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crypto/ted25519/frost/round1.go

@@ -1,78 +0,0 @@
-//
-// Copyright Coinbase, Inc. All Rights Reserved.
-//
-// SPDX-License-Identifier: Apache-2.0
-//
-
-package frost
-
-import (
-	"bytes"
-	crand "crypto/rand"
-	"encoding/gob"
-
-	"github.com/pkg/errors"
-
-	"github.com/onsonr/hway/crypto/core/curves"
-	"github.com/onsonr/hway/crypto/internal"
-)
-
-// Round1Bcast contains values to be broadcast to all players after the completion of signing round 1.
-type Round1Bcast struct {
-	Di, Ei curves.Point
-}
-
-func (result *Round1Bcast) Encode() ([]byte, error) {
-	gob.Register(result.Di) // just the point for now
-	gob.Register(result.Ei)
-	buf := &bytes.Buffer{}
-	enc := gob.NewEncoder(buf)
-	if err := enc.Encode(result); err != nil {
-		return nil, errors.Wrap(err, "couldn't encode round 1 broadcast")
-	}
-	return buf.Bytes(), nil
-}
-
-func (result *Round1Bcast) Decode(input []byte) error {
-	buf := bytes.NewBuffer(input)
-	dec := gob.NewDecoder(buf)
-	if err := dec.Decode(result); err != nil {
-		return errors.Wrap(err, "couldn't encode round 1 broadcast")
-	}
-	return nil
-}
-
-func (signer *Signer) SignRound1() (*Round1Bcast, error) {
-	// Make sure signer is not empty
-	if signer == nil || signer.curve == nil {
-		return nil, internal.ErrNilArguments
-	}
-
-	// Make sure round number is correct
-	if signer.round != 1 {
-		return nil, internal.ErrInvalidRound
-	}
-
-	// Step 1 - Sample di, ei
-	di := signer.curve.Scalar.Random(crand.Reader)
-
-	ei := signer.curve.Scalar.Random(crand.Reader)
-
-	// Step 2 - Compute Di, Ei
-	Di := signer.curve.ScalarBaseMult(di)
-
-	Ei := signer.curve.ScalarBaseMult(ei)
-
-	// Update round number
-	signer.round = 2
-
-	// Store di, ei, Di, Ei locally and broadcast Di, Ei
-	signer.state.capD = Di
-	signer.state.capE = Ei
-	signer.state.smallD = di
-	signer.state.smallE = ei
-	return &Round1Bcast{
-		Di,
-		Ei,
-	}, nil
-}