X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/385e4b501932c96cd37bc3106b6237f34c404e0f..ece38ef311b28eefb1d716937139aad9ee00985c:/client/emv/emvcore.c?ds=inline diff --git a/client/emv/emvcore.c b/client/emv/emvcore.c index 36438413..53c1c611 100644 --- a/client/emv/emvcore.c +++ b/client/emv/emvcore.c @@ -10,53 +10,81 @@ #include "emvcore.h" +#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 [] = { +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; const char* aid; } TAIDList; -static const TAIDList AIDlist [] = { +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 + { 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 + { 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, "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" }, @@ -65,19 +93,48 @@ static const TAIDList AIDlist [] = { { 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" }, + { 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 + { 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, "A0000001544442" }, // Banricompras Debito - Banrisul - Banco do Estado do Rio Grande do SUL - S.A. - { CV_OTHER, "F0000000030001" }, // BRADESCO - { CV_OTHER, "A0000005241010" }, // RuPay - RuPay - { CV_OTHER, "D5780000021010" } // Bankaxept - Bankaxept + { 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 Oilâs 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); @@ -86,6 +143,12 @@ 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) @@ -97,8 +160,8 @@ enum CardPSVendor GetCardPSVendor(uint8_t * AID, size_t AIDlen) { if (strncmp(AIDlist[i].aid, buf, strlen(AIDlist[i].aid)) == 0){ return AIDlist[i].vendor; } - } - + } + return CV_NA; } @@ -111,23 +174,25 @@ static bool print_cb(void *data, const struct tlv *tlv, int level, bool is_leaf) 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 { - PrintAndLog("TLV ERROR: Can't parse response as TLV tree."); + PrintAndLogEx(WARNING, "TLV ERROR: Can't parse response as TLV tree."); } + return false; } void TLVPrintFromTLVLev(struct tlvdb *tlv, int level) { - if (!tlv) + if (!tlv) return; - + tlvdb_visit(tlv, print_cb, NULL, level); } @@ -136,29 +201,29 @@ void TLVPrintFromTLV(struct tlvdb *tlv) { } void TLVPrintAIDlistFromSelectTLV(struct tlvdb *tlv) { - PrintAndLog("|------------------|--------|-------------------------|"); - PrintAndLog("| AID |Priority| Name |"); - PrintAndLog("|------------------|--------|-------------------------|"); + PrintAndLogEx(NORMAL, "|------------------|--------|-------------------------|"); + PrintAndLogEx(NORMAL, "| AID |Priority| Name |"); + PrintAndLogEx(NORMAL, "|------------------|--------|-------------------------|"); struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f); if (!ttmp) - PrintAndLog("| none |"); - + 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; - PrintAndLog("|%s| %s |%s|", - sprint_hex_inrow_ex(tgAID->value, tgAID->len, 18), - (tgPrio) ? sprint_hex(tgPrio->value, 1) : " ", + 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); } - PrintAndLog("|------------------|--------|-------------------------|"); + PrintAndLogEx(NORMAL, "|------------------|--------|-------------------------|"); } struct tlvdb *GetPANFromTrack2(const struct tlv *track2) { @@ -172,19 +237,19 @@ struct tlvdb *GetPANFromTrack2(const struct tlv *track2) { 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); } @@ -195,13 +260,13 @@ struct tlvdb *GetdCVVRawFromTrack2(const struct tlv *track2) { 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; @@ -215,49 +280,74 @@ struct tlvdb *GetdCVVRawFromTrack2(const struct tlv *track2) { 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(bool ActivateField, bool LeaveFieldON, sAPDU apdu, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) { - uint8_t data[APDU_RES_LEN] = {0}; +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; + if (sw) *sw = 0; uint16_t isw = 0; - - if (ActivateField) - DropField(); - - // COMPUTE APDU - memcpy(data, &apdu, 5); - if (apdu.data) - memcpy(&data[5], apdu.data, apdu.Lc); - + int res = 0; + + if (ActivateField) { + DropFieldEx( channel ); + msleep(50); + } + if (APDULogging) - PrintAndLog(">>>> %s", sprint_hex(data, 6 + apdu.Lc)); + 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 - // 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); - if (res) { return res; } if (APDULogging) - PrintAndLog("<<<< %s", sprint_hex(Result, *ResultLen)); + 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) - PrintAndLog("APDU(%02x%02x) ERROR: [%4X] %s", apdu.CLA, apdu.INS, isw, GetAPDUCodeDescription(*sw >> 8, *sw & 0xff)); - return 5; + 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 @@ -265,20 +355,40 @@ int EMVExchangeEx(bool ActivateField, bool LeaveFieldON, sAPDU apdu, uint8_t *Re struct tlvdb *t = tlvdb_parse_multi(Result, *ResultLen); tlvdb_add(tlv, t); } - + return 0; } -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); +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(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); +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(bool ActivateField, bool LeaveFieldON, uint8_t PSENum, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw) { - uint8_t buf[APDU_AID_LEN] = {0}; +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; @@ -287,150 +397,249 @@ int EMVSelectPSE(bool ActivateField, bool LeaveFieldON, uint8_t