]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/emv/emvcore.c
Update lfops.c
[proxmark3-svn] / client / emv / emvcore.c
index 8dc9325964142dedc24d6633c4838e7db0bfba61..46fc1b1e9f16eabcebe6c140095e0c794f2b1263 100644 (file)
 
 #include "emvcore.h"
 
-static bool print_cb(void *data, const struct tlv *tlv, int level) {
+#include <string.h>
+#include "emvjson.h"
+#include "util_posix.h"
+#include "protocols.h"
+#include "ui.h"
+#include "util.h"
+#include "emv_tags.h"
+#include "emv_pk.h"
+#include "emv_pki.h"
+#include "cmdhf14a.h"
+#include "apduinfo.h"
+#include "tlv.h"
+#include "dump.h"
+#include "dol.h"
+
+#ifdef WITH_SMARTCARD
+#include "cmdsmartcard.h"
+#endif
+
+
+// Got from here. Thanks)
+// https://eftlab.co.uk/index.php/site-map/knowledge-base/211-emv-aid-rid-pix
+static const char *PSElist [] = {
+       "325041592E5359532E4444463031", // 2PAY.SYS.DDF01 - Visa Proximity Payment System Environment - PPSE
+       "315041592E5359532E4444463031"  // 1PAY.SYS.DDF01 - Visa Payment System Environment - PSE
+};
+//static const size_t PSElistLen = sizeof(PSElist)/sizeof(char*);
+
+char *TransactionTypeStr[] = {
+       "MSD",
+       "VSDC",
+       "qVCDCMCHIP",
+       "CDA"
+};
+
+typedef struct {
+       enum CardPSVendor vendor;
+       const char* aid;
+} TAIDList;
+
+static const TAIDList AIDlist [] = {
+       // Visa International
+       { CV_VISA,  "A00000000305076010"},          // VISA ELO Credit
+       { CV_VISA,  "A0000000031010" },             // VISA Debit/Credit (Classic)
+       { CV_VISA,  "A000000003101001" },           // VISA Credit
+       { CV_VISA,  "A000000003101002" },           // VISA Debit
+       { CV_VISA,  "A0000000032010" },             // VISA Electron
+       { CV_VISA,  "A0000000032020" },             // VISA
+       { CV_VISA,  "A0000000033010" },             // VISA Interlink
+       { CV_VISA,  "A0000000034010" },             // VISA Specific
+       { CV_VISA,  "A0000000035010" },             // VISA Specific
+       { CV_VISA,  "A0000000036010" },             // Domestic Visa Cash Stored Value
+       { CV_VISA,  "A0000000036020" },             // International Visa Cash Stored Value
+       { CV_VISA,  "A0000000038002" },             // VISA Auth, VisaRemAuthen EMV-CAP (DPA)
+       { CV_VISA,  "A0000000038010" },             // VISA Plus
+       { CV_VISA,  "A0000000039010" },             // VISA Loyalty
+       { CV_VISA,  "A000000003999910" },           // VISA Proprietary ATM
+       // Visa USA
+       { CV_VISA,  "A000000098" },                 // Debit Card
+       { CV_VISA,  "A0000000980848" },             // Debit Card
+       // Mastercard International
+       { CV_MASTERCARD, "A00000000401" },          // MasterCard PayPass
+       { CV_MASTERCARD, "A0000000041010" },        // MasterCard Credit
+       { CV_MASTERCARD, "A00000000410101213" },    // MasterCard Credit
+       { CV_MASTERCARD, "A00000000410101215" },    // MasterCard Credit
+       { CV_MASTERCARD, "A0000000042010" },        // MasterCard Specific
+       { CV_MASTERCARD, "A0000000043010" },        // MasterCard Specific
+       { CV_MASTERCARD, "A0000000043060" },        // Maestro (Debit)
+       { CV_MASTERCARD, "A000000004306001" },      // Maestro (Debit)
+       { CV_MASTERCARD, "A0000000044010" },        // MasterCard Specific
+       { CV_MASTERCARD, "A0000000045010" },        // MasterCard Specific
+       { CV_MASTERCARD, "A0000000046000" },        // Cirrus
+       { CV_MASTERCARD, "A0000000048002" },        // SecureCode Auth EMV-CAP
+       { CV_MASTERCARD, "A0000000049999" },        // MasterCard PayPass
+       { CV_MASTERCARD, "B012345678" },            // Maestro TEST Used for development
+       // American Express
+       { CV_AMERICANEXPRESS, "A000000025" },
+       { CV_AMERICANEXPRESS, "A0000000250000" },
+       { CV_AMERICANEXPRESS, "A00000002501" },
+       { CV_AMERICANEXPRESS, "A000000025010402" },
+       { CV_AMERICANEXPRESS, "A000000025010701" },
+       { CV_AMERICANEXPRESS, "A000000025010801" },
+       // Groupement des Cartes Bancaires "CB"
+       { CV_CB, "A0000000421010" },                // Cartes Bancaire EMV Card
+       { CV_CB, "A0000000422010" },
+       { CV_CB, "A0000000423010" },
+       { CV_CB, "A0000000424010" },
+       { CV_CB, "A0000000425010" },
+       // JCB CO., LTD.
+       { CV_JCB, "A00000006510" },                 // JCB
+       { CV_JCB, "A0000000651010" },               // JCB J Smart Credit
+       // Switch Card Services Ltd.
+       { CV_SWITCH, "A0000000050001" },            // Maestro UK
+       { CV_SWITCH, "A0000000050002" },            // Solo
+       // Diners Club International Ltd.
+       { CV_DINERS, "A0000001523010" },            // Discover, Pulse D Pas Discover Card
+       { CV_DINERS, "A0000001524010" },            // Discover, Discover Debit Common Card
+       // Other
+       { CV_OTHER, "A00000002401" },               // Midland Bank Plc - Self Service
+       { CV_OTHER, "A0000000291010" },             // LINK Interchange Network Ltd - Link / American Express
+       { CV_OTHER, "A00000006900" },               // Société Européenne de Monnaie Electronique SEME - Moneo
+       { CV_OTHER, "A000000077010000021000000000003B" },  // Oberthur Technologies France - Visa AEPN
+       { CV_OTHER, "A0000001211010" },             // PBS Danmark A/S - Denmark - Dankort (VISA GEM Vision) - Danish domestic debit card
+       { CV_OTHER, "A0000001410001" },             // Associazione Bancaria Italiana - Italy - PagoBANCOMAT - CoGeBan Consorzio BANCOMAT (Italian domestic debit card)
+       { CV_OTHER, "A0000001544442" },             // Banricompras Debito - Banrisul - Banco do Estado do Rio Grande do SUL - S.A.
