W3C home > Mailing lists > Public > www-xkms@w3.org > February 2006

Re: Can we place time stamp information inside an XKMS response

From: Vicente D. Guardiola Buitrago <vicente@dif.um.es>
Date: Wed, 1 Feb 2006 15:25:00 +0100
Message-ID: <20060201152500.ccnoix7qwqn4k444@aries.dif.um.es>
To: Wahaj Khan <wahaj.khan@ascertia.com>
Cc: www-xkms@w3.org

Hello,

Well, you can use the MessageExtension provided for Tommy Lindberg in 
his reply,
and change the dateTime type of the new element for a base64 type:

  <complexType name="TimestampType">
    <complexContent>
      <extension base="xkms:MessageExtensionAbstractType">
        <sequence>
          <element name="DateAndTime" type="base64"/>
        </sequence>
      </extension>
    </complexContent>
  </complexType>

What do you think Tommy?

Regards,
Vicente

Quoting Wahaj Khan <wahaj.khan@ascertia.com>:

> Hi,
>
> Thanks for replying. Well I was basically referring to RFC3161 Time 
> Stamp Response. So the idea is this, I generate the complete XKMS 
> Response, I then create a hash of it and send it to a Time Stamp 
> Authority Server which sends me the time stamp response. After 
> verifying the TimeStamp response, I insert it inside the XKMS 
> response. It has to be inserted in a section such that the XKMS 
> Response doesn't get invalidated. Note that in PKCS7 we have 
> un-authenticated attributes where such information could be placed. 
> Is there any such XML element where I can place the Time Stamp 
> response information in Base64 format ?
>
> Regards,
> Wahaj
>
> ----- Original Message -----
> From: "Vicente D. Guardiola Buitrago" <vicente@dif.um.es>
> To: "Wahaj Khan" <wahaj.khan@ascertia.com>
> Cc: <www-xkms@w3.org>
> Sent: Wednesday, February 01, 2006 1:18 PM
> Subject: Re: Can we place time stamp information inside an XKMS response
>
>
>
> Hi Wahaj,
>
> I think you could do this using the <MessageExtension> element (Section
> 3.1.3).
> This element is intended to afford that kind of particular 
> necessities, and by
> using it your server will still be usable by any XKMS client.
>
> This is only my thinking, I don't know if someone has afforded this
> problem with
> another idea.
>
> Regards,
>
> --
> Vicente Guardiola
> Departamento de Ingeniería de la Información y las Comunicaciones
> University of Murcia
> Spain
>
>
> Quoting Wahaj Khan <wahaj.khan@ascertia.com>:
>
>> Hi All,
>>
>> I need to send signed XKMS responses to the client which is possible
>> as per the XKMS protocol. Can it be possible that I also include a
>> Timestamp information in the XKMS response. If yes then in which XKMS
>> response XML element this timestamp information can go.
>>
>> Best Regards,
>> Wahaj
>>
>
>
>
>



-- 
Vicente Guardiola
Universidad de Murcia
Received on Wednesday, 1 February 2006 14:25:11 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Thursday, 20 September 2007 14:31:06 GMT