Signer ignores PSS #86
Description
On both windows and darwin, using the Signer of an Identity object as a private key of a TLS certificate doesn't work against a server that requires TLS v1.3.
In this case, a GO TLS server, for example, returns an "error decrypting message" error due to missing 0xbc at the end of the signature during the handshake. The reason for this is not using the padding scheme when signing the digest.