+       { CV_OTHER, "A000000172950001" },           // Financial Information Service Co. Ltd. - Taiwan - BAROC Financial Application Taiwan- The Bankers Association of the Republic of China
+       { CV_OTHER, "A0000001850002" },             // Post Office Limited - United Kingdom - UK Post Office Account card
+       { 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)
+       { 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)
+       { CV_OTHER, "A0000002771010" },             // Interac Association - Canada - INTERAC - Canadian domestic credit/debit card
+       { CV_OTHER, "A00000031510100528" },         // Currence Holding/PIN BV - The Netherlands- Currence PuC
+       { CV_OTHER, "A0000003156020" },             // Currence Holding/PIN BV - The Netherlands - Chipknip
+       { CV_OTHER, "A0000003591010028001" },       // Euro Alliance of Payment Schemes s.c.r.l. (EAPS) - Belgium - Girocard EAPS - ZKA (Germany)
+       { CV_OTHER, "A0000003710001" },             // Verve - Nigeria - InterSwitch Verve Card - Nigerian local switch company
+       { CV_OTHER, "A0000004540010" },             // eTranzact - Nigeria - Etranzact Genesis Card - Nigerian local switch company
+       { CV_OTHER, "A0000004540011" },             // eTranzact - Nigeria - Etranzact Genesis Card 2 - Nigerian local switch company
+       { CV_OTHER, "A0000004766C" },               // Google - United States - GOOGLE_PAYMENT_AID
+       { CV_OTHER, "A0000005241010" },             // RuPay - India - RuPay - RuPay (India)
+       { CV_OTHER, "A0000006723010" },             // TROY - Turkey - TROY chip credit card - Turkey's Payment Method
+       { CV_OTHER, "A0000006723020" },             // TROY - Turkey - TROY chip debit card - Turkey's Payment Method
+       { CV_OTHER, "A0000007705850" },             // Indian Oil Corporation Limited - India - XTRAPOWER Fleet Card Program - Indian Oil’s Pre Paid Program
+       { CV_OTHER, "D27600002545500100" },         // ZKA - Germany - Girocard - ZKA Girocard (Geldkarte) (Germany)
+       { CV_OTHER, "D5280050218002" },             // The Netherlands - ? - (Netherlands)
+       { CV_OTHER, "D5780000021010" },             // Bankaxept    Norway  Bankaxept   Norwegian domestic debit card
+       { CV_OTHER, "F0000000030001" },             // BRADESCO - Brazilian Bank Banco Bradesco
+};
+static const size_t AIDlistLen = sizeof(AIDlist)/sizeof(TAIDList);
+
+static bool APDULogging = false;
+void SetAPDULogging(bool logging) {
+       APDULogging = logging;
+}
+
+void DropFieldEx(EMVCommandChannel channel) {
+       if (channel == ECC_CONTACTLESS) {
+               DropField();
+       }
+}
+
+enum CardPSVendor GetCardPSVendor(uint8_t * AID, size_t AIDlen) {
+       char buf[100] = {0};
+       if (AIDlen < 1)
+               return CV_NA;
+
+       hex_to_buffer((uint8_t *)buf, AID, AIDlen, sizeof(buf) - 1, 0, 0, true);
+
+       for(int i = 0; i < AIDlistLen; i ++) {
+               if (strncmp(AIDlist[i].aid, buf, strlen(AIDlist[i].aid)) == 0){
+                       return AIDlist[i].vendor;
+               }
+       }
+
+       return CV_NA;
+}
+
+static bool print_cb(void *data, const struct tlv *tlv, int level, bool is_leaf) {
        emv_tag_dump(tlv, stdout, level);
-       dump_buffer(tlv->value, tlv->len, stdout, level);
+       if (is_leaf) {
+               dump_buffer(tlv->value, tlv->len, stdout, level);
+       }
 
        return true;
 }
 
-void TLVPrintFromBuffer(uint8_t *data, int datalen) {
+bool TLVPrintFromBuffer(uint8_t *data, int datalen) {
        struct tlvdb *t = NULL;
        t = tlvdb_parse_multi(data, datalen);
        if (t) {
-               PrintAndLog("TLV decoded:");
-               
+               PrintAndLogEx(NORMAL, "-------------------- TLV decoded --------------------");
+
                tlvdb_visit(t, print_cb, NULL, 0);
                tlvdb_free(t);
+               return true;
+       } else {
+               PrintAndLogEx(WARNING, "TLV ERROR: Can't parse response as TLV tree.");
+       }
+       return false;
+}
+
+void TLVPrintFromTLVLev(struct tlvdb *tlv, int level) {
+       if (!tlv)
+               return;
+
+       tlvdb_visit(tlv, print_cb, NULL, level);
+}
+
+void TLVPrintFromTLV(struct tlvdb *tlv) {
+       TLVPrintFromTLVLev(tlv, 0);
+}
+
+void TLVPrintAIDlistFromSelectTLV(struct tlvdb *tlv) {
+       PrintAndLogEx(NORMAL, "|------------------|--------|-------------------------|");
+       PrintAndLogEx(NORMAL, "|    AID           |Priority| Name                    |");
+       PrintAndLogEx(NORMAL, "|------------------|--------|-------------------------|");
+
+       struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f);
+       if (!ttmp)
+               PrintAndLogEx(NORMAL, "|                         none                        |");
+
+       while (ttmp) {
+               const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x84, NULL);
+               const struct tlv *tgName = tlvdb_get_inchild(ttmp, 0x50, NULL);
+               const struct tlv *tgPrio = tlvdb_get_inchild(ttmp, 0x87, NULL);
+               if (!tgAID)
+                       break;
+               PrintAndLogEx(NORMAL, "|%s|   %s  |%s|",
+                       sprint_hex_inrow_ex(tgAID->value, tgAID->len, 18),
+                       (tgPrio) ? sprint_hex(tgPrio->value, 1) : "   ",
+                       (tgName) ? sprint_ascii_ex(tgName->value, tgName->len, 25) : "                         ");
+
