Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

public class Main {
    public static final int CRYPTO_KEY_LENGTH_BYTES = 32;

    public static byte[] unwrapkB(byte[] unwrapkB, byte[] wrapkB) {
        if (unwrapkB == null) {
            throw new IllegalArgumentException("unwrapkB must not be null");
        }
        if (wrapkB == null) {
            throw new IllegalArgumentException("wrapkB must not be null");
        }
        if (unwrapkB.length != CRYPTO_KEY_LENGTH_BYTES || wrapkB.length != CRYPTO_KEY_LENGTH_BYTES) {
            throw new IllegalArgumentException(
                    "unwrapkB and wrapkB must be " + CRYPTO_KEY_LENGTH_BYTES + " bytes long");
        }
        byte[] kB = new byte[CRYPTO_KEY_LENGTH_BYTES];
        for (int i = 0; i < wrapkB.length; i++) {
            kB[i] = (byte) (wrapkB[i] ^ unwrapkB[i]);
        }
        return kB;
    }
}