@return [ResolutionState] the state whose ‘requirement` is the given
`requirement`.
@param [String] requirement_name the spec name to search for @return [Object] the locked spec named ‘requirement_name`, if one
is found on {#base}
Returns the configuration instance variables as a hash, that can be passed to the configure method.
Returns the order of the group.
See the OpenSSL
documentation for EC_GROUP_get_order()
See the OpenSSL
documentation for EC_GROUP_get_degree()