+               ttmp = tlvdb_find_next(ttmp, 0x6f);
+       }
+
+       PrintAndLogEx(NORMAL, "|------------------|--------|-------------------------|");
+}
+
+struct tlvdb *GetPANFromTrack2(const struct tlv *track2) {
+       char track2Hex[200] = {0};
+       uint8_t PAN[100] = {0};
+       int PANlen = 0;
+       char *tmp = track2Hex;
+
+       if (!track2)
+               return NULL;
+
+       for (int i = 0; i < track2->len; ++i, tmp += 2)
+               sprintf(tmp, "%02x", (unsigned int)track2->value[i]);
+
+       int posD = strchr(track2Hex, 'd') - track2Hex;
+       if (posD < 1)
+               return NULL;
+
+       track2Hex[posD] = 0;
+       if (strlen(track2Hex) % 2) {
+               track2Hex[posD] = 'F';
+               track2Hex[posD + 1] = '\0';
+       }
+
+       param_gethex_to_eol(track2Hex, 0, PAN, sizeof(PAN), &PANlen);
+
+  return tlvdb_fixed(0x5a, PANlen, PAN);
+}
+
+struct tlvdb *GetdCVVRawFromTrack2(const struct tlv *track2) {
+       char track2Hex[200] = {0};
+       char dCVVHex[100] = {0};
+       uint8_t dCVV[100] = {0};
+       int dCVVlen = 0;
+       const int PINlen = 5; // must calculated from 9F67 MSD Offset but i have not seen this tag)
+       char *tmp = track2Hex;
+
+       if (!track2)
+               return NULL;
+
+       for (int i = 0; i < track2->len; ++i, tmp += 2)
+               sprintf(tmp, "%02x", (unsigned int)track2->value[i]);
+
+       int posD = strchr(track2Hex, 'd') - track2Hex;
+       if (posD < 1)
+               return NULL;
+
+       memset(dCVVHex, '0', 32);
+       // ATC
+       memcpy(dCVVHex + 0, track2Hex + posD + PINlen + 11, 4);
+       // PAN 5 hex
+       memcpy(dCVVHex + 4, track2Hex, 5);
+       // expire date
+       memcpy(dCVVHex + 9, track2Hex + posD + 1, 4);
+       // service code
+       memcpy(dCVVHex + 13, track2Hex + posD + 5, 3);
+
+       param_gethex_to_eol(dCVVHex, 0, dCVV, sizeof(dCVV), &dCVVlen);
+
+  return tlvdb_fixed(0x02, dCVVlen, dCVV);
+}
+
+
+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) 
+{
+       *ResultLen = 0;
+       if (sw) *sw = 0;
+       uint16_t isw = 0;
+       int res = 0;
+
+       if (ActivateField) {
+               DropFieldEx( channel );
+               msleep(50);
+       }
+
+       if (APDULogging)
+               PrintAndLogEx(SUCCESS, ">>>> %s", sprint_hex(apdu, apdu_len));
+
+#ifdef WITH_SMARTCARD
+       switch(channel) {
+               case ECC_CONTACTLESS:
+                       // 6 byes + data = INS + CLA + P1 + P2 + Lc + <data = Nc> + Le(?IncludeLe)
+                       res = ExchangeAPDU14a(apdu, apdu_len, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen);
+                       break;
+               case ECC_CONTACT:
+                       res = ExchangeAPDUSC(apdu, apdu_len, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen);
+                       break;
+       }
+#else
+       res = ExchangeAPDU14a(apdu, apdu_len, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen);
+#endif 
+
+       if (res) {
+               return res;
+       }
+
+       if (APDULogging)
+               PrintAndLogEx(SUCCESS, "<<<< %s", sprint_hex(Result, *ResultLen));
+
+       if (*ResultLen < 2) {
+               return 200;
+       }
+
+       if (Result[*ResultLen-2] == 0x61) {
+               uint8_t La = Result[*ResultLen-1];
+               uint8_t get_response[5] = {apdu[0], ISO7816_GET_RESPONSE, 0x00, 0x00, La};
+               size_t oldlen = *ResultLen;
+               res = EMVExchangeEx(channel, false, LeaveFieldON, get_response, sizeof(get_response), &Result[oldlen-2], MaxResultLen-oldlen+2, ResultLen, sw, tlv);
+               *ResultLen += oldlen;
+       }
+
+       if (res) return res;
+
+       *ResultLen -= 2;
+       
+       isw = Result[*ResultLen] * 0x0100 + Result[*ResultLen + 1];
+       if (sw)
+               *sw = isw;
+
+       if (isw != 0x9000) {
+               if (APDULogging) {
+                       PrintAndLogEx(ERR, "APDU(%02x%02x) ERROR: [%4X] %s", apdu[0], apdu[1], isw, GetAPDUCodeDescription(*sw >> 8, *sw & 0xff));
+                       return 5;
+               }
+       }
+
+       // add to tlv tree
+       if (tlv) {
+               struct tlvdb *t = tlvdb_parse_multi(Result, *ResultLen);
+               tlvdb_add(tlv, t);
+       }
+
+       return 0;
+}
+
+static 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) 
+{
+       uint8_t APDU[APDU_COMMAND_LEN];
+       memcpy(APDU, apdu, apdu_len);
+       APDU[apdu_len] = 0x00; 
+       if (channel == ECC_CONTACTLESS) {
+               if (apdu_len == 5) {
+                       // there is no Lc but an Le already
+               } else if (apdu_len > 5 && apdu_len == 5 + apdu[4] + 1) {
+                       // there is Lc, data and Le
+               } else {
+                       apdu_len++; // no Le, add Le = 0x00 because some vendors require it for contactless
+               }
+       }
+       return EMVExchangeEx(channel, false, LeaveFieldON, APDU, apdu_len, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+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) 
+{
+       uint8_t Select_APDU[APDU_COMMAND_LEN] = {0x00, ISO7816_SELECT_FILE, 0x04, 0x00, AIDLen, 0x00};
+       memcpy(Select_APDU + 5, AID, AIDLen);
+       int apdulen = 5 + AIDLen;
+       if (channel == ECC_CONTACTLESS) {
+               apdulen++;  // some vendors require Le = 0x00 for contactless operations
+       }
