X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/3962dce565fc63c0190d4570bfaf339ec32b7025..41bdfce385e2c614a55c3e13734c307c03b6ffed:/client/emv/emvcore.c diff --git a/client/emv/emvcore.c b/client/emv/emvcore.c index 78a30206..93235f5e 100644 --- a/client/emv/emvcore.c +++ b/client/emv/emvcore.c @@ -9,13 +9,27 @@ //----------------------------------------------------------------------------- #include "emvcore.h" + +#include #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 [] = { @@ -129,6 +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) @@ -267,39 +287,38 @@ struct tlvdb *GetdCVVRawFromTrack2(const struct tlv *track2) { } -static 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) +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 && channel == ECC_CONTACTLESS) { - DropField(); + 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 + + Le(?IncludeLe) res = ExchangeAPDU14a(apdu, apdu_len, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen); - if (res) { - return res; - } break; case ECC_CONTACT: - //int ExchangeAPDUSC(uint8_t *datain, int datainlen, bool activateCard, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen); -#ifdef WITH_SMARTCARD res = ExchangeAPDUSC(apdu, apdu_len, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen); - if (res) { - return res; - } -#endif 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)); @@ -308,13 +327,18 @@ static int EMVExchangeEx(EMVCommandChannel channel, bool ActivateField, bool Lea return 200; } -/* if (Result[*ResultLen-2] == 0x61) { + if (Result[*ResultLen-2] == 0x61) { uint8_t La = Result[*ResultLen-1]; uint8_t get_response[5] = {apdu[0], ISO7816_GET_RESPONSE, 0x00, 0x00, La}; - return EMVExchangeEx(channel, false, LeaveFieldON, get_response, sizeof(get_response), Result, MaxResultLen, ResultLen, sw, tlv); - }*/ + 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; @@ -335,19 +359,18 @@ static int EMVExchangeEx(EMVCommandChannel channel, bool ActivateField, bool Lea return 0; } -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) +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 && apdu[4] == 0) { - // there is no Lc but an Le == 0 already + 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 { - if (apdu[1] != 0xc0) - apdu_len++; // no Le, add Le = 0x00 because some vendors require it for contactless + 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); @@ -387,11 +410,76 @@ int EMVSelectPSE(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldO 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"; @@ -399,49 +487,72 @@ int EMVSearchPSE(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldO 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) - PrintAndLogEx(FAILED, "%s doesn't have any records.", PSE_or_PPSE); - - while (ttmp) { - const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x4f, NULL); - if (tgAID) { - res = EMVSelect(channel, 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) { - PrintAndLogEx(WARNING, "Exit..."); - return 1; - } - - retrycnt = 0; - PrintAndLogEx(NORMAL, "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){ - PrintAndLogEx(NORMAL, "%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 { @@ -451,8 +562,8 @@ int EMVSearchPSE(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldO PrintAndLogEx(WARNING, "%s ERROR: Can't select PPSE AID. Error: %d", PSE_or_PPSE, res); } - if(!LeaveFieldON && channel == ECC_CONTACTLESS) - DropField(); + if (!LeaveFieldON) + DropFieldEx( channel ); return res; } @@ -608,7 +719,7 @@ struct emv_pk *get_ca_pk(struct tlvdb *db) { 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]); + 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]); } @@ -650,7 +761,7 @@ int trSDA(struct tlvdb *tlv) { 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. (%02hhx:%02hhx)\n", dac_tlv->value[0], dac_tlv->value[1]); + 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); @@ -679,12 +790,12 @@ int trDDA(EMVCommandChannel channel, bool decodeTLV, struct tlvdb *tlv) { } const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL); - if (!sda_tlv || sda_tlv->len < 1) { +/* 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); @@ -707,7 +818,7 @@ int trDDA(EMVCommandChannel channel, bool decodeTLV, struct tlvdb *tlv) { if (!icc_pk) { emv_pk_free(pk); emv_pk_free(issuer_pk); - PrintAndLogEx(WARNING, "Error: ICC setrificate not found. Exit."); + 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", @@ -722,21 +833,25 @@ int trDDA(EMVCommandChannel channel, bool decodeTLV, struct tlvdb *tlv) { icc_pk->serial[2] ); - 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. "); + 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(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] - ); + PrintAndLogEx(INFO, "ICC PE PK (PIN Encipherment Public Key Certificate) not found.\n"); } // 9F4B: Signed Dynamic Application Data @@ -778,7 +893,7 @@ int trDDA(EMVCommandChannel channel, bool decodeTLV, struct tlvdb *tlv) { 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. (%02hhx:%02hhx)\n", dac_tlv->value[0], dac_tlv->value[1]); + 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"); @@ -822,9 +937,16 @@ int trDDA(EMVCommandChannel channel, bool decodeTLV, struct tlvdb *tlv) { 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, len - 2, buf + 2); + 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); @@ -917,7 +1039,7 @@ int trCDA(struct tlvdb *tlv, struct tlvdb *ac_tlv, struct tlv *pdol_data_tlv, st struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlv, sda_tlv); if (!icc_pk) { - PrintAndLogEx(WARNING, "Error: ICC setrificate not found. Exit."); + PrintAndLogEx(WARNING, "Error: ICC certificate not found. Exit."); emv_pk_free(pk); emv_pk_free(issuer_pk); return 2;