Reads back what set_public_params() delivered. Encryption needs
only this, so a party that has it is self-sufficient, and any other
party that will encrypt under the same key — a querier that is not
itself a site, say — can be handed a copy.
Arguments
- site
a Site, or a user-defined subclass of RemoteSite.
- ...
method-specific arguments; the built-in method takes none.
Value
a PublicParams object.
Details
Aborts if the site was never configured, rather than returning
NULL for a caller to encrypt with.