rfc3961_load_checksum_key
int rfc3961_load_checksum_key(const struct krb5_enctype *krb5,
.load_checksum_key = rfc3961_load_checksum_key,
.load_checksum_key = rfc3961_load_checksum_key,
.load_checksum_key = rfc3961_load_checksum_key,