mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2025-02-14 03:03:14 +08:00
469 lines
14 KiB
C
469 lines
14 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) 2017 Merlok
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// EMV core functions
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//-----------------------------------------------------------------------------
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#include "emvcore.h"
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// Got from here. Thanks)
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// https://eftlab.co.uk/index.php/site-map/knowledge-base/211-emv-aid-rid-pix
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static const char *PSElist [] = {
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"325041592E5359532E4444463031", // 2PAY.SYS.DDF01 - Visa Proximity Payment System Environment - PPSE
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"315041592E5359532E4444463031" // 1PAY.SYS.DDF01 - Visa Payment System Environment - PSE
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};
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static const size_t PSElistLen = sizeof(PSElist)/sizeof(char*);
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typedef struct {
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enum CardPSVendor vendor;
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const char* aid;
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} TAIDList;
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static const TAIDList AIDlist [] = {
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// Visa International
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{ CV_VISA, "A00000000305076010"}, // VISA ELO Credit
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{ CV_VISA, "A0000000031010" }, // VISA Debit/Credit (Classic)
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{ CV_VISA, "A000000003101001" }, // VISA Credit
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{ CV_VISA, "A000000003101002" }, // VISA Debit
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{ CV_VISA, "A0000000032010" }, // VISA Electron
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{ CV_VISA, "A0000000032020" }, // VISA
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{ CV_VISA, "A0000000033010" }, // VISA Interlink
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{ CV_VISA, "A0000000034010" }, // VISA Specific
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{ CV_VISA, "A0000000035010" }, // VISA Specific
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{ CV_VISA, "A0000000036010" }, // Domestic Visa Cash Stored Value
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{ CV_VISA, "A0000000036020" }, // International Visa Cash Stored Value
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{ CV_VISA, "A0000000038002" }, // VISA Auth, VisaRemAuthen EMV-CAP (DPA)
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{ CV_VISA, "A0000000038010" }, // VISA Plus
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{ CV_VISA, "A0000000039010" }, // VISA Loyalty
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{ CV_VISA, "A000000003999910" }, // VISA Proprietary ATM
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// Visa USA
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{ CV_VISA, "A000000098" }, // Debit Card
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{ CV_VISA, "A0000000980848" }, // Debit Card
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// Mastercard International
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{ CV_MASTERCARD, "A00000000401" }, // MasterCard PayPass
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{ CV_MASTERCARD, "A0000000041010" }, // MasterCard Credit
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{ CV_MASTERCARD, "A00000000410101213" }, // MasterCard Credit
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{ CV_MASTERCARD, "A00000000410101215" }, // MasterCard Credit
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{ CV_MASTERCARD, "A0000000042010" }, // MasterCard Specific
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{ CV_MASTERCARD, "A0000000043010" }, // MasterCard Specific
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{ CV_MASTERCARD, "A0000000043060" }, // Maestro (Debit)
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{ CV_MASTERCARD, "A000000004306001" }, // Maestro (Debit)
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{ CV_MASTERCARD, "A0000000044010" }, // MasterCard Specific
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{ CV_MASTERCARD, "A0000000045010" }, // MasterCard Specific
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{ CV_MASTERCARD, "A0000000046000" }, // Cirrus
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{ CV_MASTERCARD, "A0000000048002" }, // SecureCode Auth EMV-CAP
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{ CV_MASTERCARD, "A0000000049999" }, // MasterCard PayPass
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// American Express
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{ CV_AMERICANEXPRESS, "A000000025" },
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{ CV_AMERICANEXPRESS, "A0000000250000" },
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{ CV_AMERICANEXPRESS, "A00000002501" },
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{ CV_AMERICANEXPRESS, "A000000025010402" },
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{ CV_AMERICANEXPRESS, "A000000025010701" },
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{ CV_AMERICANEXPRESS, "A000000025010801" },
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// Groupement des Cartes Bancaires "CB"
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{ CV_CB, "A0000000421010" }, // Cartes Bancaire EMV Card
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{ CV_CB, "A0000000422010" },
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{ CV_CB, "A0000000423010" },
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{ CV_CB, "A0000000424010" },
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{ CV_CB, "A0000000425010" },
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// JCB CO., LTD.
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{ CV_JCB, "A00000006510" }, // JCB
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{ CV_JCB, "A0000000651010" }, // JCB J Smart Credit
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// Other
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{ CV_OTHER, "A0000001544442" }, // Banricompras Debito - Banrisul - Banco do Estado do Rio Grande do SUL - S.A.
