X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/e464f6225860a0965e266732328d9d0948607c31..87fc2dad14a1ab0103140c5041c0ae78cead5a52:/client/emv/emvcore.c diff --git a/client/emv/emvcore.c b/client/emv/emvcore.c index 9264b110..825e9bf9 100644 --- a/client/emv/emvcore.c +++ b/client/emv/emvcore.c @@ -10,9 +10,103 @@ #include "emvcore.h" -static bool print_cb(void *data, const struct tlv *tlv) { - emv_tag_dump(tlv, stdout); - dump_buffer(tlv->value, tlv->len, stdout); +// Got from here. Thanks) +// https://eftlab.co.uk/index.php/site-map/knowledge-base/211-emv-aid-rid-pix +static const char *PSElist [] = { + "325041592E5359532E4444463031", // 2PAY.SYS.DDF01 - Visa Proximity Payment System Environment - PPSE + "315041592E5359532E4444463031" // 1PAY.SYS.DDF01 - Visa Payment System Environment - PSE +}; +static const size_t PSElistLen = sizeof(PSElist)/sizeof(char*); + +typedef struct { + enum CardPSVendor vendor; + const char* aid; +} TAIDList; + +static const TAIDList AIDlist [] = { + // Visa International + { CV_VISA, "A00000000305076010"}, // VISA ELO Credit + { CV_VISA, "A0000000031010" }, // VISA Debit/Credit (Classic) + { CV_VISA, "A000000003101001" }, // VISA Credit + { CV_VISA, "A000000003101002" }, // VISA Debit + { CV_VISA, "A0000000032010" }, // VISA Electron + { CV_VISA, "A0000000032020" }, // VISA + { CV_VISA, "A0000000033010" }, // VISA Interlink + { CV_VISA, "A0000000034010" }, // VISA Specific + { CV_VISA, "A0000000035010" }, // VISA Specific + { CV_VISA, "A0000000036010" }, // Domestic Visa Cash Stored Value + { CV_VISA, "A0000000036020" }, // International Visa Cash Stored Value + { CV_VISA, "A0000000038002" }, // VISA Auth, VisaRemAuthen EMV-CAP (DPA) + { CV_VISA, "A0000000038010" }, // VISA Plus + { CV_VISA, "A0000000039010" }, // VISA Loyalty + { CV_VISA, "A000000003999910" }, // VISA Proprietary ATM + // Visa USA + { CV_VISA, "A000000098" }, // Debit Card + { CV_VISA, "A0000000980848" }, // Debit Card + // Mastercard International + { CV_MASTERCARD, "A00000000401" }, // MasterCard PayPass + { CV_MASTERCARD, "A0000000041010" }, // MasterCard Credit + { CV_MASTERCARD, "A00000000410101213" }, // MasterCard Credit + { CV_MASTERCARD, "A00000000410101215" }, // MasterCard Credit + { CV_MASTERCARD, "A0000000042010" }, // MasterCard Specific + { CV_MASTERCARD, "A0000000043010" }, // MasterCard Specific + { CV_MASTERCARD, "A0000000043060" }, // Maestro (Debit) + { CV_MASTERCARD, "A000000004306001" }, // Maestro (Debit) + { CV_MASTERCARD, "A0000000044010" }, // MasterCard Specific + { CV_MASTERCARD, "A0000000045010" }, // MasterCard Specific + { CV_MASTERCARD, "A0000000046000" }, // Cirrus + { CV_MASTERCARD, "A0000000048002" }, // SecureCode Auth EMV-CAP + { CV_MASTERCARD, "A0000000049999" }, // MasterCard PayPass + // American Express + { CV_AMERICANEXPRESS, "A000000025" }, + { CV_AMERICANEXPRESS, "A0000000250000" }, + { CV_AMERICANEXPRESS, "A00000002501" }, + { CV_AMERICANEXPRESS, "A000000025010402" }, + { CV_AMERICANEXPRESS, "A000000025010701" }, + { CV_AMERICANEXPRESS, "A000000025010801" }, + // Groupement des Cartes Bancaires "CB" + { CV_CB, "A0000000421010" }, // Cartes Bancaire EMV Card + { CV_CB, "A0000000422010" }, + { CV_CB, "A0000000423010" }, + { CV_CB, "A0000000424010" }, + { CV_CB, "A0000000425010" }, + // JCB CO., LTD. + { CV_JCB, "A00000006510" }, // JCB + { CV_JCB, "A0000000651010" }, // JCB J Smart Credit + // 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 +}; +static const size_t AIDlistLen = sizeof(AIDlist)/sizeof(TAIDList); + +static bool APDULogging = false; +void SetAPDULogging(bool logging) { + APDULogging = logging; +} + +enum CardPSVendor GetCardPSVendor(uint8_t * AID, size_t AIDlen) { + char buf[100] = {0}; + if (AIDlen < 1) + return CV_NA; + + hex_to_buffer((uint8_t *)buf, AID, AIDlen, sizeof(buf) - 1, 0, 0, true); + + for(int i = 0; i < AIDlistLen; i ++) { + if (strncmp(AIDlist[i].aid, buf, strlen(AIDlist[i].aid)) == 0){ + return AIDlist[i].vendor; + } + } + + return CV_NA; +} + +static bool print_cb(void *data, const struct tlv *tlv, int level, bool is_leaf) { + emv_tag_dump(tlv, stdout, level); + if (is_leaf) { + dump_buffer(tlv->value, tlv->len, stdout, level); + } return true; } @@ -21,11 +115,355 @@ void TLVPrintFromBuffer(uint8_t *data, int datalen) { struct tlvdb *t = NULL; t = tlvdb_parse_multi(data, datalen); if (t) { - PrintAndLog("TLV decoded:"); + PrintAndLog("-------------------- TLV decoded --------------------"); - tlvdb_visit(t, print_cb, NULL); + tlvdb_visit(t, print_cb, NULL, 0); tlvdb_free(t); } else { PrintAndLog("TLV ERROR: Can't parse response as TLV tree."); } } + +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) { + PrintAndLog("|------------------|--------|-------------------------|"); + PrintAndLog("| AID |Priority| Name |"); + PrintAndLog("|------------------|--------|-------------------------|"); + + struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f); + if (!ttmp) + PrintAndLog("| 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) : " ", + (tgName) ? sprint_ascii_ex(tgName->value, tgName->len, 25) : " "); + + ttmp = tlvdb_find_next(ttmp, 0x6f); + } + + PrintAndLog("|------------------|--------|-------------------------|"); +} + +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(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}; + + *ResultLen = 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); + + if (APDULogging) + PrintAndLog(">>>> %s", sprint_hex(data, 6 + apdu.Lc)); + + // 6 byes + data = INS + CLA + P1 + P2 + Lc + + Le + int res = ExchangeAPDU14a(data, 6 + apdu.Lc, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen); + + if (APDULogging) + PrintAndLog("<<<< %s", sprint_hex(Result, *ResultLen)); + + 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; + } + + // add to tlv tree + if (tlv) { + 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); +} + +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 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}; + *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(ActivateField, LeaveFieldON, buf, len, Result, MaxResultLen, ResultLen, sw, NULL); + + return res; +} + +int EMVSearchPSE(bool ActivateField, bool LeaveFieldON, bool decodeTLV, struct tlvdb *tlv) { + uint8_t data[APDU_RES_LEN] = {0}; + size_t datalen = 0; + uint16_t sw = 0; + int res; + + // select PPSE + res = EMVSelectPSE(ActivateField, true, 2, data, sizeof(data), &datalen, &sw); + + if (!res){ + 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; + } + retrycnt = 0; + + // all is ok + if (decodeTLV){ + PrintAndLog("%s:", sprint_hex_inrow(tgAID->value, tgAID->len)); + TLVPrintFromBuffer(data, datalen); + } + } + + ttmp = tlvdb_find_next(ttmp, 0x61); + } + + tlvdb_free(t); + } else { + PrintAndLog("PPSE ERROR: Can't get TLV from response."); + } + } else { + PrintAndLog("PPSE ERROR: Can't select PPSE AID. Error: %d", res); + } + + if(!LeaveFieldON) + DropField(); + + return res; +} + +int EMVSearch(bool ActivateField, bool LeaveFieldON, bool decodeTLV, struct tlvdb *tlv) { + uint8_t aidbuf[APDU_AID_LEN] = {0}; + int aidlen = 0; + uint8_t data[APDU_RES_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); + // 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..."); + return 1; + } + + retrycnt = 0; + PrintAndLog("Retry failed [%s]. Skiped...", AIDlist[i].aid); + } + continue; + } + retrycnt = 0; + + if (res) + continue; + + if (decodeTLV){ + PrintAndLog("%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(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 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 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 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 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); +}