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org.aoju.bus.crypto.symmetric.DES Maven / Gradle / Ivy
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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;
/**
* 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/CBC/PKCS5Padding
*
* @author Kimi Liu
* @version 6.1.1
* @since JDK 1.8+
*/
public class DES extends Symmetric {
private static final long serialVersionUID = 1L;
/**
* 构造，默认DES/CBC/PKCS5Padding，使用随机密钥
*/
public DES() {
super(Algorithm.DES);
}
/**
* 构造，使用默认的DES/CBC/PKCS5Padding
*
* @param key 密钥
*/
public DES(byte[] key) {
super(Algorithm.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(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：8的倍数
*/
public DES(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：8的倍数
* @param iv 偏移向量，加盐
*/
public DES(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：8的倍数
*/
public DES(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：8的倍数
* @param iv 偏移向量，加盐
*/
public DES(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 DES(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：8的倍数
*/
public DES(String mode, String padding, byte[] key) {
this(mode, padding, Builder.generateKey(Algorithm.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(String mode, String padding, byte[] key, byte[] iv) {
this(mode, padding, Builder.generateKey(Algorithm.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(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，长度：8的倍数
* @param iv 加盐
*/
public DES(String mode, String padding, SecretKey key, IvParameterSpec iv) {
super(StringKit.format("DES/{}/{}", mode, padding), key, iv);
}
}
