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org.aoju.bus.crypto.symmetric.DESede Maven / Gradle / Ivy
/*********************************************************************************
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* The MIT License (MIT) *
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* Copyright (c) 2015-2020 aoju.org and other contributors. *
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package org.aoju.bus.crypto.symmetric;
import org.aoju.bus.core.lang.Algorithm;
import org.aoju.bus.core.toolkit.StringKit;
import org.aoju.bus.crypto.Builder;
import org.aoju.bus.crypto.Mode;
import org.aoju.bus.crypto.Padding;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
/**
* DESede是由DES对称加密算法改进后的一种对称加密算法,又名3DES、TripleDES。
* 使用 168 位的密钥对资料进行三次加密的一种机制;它通常(但非始终)提供极其强大的安全性。
* 如果三个 56 位的子元素都相同,则三重 DES 向后兼容 DES。
* Java中默认实现为:DESede/ECB/PKCS5Padding
*
* @author Kimi Liu
* @version 6.1.1
* @since JDK 1.8+
*/
public class DESede extends Symmetric {
private static final long serialVersionUID = 1L;
/**
* 构造,默认DESede/ECB/PKCS5Padding,使用随机密钥
*/
public DESede() {
super(Algorithm.DESede);
}
/**
* 构造,使用默认的DESede/ECB/PKCS5Padding
*
* @param key 密钥
*/
public DESede(byte[] key) {
super(Algorithm.DESede, key);
}
/**
* 构造,使用随机密钥
*
* @param mode 模式{@link Mode}
* @param padding {@link Padding}补码方式
*/
public DESede(Mode mode, 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24位
*/
public DESede(Mode mode, Padding padding, 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24位
* @param iv 偏移向量,加盐
*/
public DESede(Mode mode, Padding padding, byte[] key, 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24位
*/
public DESede(Mode mode, Padding padding, 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24位
* @param iv 偏移向量,加盐
*/
public DESede(Mode mode, Padding padding, SecretKey key, IvParameterSpec iv) {
this(mode.name(), padding.name(), key, iv);
}
/**
* 构造
*
* @param mode 模式
* @param padding 补码方式
*/
public DESede(String mode, 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24位
*/
public DESede(String mode, String padding, byte[] key) {
this(mode, padding, key, null);
}
/**
* 构造
*
* @param mode 模式
* @param padding 补码方式
* @param key 密钥,长度24位
* @param iv 加盐
*/
public DESede(String mode, String padding, byte[] key, byte[] iv) {
this(mode, padding, Builder.generateKey(Algorithm.DESede, key), null == iv ? null : new IvParameterSpec(iv));
}
/**
* 构造
*
* @param mode 模式
* @param padding 补码方式
* @param key 密钥
*/
public DESede(String mode, String padding, SecretKey key) {
this(mode, padding, key, null);
}
/**
* 构造
*
* @param mode 模式
* @param padding 补码方式
* @param key 密钥
* @param iv 加盐
*/
public DESede(String mode, String padding, SecretKey key, IvParameterSpec iv) {
super(StringKit.format("{}/{}/{}", Algorithm.DESede, mode, padding), key, iv);
}
}