"known in advance" public key authentication?

[Nikos Mavrogiannopoulos]

On 11/07/2012 10:52 PM, Florian Weimer wrote:


> Make sure your certificates are valid X.509v3.  GNUTLS is extremely
> forgiving, and if you've got a widely deployed certificate which
> cannot be used with Java (for instance), this can be annoying.


What do you mean by valid X.509v3? I suppose even the authors of X.509
wouldn't even know what that means :) Anything we could improve?

regards,
Nikos