This will allow RRSIG.Sign to use generic crypto.Signer implementations.
This is a interface breaking change, even if the required changes are most
likely just type asserions from crypto.PrivateKey to the underlying type or
crypto.Signer.
Added a bunch a long running test function to the list of skipped
tests when giving -short to go test. Tests are bascially *all*
DNSSEC key generation tests and 1 serving test.
PASS
ok github.com/miekg/dns 0.782s
Compared to 13+ s, so quite a bit faster.
Tests message signing and verification against
itself, that altered messages don't pass and that
expired messages don't pass.
Static samples generated by something else would
be good to add at some point.