Re: Verify signature unsing X509Certificate

From: casey chesnut (casey_at_SPAM_SPAMbrains-N-brawn.com)
Date: 10/24/03 

Date: Thu, 23 Oct 2003 17:44:46 -0500

Thanks Michel,
I was about to ask this same question.
casey

"Michel Gallant" <neutron@nspxistar.ca> wrote in message
news:%23iu770YmDHA.3316@tk2msftngp13.phx.gbl...
> Here is a sample, showing how to decode any X509 certificate
> and extract public key parameters for use via .NET:
> http://pages.istar.ca/~neutron/feature/decodecertkey
>
> An article to be published at MSDN Security Centre in ~ 1 week
> will greatly expand on this.
>
> - Michel Gallant
> Visual Security MVP
>
> "stephan" <stephan.boecker@sap.com> wrote in message
news:016601c39985$33c47900$a301280a@phx.gbl...
> > Hi, I want to verify a digital signature on a message and
> > the only thing I have is the X509Certificate. If I want to
> > use any of the AsymmetricSignatureDeformatter objects to
> > call VerifySignature I wil have to provide the underlying
> > CryptoServiceProvider class where it seems I can import
> > parameters as a class to specify my public key .
> > My question is: how do I feed these parameter classes from
> > my certificate? the only thing I have is the public key as
> > byte[] ?
> >
> > Can you help?
>
>

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