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Implemented a gRPC server to call the Stone prover from a remote client.
This server provides a single endpoint at the moment,
Prove
, whichreturns the proof. The protocol uses server-side streaming to
communicate the proof to the client once it is computed.
This server is still limited, the following points need to be discussed:
Efficiency: the protocol passes JSON data (public input, prover config
and parameters) as raw strings. These strings are then deserialized on
server-side to validate them, but end up being serialized again for
use by the prover process. This is clearly inefficient.
Even if the client process cancels the request, the prover will keep
on running until the proof is generated.