Nodejs AES加密不一致問題的解決

　　最近在做android游戲，客戶端與Nodejs服務端數據的交互用AES進行加密，發現Nodejs與java的加密形式不一樣。查詢N久資料發現java端需要對密鑰再MD5加密一遍（我了個大擦），本來對加密一類就陌生，這。。。

　　下面把nodejs 和 JAVA的代碼貼這了

JAVA：

package com.LOLnet;
import java.security.MessageDigest;  
  
import javax.crypto.Cipher;  
import javax.crypto.spec.SecretKeySpec;  
  
public class AESForNodejs {  
    public static final String DEFAULT_CODING = "utf-8";  
  
    //解密
    public static String decrypt(String encrypted, String seed) throws Exception {  
        byte[] keyb = seed.getBytes(DEFAULT_CODING);  
        MessageDigest md = MessageDigest.getInstance("MD5");  
        byte[] thedigest = md.digest(keyb);  
        SecretKeySpec skey = new SecretKeySpec(thedigest, "AES");  
        Cipher dcipher = Cipher.getInstance("AES");  
        dcipher.init(Cipher.DECRYPT_MODE, skey);  
  
        byte[] clearbyte = dcipher.doFinal(toByte(encrypted));  
        return new String(clearbyte);  
    }  
  
    //加密
    public static String encrypt(String content, String key) throws Exception {  
        byte[] input = content.getBytes(DEFAULT_CODING);  
          
        MessageDigest md = MessageDigest.getInstance("MD5");  
        byte[] thedigest = md.digest(key.getBytes(DEFAULT_CODING));  
        SecretKeySpec skc = new SecretKeySpec(thedigest, "AES");  
        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");  
        cipher.init(Cipher.ENCRYPT_MODE, skc);  
          
        byte[] cipherText = new byte[cipher.getOutputSize(input.length)];  
        int ctLength = cipher.update(input, 0, input.length, cipherText, 0);  
        ctLength += cipher.doFinal(cipherText, ctLength);  
              
        return parseByte2HexStr(cipherText);  
    }  
      
    //字符串轉字節
    private static byte[] toByte(String hexString) {  
        int len = hexString.length() / 2;  
        byte[] result = new byte[len];  
        for (int i = 0; i < len; i++) {  
            result[i] = Integer.valueOf(hexString.substring(2 * i, 2 * i + 2), 16).byteValue();  
        }  
        return result;  
    }  
      
    
    //字節轉16進制數組     
    private static String parseByte2HexStr(byte buf[]) {  
        StringBuffer sb = new StringBuffer();  
        for (int i = 0; i < buf.length; i++) {  
            String hex = Integer.toHexString(buf[i] & 0xFF);  
            if (hex.length() == 1) {  
                hex = '0' + hex;  
            }  
            sb.append(hex);  
        }  
        return sb.toString();  
    }  
}  

 

 

Node：

/**
 * Created with JetBrains WebStorm.
 * User: rube
 * Date: 4/7/14
 * Time: 4:33 PM
 * To change this template use File | Settings | File Templates.
 */
var crypto = require('crypto');

/**
 * aes128加密
 * @param data     明文
 * @param secretKey  密鑰
 * @returns {*}
 */
exports.encrypt = function (data, secretKey) {
    var cipher = crypto.createCipher('aes-128-ecb',secretKey);
    return cipher.update(data,'utf8','hex') + cipher.final('hex');
};

/**
 * aes128解密
 * @param data        密文
 * @param secretKey     密鑰
 * @returns {*}
 */
exports.decrypt = function(data, secretKey) {
    var cipher = crypto.createDecipher('aes-128-ecb',secretKey);
    return cipher.update(data,'hex','utf8') + cipher.final('utf8');
}

 

google了一天頭好疼啊～