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https://github.com/RfidResearchGroup/proxmark3.git
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chg: 'hf emv' changes from @merlokk EMV4 commit
This commit is contained in:
iceman1001
parent
07ab8ea674
commit
a3ec7fd21f
32 changed files with 4157 additions and 3898 deletions
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@ -16,7 +16,7 @@ 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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//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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@ -464,32 +464,378 @@ int EMVGenerateChallenge(bool LeaveFieldON, uint8_t *Result, size_t MaxResultLen
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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 EMVInternalAuthenticate(bool LeaveFieldON, uint8_t *DDOL, size_t DDOLLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
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return EMVExchange(LeaveFieldON, (sAPDU){0x00, 0x88, 0x00, 0x00, DDOLLen, DDOL}, 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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// Authentication
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int trSDA(uint8_t *AID, size_t AIDlen, struct tlvdb *tlv) {
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if (AIDlen < 5)
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return 1;
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static struct emv_pk *get_ca_pk(struct tlvdb *db) {
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const struct tlv *df_tlv = tlvdb_get(db, 0x84, NULL);
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const struct tlv *caidx_tlv = tlvdb_get(db, 0x8f, NULL);
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if (!df_tlv || !caidx_tlv || df_tlv->len < 6 || caidx_tlv->len != 1)
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return NULL;
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PrintAndLog("CA public key index 0x%0x", caidx_tlv->value[0]);
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return emv_pk_get_ca_pk(df_tlv->value, caidx_tlv->value[0]);
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}
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int trSDA(struct tlvdb *tlv) {
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struct emv_pk *pk = get_ca_pk(tlv);
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if (!pk) {
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PrintAndLog("ERROR: Key not found. Exit.");
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return 2;
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}
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// Get public key index (0x8F)
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//int PubKeyIndx = 0;
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struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
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if (!issuer_pk) {
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emv_pk_free(pk);
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PrintAndLog("ERROR: Issuer certificate not found. Exit.");
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return 2;
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}
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PrintAndLog("Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx",
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issuer_pk->rid[0],
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issuer_pk->rid[1],
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issuer_pk->rid[2],
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issuer_pk->rid[3],
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issuer_pk->rid[4],
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issuer_pk->index,
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issuer_pk->serial[0],
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issuer_pk->serial[1],
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issuer_pk->serial[2]
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);
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const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
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if (!sda_tlv || sda_tlv->len < 1) {
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emv_pk_free(issuer_pk);
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emv_pk_free(pk);
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PrintAndLog("ERROR: Can't find input list for Offline Data Authentication. Exit.");
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return 3;
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}
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// Get public key from key storage
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// GetPublicKey(AID(0..5), PubKeyIndx)
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// Processing of Issuer Public Key Certificate (0x90)
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//Certificate =
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// check issuer public key certificate
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// Verification of Signed Static Application Data (SSAD) (0x93)
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// get 9F4A Static Data Authentication Tag List
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// set Data Auth Code (9F45) from SSAD
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struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
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if (dac_db) {
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const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
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PrintAndLog("SDA verified OK. (%02hhx:%02hhx)\n", dac_tlv->value[0], dac_tlv->value[1]);
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tlvdb_add(tlv, dac_db);
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} else {
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emv_pk_free(issuer_pk);
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emv_pk_free(pk);
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PrintAndLog("ERROR: SSAD verify error");
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return 4;
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}
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emv_pk_free(issuer_pk);
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emv_pk_free(pk);
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return 0;
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}
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static const unsigned char default_ddol_value[] = {0x9f, 0x37, 0x04};
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static struct tlv default_ddol_tlv = {.tag = 0x9f49, .len = 3, .value = default_ddol_value };
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int trDDA(bool decodeTLV, struct tlvdb *tlv) {
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uint8_t buf[APDU_RES_LEN] = {0};
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size_t len = 0;
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uint16_t sw = 0;
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struct emv_pk *pk = get_ca_pk(tlv);
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if (!pk) {
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PrintAndLog("ERROR: Key not found. Exit.");
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return 2;
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}
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const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
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if (!sda_tlv || sda_tlv->len < 1) {
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emv_pk_free(pk);
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PrintAndLog("ERROR: Can't find input list for Offline Data Authentication. Exit.");
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return 3;
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}
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struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
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if (!issuer_pk) {
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emv_pk_free(pk);
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PrintAndLog("ERROR: Issuer certificate not found. Exit.");
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return 2;
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}
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printf("Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
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issuer_pk->rid[0],
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issuer_pk->rid[1],
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issuer_pk->rid[2],
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issuer_pk->rid[3],
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issuer_pk->rid[4],
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issuer_pk->index,
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issuer_pk->serial[0],
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issuer_pk->serial[1],
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issuer_pk->serial[2]
