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package benchmarking
import (
"io"
"testing"
"github.com/tendermint/tendermint/crypto"
)
// The code in this file is adapted from agl/ed25519.
// As such it is under the following license.
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found at the bottom of this file.
type zeroReader struct{}
func (zeroReader) Read(buf []byte) (int, error) {
for i := range buf {
buf[i] = 0
}
return len(buf), nil
}
// BenchmarkKeyGeneration benchmarks the given key generation algorithm using
// a dummy reader.
func BenchmarkKeyGeneration(b *testing.B, generateKey func(reader io.Reader) crypto.PrivKey) {
var zero zeroReader
for i := 0; i < b.N; i++ {
generateKey(zero)
}
}
// BenchmarkSigning benchmarks the given signing algorithm using
// the provided privkey.
func BenchmarkSigning(b *testing.B, priv crypto.PrivKey) {
message := []byte("Hello, world!")
b.ResetTimer()
for i := 0; i < b.N; i++ {
priv.Sign(message)
}
}
// BenchmarkVerification benchmarks the given verification algorithm using
// the provided privkey on a constant message.
func BenchmarkVerification(b *testing.B, priv crypto.PrivKey) {
pub := priv.PubKey()
// use a short message, so this time doesn't get dominated by hashing.
message := []byte("Hello, world!")
signature, err := priv.Sign(message)
if err != nil {
b.Fatal(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
pub.VerifyBytes(message, signature)
}
}
// Below is the aforementioned license.
// Copyright (c) 2012 The Go Authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.