what is the use of signing keys?

[Ingo Klöcker]

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On Saturday 13 October 2001 13:16, Owen Blacker wrote:
> Mark Brown wrote (2001-10-13 T 03:07 +0100):
> > > So I have a signing key, with no encryption component, so I know
> > > that it can't be seized under any circumstances.
> >
> > Is there anything technical preventing the signature key from being
> > used for encryption other than stuff like option flags?
>
> The key has no encryption subkey, it was revoked immediately on
> creation.

Why didn't you simply remove the encryption sub key after key creation?
And why didn't you simply generate a DSA (sign only) key in the first 
place instead of a DSA/ElGamal key?

Please excuse my curiosity.

Regards,
Ingo
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