AES Android客户端加密，服务器解密出错Given final block not properly padded，求大神解救

[u010046041]

AES 在Android客户端加密，服务器解密报错javax.crypto.BadPaddingException: Given final block not properly padded
客户端：

	/**
     * 加密
    */
   public static String encrypt( List<NameValuePair> contentList) throws Exception {      
           byte[] rawKey = getRawKey(key.getBytes());      
           byte[] result = encrypt(rawKey, contentList.toString().getBytes("UTF-8"));     
           Log.e("加密", "result:"+toHex(result));
           return toHex(result);      
       }      
   
   private static byte[] encrypt(byte[] raw, byte[] clear) throws Exception {      
       SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");      
       Cipher cipher = Cipher.getInstance("AES");      
       cipher.init(Cipher.ENCRYPT_MODE, skeySpec);      
       byte[] encrypted = cipher.doFinal(clear);      
       return encrypted;      
   }   
 
   public static String toHex(byte[] buf) {      
       if (buf == null)      
           return "";      
       StringBuffer result = new StringBuffer(2*buf.length);    
       System.out.println(2*buf.length);
       for (int i = 0; i < buf.length; i++) {      
           appendHex(result, buf[i]);      
       }      
       return result.toString();     
	   
   }      

   private final static String HEX = "0123456789ABCDEF";      
   private static void appendHex(StringBuffer sb, byte b) {      
       sb.append(HEX.charAt((b>>4)&0x0f)).append(HEX.charAt(b&0x0f));      
   }   

服务器：

/**
    * 解密
   */
      public static String decrypt(String seed, String encrypted) throws Exception {      
           byte[] rawKey = getRawKey(seed.getBytes());      
           byte[] enc = toByte(encrypted);      
           byte[] result = decrypt(rawKey, enc);      
           return new String(result,"UTF-8");      
       }    

      public 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;      
      }   
   
       private static byte[] decrypt(byte[] raw, byte[] encrypted) throws Exception {      
           SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");      
           Cipher cipher = Cipher.getInstance("AES");      
           cipher.init(Cipher.DECRYPT_MODE, skeySpec);      
           byte[] decrypted = cipher.doFinal(encrypted);      
           return decrypted;      
       }      

       private static byte[] getRawKey(byte[] seed) throws Exception {      
           KeyGenerator kgen = KeyGenerator.getInstance("AES");      
           SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");      
           sr.setSeed(seed);      
           kgen.init(128, sr); // 192 and 256 bits may not be available      
           SecretKey skey = kgen.generateKey();      
           byte[] raw = skey.getEncoded();      
           return raw;    
    	   
       }      

报错：
javax.crypto.BadPaddingException: Given final block not properly padded
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
at com.sun.crypto.provider.AESCipher.engineDoFinal(DashoA13*..)
at javax.crypto.Cipher.doFinal(DashoA13*..)

[cchvsgame]

算法不一致的

[Silence-boby]

这个问题解决了么？求答案 我安卓加好服务端也不能解，主要是秘钥写的256位的用了KeyGenerator就会出错，直接使用SecretKeySpec生成就不会出错