+       return EMVExchangeEx(channel, ActivateField, LeaveFieldON, Select_APDU, apdulen, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+int EMVSelectPSE(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldON, uint8_t PSENum, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw) {
+       uint8_t buf[APDU_DATA_LEN] = {0};
+       *ResultLen = 0;
+       int len = 0;
+       int res = 0;
+       switch (PSENum) {
+               case 1:
+                       param_gethex_to_eol(PSElist[1], 0, buf, sizeof(buf), &len);
+                       break;
+               case 2:
+               
+                       param_gethex_to_eol(PSElist[0], 0, buf, sizeof(buf), &len);
+                       break;
+               default:
+                       return -1;
+       }
+
+       // select
+       res = EMVSelect(channel, ActivateField, LeaveFieldON, buf, len, Result, MaxResultLen, ResultLen, sw, NULL);
+
+       return res;
+}
+
+
+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) {
+       int retrycnt = 0;
+       int res = 0;
+       do {
+               res = EMVSelect(channel, false, true, AID, AIDLen, Result, MaxResultLen, ResultLen, sw, tlv);
+
+               // retry if error and not returned sw error
+               if (res && res != 5) {
+                       if (++retrycnt < 3){
+                               continue;
+                       } else {
+                               // card select error, proxmark error
+                               if (res == 1) {
+                                       PrintAndLogEx(WARNING, "Exit...");
+                                       return 1;
+                               }
+                               
+                               retrycnt = 0;
+                               PrintAndLogEx(NORMAL, "Retry failed [%s]. Skiped...", sprint_hex_inrow(AID, AIDLen));
+                               return res;
+                       }       
+               }
+       } while (res && res != 5);
+
+       return res;
+}
+
+
+int EMVCheckAID(EMVCommandChannel channel, bool decodeTLV, struct tlvdb *tlvdbelm, struct tlvdb *tlv){
+       uint8_t data[APDU_RESPONSE_LEN] = {0};
+       size_t datalen = 0;
+       int res = 0;
+       uint16_t sw = 0;
+
+       while (tlvdbelm) {
+               const struct tlv *tgAID = tlvdb_get_inchild(tlvdbelm, 0x4f, NULL);
+               if (tgAID) {
+                       res = EMVSelectWithRetry(channel, false, true, (uint8_t *)tgAID->value, tgAID->len, data, sizeof(data), &datalen, &sw, tlv);
+
+                       // if returned sw error
+                       if (res == 5) {
+                               // next element
+                               tlvdbelm = tlvdb_find_next(tlvdbelm, 0x61);
+                               continue;
+                       }
+                       
+                       if (res)
+                               break;
+
+                       // all is ok
+                       if (decodeTLV){
+                               PrintAndLogEx(NORMAL, "%s:", sprint_hex_inrow(tgAID->value, tgAID->len));
+                               TLVPrintFromBuffer(data, datalen);
+                       }
+               }
+               tlvdbelm = tlvdb_find_next(tlvdbelm, 0x61);
+       }
+       return res;
+}
+
+
+int EMVSearchPSE(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldON, uint8_t PSENum, bool decodeTLV, struct tlvdb *tlv) {
+       uint8_t data[APDU_RESPONSE_LEN] = {0};
+       size_t datalen = 0;
+       uint8_t sfidata[0x11][APDU_RESPONSE_LEN] = {0};
+       size_t sfidatalen[0x11] = {0};
+       uint16_t sw = 0;
+       int res;
+       bool fileFound = false;
+
+       char *PSE_or_PPSE = PSENum == 1 ? "PSE" : "PPSE";
+       
+       // select PPSE
+       res = EMVSelectPSE(channel, ActivateField, true, PSENum, data, sizeof(data), &datalen, &sw);
+
+       if (!res){
+               if (sw != 0x9000) {
+                       PrintAndLogEx(FAILED, "Select PSE error. APDU error: %04x.", sw);
+                       return 1;
+               }
+               
+               struct tlvdb *t = NULL;
+               t = tlvdb_parse_multi(data, datalen);
+               if (t) {
+                       // PSE/PPSE with SFI
+                       struct tlvdb *tsfi = tlvdb_find_path(t, (tlv_tag_t[]){0x6f, 0xa5, 0x88, 0x00});
+                       if (tsfi) {
+                               uint8_t sfin = 0;
+                               tlv_get_uint8(tlvdb_get_tlv(tsfi), &sfin);
+                               PrintAndLogEx(INFO, "* PPSE get SFI: 0x%02x.", sfin);
+                               
+                               for (uint8_t ui = 0x01; ui <= 0x10; ui++) {
+                                       PrintAndLogEx(INFO, "* * Get SFI: 0x%02x. num: 0x%02x", sfin, ui);
+                                       res = EMVReadRecord(channel, true, sfin, ui, sfidata[ui], APDU_RESPONSE_LEN, &sfidatalen[ui], &sw, NULL);
+                                       
+                                       // end of records
+                                       if (sw == 0x6a83) {
+                                               sfidatalen[ui] = 0;
+                                               PrintAndLogEx(INFO, "* * PPSE get SFI. End of records.");
+                                               break;
+                                       }
+                                       
+                                       // error catch!
