fix - some card cant reset so quick. (#713)
[proxmark3-svn] / client / emv / emvcore.c
index 36438413a25882f447e96a4c3aa55ed736253e04..98ecc5b04ba8d43c4ca4c4965d0782682eb2b8fb 100644 (file)
@@ -9,6 +9,8 @@
 //-----------------------------------------------------------------------------
 
 #include "emvcore.h"
+#include "emvjson.h"
+#include "util_posix.h"
 
 // Got from here. Thanks)
 // https://eftlab.co.uk/index.php/site-map/knowledge-base/211-emv-aid-rid-pix
@@ -16,7 +18,14 @@ 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*);
+//static const size_t PSElistLen = sizeof(PSElist)/sizeof(char*);
+
+char *TransactionTypeStr[] = {
+       "MSD",
+       "VSDC",
+       "qVCDCMCHIP",
+       "CDA"
+};
 
 typedef struct {
        enum CardPSVendor vendor;
@@ -221,15 +230,17 @@ struct tlvdb *GetdCVVRawFromTrack2(const struct tlv *track2) {
   return tlvdb_fixed(0x02, dCVVlen, dCVV);
 }
 
-int EMVExchangeEx(bool ActivateField, bool LeaveFieldON, sAPDU apdu, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
+int EMVExchangeEx(bool ActivateField, bool LeaveFieldON, sAPDU apdu, bool IncludeLe, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
        uint8_t data[APDU_RES_LEN] = {0};
 
        *ResultLen = 0;
        if (sw) *sw = 0;
        uint16_t isw = 0;
        
-       if (ActivateField)
+       if (ActivateField){
                DropField();
+               msleep(50);
+       }
        
        // COMPUTE APDU
        memcpy(data, &apdu, 5);
@@ -237,10 +248,10 @@ int EMVExchangeEx(bool ActivateField, bool LeaveFieldON, sAPDU apdu, uint8_t *Re
                memcpy(&data[5], apdu.data, apdu.Lc);
        
        if (APDULogging)
-               PrintAndLog(">>>> %s", sprint_hex(data, 6 + apdu.Lc));
+               PrintAndLog(">>>> %s", sprint_hex(data, (IncludeLe?6:5) + apdu.Lc));
 
-       // 6 byes + data = INS + CLA + P1 + P2 + Lc + <data = Nc> + Le
-       int res = ExchangeAPDU14a(data, 6 + apdu.Lc, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen);
+       // 6 byes + data = INS + CLA + P1 + P2 + Lc + <data = Nc> + Le(?IncludeLe)
+       int res = ExchangeAPDU14a(data, (IncludeLe?6:5) + apdu.Lc, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen);
        
        if (res) {
                return res;
@@ -270,11 +281,11 @@ int EMVExchangeEx(bool ActivateField, bool LeaveFieldON, sAPDU apdu, uint8_t *Re
 }
 
 int EMVExchange(bool LeaveFieldON, sAPDU apdu, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
-       return EMVExchangeEx(false, LeaveFieldON, apdu, Result, MaxResultLen, ResultLen, sw, tlv);
+       return EMVExchangeEx(false, LeaveFieldON, apdu, true, Result, MaxResultLen, ResultLen, sw, tlv);
 }
 
 int EMVSelect(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) {
-       return EMVExchangeEx(ActivateField, LeaveFieldON, (sAPDU){0x00, 0xa4, 0x04, 0x00, AIDLen, AID}, Result, MaxResultLen, ResultLen, sw, tlv);
+       return EMVExchangeEx(ActivateField, LeaveFieldON, (sAPDU){0x00, 0xa4, 0x04, 0x00, AIDLen, AID}, true, Result, MaxResultLen, ResultLen, sw, tlv);
 }
 
 int EMVSelectPSE(bool ActivateField, bool LeaveFieldON, uint8_t PSENum, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw) {
@@ -453,7 +464,12 @@ int EMVGPO(bool LeaveFieldON, uint8_t *PDOL, size_t PDOLLen, uint8_t *Result, si
 }
 
 int EMVReadRecord(bool LeaveFieldON, uint8_t SFI, uint8_t SFIrec, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
-       return EMVExchange(LeaveFieldON, (sAPDU){0x00, 0xb2, SFIrec, (SFI << 3) | 0x04, 0, NULL}, Result, MaxResultLen, ResultLen, sw, tlv);
+       int res = EMVExchange(LeaveFieldON, (sAPDU){0x00, 0xb2, SFIrec, (SFI << 3) | 0x04, 0, NULL}, Result, MaxResultLen, ResultLen, sw, tlv);
+       if (*sw == 0x6700) {
+               PrintAndLog(">>> trying to reissue command withouth Le...");
+               res = EMVExchangeEx(false, LeaveFieldON, (sAPDU){0x00, 0xb2, SFIrec, (SFI << 3) | 0x04, 0, NULL}, false, Result, MaxResultLen, ResultLen, sw, tlv);
+       }
+       return res;
 }
 