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{ CV_OTHER, "F0000000030001" }, // BRADESCO
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{ CV_OTHER, "A0000005241010" }, // RuPay - RuPay
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{ CV_OTHER, "D5780000021010" } // Bankaxept - Bankaxept
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};
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static const size_t AIDlistLen = sizeof(AIDlist)/sizeof(TAIDList);
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static bool APDULogging = false;
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void SetAPDULogging(bool logging) {
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APDULogging = logging;
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}
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enum CardPSVendor GetCardPSVendor(uint8_t * AID, size_t AIDlen) {
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char buf[100] = {0};
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if (AIDlen < 1)
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return CV_NA;
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hex_to_buffer((uint8_t *)buf, AID, AIDlen, sizeof(buf) - 1, 0, 0, true);
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for(int i = 0; i < AIDlistLen; i ++) {
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if (strncmp(AIDlist[i].aid, buf, strlen(AIDlist[i].aid)) == 0){
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return AIDlist[i].vendor;
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}
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}
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return CV_NA;
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}
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static bool print_cb(void *data, const struct tlv *tlv, int level, bool is_leaf) {
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emv_tag_dump(tlv, stdout, level);
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if (is_leaf) {
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dump_buffer(tlv->value, tlv->len, stdout, level);
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}
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return true;
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}
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void TLVPrintFromBuffer(uint8_t *data, int datalen) {
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struct tlvdb *t = NULL;
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t = tlvdb_parse_multi(data, datalen);
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if (t) {
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PrintAndLog("-------------------- TLV decoded --------------------");
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tlvdb_visit(t, print_cb, NULL, 0);
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tlvdb_free(t);
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} else {
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PrintAndLog("TLV ERROR: Can't parse response as TLV tree.");
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}
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}
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void TLVPrintFromTLVLev(struct tlvdb *tlv, int level) {
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if (!tlv)
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return;
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tlvdb_visit(tlv, print_cb, NULL, level);
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}
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void TLVPrintFromTLV(struct tlvdb *tlv) {
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TLVPrintFromTLVLev(tlv, 0);
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}
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void TLVPrintAIDlistFromSelectTLV(struct tlvdb *tlv) {
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PrintAndLog("|------------------|--------|-------------------------|");
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PrintAndLog("| AID |Priority| Name |");
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PrintAndLog("|------------------|--------|-------------------------|");
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struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f);
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if (!ttmp)
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PrintAndLog("| none |");
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while (ttmp) {
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const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x84, NULL);
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const struct tlv *tgName = tlvdb_get_inchild(ttmp, 0x50, NULL);
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const struct tlv *tgPrio = tlvdb_get_inchild(ttmp, 0x87, NULL);
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if (!tgAID)
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break;
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PrintAndLog("|%s| %s |%s|",
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sprint_hex_inrow_ex(tgAID->value, tgAID->len, 18),
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(tgPrio) ? sprint_hex(tgPrio->value, 1) : " ",
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(tgName) ? sprint_ascii_ex(tgName->value, tgName->len, 25) : " ");
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ttmp = tlvdb_find_next(ttmp, 0x6f);
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}
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PrintAndLog("|------------------|--------|-------------------------|");
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}
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struct tlvdb *GetPANFromTrack2(const struct tlv *track2) {
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char track2Hex[200] = {0};
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uint8_t PAN[100] = {0};
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int PANlen = 0;
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char *tmp = track2Hex;
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if (!track2)
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return NULL;
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for (int i = 0; i < track2->len; ++i, tmp += 2)
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sprintf(tmp, "%02x", (unsigned int)track2->value[i]);
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int posD = strchr(track2Hex, 'd') - track2Hex;
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if (posD < 1)
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return NULL;
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track2Hex[posD] = 0;
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if (strlen(track2Hex) % 2) {
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track2Hex[posD] = 'F';
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track2Hex[posD + 1] = '\0';
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}
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param_gethex_to_eol(track2Hex, 0, PAN, sizeof(PAN), &PANlen);
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return tlvdb_fixed(0x5a, PANlen, PAN);
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}
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struct tlvdb *GetdCVVRawFromTrack2(const struct tlv *track2) {
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char track2Hex[200] = {0};
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char dCVVHex[100] = {0};
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uint8_t dCVV[100] = {0};
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int dCVVlen = 0;
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const int PINlen = 5; // must calculated from 9F67 MSD Offset but i have not seen this tag)
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char *tmp = track2Hex;
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if (!track2)
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return NULL;
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for (int i = 0; i < track2->len; ++i, tmp += 2)
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sprintf(tmp, "%02x", (unsigned int)track2->value[i]);
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int posD = strchr(track2Hex, 'd') - track2Hex;
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if (posD < 1)
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return NULL;
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memset(dCVVHex, '0', 32);
