
 971
 972 int RecoveryCertificates(struct tlvdb *tlvRoot, json_t *root) {
 973     struct emv_pk *pk = get_ca_pk(tlvRoot);
 974     if (!pk) {
 975         PrintAndLogEx(ERR, "ERROR: Key not found, exiting");
 976         return 1;
 977     }
 978
 979     struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlvRoot);
 980     if (!issuer_pk) {
 981         emv_pk_free(pk);
 982         PrintAndLogEx(WARNING, "WARNING: Issuer certificate not found, exiting");
 983         return 2;
 984     }
 985
 986     PrintAndLogEx(SUCCESS, "Issuer Public key recovered  RID " _YELLOW_("%s") " IDX " _YELLOW_("%02hhx") " CSN " _YELLOW_("%s"),
 987                   sprint_hex(issuer_pk->rid, 5),
 988                   issuer_pk->index,
 989                   sprint_hex(issuer_pk->serial, 3)
 990                  );
 991
 992     JsonSaveBufAsHex(root, "$.ApplicationData.RID", issuer_pk->rid, 5);
 993
 994     char *issuer_pk_c = emv_pk_dump_pk(issuer_pk);
 995     JsonSaveStr(root, "$.ApplicationData.IssuerPublicKeyDec", issuer_pk_c);
 996     JsonSaveBufAsHex(root, "$.ApplicationData.IssuerPublicKeyModulus", issuer_pk->modulus, issuer_pk->mlen);
 997     free(issuer_pk_c);
 998
 999     const struct tlv *sda_tlv = tlvdb_get(tlvRoot, 0x21, NULL);
1000     struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlvRoot, sda_tlv);
1001     if (!icc_pk) {
1002         emv_pk_free(pk);
1003         emv_pk_free(issuer_pk);
1004         PrintAndLogEx(WARNING, "WARNING: ICC certificate not found, exiting");
1005         return 2;
1006     }
1007
1008     PrintAndLogEx(SUCCESS, "ICC Public key recovered     RID " _YELLOW_("%s") " IDX " _YELLOW_("%02hhx") " CSN " _YELLOW_("%s"),
1009                   sprint_hex(icc_pk->rid, 5),
1010                   icc_pk->index,
1011                   sprint_hex(icc_pk->serial, 3)
1012                  );
1013
1014     char *icc_pk_c = emv_pk_dump_pk(icc_pk);
1015     JsonSaveStr(root, "$.ApplicationData.ICCPublicKeyDec", icc_pk_c);
1016     JsonSaveBufAsHex(root, "$.ApplicationData.ICCPublicKeyModulus", icc_pk->modulus, icc_pk->mlen);
1017     free(icc_pk_c);
1018     return 0;
1019 }