 int EMVAC(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) {
@@ -461,7 +477,16 @@ int EMVAC(bool LeaveFieldON, uint8_t RefControl, uint8_t *CDOL, size_t CDOLLen,
 }
 
 int EMVGenerateChallenge(bool LeaveFieldON, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
-       return EMVExchange(LeaveFieldON, (sAPDU){0x00, 0x84, 0x00, 0x00, 0x00, NULL}, Result, MaxResultLen, ResultLen, sw, tlv);
+       int res = EMVExchange(LeaveFieldON, (sAPDU){0x00, 0x84, 0x00, 0x00, 0x00, NULL}, Result, MaxResultLen, ResultLen, sw, tlv);
+       if (*sw == 0x6700) {
+               PrintAndLog(">>> trying to reissue command withouth Le...");
+               res = EMVExchangeEx(false, LeaveFieldON, (sAPDU){0x00, 0x84, 0x00, 0x00, 0x00, NULL}, false, Result, MaxResultLen, ResultLen, sw, tlv);
+       }
+       return res;
+}
+
+int EMVInternalAuthenticate(bool LeaveFieldON, uint8_t *DDOL, size_t DDOLLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
+       return EMVExchange(LeaveFieldON, (sAPDU){0x00, 0x88, 0x00, 0x00, DDOLLen, DDOL}, Result, MaxResultLen, ResultLen, sw, tlv);
 }
 
 int MSCComputeCryptoChecksum(bool LeaveFieldON, uint8_t *UDOL, uint8_t UDOLlen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
@@ -469,27 +494,429 @@ int MSCComputeCryptoChecksum(bool LeaveFieldON, uint8_t *UDOL, uint8_t UDOLlen,
 }
 
 // Authentication 
-int trSDA(uint8_t *AID, size_t AIDlen, struct tlvdb *tlv) {
-       if (AIDlen < 5) 
-               return 1;
+static 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;
+
+       PrintAndLog("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) {
+               PrintAndLog("ERROR: Key not found. Exit.");
+               return 2;
+       }
        
-       // Get public key index (0x8F)
-       //int PubKeyIndx = 0; 
+       struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
+       if (!issuer_pk) {
+               emv_pk_free(pk);
+               PrintAndLog("ERROR: Issuer certificate not found. Exit.");
+               return 2;
+       }
+
+       PrintAndLog("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);
+               PrintAndLog("ERROR: Can't find input list for Offline Data Authentication. Exit.");
+               return 3;
+       }
        
-       // Get public key from key storage
-       // GetPublicKey(AID(0..5), PubKeyIndx)
+       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);
+               PrintAndLog("SDA verified OK. (%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);
+               PrintAndLog("ERROR: SSAD verify error");
+               return 4;
+       }
        
