+ uint8_t CID = 0;
+ tlvdb_get_uint8(tlvRoot, 0x9f27, &CID);
+
+ // AC1 print result
+ PrintAndLog("");
+ if ((CID & EMVAC_AC_MASK) == EMVAC_AAC) PrintAndLogEx(INFO, "AC1 result: AAC (Transaction declined)");
+ if ((CID & EMVAC_AC_MASK) == EMVAC_TC) PrintAndLogEx(INFO, "AC1 result: TC (Transaction approved)");
+ if ((CID & EMVAC_AC_MASK) == EMVAC_ARQC) PrintAndLogEx(INFO, "AC1 result: ARQC (Online authorisation requested)");
+ if ((CID & EMVAC_AC_MASK) == EMVAC_AC_MASK) PrintAndLogEx(INFO, "AC1 result: RFU");
+
+ // decode Issuer Application Data (IAD)
+ uint8_t CryptoVersion = 0;
+ const struct tlv *IAD = tlvdb_get(tlvRoot, 0x9f10, NULL);
+ if (IAD && (IAD->len > 1)) {
+ PrintAndLogEx(NORMAL, "\n* * Issuer Application Data (IAD):");
+ uint8_t VDDlen = IAD->value[0]; // Visa discretionary data length
+ uint8_t IDDlen = 0; // Issuer discretionary data length
+ PrintAndLogEx(NORMAL, "IAD length: %d", IAD->len);
+ PrintAndLogEx(NORMAL, "VDDlen: %d", VDDlen);
+ if (VDDlen < IAD->len - 1)
+ IDDlen = IAD->value[VDDlen + 1];
+ PrintAndLogEx(NORMAL, "IDDlen: %d", IDDlen);
+
+ uint8_t DerivKeyIndex = IAD->value[1];
+ CryptoVersion = IAD->value[2];
+
+ PrintAndLogEx(NORMAL, "CryptoVersion: %d", CryptoVersion);
+ PrintAndLogEx(NORMAL, "DerivKeyIndex: %d", DerivKeyIndex);
+
+ // Card Verification Results (CVR) decode
+ if ((VDDlen - 2) > 0) {
+ uint8_t CVRlen = IAD->value[3];
+ if (CVRlen == (VDDlen - 2 - 1)) {
+ PrintAndLogEx(NORMAL, "CVR length: %d", CVRlen);
+ PrintAndLogEx(NORMAL, "CVR: %s", sprint_hex(&IAD->value[4], CVRlen));
+ } else {
+ PrintAndLogEx(NORMAL, "Wrong CVR length! CVR: %s", sprint_hex(&IAD->value[3], VDDlen - 2));
+ }
+ }
+ if (IDDlen)
+ PrintAndLogEx(NORMAL, "IDD: %s", sprint_hex(&IAD->value[VDDlen + 1], IDDlen));
+ } else {
+ PrintAndLogEx(NORMAL, "Issuer Application Data (IAD) not found.");
+ }
+
+ PrintAndLogEx(NORMAL, "\n* * Processing online request");