ceremonyclient/nekryptology/pkg/tecdsa/dkls/v0/dkg_test.go

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2023-07-05 05:32:28 +00:00
//
// Copyright Coinbase, Inc. All Rights Reserved.
//
// SPDX-License-Identifier: Apache-2.0
//
package v0
import (
"fmt"
"testing"
"github.com/btcsuite/btcd/btcec"
"github.com/stretchr/testify/require"
"source.quilibrium.com/quilibrium/monorepo/nekryptology/pkg/core/curves"
)
func testDKG(alice *Alice, bob *Bob, alicePipe *pipeWrapper, bobPipe *pipeWrapper) error {
errors := make(chan error, 2)
go func() {
errors <- alice.DKG(alicePipe)
}()
go func() {
errors <- bob.DKG(bobPipe)
}()
for i := 0; i < 2; i++ {
if err := <-errors; err != nil {
return err // leakage? what if the second goroutine is "suspended"?
}
}
return verifyOt(alice, bob)
}
func TestDKG(t *testing.T) {
params, err := NewParams(btcec.S256(), curves.NewK256Scalar())
require.Nil(t, err)
alice := NewAlice(params)
bob := NewBob(params)
alicePipe, bobPipe := NewPipeWrappers()
require.Nil(t, testDKG(alice, bob, alicePipe, bobPipe))
}
func BenchmarkDKG(b *testing.B) {
if testing.Short() {
b.SkipNow()
}
params, err := NewParams(btcec.S256(), curves.NewK256Scalar())
require.Nil(b, err)
alice := NewAlice(params)
bob := NewBob(params)
b.ResetTimer()
bytes := 0
for n := 0; n < b.N; n++ {
alicePipe, bobPipe := NewPipeWrappers()
require.Nil(b, testDKG(alice, bob, alicePipe, bobPipe))
bytes += alicePipe.exchanged
}
b.ReportMetric(float64(bytes)/float64(b.N), "bytes/op")
}
// Verify correctness of the OT subprotocol after DKG has completed
func verifyOt(alice *Alice, bob *Bob) error {
for i := 0; i < kappa; i++ {
if alice.Receiver.Rho[i] != bob.Sender.Rho[i][alice.Receiver.choice[i]] {
return fmt.Errorf("oblivious transfer is incorrect at index i=%v", i)
}
}
return nil
}