+                                       if (sw != 0x9000) {
+                                               sfidatalen[ui] = 0;
+                                               PrintAndLogEx(FAILED, "PPSE get Error. APDU error: %04x.", sw);
+                                               break;
+                                       }
+
+                                       if (decodeTLV){
+                                               TLVPrintFromBuffer(sfidata[ui], sfidatalen[ui]);
+                                       }
+                               }
+
+                               for (uint8_t ui = 0x01; ui <= 0x10; ui++) {
+                                       if (sfidatalen[ui]) {
+                                               struct tlvdb *tsfi = NULL;
+                                               tsfi = tlvdb_parse_multi(sfidata[ui], sfidatalen[ui]);
+                                               if (tsfi) {
+                                                       struct tlvdb *tsfitmp = tlvdb_find_path(tsfi, (tlv_tag_t[]){0x70, 0x61, 0x00});
+                                                       if (!tsfitmp) {
+                                                               PrintAndLogEx(FAILED, "SFI 0x%02d doesn't have any records.", sfidatalen[ui]);
+                                                               continue;
+                                                       }
+                                                       res = EMVCheckAID(channel, decodeTLV, tsfitmp, tlv);                                                    
+                                                       fileFound = true;
+                                               }
+                                               tlvdb_free(tsfi);
+                                       }
+                               }
+                       }
+
+
+                       // PSE/PPSE plain (wo SFI)
+                       struct tlvdb *ttmp = tlvdb_find_path(t, (tlv_tag_t[]){0x6f, 0xa5, 0xbf0c, 0x61, 0x00});
+                       if (ttmp) {
+                               res = EMVCheckAID(channel, decodeTLV, ttmp, tlv);
+                               fileFound = true;
+                       }
+                       
+                       if (!fileFound)
+                               PrintAndLogEx(FAILED, "PPSE doesn't have any records.");
+
+                       tlvdb_free(t);
+               } else {
+                       PrintAndLogEx(WARNING, "%s ERROR: Can't get TLV from response.", PSE_or_PPSE);
+               }
+       } else {
+               PrintAndLogEx(WARNING, "%s ERROR: Can't select PPSE AID. Error: %d", PSE_or_PPSE, res);
+       }
+
+       if (!LeaveFieldON)
+               DropFieldEx( channel );
+
+       return res;
+}
+
+int EMVSearch(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldON, bool decodeTLV, struct tlvdb *tlv) {
+       uint8_t aidbuf[APDU_DATA_LEN] = {0};
+       int aidlen = 0;
+       uint8_t data[APDU_RESPONSE_LEN] = {0};
+       size_t datalen = 0;
+       uint16_t sw = 0;
+
+       int res = 0;
+       int retrycnt = 0;
+       for(int i = 0; i < AIDlistLen; i ++) {
+               param_gethex_to_eol(AIDlist[i].aid, 0, aidbuf, sizeof(aidbuf), &aidlen);
+               res = EMVSelect(channel, (i == 0) ? ActivateField : false, (i == AIDlistLen - 1) ? LeaveFieldON : true, aidbuf, aidlen, data, sizeof(data), &datalen, &sw, tlv);
+               // retry if error and not returned sw error
+               if (res && res != 5) {
+                       if (++retrycnt < 3){
+                               i--;
+                       } else {
+                               // (1) - card select error, proxmark error OR (200) - result length = 0
+                               if (res == 1 || res == 200) {
+                                       PrintAndLogEx(WARNING, "Exit...");
+                                       return 1;
+                               }
+
+                               retrycnt = 0;
+                               PrintAndLogEx(FAILED, "Retry failed [%s]. Skipped...", AIDlist[i].aid);
+                       }
+                       continue;
+               }
+               retrycnt = 0;
+
+               if (res)
+                       continue;
+
+               if (!datalen)
+                       continue;
+
+               if (decodeTLV) {
+                       PrintAndLogEx(SUCCESS, "%s", AIDlist[i].aid);
+                       TLVPrintFromBuffer(data, datalen);
+               }
+       }
+
+       return 0;
+}
+
+int EMVSelectApplication(struct tlvdb *tlv, uint8_t *AID, size_t *AIDlen) {
+       // check priority. 0x00 - highest
+       int prio = 0xffff;
+
+       *AIDlen = 0;
+
+       struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f);
+       if (!ttmp)
+               return 1;
+
+       while (ttmp) {
+               const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x84, NULL);
+               const struct tlv *tgPrio = tlvdb_get_inchild(ttmp, 0x87, NULL);
+
+               if (!tgAID)
+                       break;
+
+               if (tgPrio) {
+                       int pt = bytes_to_num((uint8_t*)tgPrio->value, (tgPrio->len < 2) ? tgPrio->len : 2);
+                       if (pt < prio) {
+                               prio = pt;
+
+                               memcpy(AID, tgAID->value, tgAID->len);
+                               *AIDlen = tgAID->len;
+                       }
+               } else {
+                       // takes the first application from list wo priority
+                       if (!*AIDlen) {
+                       memcpy(AID, tgAID->value, tgAID->len);
+                       *AIDlen = tgAID->len;
+                       }
+               }
+
+               ttmp = tlvdb_find_next(ttmp, 0x6f);
+       }
+
+       return 0;
+}
+
+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) 
+{
+       uint8_t GPO_APDU[APDU_COMMAND_LEN] = {0x80, ISO7816_GET_PROCESSING_OPTIONS, 0x00, 0x00, PDOLLen, 0x00};
+       memcpy(GPO_APDU + 5, PDOL, PDOLLen);
+       int apdulen = 5 + PDOLLen;
+       
+       return EMVExchange(channel, LeaveFieldON, GPO_APDU, apdulen, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+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)
+{
+       uint8_t read_APDU[5] = {0x00, ISO7816_READ_RECORDS, SFIrec, (SFI << 3) | 0x04, 0x00};
+       int res = EMVExchange(channel, LeaveFieldON, read_APDU, sizeof(read_APDU), Result, MaxResultLen, ResultLen, sw, tlv);
+       if (*sw == 0x6700) {
+               PrintAndLogEx(INFO, ">>> trying to reissue command withouth Le...");
+               res = EMVExchangeEx(channel, false, LeaveFieldON, read_APDU, sizeof(read_APDU), Result, MaxResultLen, ResultLen, sw, tlv);
+       }
+       return res;
+}
+
+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)
+{
+       uint8_t CDOL_APDU[APDU_COMMAND_LEN] = {0x80, 0xae, RefControl, 0x00, CDOLLen, 0x00};
