js(CryptoJs)前端加密和后端解密

布满荆棘的人生 2022-05-29 08:43 557阅读 0赞

一.前台加密，需要引入crypto-js.js库：  
  
  
<!DOCTYPE html>  
<html>  
    <head>  
        <meta charset="UTF-8">  
        <title>jsencrypt的使用</title>  
        <script src="js/jquery-1.4.4.min.js"></script>  
        <script type="text/javascript" src="js/crypto-js.js" ></script>  
        <script>  
var key  = CryptoJS.enc.Utf8.parse('abcdefgabcdefg12');//Latin1 w8m31+Yy/Nw6thPsMpO5fg==  
function Encrypt(word)\{    
  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();    
\}   
var content = Encrypt("123")  
$.ajax(\{  
type:"get",  
url:"http://192.168.56.1:8100/aesDecrypt?content="+content,  
async:true  
\});  
        </script>  
    </head>  
    </body>  
  
  
</html>  
  
  
二.后端解密:  
  
  
@RestController  
public class SystemController \{  
  
  
            private static final String KEY = "abcdefgabcdefg12";    
  
  
    private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";    
  
  
    @RequestMapping("/aesDecrypt")// 访问接口  
    public  void aesDecrypt(@RequestParam("content") String content) throws Exception \{  
        String decrypt = aesDecrypt(content, KEY);    
        System.out.println("解密后：" + decrypt);    
    \}  
  
  
    public static String base64Encode(byte\[\] bytes)\{    
        return Base64.encodeBase64String(bytes);    
    \}    
    public static byte\[\] base64Decode(String base64Code) throws Exception\{    
        return new BASE64Decoder().decodeBuffer(base64Code);    
    \}    
    public static byte\[\] aesEncryptToBytes(String content, String encryptKey) throws Exception \{    
        KeyGenerator kgen = KeyGenerator.getInstance("AES");    
        kgen.init(128);    
        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);    
        cipher.init(Cipher.ENCRYPT\_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES"));    
        return cipher.doFinal(content.getBytes("utf-8"));    
    \}    
    public static String aesEncrypt(String content, String encryptKey) throws Exception \{    
        return base64Encode(aesEncryptToBytes(content, encryptKey));    
    \}    
    public static String aesDecryptByBytes(byte\[\] encryptBytes, String decryptKey) throws Exception \{    
        KeyGenerator kgen = KeyGenerator.getInstance("AES");    
        kgen.init(128);    
        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);    
        cipher.init(Cipher.DECRYPT\_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES"));    
        byte\[\] decryptBytes = cipher.doFinal(encryptBytes);    
        return new String(decryptBytes);    
    \}    
    public static String aesDecrypt(String encryptStr, String decryptKey) throws Exception \{    
        return aesDecryptByBytes(base64Decode(encryptStr), decryptKey);    
    \}   
  
  
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