mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-09-21 15:56:21 +08:00
943 lines
29 KiB
C
943 lines
29 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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#include "emvjson.h"
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#include "util_posix.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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char *TransactionTypeStr[] = {
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"MSD",
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"VSDC",
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"qVCDCMCHIP",
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"CDA"
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};
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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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PrintAndLogEx(NORMAL, "-------------------- 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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PrintAndLogEx(WARNING, "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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PrintAndLogEx(NORMAL, "|------------------|--------|-------------------------|");
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PrintAndLogEx(NORMAL, "| AID |Priority| Name |");
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PrintAndLogEx(NORMAL, "|------------------|--------|-------------------------|");
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struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f);
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if (!ttmp)
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PrintAndLogEx(NORMAL, "| 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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PrintAndLogEx(NORMAL, "|%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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PrintAndLogEx(NORMAL, "|------------------|--------|-------------------------|");
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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(EMVCommandChannel channel, bool ActivateField, bool LeaveFieldON, sAPDU apdu, bool IncludeLe, 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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int res = 0;
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if (ActivateField) {
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DropField();
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msleep(50);
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}
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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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PrintAndLogEx(NORMAL, ">>>> %s", sprint_hex(data, (IncludeLe?6:5) + apdu.Lc));
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switch(channel) {
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case ECC_CONTACTLESS:
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// 6 byes + data = INS + CLA + P1 + P2 + Lc + <data = Nc> + Le(?IncludeLe)
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res = ExchangeAPDU14a(data, (IncludeLe?6:5) + apdu.Lc, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen);
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if (res) {
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return res;
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}
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break;
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case ECC_CONTACT:
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//int ExchangeAPDUSC(uint8_t *datain, int datainlen, bool activateCard, bool leaveSignalON, uint8_t *dataout, int maxdataoutlen, int *dataoutlen);
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res = ExchangeAPDU14a(data, (IncludeLe?6:5) + apdu.Lc, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen);
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if (res) {
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return res;
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}
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break;
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}
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if (APDULogging)
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PrintAndLogEx(NORMAL, "<<<< %s", sprint_hex(Result, *ResultLen));
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if (*ResultLen < 2) {
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return 200;
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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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if (*sw >> 8 == 0x61) {
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PrintAndLogEx(ERR, "APDU chaining len:%02x -->", *sw & 0xff);
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} else {
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PrintAndLogEx(ERR, "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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}
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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(EMVCommandChannel channel, 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(channel, false, LeaveFieldON, apdu, true, Result, MaxResultLen, ResultLen, sw, tlv);
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}
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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) {
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return EMVExchangeEx(channel, ActivateField, LeaveFieldON, (sAPDU){0x00, 0xa4, 0x04, 0x00, AIDLen, AID}, true, Result, MaxResultLen, ResultLen, sw, tlv);
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}
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int EMVSelectPSE(EMVCommandChannel channel, 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(channel, 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(EMVCommandChannel channel, 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(channel, 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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PrintAndLogEx(FAILED, "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(channel, 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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PrintAndLogEx(WARNING, "Exit...");
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return 1;
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}
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retrycnt = 0;
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PrintAndLogEx(NORMAL, "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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PrintAndLogEx(NORMAL, "%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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PrintAndLogEx(WARNING, "PPSE ERROR: Can't get TLV from response.");
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}
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} else {
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PrintAndLogEx(WARNING, "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(EMVCommandChannel channel, 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(channel, (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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// (1) - card select error, proxmark error OR (200) - result length = 0
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if (res == 1 || res == 200) {
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PrintAndLogEx(WARNING, "Exit...");
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return 1;
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}
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retrycnt = 0;
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PrintAndLogEx(FAILED, "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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PrintAndLogEx(NORMAL, "%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) {
|
|
// 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) {
|
|
return EMVExchange(channel, LeaveFieldON, (sAPDU){0x80, 0xa8, 0x00, 0x00, PDOLLen, PDOL}, 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) {
|
|
int res = EMVExchange(channel, LeaveFieldON, (sAPDU){0x00, 0xb2, SFIrec, (SFI << 3) | 0x04, 0, NULL}, Result, MaxResultLen, ResultLen, sw, tlv);
|
|
if (*sw == 0x6700) {
|
|
PrintAndLogEx(INFO, ">>> trying to reissue command withouth Le...");
|
|
res = EMVExchangeEx(channel, false, LeaveFieldON, (sAPDU){0x00, 0xb2, SFIrec, (SFI << 3) | 0x04, 0, NULL}, false, 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) {
|
|
return EMVExchange(channel, LeaveFieldON, (sAPDU){0x80, 0xae, RefControl, 0x00, CDOLLen, CDOL}, 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) {
|
|
int res = EMVExchange(channel, LeaveFieldON, (sAPDU){0x00, 0x84, 0x00, 0x00, 0x00, NULL}, Result, MaxResultLen, ResultLen, sw, tlv);
|
|
if (*sw == 0x6700) {
|
|
PrintAndLogEx(INFO, ">>> trying to reissue command withouth Le...");
|
|
res = EMVExchangeEx(channel, false, LeaveFieldON, (sAPDU){0x00, 0x84, 0x00, 0x00, 0x00, NULL}, false, 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) {
|
|
return EMVExchange(channel, LeaveFieldON, (sAPDU){0x00, 0x88, 0x00, 0x00, DDOLLen, DDOL}, 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) {
|
|
return EMVExchange(channel, LeaveFieldON, (sAPDU){0x80, 0x2a, 0x8e, 0x80, UDOLlen, UDOL}, Result, MaxResultLen, ResultLen, sw, tlv);
|
|
}
|
|
|
|
// Authentication
|
|
static 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. (%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_RES_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) {
|
|
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 setrificate 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]
|
|
);
|
|
|
|
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]
|
|
);
|
|
}
|
|
|
|
// 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, "SDA verified OK. (%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 {
|
|
// 9f4b Signed Dynamic Application Data
|
|
dda_db = tlvdb_fixed(0x9f4b, len - 2, buf + 2);
|
|
tlvdb_add(tlv, dda_db);
|
|
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 setrificate 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;
|
|
}
|
|
PrintAndLog("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, "$.ApplicationData.IssuerPublicKeyModulus", issuer_pk->modulus, issuer_pk->mlen);
|
|
free(issuer_pk_c);
|
|
|
|
struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlvRoot, NULL);
|
|
if (!icc_pk) {
|
|
emv_pk_free(pk);
|
|
emv_pk_free(issuer_pk);
|
|
PrintAndLog("WARNING: ICC certificate not found. Exit.");
|
|
return 2;
|
|
}
|
|
printf("ICC PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
|
|
icc_pk->rid[0],
|
|
icc_pk->rid[1],
|
|
icc_pk->rid[2],
|
|
icc_pk->rid[3],
|
|
icc_pk->rid[4],
|
|
icc_pk->index,
|
|
icc_pk->serial[0],
|
|
icc_pk->serial[1],
|
|
icc_pk->serial[2]
|
|
);
|
|
|
|
char *icc_pk_c = emv_pk_dump_pk(icc_pk);
|
|
JsonSaveStr(root, "$.ApplicationData.ICCPublicKeyDec", icc_pk_c);
|
|
JsonSaveBufAsHex(root, "$.ApplicationData.ICCPublicKeyModulus", icc_pk->modulus, icc_pk->mlen);
|
|
free(issuer_pk_c);
|
|
|
|
return 0;
|
|
}
|