+       memcpy(CDOL_APDU + 5, CDOL, CDOLLen);
+       int apdulen = 5 + CDOLLen;
+       
+       return EMVExchange(channel, LeaveFieldON, CDOL_APDU, apdulen, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+int EMVGenerateChallenge(EMVCommandChannel channel, bool LeaveFieldON, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) 
+{
+       uint8_t get_challenge_APDU[APDU_COMMAND_LEN] = {0x00, ISO7816_GET_CHALLENGE, 0x00, 0x00};
+       
+       int res = EMVExchange(channel, LeaveFieldON, get_challenge_APDU, 4, Result, MaxResultLen, ResultLen, sw, tlv);
+       if (*sw == 0x6700) {
+               PrintAndLogEx(INFO, ">>> trying to reissue command withouth Le...");
+               res = EMVExchangeEx(channel, false, LeaveFieldON, get_challenge_APDU, 4, Result, MaxResultLen, ResultLen, sw, tlv);
+       }
+       return res;
+}
+
+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) 
+{
+       uint8_t authenticate_APDU[APDU_COMMAND_LEN] = {0x00, ISO7816_INTERNAL_AUTHENTICATE, 0x00, 0x00, DDOLLen, 0x00};
+       memcpy(authenticate_APDU + 5, DDOL, DDOLLen);
+       int apdulen = 5 + DDOLLen;
+       
+       return EMVExchange(channel, LeaveFieldON, authenticate_APDU, apdulen, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+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)
+{
+       uint8_t checksum_APDU[APDU_COMMAND_LEN] = {0x80, 0x2a, 0x8e, 0x80, UDOLlen, 0x00};
+       memcpy(checksum_APDU + 5, UDOL, UDOLlen);
+       int apdulen = 5 + UDOLlen;
+       
+       return EMVExchange(channel, LeaveFieldON, checksum_APDU, apdulen, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+// Authentication
+struct emv_pk *get_ca_pk(struct tlvdb *db) {
+       const struct tlv *df_tlv = tlvdb_get(db, 0x84, NULL);
+       const struct tlv *caidx_tlv = tlvdb_get(db, 0x8f, NULL);
+
+       if (!df_tlv || !caidx_tlv || df_tlv->len < 6 || caidx_tlv->len != 1)
+               return NULL;
+
+       PrintAndLogEx(NORMAL, "CA Public Key index 0x%0x", caidx_tlv->value[0]);
+       return emv_pk_get_ca_pk(df_tlv->value, caidx_tlv->value[0]);
+}
+
+int trSDA(struct tlvdb *tlv) {
+
+       struct emv_pk *pk = get_ca_pk(tlv);
+       if (!pk) {
+               PrintAndLogEx(WARNING, "Error: Key not found. Exit.");
+               return 2;
+       }
+
+       struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
+       if (!issuer_pk) {
+               emv_pk_free(pk);
+               PrintAndLogEx(WARNING, "Error: Issuer certificate not found. Exit.");
+               return 2;
+       }
+
+       PrintAndLogEx(SUCCESS, "Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx",
+               issuer_pk->rid[0],
+               issuer_pk->rid[1],
+               issuer_pk->rid[2],
+               issuer_pk->rid[3],
+               issuer_pk->rid[4],
+               issuer_pk->index,
+               issuer_pk->serial[0],
+               issuer_pk->serial[1],
+               issuer_pk->serial[2]
+               );
+
+       const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
+       if (!sda_tlv || sda_tlv->len < 1) {
+               emv_pk_free(issuer_pk);
+               emv_pk_free(pk);
+               PrintAndLogEx(WARNING, "Can't find input list for Offline Data Authentication. Exit.");
+               return 3;
+       }
+
+       struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
+       if (dac_db) {
+               const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
+               PrintAndLogEx(NORMAL, "SDA verified OK. (Data Authentication Code: %02hhx:%02hhx)\n", dac_tlv->value[0], dac_tlv->value[1]);
+               tlvdb_add(tlv, dac_db);
+       } else {
+               emv_pk_free(issuer_pk);
+               emv_pk_free(pk);
+               PrintAndLogEx(WARNING, "SSAD verify error");
+               return 4;
+       }
+
+       emv_pk_free(issuer_pk);
+       emv_pk_free(pk);
+       return 0;
+}
+
+static const unsigned char default_ddol_value[] = {0x9f, 0x37, 0x04};
+static struct tlv default_ddol_tlv = {.tag = 0x9f49, .len = 3, .value = default_ddol_value };
+
+int trDDA(EMVCommandChannel channel, bool decodeTLV, struct tlvdb *tlv) {
+       uint8_t buf[APDU_RESPONSE_LEN] = {0};
+       size_t len = 0;
+       uint16_t sw = 0;
+
+       struct emv_pk *pk = get_ca_pk(tlv);
+       if (!pk) {
+               PrintAndLogEx(WARNING, "Error: Key not found. Exit.");
+               return 2;
+       }
+
+       const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
+/*     if (!sda_tlv || sda_tlv->len < 1) { it may be 0!!!!
+               emv_pk_free(pk);
+               PrintAndLogEx(WARNING, "Error: Can't find input list for Offline Data Authentication. Exit.");
+               return 3;
+       }
+*/
+       struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
+       if (!issuer_pk) {
+               emv_pk_free(pk);
+               PrintAndLogEx(WARNING, "Error: Issuer certificate not found. Exit.");
+               return 2;
+       }
+       PrintAndLogEx(SUCCESS, "Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
+                       issuer_pk->rid[0],
+                       issuer_pk->rid[1],
+                       issuer_pk->rid[2],
+                       issuer_pk->rid[3],
+                       issuer_pk->rid[4],
+                       issuer_pk->index,
+                       issuer_pk->serial[0],
+                       issuer_pk->serial[1],
+                       issuer_pk->serial[2]
+                       );
+
+       struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlv, sda_tlv);
+       if (!icc_pk) {
+               emv_pk_free(pk);
+               emv_pk_free(issuer_pk);
+               PrintAndLogEx(WARNING, "Error: ICC certificate not found. Exit.");
+               return 2;
+       }
+       PrintAndLogEx(SUCCESS, "ICC PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
+                       icc_pk->rid[0],
+                       icc_pk->rid[1],
+                       icc_pk->rid[2],
+                       icc_pk->rid[3],
+                       icc_pk->rid[4],
+                       icc_pk->index,
+                       icc_pk->serial[0],
+                       icc_pk->serial[1],
+                       icc_pk->serial[2]
+                       );
+
+       if (tlvdb_get(tlv, 0x9f2d, NULL)) {
+               struct emv_pk *icc_pe_pk = emv_pki_recover_icc_pe_cert(issuer_pk, tlv);
+               if (!icc_pe_pk) {
+                       PrintAndLogEx(WARNING, "WARNING: ICC PE PK recover error. ");
+               } else {
+                       PrintAndLogEx(SUCCESS, "ICC PE PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
+                                       icc_pe_pk->rid[0],
+                                       icc_pe_pk->rid[1],
+                                       icc_pe_pk->rid[2],
+                                       icc_pe_pk->rid[3],
