On Thu, Jul 28, 2005, coco coco wrote:

> >
> >Just found a link which may help:
> >
> >http://www.thawte.com/support/code/msauth.html#timestamp
> >
> 
> Thanks a lot. Sorry to sound like a dumbass, but how do I put that 
> information into the certificate when I signed it? :) I mean, how do I 
> specify the URL of the tsa, which extension to use ?
> 

You don't. The timestamp URL is something you use on the command line of the
relevant authenticode signing tool. It then queries the timestamp server gets
a timestamp back and includes it in the signed object.

The whole point of a timestamp is to ensure that signed objects still work
after the certificate has expired by providing assurance that they were signed
at or before a stated time. 

> If someone could give an ASN.1 def of a MS authenticode cert, that would 
> help too.

There's all sorts of extraneous garbage in some of the official authenticode
certificates. You don't need any of it.

Steve.
--
Dr Stephen N. Henson. Email, S/MIME and PGP keys: see homepage
OpenSSL project core developer and freelance consultant.
Funding needed! Details on homepage.
Homepage: http://www.drh-consultancy.demon.co.uk
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