des-cbc加密解密工具

编程基础 • 2025-01-05 22:01 • 阅读 6

package des;

import sun.misc.BASE64Decoder;

import javax.crypto.*;
import javax.crypto.spec.DESKeySpec;
import javax.crypto.spec.IvParameterSpec;

public class CryptoTools {
private final byte[] DESkey = “0”.getBytes(“UTF-8”);// 设置密钥
private final byte[] DESIV = {0x52, (byte) 0xd3, (byte) 0x91, (byte) 0xac, 0x3e, (byte) 0xad, 0x10, 0x63};// 设置向量

 private AlgorithmParameterSpec iv = null;// 加密算法的参数接口，IvParameterSpec是它的一个实现 private Key key = null; public CryptoTools() throws Exception { DESKeySpec keySpec = new DESKeySpec(DESkey);// 设置密钥参数 iv = new IvParameterSpec(DESIV);// 设置向量 SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");// 获得密钥工厂 key = keyFactory.generateSecret(keySpec);// 得到密钥对象 } public byte[] encode(String data) throws Exception { Cipher enCipher = Cipher.getInstance("DES/CBC/PKCS5Padding");// 得到加密对象Cipher enCipher.init(Cipher.ENCRYPT_MODE, key, iv);// 设置工作模式为加密模式，给出密钥和向量 byte[] pasByte = enCipher.doFinal(data.getBytes("utf-8")); return pasByte; } public String decode(String data) throws Exception { Cipher deCipher = Cipher.getInstance("DES/CBC/PKCS5Padding"); deCipher.init(Cipher.DECRYPT_MODE, key, iv); BASE64Decoder base64Decoder = new BASE64Decoder(); byte[] pasByte = deCipher.doFinal(base64Decoder.decodeBuffer(data)); return new String(pasByte, "UTF-8"); } public static void main(String[] args) { try { String test = ""; CryptoTools des = new CryptoTools();//自定义密钥 System.out.println("加密前的字符："+test); System.out.println("加密后的字符："+des.encode(test)); } catch (Exception e) { e.printStackTrace(); } }

}

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des-cbc加密解密工具

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