Thanks a lot for the response, Chang.

I was refering more to the data encrypted in the
payload of a SOAP message (thereby the AES in the
title), although I have noticed that the encryptedKey
is also different each time.

The reason efectively seems that is what you said:
random numbers.

Respect to the payload, after looking at the source
code, seems that the JDK class javax.crypto.Chipher
generates a random IV. I don't know if there is a way
to generate a fixed IV.

Respect to the encryptedKey, seems that is the padding

what is generated randomly.

I have read that this is so for security reasons,
which makes sense in a general case.

The problem of all that is that WSS4J doesn't decrypt
well the payload encrypted with the PHP's mcrypt
funcions, and I am trying to find the reason.

Best regards,

/Enric




--- CHANG Shuh <[EMAIL PROTECTED]> escribió:

> It's hard to say without knowing more about your
> scenario. However, there might be some clues for
> that. For example, in UsernameToken, there are two
> possible factors that could affect the outcome of
> the password digest (which may or may not be related
> to what you were referring to as encrypted data):
> random number (nonce) and timestamp (created). Each
> time you make a call, you would get a different
> nonce and timestamp, and therefore different
> password digest even though you use the same
> password each time...
> 
> Regards,
> Shuh
>  
> 
> > -----Original Message-----
> > From: Enric Jaen [mailto:[EMAIL PROTECTED] 
> > Sent: Monday, May 28, 2007 9:37 AM
> > To: wss4j-dev@ws.apache.org
> > Subject: RV: AES - newbie question
> > 
> > Sorry, just to clarify that this issue is
> happening with WSS4J.
> > /Enric
> > 
> > 
> > --- Enric Jaen <[EMAIL PROTECTED]> escribió:
> > 
> > > Fecha: Mon, 28 May 2007 09:31:19 +0200 (CEST)
> > > De: Enric Jaen <[EMAIL PROTECTED]>
> > > Asunto: AES - newbie question
> > > Para: wss4j-dev@ws.apache.org
> > > 
> > > 
> > > Hi, I am quite newbie about security and I have
> a simple question:
> > > 
> > > When encrypting the data I am forcing the same
> key, but I 
> > have noticed 
> > > that the encrypted data is different in each
> call. Shouldn't it be 
> > > always the same?
> > > 
> > > Thanks for any explanation,
> > > 
> > > /Enric
> > > 
> > > 
> > > 
> > > 
> > > 
> > >        
> > >
> >
>
______________________________________________________________
> > ______________________
> > > ¡Descubre una nueva forma de obtener respuestas
> a tus preguntas!
> > > Entra en Yahoo! Respuestas.
> > > http://es.answers.yahoo.com/info/welcome
> > > 
> > 
> > 
> > 
> >             
> > ______________________________________________
> > LLama Gratis a cualquier PC del Mundo. 
> > Llamadas a fijos y móviles desde 1 céntimo por
> minuto. 
> > http://es.voice.yahoo.com
> > 
> >
>
---------------------------------------------------------------------
> > To unsubscribe, e-mail:
> [EMAIL PROTECTED]
> > For additional commands, e-mail:
> [EMAIL PROTECTED]
> > 
> > 
> 



                
______________________________________________ 
LLama Gratis a cualquier PC del Mundo. 
Llamadas a fijos y móviles desde 1 céntimo por minuto. 
http://es.voice.yahoo.com

---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]

Reply via email to