/*
 * Copyright 2021 LINE Corporation
 *
 * LINE Corporation licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

package com.linecorp.line.auth.fido.fido2.server.util;

import java.util.UUID;

public class AaguidUtil {
    public static String convert(byte[] aaguidBytes) {
        long msb = 0;
        long lsb = 0;
        for (int i = 0; i < 8; i++) {
            msb = (msb << 8) | (aaguidBytes[i] & 0xff);
        }
        for (int i = 8; i < 16; i++) {
            lsb = (lsb << 8) | (aaguidBytes[i] & 0xff);
        }
        return new UUID(msb, lsb).toString();
    }
}
