AES算法实现Java和JS互通加解密

问题描述：在项目中使用RSA加密解密，但是对于稍微有点长度的明文加密时，RSA就会提示加密内容过长，导致加密失败。所以在项目中对于请求参数过多的接口使用AES加密解密。

具体代码：

java后台：


import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

import sun.misc.BASE64Decoder;

/** 
 * @ClassName AESTest 
 * @Description TODO
 * @author Liu.xl
 * @date 2018年10月15日 下午5:11:58 
 * @version 1.0
 */
public class AESUtil {
	static String key = "U0CgGQFpJt2ZpGuR";  //16位
    static String iv = "gzAbpbVaSRA0zLZV";  //16位

    public static void main(String args[]) throws Exception {
       System.out.println(encryptAES("{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}{\"ZRRXX\":\"{\"ZRR_XM\":\"崔晓宇\",\"ZRR_SWJG_MC\":\"章丘\",\"ZRR_SJLY\":\"01\",\"ZRR_SJHM\":\"15588505678\",\"ZRR_SWJG_DM\":\"13701910000\",\"ZRR_ZJHM\":\"372922199309213232\",\"ZRR_DJXH\":\"1101122343333\"}"));
      
       String mw = "h5VN1mzTDhd8vjBkJDNUiM6qc7KOUg4+STx6ScWmiHz051j9YSj2w41+xsXs0Q4kdpCONZd11H4x ks/YuDPtKAtfRPjouJcR4SFRqP25qRCzKu4U2QmSPmVJP4vIv3tsyVnG0lyE+AFGzSKP2f0Uz6K/ N0YHLtjTxNwzyjk/uQ+/EZTjHCelywzVSlqS2pc3JxrQFRJ0vJEwWNHM8hHPUQybLI6Fu9inZo2m ANoZFb6uVcDSCIH98rYEmjJB5Fo8BBcjceNo5vrXjaV3YwjJlBnCS3SZsg6yNBOur3SvVuy6d1q5 +rGmyIgc/7v91qAXqwKi37+dY/y96BebNvO+TJSicJBhLgFgW+N2gRH7Ya50gEBynEtFJ1nLZdMG 4r6Eu1v87+i153xtiDdh6hEvaZo/ovsXuaif014CHL0qMbpY64g7mBv1LWn2BPSH0urFa4sS8GPL b174tTZcR0qNG9X2gOhO7JDlPzPwPaY3MddrNh6zPn4TDe7XIkl8EYxVGZ7KqdG/a8+YsIyCxeIX eSdeV81Hnak0UPmK8YRpiNi3WrzirOKZ7DmOwTywKG+CEP7WJKdgrmDEGoMaXKJNUthwCwbhlgZw lbrWkCnJ8ppKOjBD7Sd79+ZS91qLIb+ggrxGhqckIMqryHFHfbJ1OPhES8zoJ+C6ZJHR3OpOpWDz 78/RtlpBW/vkstObf/30q83G7RuvH13Cecg/ShOxfO4/ETNJfOij+Pbmc5Hsj8BxkiW1/LwBg4LO zoKUpVQx";
       
       
       mw = mw.replaceAll(" ", "");
       
       System.out.println(decryptAES(encryptAES("123456")));
       
       System.out.println("AES解密后的密文："+decryptAES(mw));
    }

    public static String encryptAES(String data) throws Exception {

        try {

            Cipher cipher = Cipher.getInstance("AES/CBC/NOPadding");   //参数分别代表 算法名称/加密模式/数据填充方式
            int blockSize = cipher.getBlockSize();

            byte[] dataBytes = data.getBytes();
            int plaintextLength = dataBytes.length;
            if (plaintextLength % blockSize != 0) {
                plaintextLength = plaintextLength + (blockSize - (plaintextLength % blockSize));
            }

            byte[] plaintext = new byte[plaintextLength];
            System.arraycopy(dataBytes, 0, plaintext, 0, dataBytes.length);

            SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");
            IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());

            cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);
            byte[] encrypted = cipher.doFinal(plaintext);

            return new sun.misc.BASE64Encoder().encode(encrypted);

        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static String decryptAES(String data) throws Exception {
        try {
            byte[] encrypted1 = new BASE64Decoder().decodeBuffer(data);

            Cipher cipher = Cipher.getInstance("AES/CBC/NOPadding");
            SecretKeySpec keyspec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
            IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes("UTF-8"));

            cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec);

            byte[] original = cipher.doFinal(encrypted1);
            String originalString = new String(original);
            return originalString;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

}

js实现

需要引入aes.js下载地址为：https://download.csdn.net/download/u013310119/10729861

<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>AES TEST</title>
</head>
<body>
<p>待加密值：123456RWEQR</p>
<p id="p1"></p>
<p id="p2"></p>

<script type="text/javascript" src="js/vendor/jquery-1.12.0.min.js"></script>
<script type="text/javascript" src="js/aes/aes.js"></script>
<script type="text/javascript" src="js/aes/pad-zeropadding.js"></script>
<script type="text/javascript">
    $(function () {
        var data = "123456RWEQR";
        var key = CryptoJS.enc.Latin1.parse('abcdef0123456789');
        var iv = CryptoJS.enc.Latin1.parse('0123456789abcdef');

        //加密
        var encrypted = CryptoJS.AES.encrypt(data, key, {
            iv: iv,
            mode: CryptoJS.mode.CBC,
            padding: CryptoJS.pad.ZeroPadding
        });
        $("#p1").text("加密结果："+encrypted.toString());
        console.log(encrypted.toString())
        //解密
        var decrypted = CryptoJS.AES.decrypt(encrypted, key, {iv: iv, padding: CryptoJS.pad.ZeroPadding});
        console.log(decrypted.toString(CryptoJS.enc.Utf8));
        $("#p2").text("解密结果："+decrypted.toString(CryptoJS.enc.Utf8));
    })
</script>
</body>
</html>

RSA实现前后端的加密解密参考博客：https://download.csdn.net/download/u013310119/10724582

可能出现的问题：

问题1：前台RSA加密后需要进行encodeURIComponent编码，因为RSA加密后密文中的+号等符号会被转义比如+号传到后台接收到就是%2。所以需要前台进行编码，后台通过getParamater（）取值时就是正确的值。RSA java后台加密返回给前台的密文后台也需要进行URLEncoder.encode编码。

AES算法实现Java和JS互通加解密

js实现

可能出现的问题：

AES加密的密文前台接受可能会由于换行符的问题，解密是把，这时候就要替换密文中的换行符。

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