+                                       icc_pe_pk->rid[4],
+                                       icc_pe_pk->index,
+                                       icc_pe_pk->serial[0],
+                                       icc_pe_pk->serial[1],
+                                       icc_pe_pk->serial[2]
+                                       );
+               }
+       } else {
+               PrintAndLogEx(INFO, "ICC PE PK (PIN Encipherment Public Key Certificate) not found.\n");
+       }
+
+       // 9F4B: Signed Dynamic Application Data
+       const struct tlv *sdad_tlv = tlvdb_get(tlv, 0x9f4b, NULL);
+       // DDA with internal authenticate OR fDDA with filled 0x9F4B tag (GPO result)
+       // EMV kernel3 v2.4, contactless book C-3, C.1., page 147
+       if (sdad_tlv) {
+               PrintAndLogEx(NORMAL, "\n* * Got Signed Dynamic Application Data (9F4B) form GPO. Maybe fDDA...");
+
+               const struct tlvdb *atc_db = emv_pki_recover_atc_ex(icc_pk, tlv, true);
+               if (!atc_db) {
+                       PrintAndLogEx(WARNING, "Error: Can't recover IDN (ICC Dynamic Number)");
+                       emv_pk_free(pk);
+                       emv_pk_free(issuer_pk);
+                       emv_pk_free(icc_pk);
+                       return 8;
+               }
+
+               // 9f36 Application Transaction Counter (ATC)
+               const struct tlv *atc_tlv = tlvdb_get(atc_db, 0x9f36, NULL);
+               if(atc_tlv) {
+                       PrintAndLogEx(NORMAL, "\nATC (Application Transaction Counter) [%zu] %s", atc_tlv->len, sprint_hex_inrow(atc_tlv->value, atc_tlv->len));
+
+                       const struct tlv *core_atc_tlv = tlvdb_get(tlv, 0x9f36, NULL);
+                       if(tlv_equal(core_atc_tlv, atc_tlv)) {
+                               PrintAndLogEx(SUCCESS, "ATC check OK.");
+                               PrintAndLogEx(SUCCESS, "fDDA (fast DDA) verified OK.");
+                       } else {
+                               PrintAndLogEx(WARNING, "Error: fDDA verified, but ATC in the certificate and ATC in the record not the same.");
+                       }
+               } else {
+                       PrintAndLogEx(NORMAL, "\nERROR: fDDA (fast DDA) verify error");
+                       emv_pk_free(pk);
+                       emv_pk_free(issuer_pk);
+                       emv_pk_free(icc_pk);
+                       return 9;
+               }
        } else {
-               PrintAndLog("TLV ERROR: Can't parse response as TLV tree.");
+               struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
+               if (dac_db) {
+                       const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
+                       PrintAndLogEx(NORMAL, "SDAD verified OK. (Data Authentication Code: %02hhx:%02hhx)\n", dac_tlv->value[0], dac_tlv->value[1]);
+                       tlvdb_add(tlv, dac_db);
+               } else {
+                       PrintAndLogEx(WARNING, "Error: SSAD verify error");
+                       emv_pk_free(pk);
+                       emv_pk_free(issuer_pk);
+                       emv_pk_free(icc_pk);
+                       return 4;
+               }
+
+               PrintAndLogEx(NORMAL, "\n* Calc DDOL");
+               const struct tlv *ddol_tlv = tlvdb_get(tlv, 0x9f49, NULL);
+               if (!ddol_tlv) {
+                       ddol_tlv = &default_ddol_tlv;
+                       PrintAndLogEx(NORMAL, "DDOL [9f49] not found. Using default DDOL");
+               }
+
+               struct tlv *ddol_data_tlv = dol_process(ddol_tlv, tlv, 0);
+               if (!ddol_data_tlv) {
+                       PrintAndLogEx(WARNING, "Error: Can't create DDOL TLV");
+                       emv_pk_free(pk);
+                       emv_pk_free(issuer_pk);
+                       emv_pk_free(icc_pk);
+                       return 5;
+               }
+
+               PrintAndLogEx(NORMAL, "DDOL data[%d]: %s", ddol_data_tlv->len, sprint_hex(ddol_data_tlv->value, ddol_data_tlv->len));
+
+               PrintAndLogEx(NORMAL, "\n* Internal Authenticate");
+               int res = EMVInternalAuthenticate(channel, true, (uint8_t *)ddol_data_tlv->value, ddol_data_tlv->len, buf, sizeof(buf), &len, &sw, NULL);
+               if (res) {
+                       PrintAndLogEx(WARNING, "Internal Authenticate error(%d): %4x. Exit...", res, sw);
+                       free(ddol_data_tlv);
+                       emv_pk_free(pk);
+                       emv_pk_free(issuer_pk);
+                       emv_pk_free(icc_pk);
+                       return 6;
+               }
+
+               struct tlvdb *dda_db = NULL;
+               if (buf[0] == 0x80) {
+                       if (len < 3 ) {
+                               PrintAndLogEx(WARNING, "Error: Internal Authenticate format1 parsing error. length=%d", len);
+                       } else {
+                               // parse response 0x80
+                               struct tlvdb *t80 = tlvdb_parse_multi(buf, len);
+                               const struct tlv * t80tlv = tlvdb_get_tlv(t80);
+                               
+                               // 9f4b Signed Dynamic Application Data
+                               dda_db = tlvdb_fixed(0x9f4b, t80tlv->len, t80tlv->value);
+                               tlvdb_add(tlv, dda_db);
+                               
+                               tlvdb_free(t80);
+                               
+                               if (decodeTLV){
+                                       PrintAndLogEx(NORMAL, "* * Decode response format 1:");
+                                       TLVPrintFromTLV(dda_db);
+                               }
+                       }
+               } else {
+                       dda_db = tlvdb_parse_multi(buf, len);
+                       if(!dda_db) {
+                               PrintAndLogEx(WARNING, "Error: Can't parse Internal Authenticate result as TLV");
+                               free(ddol_data_tlv);
+                               emv_pk_free(pk);
+                               emv_pk_free(issuer_pk);
+                               emv_pk_free(icc_pk);
+                               return 7;
+                       }
+                       tlvdb_add(tlv, dda_db);
+
+                       if (decodeTLV)
+                               TLVPrintFromTLV(dda_db);
+               }
+
+               struct tlvdb *idn_db = emv_pki_recover_idn_ex(icc_pk, dda_db, ddol_data_tlv, true);
+               free(ddol_data_tlv);
+               if (!idn_db) {
+                       PrintAndLogEx(WARNING, "Error: Can't recover IDN (ICC Dynamic Number)");
+                       tlvdb_free(dda_db);
+                       emv_pk_free(pk);
+                       emv_pk_free(issuer_pk);
+                       emv_pk_free(icc_pk);
+                       return 8;
+               }
