cn.smallbun.scaffold.framework.common.toolkit.Des3Util Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of scaffold-framework Show documentation
smallbun企业级开发脚手架-核心框架
The newest version!
/*
 * Copyright (c) 2018-2019.‭‭‭‭‭‭‭‭‭‭‭‭[zuoqinggang] www.pingfangushi.com
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */


package cn.smallbun.scaffold.framework.common.toolkit;


import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESedeKeySpec;
import javax.crypto.spec.IvParameterSpec;
import java.security.Key;
import java.util.Base64;

/**
 * 3DES加密工具类
 *
 * @author SanLi
 * Created  by [email protected]  on 2018/1/15
 */
public class Des3Util {
	/**
	 * 密钥 长度不得小于24
	 */
	public final static String DES_KEY = "Klu&pVSlHSD@2M#p6NRRjv0Gz#nkGAMC#fUfxdpWuKnb3oXG%%zb^tywMN97bU2HxqHy&50dMQSOgP#mNvNIvfOg0z8u!BY2ZeL";
	/**
	 * 向量 可有可无 终端后台也要约定
	 */
	private final static String IV = "01234567";

	/**
	 * 3DES加密
	 *
	 * @param plainText 普通文本
	 * @return String
	 */
	public static String encode(String plainText, String key, String encoding) {
		try {
			Key desKey;
			DESedeKeySpec spec = new DESedeKeySpec(key.getBytes());
			SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("desede");
			desKey = keyFactory.generateSecret(spec);
			Cipher cipher = Cipher.getInstance("desede/CBC/PKCS5Padding");
			IvParameterSpec ips = new IvParameterSpec(IV.getBytes());
			cipher.init(Cipher.ENCRYPT_MODE, desKey, ips);
			byte[] encryptData = cipher.doFinal(plainText.getBytes(encoding));
			return Base64.getUrlEncoder().encodeToString(encryptData);
		} catch (Exception e) {
			throw new RuntimeException();
		}
	}

	/**
	 * 3DES解密
	 *
	 * @param encryptText 加密文本
	 * @return String
	 */
	public static String decode(String encryptText, String key, String encoding) {
		try {
			Key desKey;
			DESedeKeySpec spec = new DESedeKeySpec(key.getBytes());
			SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("desede");
			desKey = keyFactory.generateSecret(spec);
			Cipher cipher = Cipher.getInstance("desede/CBC/PKCS5Padding");
			IvParameterSpec ips = new IvParameterSpec(IV.getBytes());
			cipher.init(Cipher.DECRYPT_MODE, desKey, ips);
			byte[] decryptData = cipher.doFinal(Base64.getUrlDecoder().decode(encryptText));
			return new String(decryptData, encoding);
		} catch (Exception e) {
			throw new RuntimeException("3DES 解密异常");
		}
	}
}