Java Byte Array Convert To bytesToChars(byte[] bytes)

Description

Converts bytes to chars without using any external functions that might allocate additional buffers for the potentially sensitive data.

License

Open Source License

Parameter

Parameter	Description
bytes	The bytes (to convert into characters).

Return

The characters (converted from the specified bytes).

Declaration

public static char[] bytesToChars(byte[] bytes)

Method Source Code

//package com.java2s;
/*//from   www .jav a 2  s .c o  m
 * ====================
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2008-2009 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of the Common Development
 * and Distribution License("CDDL") (the "License").  You may not use this file
 * except in compliance with the License.
 *
 * You can obtain a copy of the License at
 * http://opensource.org/licenses/cddl1.php
 * See the License for the specific language governing permissions and limitations
 * under the License.
 *
 * When distributing the Covered Code, include this CDDL Header Notice in each file
 * and include the License file at http://opensource.org/licenses/cddl1.php.
 * If applicable, add the following below this CDDL Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 * ====================
 * Portions Copyrighted 2015 ForgeRock AS.
 */

public class Main {
    /**
     * Converts bytes to chars without using any external functions that might
     * allocate additional buffers for the potentially sensitive data.
     *
     * This guarantees the caller that they only need to cleanup the input and
     * result.
     *
     * @param bytes
     *            The bytes (to convert into characters).
     * @return The characters (converted from the specified bytes).
     */
    public static char[] bytesToChars(byte[] bytes) {
        char[] chars = new char[bytes.length / 2];
        for (int i = 0; i < chars.length; i++) {
            char v = (char) (((0xFF & (bytes[i * 2])) << 8) | (0xFF & bytes[i * 2 + 1]));
            chars[i] = v;
        }
        return chars;
    }
}