JS前端加密和Java後端的AES加密和解密

先上前端代碼

import cryptoJs from 'crypto-js'
let keyOne = 'ZHyXgjF7BejeJySh5vX4O6qE'

export default {
  //加密
   encrypt(word){
    var key = cryptoJs.enc.Utf8.parse(keyOne);
    var srcs = cryptoJs.enc.Utf8.parse(word);
    var encrypted = cryptoJs.AES.encrypt(srcs, key, {mode:cryptoJs.mode.ECB,padding: cryptoJs.pad.Pkcs7});
    return encrypted.toString();
},


//解密
 decrypt(word){
  var key = cryptoJs.enc.Utf8.parse(keyOne);
  var decrypt = cryptoJs.AES.decrypt(word, key, {mode:cryptoJs.mode.ECB,padding: cryptoJs.pad.Pkcs7});
  return cryptoJs.enc.Utf8.stringify(decrypt).toString();
}


}
           

在上背景代碼

package com.kmnfsw.server.utils;

import java.math.BigInteger;
import java.security.SecureRandom;
import java.util.Random;

import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang3.StringUtils;

import sun.misc.BASE64Decoder;

/**
 * AES的加密和解密
 */
public class Aes {

    public static void main(String[] args) throws Exception {
        String content = "123";
        System.out.println("加密前：" + content);
        System.out.println("加密密鑰和解密密鑰：" + KEY);
        String encrypt = aesEncrypt(content);
        System.out.println("加密後：" + encrypt);
        String decrypt = aesDecrypt(encrypt);
        System.out.println("解密後：" + decrypt);
        System.out.println("=========================================");
        String aesRandomKey = getAESRandomKey();
        String randomString = getRandomString(24);
        System.out.println("随機秘鑰1=" + aesRandomKey);
        System.out.println("随機秘鑰2=" + randomString);
    }


    //密鑰 (需要前端和後端保持一緻)
    private static  final String KEY = "ZHyXgjF7BejeJySh5vX4O6qE";
    //算法
    private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";


    /**
     * 随機生成密鑰
     * 純數字
     */
    public static String getAESRandomKey() {
        SecureRandom random = new SecureRandom();
        long randomKey = random.nextLong();
        return String.valueOf(randomKey);
    }

    /**
     * 生成的字元串每個位置都有可能是str中的一個字母或數字
     * @param length 使用者要求産生字元串的長度
     */

    public static String getRandomString(int length){
        String str="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
        Random random=new Random();
        StringBuffer sb=new StringBuffer();
        for(int i=0;i<length;i++){
            int number=random.nextInt(62);
            sb.append(str.charAt(number));
        }
        return sb.toString();
    }

    /**
     * 将byte[]轉為各種進制的字元串
     * @param bytes byte[]
     * @param radix 可以轉換進制的範圍，從Character.MIN_RADIX到Character.MAX_RADIX，超出範圍後變為10進制
     * @return 轉換後的字元串
     */
    public static String binary(byte[] bytes, int radix){
        return new BigInteger(1, bytes).toString(radix);// 這裡的1代表正數
    }

    /**
     * base 64 encode
     * @param bytes 待編碼的byte[]
     * @return 編碼後的base 64 code
     */
    public static String base64Encode(byte[] bytes){
        return Base64.encodeBase64String(bytes);
    }

    /**
     * base 64 decode
     * @param base64Code 待解碼的base 64 code
     * @return 解碼後的byte[]
     */
    public static byte[] base64Decode(String base64Code) throws Exception{
        return StringUtils.isEmpty(base64Code) ? null : new BASE64Decoder().decodeBuffer(base64Code);
    }


    /**
     * AES加密
     * @param content 待加密的内容
     * @return 加密後的byte[]
     */
    public static byte[] aesEncryptToBytes(String content) throws Exception {
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        kgen.init(128);
        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
        cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(KEY.getBytes(), "AES"));

        return cipher.doFinal(content.getBytes("utf-8"));
    }


    /**
     * AES加密為base 64 code
     * @param content 待加密的内容
     * @return 加密後的base 64 code
     */
    public static String aesEncrypt(String content) throws Exception {
        return base64Encode(aesEncryptToBytes(content));
    }

    /**
     * AES解密
     * @param encryptBytes 待解密的byte[]
     * @param decryptKey 解密密鑰
     * @return 解密後的String
     */
   /* public static String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception {
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        // 此類提供加密的強随機數生成器 (RNG)，該實作在windows上每次生成的key都相同，但是在部分linux或solaris系統上則不同。
        // SecureRandom random = new SecureRandom(key.getBytes());
        // 指定算法名稱，不同的系統上生成的key是相同的。
        SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
        random.setSeed(decryptKey.getBytes());
        //AES 要求密鑰長度為 128
         kgen.init(128, random);
        //使用密鑰初始化，設定為解密模式
        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
        cipher.init(Cipher.DECRYPT_MODE,  new SecretKeySpec(kgen.generateKey().getEncoded(), "AES"));
        byte[] decryptBytes = cipher.doFinal(encryptBytes);
        return new String(decryptBytes);
    }*/

    /**
     * AES解密
     * @param encryptBytes 待解密的byte[]
     * @return 解密後的String
     */
    public static String aesDecryptByBytes(byte[] encryptBytes) throws Exception {
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        kgen.init(128);

        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
        cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(KEY.getBytes(), "AES"));
        byte[] decryptBytes = cipher.doFinal(encryptBytes);
        return new String(decryptBytes);
    }




    /**
     * 将base 64 code AES解密
     * @param encryptStr 待解密的base 64 code
     * @return 解密後的string
     */
    public static String aesDecrypt(String encryptStr) throws Exception {
        return StringUtils.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr));
    }


}
           

需要的依賴jar：

<dependency>
    <groupId>commons-codec</groupId>
    <artifactId>commons-codec</artifactId>
    <version>1.10</version>
</dependency>
<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-lang3</artifactId>
    <version>3.4</version>
</dependency>