Nodejs AES加密

浏览数：41 / 时间：2015年06月09日

这几天被一个问题困扰着。

Nodejs的AES加密和Java，C#加密出来的不一致。当然，这样就不能解密了。

纠结了许久：后来还是实在不行了，看了下源代码，要不然还得继续纠结下去。

网上说，通常的nodejs AES和其他语言实现不一样。好吧~~或许吧。

nodejs的crypto模块。

var 
crypto = require(‘crypto‘);
 
    var 
data = "156156165152165156156";
    console.log(‘Original cleartext: ‘ 
+ data);
    var 
algorithm = ‘aes-128-ecb‘;
    var 
key = ‘78541561566‘;
    var 
clearEncoding = ‘utf8‘;
    //var cipherEncoding = ‘hex‘;
    //If the next line is uncommented, the final cleartext is wrong.
    var 
cipherEncoding = ‘base64‘;<br>/*加密*/
    var 
cipher = crypto.createCipher(algorithm, key);
 
    var 
cipherChunks = [];
    cipherChunks.push(cipher.update(data, clearEncoding, cipherEncoding));
    cipherChunks.push(cipher.final(cipherEncoding));
    console.log(cipherEncoding + ‘ ciphertext: ‘ 
+ cipherChunks.join(‘‘));
/*解密*/
    var 
decipher = crypto.createDecipher(algorithm, key);
    var 
plainChunks = [];
    for 
(var 
i = 0;i < cipherChunks.length;i++) {
      plainChunks.push(decipher.update(cipherChunks[i], cipherEncoding, clearEncoding));
 
    }
    plainChunks.push(decipher.final(clearEncoding));
    console.log("UTF8 plaintext deciphered: " 
+ plainChunks.join(‘‘));

　的确，没错~~加密解密成功。但是和java，C#中加密出来的不一样啊。神啊。

我想，大家都在这里纠结着吧~~对不对。其实只要加个向量，就可以和一致了。网上搜索出来的资源太少。才让自己纠结那么久。好吧，正确代码是：

var 
crypto = require(‘crypto‘);
 
   var 
data = "156156165152165156156";
   console.log(‘Original cleartext: ‘ 
+ data);
   var 
algorithm = ‘aes-128-ecb‘;
   var 
key = ‘78541561566‘;
   var 
clearEncoding = ‘utf8‘;
   var 
iv = "";
   //var cipherEncoding = ‘hex‘;
   //If the next line is uncommented, the final cleartext is wrong.
   var 
cipherEncoding = ‘base64‘;
   var 
cipher = crypto.createCipheriv(algorithm, key,iv);
 
   var 
cipherChunks = [];
   cipherChunks.push(cipher.update(data, clearEncoding, cipherEncoding));
   cipherChunks.push(cipher.final(cipherEncoding));
   console.log(cipherEncoding + ‘ ciphertext: ‘ 
+ cipherChunks.join(‘‘));
 
   var 
decipher = crypto.createDecipheriv(algorithm, key,iv);
   var 
plainChunks = [];
   for 
(var 
i = 0;i < cipherChunks.length;i++) {
     plainChunks.push(decipher.update(cipherChunks[i], cipherEncoding, clearEncoding));
 
   }
   plainChunks.push(decipher.final(clearEncoding));
   console.log("UTF8 plaintext deciphered: " 
+ plainChunks.join(‘‘));