Does a secret key need to be signed?

[Christoph Anton Mitterer]

Kurt Fitzner wrote:

>My question is, does a secret key actually need to be signed?
>  
>
Correct me if I'm wrong, but _secret_ keys are never selfsigned, at
least not under normal circumstances...
Perhaps it is allowed to sign it with a 0x1F but I'd have to look this
up in the standard,...

It wouldn't even make sense,...

Chris.