krb5int_fast_reply_key
retval = krb5int_fast_reply_key(context, strengthen_key, key, &tgs_key);
krb5int_fast_reply_key(krb5_context context,
ret = krb5int_fast_reply_key(context, strengthen_key, &ctx->as_key, &key);
ret = krb5int_fast_reply_key(context, strengthen_key, &ctx->as_key,