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// ATC
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memcpy(dCVVHex + 0, track2Hex + posD + PINlen + 11, 4);
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// PAN 5 hex
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memcpy(dCVVHex + 4, track2Hex, 5);
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// expire date
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memcpy(dCVVHex + 9, track2Hex + posD + 1, 4);
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// service code
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memcpy(dCVVHex + 13, track2Hex + posD + 5, 3);
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param_gethex_to_eol(dCVVHex, 0, dCVV, sizeof(dCVV), &dCVVlen);
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return tlvdb_fixed(0x02, dCVVlen, dCVV);
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}
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int EMVExchangeEx(bool ActivateField, bool LeaveFieldON, sAPDU apdu, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
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uint8_t data[APDU_RES_LEN] = {0};
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*ResultLen = 0;
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if (sw) *sw = 0;
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uint16_t isw = 0;
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if (ActivateField)
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DropField();
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// COMPUTE APDU
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memcpy(data, &apdu, 5);
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if (apdu.data)
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memcpy(&data[5], apdu.data, apdu.Lc);
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if (APDULogging)
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PrintAndLog(">>>> %s", sprint_hex(data, 6 + apdu.Lc));
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// 6 byes + data = INS + CLA + P1 + P2 + Lc + <data = Nc> + Le
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int res = ExchangeAPDU14a(data, 6 + apdu.Lc, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen);
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if (APDULogging)
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PrintAndLog("<<<< %s", sprint_hex(Result, *ResultLen));
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if (res) {
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return res;
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}
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*ResultLen -= 2;
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isw = Result[*ResultLen] * 0x0100 + Result[*ResultLen + 1];
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if (sw)
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*sw = isw;
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if (isw != 0x9000) {
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if (APDULogging)
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PrintAndLog("APDU(%02x%02x) ERROR: [%4X] %s", apdu.CLA, apdu.INS, isw, GetAPDUCodeDescription(*sw >> 8, *sw & 0xff));
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return 5;
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}
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// add to tlv tree
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if (tlv) {
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struct tlvdb *t = tlvdb_parse_multi(Result, *ResultLen);
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tlvdb_add(tlv, t);
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}
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return 0;
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}
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int EMVExchange(bool LeaveFieldON, sAPDU apdu, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
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return EMVExchangeEx(false, LeaveFieldON, apdu, Result, MaxResultLen, ResultLen, sw, tlv);
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}
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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) {
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return EMVExchangeEx(ActivateField, LeaveFieldON, (sAPDU){0x00, 0xa4, 0x04, 0x00, AIDLen, AID}, Result, MaxResultLen, ResultLen, sw, tlv);
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}
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int EMVSelectPSE(bool ActivateField, bool LeaveFieldON, uint8_t PSENum, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw) {
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uint8_t buf[APDU_AID_LEN] = {0};
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*ResultLen = 0;
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int len = 0;
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int res = 0;
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switch (PSENum) {
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case 1:
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param_gethex_to_eol(PSElist[1], 0, buf, sizeof(buf), &len);
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break;
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case 2:
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param_gethex_to_eol(PSElist[0], 0, buf, sizeof(buf), &len);
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break;
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default:
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return -1;
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}
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// select
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res = EMVSelect(ActivateField, LeaveFieldON, buf, len, Result, MaxResultLen, ResultLen, sw, NULL);
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return res;
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}
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int EMVSearchPSE(bool ActivateField, bool LeaveFieldON, bool decodeTLV, struct tlvdb *tlv) {
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uint8_t data[APDU_RES_LEN] = {0};
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size_t datalen = 0;
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uint16_t sw = 0;
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int res;
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// select PPSE
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res = EMVSelectPSE(ActivateField, true, 2, data, sizeof(data), &datalen, &sw);
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if (!res){
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struct tlvdb *t = NULL;
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t = tlvdb_parse_multi(data, datalen);
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if (t) {
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int retrycnt = 0;
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struct tlvdb *ttmp = tlvdb_find_path(t, (tlv_tag_t[]){0x6f, 0xa5, 0xbf0c, 0x61, 0x00});
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if (!ttmp)
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PrintAndLog("PPSE don't have records.");
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while (ttmp) {
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const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x4f, NULL);
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if (tgAID) {
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res = EMVSelect(false, true, (uint8_t *)tgAID->value, tgAID->len, data, sizeof(data), &datalen, &sw, tlv);
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// retry if error and not returned sw error
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if (res && res != 5) {
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if (++retrycnt < 3){
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continue;
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} else {
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// card select error, proxmark error
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if (res == 1) {
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PrintAndLog("Exit...");
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return 1;
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}
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retrycnt = 0;
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PrintAndLog("Retry failed [%s]. Skiped...", sprint_hex_inrow(tgAID->value, tgAID->len));