+               tlvdb_free(dda_db);
+
+               // 9f4c ICC Dynamic Number
+               const struct tlv *idn_tlv = tlvdb_get(idn_db, 0x9f4c, NULL);
+               if(idn_tlv) {
+                       PrintAndLogEx(NORMAL, "\nIDN (ICC Dynamic Number) [%zu] %s", idn_tlv->len, sprint_hex_inrow(idn_tlv->value, idn_tlv->len));
+                       PrintAndLogEx(NORMAL, "DDA verified OK.");
+                       tlvdb_add(tlv, idn_db);
+                       tlvdb_free(idn_db);
+               } else {
+                       PrintAndLogEx(NORMAL, "\nERROR: DDA verify error");
+                       tlvdb_free(idn_db);
+
+                       emv_pk_free(pk);
+                       emv_pk_free(issuer_pk);
+                       emv_pk_free(icc_pk);
+                       return 9;
+               }
        }
+
+       emv_pk_free(pk);
+       emv_pk_free(issuer_pk);
+       emv_pk_free(icc_pk);
+       return 0;
+}
+
+int trCDA(struct tlvdb *tlv, struct tlvdb *ac_tlv, struct tlv *pdol_data_tlv, struct tlv *ac_data_tlv) {
+
+       struct emv_pk *pk = get_ca_pk(tlv);
+       if (!pk) {
+               PrintAndLogEx(WARNING, "Error: Key not found. Exit.");
+               return 2;
+       }
+
+       const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
+       if (!sda_tlv || sda_tlv->len < 1) {
+               PrintAndLogEx(WARNING, "Error: Can't find input list for Offline Data Authentication. Exit.");
+               emv_pk_free(pk);
+               return 3;
+       }
+
+       struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
+       if (!issuer_pk) {
+               PrintAndLogEx(WARNING, "Error: Issuer certificate not found. Exit.");
+               emv_pk_free(pk);
+               return 2;
+       }
+       PrintAndLogEx(SUCCESS, "Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
+                       issuer_pk->rid[0],
+                       issuer_pk->rid[1],
+                       issuer_pk->rid[2],
+                       issuer_pk->rid[3],
+                       issuer_pk->rid[4],
+                       issuer_pk->index,
+                       issuer_pk->serial[0],
+                       issuer_pk->serial[1],
+                       issuer_pk->serial[2]
+                       );
+
+       struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlv, sda_tlv);
+       if (!icc_pk) {
+               PrintAndLogEx(WARNING, "Error: ICC certificate not found. Exit.");
+               emv_pk_free(pk);
+               emv_pk_free(issuer_pk);
+               return 2;
+       }
+       PrintAndLogEx(SUCCESS, "ICC PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
+                       icc_pk->rid[0],
+                       icc_pk->rid[1],
+                       icc_pk->rid[2],
+                       icc_pk->rid[3],
+                       icc_pk->rid[4],
+                       icc_pk->index,
+                       icc_pk->serial[0],
+                       icc_pk->serial[1],
+                       icc_pk->serial[2]
+                       );
+
+       struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
+       if (dac_db) {
+               const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
+               PrintAndLogEx(NORMAL, "SSAD verified OK. (%02hhx:%02hhx)", dac_tlv->value[0], dac_tlv->value[1]);
+               tlvdb_add(tlv, dac_db);
+       } else {
+               PrintAndLogEx(WARNING, "Error: SSAD verify error");
+               emv_pk_free(pk);
+               emv_pk_free(issuer_pk);
+               emv_pk_free(icc_pk);
+               return 4;
+       }
+
+       PrintAndLogEx(NORMAL, "\n* * Check Signed Dynamic Application Data (SDAD)");
+       struct tlvdb *idn_db = emv_pki_perform_cda_ex(icc_pk, tlv, ac_tlv,
+                       pdol_data_tlv, // pdol
+                       ac_data_tlv,   // cdol1
+                       NULL,          // cdol2
+                       true);
+       if (idn_db) {
+               const struct tlv *idn_tlv = tlvdb_get(idn_db, 0x9f4c, NULL);
+               PrintAndLogEx(NORMAL, "\nIDN (ICC Dynamic Number) [%zu] %s", idn_tlv->len, sprint_hex_inrow(idn_tlv->value, idn_tlv->len));
+               PrintAndLogEx(NORMAL, "CDA verified OK.");
+               tlvdb_add(tlv, idn_db);
+       } else {
+               PrintAndLogEx(NORMAL, "\nERROR: CDA verify error");
+       }
+
+       emv_pk_free(pk);
+       emv_pk_free(issuer_pk);
+       emv_pk_free(icc_pk);
+       return 0;
+}
+
+int RecoveryCertificates(struct tlvdb *tlvRoot, json_t *root) {
+
+       struct emv_pk *pk = get_ca_pk(tlvRoot);
+       if (!pk) {
+               PrintAndLog("ERROR: Key not found. Exit.");
+               return 1;
+       }
+
+       struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlvRoot);
+       if (!issuer_pk) {
+               emv_pk_free(pk);
+               PrintAndLog("WARNING: Issuer certificate not found. Exit.");
+               return 2;
+       }
+       PrintAndLogEx(SUCCESS, "Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx",
+                       issuer_pk->rid[0],
+                       issuer_pk->rid[1],
+                       issuer_pk->rid[2],
+                       issuer_pk->rid[3],
+                       issuer_pk->rid[4],
+                       issuer_pk->index,
+                       issuer_pk->serial[0],
+                       issuer_pk->serial[1],
+                       issuer_pk->serial[2]
+                       );
+
+       JsonSaveBufAsHex(root, "$.ApplicationData.RID", issuer_pk->rid, 5);
+
+       char *issuer_pk_c = emv_pk_dump_pk(issuer_pk);
+       JsonSaveStr(root, "$.ApplicationData.IssuerPublicKeyDec", issuer_pk_c);
+       JsonSaveBufAsHex(root, "$.ApplicationData.IssuerPublicKeyModulus", issuer_pk->modulus, issuer_pk->mlen);
+       free(issuer_pk_c);
+
+       struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlvRoot, NULL);
+       if (!icc_pk) {
+               emv_pk_free(pk);
+               emv_pk_free(issuer_pk);
+               PrintAndLogEx(WARNING, "WARNING: ICC certificate not found. Exit.");
+               return 2;
+       }
+       PrintAndLogEx(SUCCESS, "ICC PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
+                       icc_pk->rid[0],
+                       icc_pk->rid[1],
+                       icc_pk->rid[2],
+                       icc_pk->rid[3],
+                       icc_pk->rid[4],
+                       icc_pk->index,
+                       icc_pk->serial[0],
+                       icc_pk->serial[1],
+                       icc_pk->serial[2]
+                       );
+
+       char *icc_pk_c = emv_pk_dump_pk(icc_pk);
+       JsonSaveStr(root, "$.ApplicationData.ICCPublicKeyDec", icc_pk_c);
+       JsonSaveBufAsHex(root, "$.ApplicationData.ICCPublicKeyModulus", icc_pk->modulus, icc_pk->mlen);
+       free(issuer_pk_c);
+
+       return 0;
 }
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