// Package ottest contains some utilities to test ot functions. The main goal is to reduce the code duplication in // various other packages that need to run an OT in their test setup stage. package ottest import ( "github.com/pkg/errors" "source.quilibrium.com/quilibrium/monorepo/nekryptology/pkg/core/curves" "source.quilibrium.com/quilibrium/monorepo/nekryptology/pkg/ot/base/simplest" ) // RunSimplestOT is a utility function used _only_ during various tests. // essentially, it encapsulates the entire process of running a base OT, so that other tests can use it / bootstrap themselves. // it handles the creation of the base OT sender and receiver, as well as orchestrates the rounds on them; // it returns their outsputs, so that others can use them. func RunSimplestOT(curve *curves.Curve, batchSize int, uniqueSessionId [simplest.DigestSize]byte) (*simplest.SenderOutput, *simplest.ReceiverOutput, error) { receiver, err := simplest.NewReceiver(curve, batchSize, uniqueSessionId) if err != nil { return nil, nil, errors.Wrap(err, "constructing OT receiver in run simplest OT") } sender, err := simplest.NewSender(curve, batchSize, uniqueSessionId) if err != nil { return nil, nil, errors.Wrap(err, "constructing OT sender in run simplest OT") } proof, err := sender.Round1ComputeAndZkpToPublicKey() if err != nil { return nil, nil, errors.Wrap(err, "sender round 1 in run simplest OT") } receiversMaskedChoice, err := receiver.Round2VerifySchnorrAndPadTransfer(proof) if err != nil { return nil, nil, errors.Wrap(err, "receiver round 2 in run simplest OT") } challenge, err := sender.Round3PadTransfer(receiversMaskedChoice) if err != nil { return nil, nil, errors.Wrap(err, "sender round 3 in run simplest OT") } challengeResponse, err := receiver.Round4RespondToChallenge(challenge) if err != nil { return nil, nil, errors.Wrap(err, "receiver round 4 in run simplest OT") } challengeOpenings, err := sender.Round5Verify(challengeResponse) if err != nil { return nil, nil, errors.Wrap(err, "sender round 5 in run simplest OT") } err = receiver.Round6Verify(challengeOpenings) if err != nil { return nil, nil, errors.Wrap(err, "receiver round 6 in run simplest OT") } return sender.Output, receiver.Output, nil }