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optimization UDOL creation. does not affect on functionality.

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This commit is contained in:
merlokk 2017-11-25 21:17:56 +02:00
parent 44128a0e9a
commit 78528074b1
1 changed files with 2 additions and 13 deletions
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15
client/emv/cmdemv.c
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@ -630,22 +630,11 @@ int CmdHFEMVExec(const char *cmd) {
return 4;
}
size_t udol_data_tlv_data_len;
unsigned char *udol_data_tlv_data = tlv_encode(udol_data_tlv, &udol_data_tlv_data_len);
if (!udol_data_tlv_data) {
PrintAndLog("ERROR: can't create UDOL data.");
return 4;
}
// eliminate fake tag
udol_data_tlv_data_len -= 2;
udol_data_tlv_data += 2;
PrintAndLog("UDOL data[%d]: %s", udol_data_tlv_data_len, sprint_hex(udol_data_tlv_data, udol_data_tlv_data_len));
PrintAndLog("UDOL data[%d]: %s", udol_data_tlv->len, sprint_hex(udol_data_tlv->value, udol_data_tlv->len));
PrintAndLog("\n* Mastercard compute cryptographic checksum(UDOL)");
res = MSCComputeCryptoChecksum(true, udol_data_tlv_data, udol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot);
res = MSCComputeCryptoChecksum(true, (uint8_t *)udol_data_tlv->value, udol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot);
if (res) {
PrintAndLog("ERROR Compute Crypto Checksum. APDU error %4x", sw);
return 5;