PSENum, uint8_t 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(ActivateField, LeaveFieldON, buf, len, Result, MaxResultLen, ResultLen, sw, NULL); + 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(bool ActivateField, bool LeaveFieldON, bool decodeTLV, struct tlvdb *tlv) { - uint8_t data[APDU_RES_LEN] = {0}; + +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(ActivateField, true, 2, data, sizeof(data), &datalen, &sw); + 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) { - int retrycnt = 0; - struct tlvdb *ttmp = tlvdb_find_path(t, (tlv_tag_t[]){0x6f, 0xa5, 0xbf0c, 0x61, 0x00}); - if (!ttmp) - PrintAndLog("PPSE don't have records."); - - while (ttmp) { - const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x4f, NULL); - if (tgAID) { - res = EMVSelect(false, true, (uint8_t *)tgAID->value, tgAID->len, data, sizeof(data), &datalen, &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) { - PrintAndLog("Exit..."); - return 1; - } - - retrycnt = 0; - PrintAndLog("Retry failed [%s]. Skiped...", sprint_hex_inrow(tgAID->value, tgAID->len)); - } - - // next element - ttmp = tlvdb_find_next(ttmp, 0x61); - continue; + // 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; } - retrycnt = 0; - // all is ok if (decodeTLV){ - PrintAndLog("%s:", sprint_hex_inrow(tgAID->value, tgAID->len)); - TLVPrintFromBuffer(data, datalen); + 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); } } - - ttmp = tlvdb_find_next(ttmp, 0x61); } + + // 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 { - PrintAndLog("PPSE ERROR: Can't get TLV from response."); - } + PrintAndLogEx(WARNING, "%s ERROR: Can't get TLV from response.", PSE_or_PPSE); + } } else { - PrintAndLog("PPSE ERROR: Can't select PPSE AID. Error: %d", res); + PrintAndLogEx(WARNING, "%s ERROR: Can't select PPSE AID. Error: %d", PSE_or_PPSE, res); } - - if(!LeaveFieldON) - DropField(); - + + if (!LeaveFieldON) + DropFieldEx( channel ); + return res; } -int EMVSearch(bool ActivateField, bool LeaveFieldON, bool decodeTLV, struct tlvdb *tlv) { - uint8_t aidbuf[APDU_AID_LEN] = {0}; +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_RES_LEN] = {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((i == 0) ? ActivateField : false, (i == AIDlistLen - 1) ? LeaveFieldON : true, aidbuf, aidlen, data, sizeof(data), &datalen, &sw, tlv); + res = EMVSelect(channel, (i == 0) ? ActivateField : false, 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 { - // card select error, proxmark error - if (res == 1) { - PrintAndLog("Exit..."); + // (1) - card select error, (4) reply timeout, (200) - result length = 0 + if (res == 1 || res == 4 || res == 200) { + if (!LeaveFieldON) + DropFieldEx(channel); + PrintAndLogEx(WARNING, "Exit..."); return 1; } - + retrycnt = 0; - PrintAndLog("Retry failed [%s]. Skiped...", AIDlist[i].aid); + PrintAndLogEx(FAILED, "Retry failed [%s]. Skipped...", AIDlist[i].aid); } continue; } retrycnt = 0; - + if (res) continue; - - if (decodeTLV){ - PrintAndLog("%s:", AIDlist[i].aid); + + if (!datalen) + continue; + + if (decodeTLV) { + PrintAndLogEx(SUCCESS, "%s", AIDlist[i].aid); TLVPrintFromBuffer(data, datalen); } } + if (!LeaveFieldON) + DropFieldEx(channel); + 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); + 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; } @@ -438,58 +647,510 @@ int EMVSelectApplication(struct tlvdb *tlv, uint8_t *AID, size_t *AIDlen) { // takes the first application from list wo priority if (!*AIDlen) { memcpy(AID, tgAID->value, tgAID->len); - *AIDlen = tgAID->len; + *AIDlen = tgAID->len; } } - + ttmp = tlvdb_find_next(ttmp, 0x6f); } - + return 0; } -int EMVGPO(bool LeaveFieldON, uint8_t *PDOL, size_t PDOLLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) { - return EMVExchange(LeaveFieldON, (sAPDU){0x80, 0xa8, 0x00, 0x00, PDOLLen, PDOL}, Result, MaxResultLen, ResultLen, sw, tlv); +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(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 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(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) { - return EMVExchange(LeaveFieldON, (sAPDU){0x80, 0xae, RefControl, 0x00, CDOLLen, CDOL}, Result, MaxResultLen, ResultLen, sw, tlv); +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(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 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 MSCComputeCryptoChecksum(bool LeaveFieldON, uint8_t *UDOL, uint8_t UDOLlen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) { - return EMVExchange(LeaveFieldON, (sAPDU){0x80, 0x2a, 0x8e, 0x80, UDOLlen, UDOL}, Result, MaxResultLen, ResultLen, sw, tlv); +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); } -// Authentication -int trSDA(uint8_t *AID, size_t AIDlen, struct tlvdb *tlv) { - if (AIDlen < 5) - return 1; - - // Get public key index (0x8F) - //int PubKeyIndx = 0; - - // Get public key from key storage - // GetPublicKey(AID(0..5), PubKeyIndx) - - // Processing of Issuer Public Key Certificate (0x90) - //Certificate = - - // check issuer public key certificate - - // Verification of Signed Static Application Data (SSAD) (0x93) - - // get 9F4A Static Data Authentication Tag List - - // set Data Auth Code (9F45) from SSAD - +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 { + 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; +}