krb5_data_ct_cmp
if(krb5_data_ct_cmp(&c.checksum, &cksum->checksum) != 0) {
krb5_data_ct_cmp (
&& krb5_data_ct_cmp(&data_cksum.checksum, &cksum->checksum) == 0)
if (ret != 0 || krb5_data_ct_cmp(&local_checksum.checksum, &cksum.checksum) != 0) {
krb5_data_ct_cmp(&sk_verify.keyvalue, &session_key->keyvalue) != 0) {