crypto-js对称加密解密的使用（vue与java端）

一、vue前端

1.1、安装crypto-js

npm install crypto-js

1.2、创建加密解密jsAES.js

import CryptoJS from 'crypto-js'

/**
 * AES加密处理（CBC模式）
 */
export function encryptCBC(word, keyStr, ivStr) {
    
    
  // 16位数随机码
  keyStr = keyStr ? keyStr : "Ej7SdjOBvlv2PubN";
  ivStr = ivStr ? ivStr : "Ej7SdjOBvlv2PubN";
  let key = CryptoJS.enc.Utf8.parse(keyStr);
  let iv = CryptoJS.enc.Utf8.parse(ivStr);
  var encryptedData = CryptoJS.AES.encrypt(word, key, 
	  {
    
    
	  	iv: iv,
	    mode: CryptoJS.mode.CBC,
	    padding: CryptoJS.pad.Pkcs7
	  }
  );
  return encryptedData.toString();
}
/**
 * AES解密处理（CBC模式）
 */
export function decryptCBC(word, keyStr, ivStr) {
    
    
  word = (word + '').replace(/\n*$/g, '').replace(/\n/g, ''); // 这一行，将换行符替换为空

  // 密钥
  keyStr = keyStr ? keyStr : "Ej7SdjOBvlv2PubN";

  // 向量
  ivStr = ivStr ? ivStr : "Ej7SdjOBvlv2PubN";
  var key = CryptoJS.enc.Utf8.parse(keyStr);
  let iv = CryptoJS.enc.Utf8.parse(ivStr);
  var decrypt = CryptoJS.AES.decrypt(word, key, 
	  {
    
    
	    iv: iv,
	    mode: CryptoJS.mode.CBC,
	    padding: CryptoJS.pad.Pkcs7
	  }
  )
  return decrypt.toString(CryptoJS.enc.Utf8)
}

1.3、使用（vue文件或者js中）

import {
    
     encryptCBC } from '@/js/util/AES'

export function test1(){
    
    
	var a1 = encryptCBC("张三");
	console.log('加密后的数据：',a1 )
}

二、java后端的使用方式

import org.bouncycastle.jce.provider.BouncyCastleProvider;

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.security.Security;
import java.util.Base64;
public class AESUtil {
    
    
    // AES密钥算法
    private static final String KEY_ALGORITHM = "AES";
    // 加密/解密算法/工作模式/填充方式
    private static final String CIPHER_ALGORITHM = "AES/CBC/PKCS5Padding";

    private static final String KEY="Ej7SdjOBvlv2PubN";

    //CBC加密偏移量
    private static final String IVCODE="Ej7SdjOBvlv2PubN";
    
    /**
     * AES加密
     */
    public static String encrypt(String data) {
    
    
        try {
    
    
            Security.addProvider(new BouncyCastleProvider());
            SecretKeySpec secretKeySpec = new SecretKeySpec(KEY.getBytes(), KEY_ALGORITHM);
            Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM, "BC");
            IvParameterSpec iv = new IvParameterSpec(IVCODE.getBytes());
            cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec,iv);
            byte[] encryptedBytes = cipher.doFinal(data.getBytes());
            return Base64.getEncoder().encodeToString(encryptedBytes);
        } catch (Exception e) {
    
    
            e.printStackTrace();
            return null;
        }
    }
    /**
     * AES解密
     */
    public static String decrypt(String encryptedData) {
    
    
        try {
    
    
            SecretKeySpec secretKeySpec = new SecretKeySpec(KEY.getBytes(), KEY_ALGORITHM);
            IvParameterSpec iv = new IvParameterSpec(IVCODE.getBytes());
            Security.addProvider(new BouncyCastleProvider());
            byte[] encryptedBytes = javax.xml.bind.DatatypeConverter.parseBase64Binary(encryptedData);
            Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM, "BC");
            cipher.init(Cipher.DECRYPT_MODE, secretKeySpec, iv);
            byte[] decryptedBytes = cipher.doFinal(encryptedBytes);
            return new String(decryptedBytes);
        } catch (Exception e) {
    
    
            e.printStackTrace();
            return null;
        }
    }

    // 验证
    public static void main(String[] args) throws Exception {
    
    
        String data = "张三";
        String encryptedData = encrypt(data); // 加密数据
        String decryptedData = decrypt(encryptedData); // 解密数据
        System.out.println("加密后的数据: " + encryptedData);
        System.out.println("解密后的数据: " + decryptedData);
    }
}