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);
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struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlv, sda_tlv);
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if (!icc_pk) {
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emv_pk_free(pk);
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emv_pk_free(issuer_pk);
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PrintAndLog("ERROR: ICC setrificate not found. Exit.");
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return 2;
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}
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printf("ICC PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
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icc_pk->rid[0],
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icc_pk->rid[1],
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icc_pk->rid[2],
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icc_pk->rid[3],
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icc_pk->rid[4],
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icc_pk->index,
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icc_pk->serial[0],
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icc_pk->serial[1],
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icc_pk->serial[2]
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);
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struct emv_pk *icc_pe_pk = emv_pki_recover_icc_pe_cert(issuer_pk, tlv);
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if (!icc_pe_pk) {
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PrintAndLog("WARNING: ICC PE PK recover error. ");
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} else {
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printf("ICC PE PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
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icc_pe_pk->rid[0],
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icc_pe_pk->rid[1],
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icc_pe_pk->rid[2],
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icc_pe_pk->rid[3],
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icc_pe_pk->rid[4],
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icc_pe_pk->index,
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icc_pe_pk->serial[0],
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icc_pe_pk->serial[1],
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icc_pe_pk->serial[2]
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);
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}
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// 9F4B: Signed Dynamic Application Data
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const struct tlv *sdad_tlv = tlvdb_get(tlv, 0x9f4b, NULL);
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// DDA with internal authenticate OR fDDA with filled 0x9F4B tag (GPO result)
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// EMV kernel3 v2.4, contactless book C-3, C.1., page 147
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if (sdad_tlv) {
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PrintAndLog("\n* * Got Signed Dynamic Application Data (9F4B) form GPO. Maybe fDDA...");
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const struct tlvdb *atc_db = emv_pki_recover_atc_ex(icc_pk, tlv, true);
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if (!atc_db) {
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PrintAndLog("ERROR: Can't recover IDN (ICC Dynamic Number)");
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emv_pk_free(pk);
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emv_pk_free(issuer_pk);
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emv_pk_free(icc_pk);
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return 8;
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}
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// 9f36 Application Transaction Counter (ATC)
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const struct tlv *atc_tlv = tlvdb_get(atc_db, 0x9f36, NULL);
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if(atc_tlv) {
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PrintAndLog("\nATC (Application Transaction Counter) [%zu] %s", atc_tlv->len, sprint_hex_inrow(atc_tlv->value, atc_tlv->len));
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const struct tlv *core_atc_tlv = tlvdb_get(tlv, 0x9f36, NULL);
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if(tlv_equal(core_atc_tlv, atc_tlv)) {
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PrintAndLog("ATC check OK.");
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PrintAndLog("fDDA (fast DDA) verified OK.");
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} else {
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PrintAndLog("ERROR: fDDA verified, but ATC in the certificate and ATC in the record not the same.");
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}
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} else {
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PrintAndLog("\nERROR: fDDA (fast DDA) verify error");
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emv_pk_free(pk);
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emv_pk_free(issuer_pk);
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emv_pk_free(icc_pk);
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return 9;
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}
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} else {
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struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
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if (dac_db) {
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const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
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printf("SDA verified OK. (%02hhx:%02hhx)\n", dac_tlv->value[0], dac_tlv->value[1]);
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tlvdb_add(tlv, dac_db);
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} else {
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PrintAndLog("ERROR: SSAD verify error");
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emv_pk_free(pk);
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emv_pk_free(issuer_pk);
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emv_pk_free(icc_pk);
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return 4;
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}
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PrintAndLog("\n* Calc DDOL");
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const struct tlv *ddol_tlv = tlvdb_get(tlv, 0x9f49, NULL);
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if (!ddol_tlv) {
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ddol_tlv = &default_ddol_tlv;
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PrintAndLog("DDOL [9f49] not found. Using default DDOL");
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}
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struct tlv *ddol_data_tlv = dol_process(ddol_tlv, tlv, 0);
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if (!ddol_data_tlv) {
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PrintAndLog("ERROR: Can't create DDOL TLV");
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emv_pk_free(pk);
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emv_pk_free(issuer_pk);
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emv_pk_free(icc_pk);
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return 5;
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}
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PrintAndLog("DDOL data[%d]: %s", ddol_data_tlv->len, sprint_hex(ddol_data_tlv->value, ddol_data_tlv->len));
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PrintAndLog("\n* Internal Authenticate");
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int res = EMVInternalAuthenticate(true, (uint8_t *)ddol_data_tlv->value, ddol_data_tlv->len, buf, sizeof(buf), &len, &sw, NULL);
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if (res) {
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PrintAndLog("Internal Authenticate error(%d): %4x. Exit...", res, sw);
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free(ddol_data_tlv);
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emv_pk_free(pk);
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emv_pk_free(issuer_pk);
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emv_pk_free(icc_pk);
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return 6;
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}
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struct tlvdb *dda_db = NULL;
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if (buf[0] == 0x80) {
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if (len < 3 ) {
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PrintAndLog("ERROR: Internal Authenticate format1 parsing error. length=%d", len);
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} else {
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// 9f4b Signed Dynamic Application Data
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dda_db = tlvdb_fixed(0x9f4b, len - 2, buf + 2);
