Hi Karel !
> ... which also means that my name under this email is a proper electronic
> signature.
Yes, if your name is a valid hash of your message and I can find it in a special database under a proper key ... that would convince me !
> Advanced Electronic Signatures and Qualified Signatures are what DSS is targeting, I guess ?
Of course they are in the focus, but a signing service should not be limited to it.
Despite having no experience with "digest signatures" it seems to be an intersting solution. As a tradeoff for the need of online access you need just ONE crypto algorithm ( the hash ) that weakens over time .. Timestamping is included .. Archiving is in the concept right from the start ...
> So to include "digest signatures", you'll need some other motivation too.
I would need some other motivation to exlude "digest signatures" !
To design a good service interface that can stand the test of time is always a difficult task. I don't think it's a good approach to narrow its operational area just because one technique today is more common than another.
Greetings
Andreas
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