Returns the octet string representation of the elliptic curve point.
conversion_form specifies how the point is converted. Possible values are:
:compressed
:uncompressed
:hybrid
Removes a possibility from ‘self` @return [PossibilityState] a state with a single possibility,
the possibility that was removed from `self`
For debugging output
Create a new session id.
The session id is a secure random number by SecureRandom
if possible, otherwise an SHA512 hash based upon the time, a random number, and a constant string. This routine is used internally for automatically generated session ids.