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tlvdb_add(tlv, dda_db);
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if (decodeTLV){
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PrintAndLog("* * Decode response format 1:");
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TLVPrintFromTLV(dda_db);
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}
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}
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} else {
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dda_db = tlvdb_parse_multi(buf, len);
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if(!dda_db) {
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PrintAndLog("ERROR: Can't parse Internal Authenticate result as TLV");
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free(ddol_data_tlv);
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emv_pk_free(pk);
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emv_pk_free(issuer_pk);
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emv_pk_free(icc_pk);
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return 7;
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}
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tlvdb_add(tlv, dda_db);
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if (decodeTLV)
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TLVPrintFromTLV(dda_db);
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}
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struct tlvdb *idn_db = emv_pki_recover_idn_ex(icc_pk, dda_db, ddol_data_tlv, true);
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free(ddol_data_tlv);
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if (!idn_db) {
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PrintAndLog("ERROR: Can't recover IDN (ICC Dynamic Number)");
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tlvdb_free(dda_db);
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emv_pk_free(pk);
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emv_pk_free(issuer_pk);
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emv_pk_free(icc_pk);
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return 8;
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}
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tlvdb_free(dda_db);
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// 9f4c ICC Dynamic Number
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const struct tlv *idn_tlv = tlvdb_get(idn_db, 0x9f4c, NULL);
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if(idn_tlv) {
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PrintAndLog("\nIDN (ICC Dynamic Number) [%zu] %s", idn_tlv->len, sprint_hex_inrow(idn_tlv->value, idn_tlv->len));
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PrintAndLog("DDA verified OK.");
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tlvdb_add(tlv, idn_db);
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tlvdb_free(idn_db);
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} else {
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PrintAndLog("\nERROR: DDA verify error");
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tlvdb_free(idn_db);
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emv_pk_free(pk);
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emv_pk_free(issuer_pk);
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emv_pk_free(icc_pk);
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return 9;
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}
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}
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emv_pk_free(pk);
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emv_pk_free(issuer_pk);
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emv_pk_free(icc_pk);
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return 0;
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}
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int trCDA(struct tlvdb *tlv, struct tlvdb *ac_tlv, struct tlv *pdol_data_tlv, struct tlv *ac_data_tlv) {
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struct emv_pk *pk = get_ca_pk(tlv);
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if (!pk) {
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PrintAndLog("ERROR: Key not found. Exit.");
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return 2;
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}
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const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
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if (!sda_tlv || sda_tlv->len < 1) {
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PrintAndLog("ERROR: Can't find input list for Offline Data Authentication. Exit.");
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emv_pk_free(pk);
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return 3;
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}
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struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
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if (!issuer_pk) {
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PrintAndLog("ERROR: Issuer certificate not found. Exit.");
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emv_pk_free(pk);
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return 2;
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}
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printf("Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
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issuer_pk->rid[0],
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issuer_pk->rid[1],
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issuer_pk->rid[2],
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issuer_pk->rid[3],
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issuer_pk->rid[4],
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issuer_pk->index,
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issuer_pk->serial[0],
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issuer_pk->serial[1],
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issuer_pk->serial[2]
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);
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struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlv, sda_tlv);
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if (!icc_pk) {
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PrintAndLog("ERROR: ICC setrificate not found. Exit.");
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emv_pk_free(pk);
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emv_pk_free(issuer_pk);
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return 2;
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}
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printf("ICC PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
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icc_pk->rid[0],
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icc_pk->rid[1],
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icc_pk->rid[2],
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icc_pk->rid[3],
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icc_pk->rid[4],
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icc_pk->index,
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icc_pk->serial[0],
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icc_pk->serial[1],
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icc_pk->serial[2]
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);
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struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
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if (dac_db) {
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const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
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PrintAndLog("SSAD verified OK. (%02hhx:%02hhx)", dac_tlv->value[0], dac_tlv->value[1]);
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tlvdb_add(tlv, dac_db);
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} else {
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PrintAndLog("ERROR: SSAD verify error");
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emv_pk_free(pk);
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emv_pk_free(issuer_pk);
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emv_pk_free(icc_pk);
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return 4;
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}
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PrintAndLog("\n* * Check Signed Dynamic Application Data (SDAD)");
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struct tlvdb *idn_db = emv_pki_perform_cda_ex(icc_pk, tlv, ac_tlv,
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||||
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);
|
||||
PrintAndLog("\nIDN (ICC Dynamic Number) [%zu] %s", idn_tlv->len, sprint_hex_inrow(idn_tlv->value, idn_tlv->len));
|
||||
PrintAndLog("CDA verified OK.");
|
||||
tlvdb_add(tlv, idn_db);
|
||||
} else {
|
||||
PrintAndLog("\nERROR: CDA verify error");
|
||||
}
|
||||
|
||||
emv_pk_free(pk);
|
||||
emv_pk_free(issuer_pk);
|
||||
emv_pk_free(icc_pk);
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue