com.github.bloodshura.x.cryptography.impl.cipher.Des Maven / Gradle / Ivy

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/*
 * Copyright (c) 2013-2018, João Vitor Verona Biazibetti - All Rights Reserved
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see .
 *
 * https://www.github.com/BloodShura
 */

package com.github.bloodshura.x.cryptography.impl.cipher;

import com.github.bloodshura.x.cryptography.AbstractCipher;

import javax.annotation.Nonnull;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.security.GeneralSecurityException;

public class Des extends AbstractCipher {
	public Des() {
	}

	public Des(@Nonnull byte[] salt) {
		setSalt(salt);
	}

	public Des(@Nonnull CharSequence salt) {
		setSalt(salt);
	}

	public Des(long salt) {
		setSalt(salt);
	}

	@Nonnull
	@Override
	protected Cipher createCipher() throws GeneralSecurityException {
		return Cipher.getInstance("DES");
	}

	@Override
	protected int getSaltLength() {
		return 8;
	}

	@Nonnull
	@Override
	protected SecretKeySpec getSecretKeySpec() {
		return new SecretKeySpec(getSalt(), "DES");
	}
}