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}
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// next element
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ttmp = tlvdb_find_next(ttmp, 0x61);
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continue;
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}
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retrycnt = 0;
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// all is ok
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if (decodeTLV){
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PrintAndLog("%s:", sprint_hex_inrow(tgAID->value, tgAID->len));
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TLVPrintFromBuffer(data, datalen);
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}
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}
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ttmp = tlvdb_find_next(ttmp, 0x61);
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}
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tlvdb_free(t);
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} else {
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PrintAndLog("PPSE ERROR: Can't get TLV from response.");
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}
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} else {
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PrintAndLog("PPSE ERROR: Can't select PPSE AID. Error: %d", res);
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}
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if(!LeaveFieldON)
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DropField();
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return res;
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}
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int EMVSearch(bool ActivateField, bool LeaveFieldON, bool decodeTLV, struct tlvdb *tlv) {
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uint8_t aidbuf[APDU_AID_LEN] = {0};
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int aidlen = 0;
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uint8_t data[APDU_RES_LEN] = {0};
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size_t datalen = 0;
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uint16_t sw = 0;
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int res = 0;
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int retrycnt = 0;
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for(int i = 0; i < AIDlistLen; i ++) {
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param_gethex_to_eol(AIDlist[i].aid, 0, aidbuf, sizeof(aidbuf), &aidlen);
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res = EMVSelect((i == 0) ? ActivateField : false, (i == AIDlistLen - 1) ? LeaveFieldON : true, aidbuf, aidlen, data, sizeof(data), &datalen, &sw, tlv);
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// retry if error and not returned sw error
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if (res && res != 5) {
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if (++retrycnt < 3){
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i--;
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} else {
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// card select error, proxmark error
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if (res == 1) {
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PrintAndLog("Exit...");
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return 1;
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}
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retrycnt = 0;
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PrintAndLog("Retry failed [%s]. Skiped...", AIDlist[i].aid);
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}
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continue;
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}
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retrycnt = 0;
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if (res)
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continue;
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if (decodeTLV){
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PrintAndLog("%s:", AIDlist[i].aid);
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TLVPrintFromBuffer(data, datalen);
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}
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}
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return 0;
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}
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int EMVSelectApplication(struct tlvdb *tlv, uint8_t *AID, size_t *AIDlen) {
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// check priority. 0x00 - highest
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int prio = 0xffff;
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*AIDlen = 0;
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struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f);
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if (!ttmp)
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return 1;
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while (ttmp) {
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const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x84, NULL);
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const struct tlv *tgPrio = tlvdb_get_inchild(ttmp, 0x87, NULL);
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if (!tgAID)
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break;
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if (tgPrio) {
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int pt = bytes_to_num((uint8_t*)tgPrio->value, (tgPrio->len < 2) ? tgPrio->len : 2);
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if (pt < prio) {
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prio = pt;
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memcpy(AID, tgAID->value, tgAID->len);
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*AIDlen = tgAID->len;
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}
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} else {
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// takes the first application from list wo priority
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if (!*AIDlen) {
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memcpy(AID, tgAID->value, tgAID->len);
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*AIDlen = tgAID->len;
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}
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}
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ttmp = tlvdb_find_next(ttmp, 0x6f);
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}
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return 0;
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}
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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) {
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return EMVExchange(LeaveFieldON, (sAPDU){0x80, 0xa8, 0x00, 0x00, PDOLLen, PDOL}, Result, MaxResultLen, ResultLen, sw, tlv);
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}
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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) {
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return EMVExchange(LeaveFieldON, (sAPDU){0x00, 0xb2, SFIrec, (SFI << 3) | 0x04, 0, NULL}, Result, MaxResultLen, ResultLen, sw, tlv);
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}
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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) {
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return EMVExchange(LeaveFieldON, (sAPDU){0x80, 0xae, RefControl, 0x00, CDOLLen, CDOL}, Result, MaxResultLen, ResultLen, sw, tlv);
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}
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int EMVGenerateChallenge(bool LeaveFieldON, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
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return EMVExchange(LeaveFieldON, (sAPDU){0x00, 0x84, 0x00, 0x00, 0x00, NULL}, Result, MaxResultLen, ResultLen, sw, tlv);
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}
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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) {
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return EMVExchange(LeaveFieldON, (sAPDU){0x80, 0x2a, 0x8e, 0x80, UDOLlen, UDOL}, Result, MaxResultLen, ResultLen, sw, tlv);
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}
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