Re: About Wrap Key

[Rio]

Hi
    yes, I didn't use the IV for my test case
  ----- Original Message ----- 
  From: Vishal Mahajan 
  To: security-dev@xml.apache.org 
  Sent: Thursday, September 27, 2007 1:55 PM
  Subject: Re: About Wrap Key


  When using TripleDES the resulting cipher text is prefixed by an 
Initialization Vector (IV) which is probably different for the two different 
wrap operations. Did you try and unwrap/decrypt the wrapped key in the two 
cases and see if that results back in the same key?

  Vishal

  on 09/26/2007 5:36 PM Rio wrote:


    Hi,
            I found a problem as follows

            Key toBeWrappedKey = Generator("DESede", 168);       
            Key wrapKey = Generator("DESede", 112);   


            Cipher cipher = Cipher.getInstance("DESede/CBC/ISO10126Padding");
            cipher.init(Cipher.WRAP_MODE, wrapKey);
            byte[] wrappedKey = cipher.wrap(toBeWrappedKey);
            System.out.println(new String(wrappedKey));  // result 1
         
            
            XMLCipher xcipher = XMLCipher.getInstance(XMLCipher.TRIPLEDES);
            xcipher.init(XMLCipher.WRAP_MODE, wrapKey);
            EncryptedKey ek = xcipher.encryptKey(getEncryptedData(), 
toBeWrappedKey);
            byte[] wrappedKey2 = 
Base64.decode(ek.getCipherData().getCipherValue().getValue().getBytes());
            System.out.println(new String(wrappedKey2));   // result 2



            Why the 2 results are different ?


    Thanks