+ 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;
+ }
projects / proxmark3-svn / blobdiff