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Subject: RE: [dss-x] Your views on Signed Verification Response profile requirements document

Dear Andreas, 

About this use case you suggested: sometime ago we defined a SAML assertion ("SignatureStatement") which includes new elements used in support of signature federations. Using these elements, the SAML asserting authority grants a relying party that a valid signature has been produced for a concrete purpose in a concrete jurisdiction, and proper evidence has been produced and is archived.

Please, find attached the document describing this "SAML Signature Statement".

Do you think it could be interesting to define a new "SignatureStatment" DSS profile? We think so...

Best regards,

-----Mensaje original-----
De: Andreas Kuehne [mailto:kuehne@trustable.de] 
Enviado el: domingo, 11 de noviembre de 2007 17:29
Para: Huehnlein, Detlef
CC: dss-x@lists.oasis-open.org
Asunto: Re: [dss-x] Your views on Signed Verification Response profile requirements document

Hi  Detlef,

> In a typical DSS-scenario (at least as I understood DSS so far) the 
> client will (at the moment he uses DSS) not be able to generate or 
> verify (the required type of) signatures, because otherwise he would 
> not use DSS at all.

I can think of an additional usecase :
The client knows how to verify a very limited set of signatures, bur 
needs to proof a certain signature outside its scope. So the client uses 
a trusted DSS verification server to do the verification. E. g. it's 
quite a hassle to be sure about the legal valie of a foreign signature 
even within the EU. So a verification service with proven authentity of 
the result seem useful to me.



Andreas Kühne
phone: +49 177 293 24 97
mailto: kuehne@trustable.de

Trustable Ltd.
Niederlassung Deutschland
Ströverstr. 18 - 59427 Unna
Amtsgericht Hamm HRB 5868

Andreas Kühne
Heiko Veit

Company UK
Company No: 5218868
Registered in England and Wales

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Signature Statement v1r0.pdf

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