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org.dromara.hutool.crypto.symmetric.DES Maven / Gradle / Ivy
/*
* Copyright (c) 2013-2024 Hutool Team and hutool.cn
*
* Licensed 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
*
* http://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 org.dromara.hutool.crypto.symmetric;
import org.dromara.hutool.core.text.StrUtil;
import org.dromara.hutool.crypto.KeyUtil;
import org.dromara.hutool.crypto.Mode;
import org.dromara.hutool.crypto.Padding;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
/**
* DES加密算法实现
* DES全称为Data Encryption Standard,即数据加密标准,是一种使用密钥加密的块算法
* Java中默认实现为:DES/ECB/PKCS5Padding
*
* @author Looly
* @since 3.0.8
*/
public class DES extends SymmetricCrypto {
private static final long serialVersionUID = 1L;
// region ----- Constructor
/**
* 构造,默认DES/ECB/PKCS5Padding,使用随机密钥
*/
public DES() {
super(SymmetricAlgorithm.DES);
}
/**
* 构造,使用默认的DES/ECB/PKCS5Padding
*
* @param key 密钥
*/
public DES(final byte[] key) {
super(SymmetricAlgorithm.DES, key);
}
/**
* 构造,使用随机密钥
*
* @param mode 模式{@link Mode}
* @param padding {@link Padding}补码方式
*/
public DES(final Mode mode, final Padding padding) {
this(mode.name(), padding.name());
}
/**
* 构造
*
* @param mode 模式{@link Mode}
* @param padding {@link Padding}补码方式
* @param key 密钥,长度:8的倍数
*/
public DES(final Mode mode, final Padding padding, final byte[] key) {
this(mode, padding, key, null);
}
/**
* 构造
*
* @param mode 模式{@link Mode}
* @param padding {@link Padding}补码方式
* @param key 密钥,长度:8的倍数
* @param iv 偏移向量,加盐
* @since 3.3.0
*/
public DES(final Mode mode, final Padding padding, final byte[] key, final byte[] iv) {
this(mode.name(), padding.name(), key, iv);
}
/**
* 构造
*
* @param mode 模式{@link Mode}
* @param padding {@link Padding}补码方式
* @param key 密钥,长度:8的倍数
* @since 3.3.0
*/
public DES(final Mode mode, final Padding padding, final SecretKey key) {
this(mode, padding, key, null);
}
/**
* 构造
*
* @param mode 模式{@link Mode}
* @param padding {@link Padding}补码方式
* @param key 密钥,长度:8的倍数
* @param iv 偏移向量,加盐
* @since 3.3.0
*/
public DES(final Mode mode, final Padding padding, final SecretKey key, final IvParameterSpec iv) {
this(mode.name(), padding.name(), key, iv);
}
/**
* 构造
*
* @param mode 模式
* @param padding 补码方式
*/
public DES(final String mode, final String padding) {
this(mode, padding, (byte[]) null);
}
/**
* 构造
*
* @param mode 模式
* @param padding 补码方式
* @param key 密钥,长度:8的倍数
*/
public DES(final String mode, final String padding, final byte[] key) {
this(mode, padding, KeyUtil.generateKey("DES", key), null);
}
/**
* 构造
*
* @param mode 模式
* @param padding 补码方式
* @param key 密钥,长度:8的倍数
* @param iv 加盐
*/
public DES(final String mode, final String padding, final byte[] key, final byte[] iv) {
this(mode, padding, KeyUtil.generateKey("DES", key), null == iv ? null : new IvParameterSpec(iv));
}
/**
* 构造
*
* @param mode 模式
* @param padding 补码方式
* @param key 密钥,长度:8的倍数
*/
public DES(final String mode, final String padding, final SecretKey key) {
this(mode, padding, key, null);
}
/**
* 构造
*
* @param mode 模式
* @param padding 补码方式
* @param key 密钥,长度:8的倍数
* @param iv 加盐
*/
public DES(final String mode, final String padding, final SecretKey key, final IvParameterSpec iv) {
super(StrUtil.format("DES/{}/{}", mode, padding), key, iv);
}
// endregion
}