Get key size/name from a cipher which exists at the early state of handshake
Get key size/name from a cipher which exists at the early state of handshake

1. get of DH/ECDH parameters use the same method
2. in this way key size/name can be get during ongoing handshake

nabla-c0d3/nassl,nabla-c0d3/nassl,nabla-c0d3/nassl