RE: QUESTIONS ?

All,

[...]

> >> 2-Where is the time-stamp "horodatage" ,it exist?
> >
> > I've got the same question - how to include, in a standard 
> way, a time 
> > stamp in the CMS format? As a SignatureProperty, or what? Or maybe 
> > there is some XML time-stamp specification?
> 
> The W3 did not (yet?) create a spec how timestamps (or other 
> extensions) 
> have to be used in conjunction with XML Signature (guess that 
> XKMS uses 
> sort of timestamps internally). The european ETSI did create 
> a spec how to 
> create qualified signatures using XML:
> 
> 2001-09-25: Standard ETSI TS 101 203 - XML Advanced 
> Electronic Signatures 
> (XAdES) <http://portal.etsi.org/sec/el-sign.asp> by 
> cruellas@ac.upc.es. 
> This draft standard specifies the XML format for Advanced Electronic 
> Signatures satisfying the requirements defined in the 
> European Directive 
> for Electronic Signatures, and with long term validity. The 
> standard can be 
> found in STF178Task3Draft.pdf 
> <http://portal.etsi.org/sec/STF178Task3Draft.pdf>.

The specification has moved forward; the correct link is now
http://pda.etsi.org/pda/home.asp?wki_id=12532. Unfortunately you
have to register before being able to download, but they ask only
for an email address. I have contributed to this standard; so if 
you have any questions, feel free to ask.

A similar specification exists for incorporating useful properties
into CMS signatures. See http://pda.etsi.org/pda/home.asp?wki_id=12533.

Regards, Gregor