basic hash signature question

[David Shaw]

On Fri, Mar 12, 2004 at 12:22:21AM +0100, Albert wrote:
> Am Donnerstag, 11. März 2004 23:35 schrieb David Shaw:
> 
> > > if someone doesn't have the signer's public key,
> > > is it still possible to verify the integrity of the signed
> > > file, even though one cannot verify the authenticity
> >
> > No.
> >
> > David
> 
> Is there a possibility to check with a webinterface? url?

Without the signer's public key, you can't do anything.  The math just
doesn't work that way.

You could set up a web page to check signatures, sure, but you're
assuming that web page is trustworthy and not compromised, etc.

David