-       // Processing of Issuer Public Key Certificate (0x90)
-       //Certificate = 
+       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(bool decodeTLV, struct tlvdb *tlv) {
+       uint8_t buf[APDU_RES_LEN] = {0};
+       size_t len = 0;
+       uint16_t sw = 0;
+
+       struct emv_pk *pk = get_ca_pk(tlv);
+       if (!pk) {
+               PrintAndLog("ERROR: Key not found. Exit.");
+               return 2;
+       }
+
+       const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
+       if (!sda_tlv || sda_tlv->len < 1) {
+               emv_pk_free(pk);
+               PrintAndLog("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);
+               PrintAndLog("ERROR: Issuer certificate not found. Exit.");
+               return 2;
+       }
+       printf("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);
+               PrintAndLog("ERROR: ICC setrificate not found. Exit.");
+               return 2;
+       }
+       printf("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 emv_pk *icc_pe_pk = emv_pki_recover_icc_pe_cert(issuer_pk, tlv);
+       if (!icc_pe_pk) {
+               PrintAndLog("WARNING: ICC PE PK recover error. ");
+       } else {
+               printf("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]
+                               );
+       }
+
+       // 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) {
+               PrintAndLog("\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) {
+                       PrintAndLog("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) {
+                       PrintAndLog("\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)) {
+                               PrintAndLog("ATC check OK.");
+                               PrintAndLog("fDDA (fast DDA) verified OK.");
+                       } else {
+                               PrintAndLog("ERROR: fDDA verified, but ATC in the certificate and ATC in the record not the same.");
+                       }
+               } else {
+                       PrintAndLog("\nERROR: fDDA (fast DDA) verify error");
+                       emv_pk_free(pk);
+                       emv_pk_free(issuer_pk);
+                       emv_pk_free(icc_pk);
+                       return 9;
+               }
+       } else {
+               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);
+                       printf("SDA verified OK. (%02hhx:%02hhx)\n", dac_tlv->value[0], dac_tlv->value[1]);
+                       tlvdb_add(tlv, dac_db);
+               } else {
+                       PrintAndLog("ERROR: SSAD verify error");
+                       emv_pk_free(pk);
+                       emv_pk_free(issuer_pk);
+                       emv_pk_free(icc_pk);
+                       return 4;
+               }
+               
+               PrintAndLog("\n* Calc DDOL");
+               const struct tlv *ddol_tlv = tlvdb_get(tlv, 0x9f49, NULL);
+               if (!ddol_tlv) {
+                       ddol_tlv = &default_ddol_tlv;
+                       PrintAndLog("DDOL [9f49] not found. Using default DDOL");
+               }
+
+               struct tlv *ddol_data_tlv = dol_process(ddol_tlv, tlv, 0);
+               if (!ddol_data_tlv) {
+                       PrintAndLog("ERROR: Can't create DDOL TLV");
+                       emv_pk_free(pk);
+                       emv_pk_free(issuer_pk);
+                       emv_pk_free(icc_pk);
+                       return 5;
+               }
+
+               PrintAndLog("DDOL data[%d]: %s", ddol_data_tlv->len, sprint_hex(ddol_data_tlv->value, ddol_data_tlv->len));
+
+               PrintAndLog("\n* Internal Authenticate");
+               int res = EMVInternalAuthenticate(true, (uint8_t *)ddol_data_tlv->value, ddol_data_tlv->len, buf, sizeof(buf), &len, &sw, NULL);
+               if (res) {      
+                       PrintAndLog("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 ) {
+                               PrintAndLog("ERROR: Internal Authenticate format1 parsing error. length=%d", len);
+                       } else {
+                               // 9f4b Signed Dynamic Application Data
+                               dda_db = tlvdb_fixed(0x9f4b, len - 2, buf + 2);
+                               tlvdb_add(tlv, dda_db);
+                               if (decodeTLV){
+                                       PrintAndLog("* * Decode response format 1:");
+                                       TLVPrintFromTLV(dda_db);
+                               }
+                       }
+               } else {
+                       dda_db = tlvdb_parse_multi(buf, len);
+                       if(!dda_db) {
+                               PrintAndLog("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) {
+                       PrintAndLog("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) {
+                       PrintAndLog("\nIDN (ICC Dynamic Number) [%zu] %s", idn_tlv->len, sprint_hex_inrow(idn_tlv->value, idn_tlv->len));
+                       PrintAndLog("DDA verified OK.");
+                       tlvdb_add(tlv, idn_db);
+                       tlvdb_free(idn_db);
+               } else {
+                       PrintAndLog("\nERROR: DDA verify error");
+                       tlvdb_free(idn_db);
+
+                       emv_pk_free(pk);
+                       emv_pk_free(issuer_pk);
+                       emv_pk_free(icc_pk);
+                       return 9;
+               }
+       }
        
-       // check issuer public key certificate
+       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) {
+               PrintAndLog("ERROR: Key not found. Exit.");
+               return 2;
+       }
+
+       const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
+       if (!sda_tlv || sda_tlv->len < 1) {
+               PrintAndLog("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) {
+               PrintAndLog("ERROR: Issuer certificate not found. Exit.");
+               emv_pk_free(pk);
+               return 2;
+       }
+       printf("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) {
+               PrintAndLog("ERROR: ICC setrificate not found. Exit.");
+               emv_pk_free(pk);
+               emv_pk_free(issuer_pk);
+               return 2;
+       }
+       printf("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);
+               PrintAndLog("SSAD verified OK. (%02hhx:%02hhx)", dac_tlv->value[0], dac_tlv->value[1]);
+               tlvdb_add(tlv, dac_db);
+       } else {
+               PrintAndLog("ERROR: SSAD verify error");
+               emv_pk_free(pk);
+               emv_pk_free(issuer_pk);
+               emv_pk_free(icc_pk);
+               return 4;
+       }
        
-       // Verification of Signed Static Application Data (SSAD) (0x93)
+       PrintAndLog("\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);
+               PrintAndLog("\nIDN (ICC Dynamic Number) [%zu] %s", idn_tlv->len, sprint_hex_inrow(idn_tlv->value, idn_tlv->len));
+               PrintAndLog("CDA verified OK.");
+               tlvdb_add(tlv, idn_db);
+       } else {
+               PrintAndLog("\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) {
        
-       // get 9F4A Static Data Authentication Tag List
+       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;
+       }
+       PrintAndLog("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);
+               PrintAndLog("WARNING: ICC certificate not found. Exit.");
+               return 2;
+       }
+       printf("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]
+                       );
        
-       // set Data Auth Code (9F45) from SSAD 
+       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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