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https://github.com/fluencelabs/tendermint
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0bd4fb96f0
* crypto: Add benchmarking code for signature schemes This does a slight refactor for the key generation code. It now calls a seperate unexported method to allow generation from a reader. I think this will actually reduce time in generation, due to no longer initializing an extra slice. This was needed in order to enable benchmarking. This uses an internal package for the benchmarking code, so that this can be standardized without being exported in the public API. The benchmarking code is derived from agl/ed25519's benchmarking code, and has copied the license over. Closes #1984
89 lines
3.0 KiB
Go
89 lines
3.0 KiB
Go
package benchmarking
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import (
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"io"
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"testing"
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"github.com/tendermint/tendermint/crypto"
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)
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// The code in this file is adapted from agl/ed25519.
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// As such it is under the following license.
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// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found at the bottom of this file.
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type zeroReader struct{}
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func (zeroReader) Read(buf []byte) (int, error) {
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for i := range buf {
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buf[i] = 0
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}
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return len(buf), nil
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}
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// BenchmarkKeyGeneration benchmarks the given key generation algorithm using
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// a dummy reader.
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func BenchmarkKeyGeneration(b *testing.B, GenerateKey func(reader io.Reader) crypto.PrivKey) {
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var zero zeroReader
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for i := 0; i < b.N; i++ {
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GenerateKey(zero)
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}
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}
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// BenchmarkSigning benchmarks the given signing algorithm using
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// the provided privkey.
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func BenchmarkSigning(b *testing.B, priv crypto.PrivKey) {
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message := []byte("Hello, world!")
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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priv.Sign(message)
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}
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}
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// BenchmarkVerification benchmarks the given verification algorithm using
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// the provided privkey on a constant message.
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func BenchmarkVerification(b *testing.B, priv crypto.PrivKey) {
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pub := priv.PubKey()
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// use a short message, so this time doesn't get dominated by hashing.
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message := []byte("Hello, world!")
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signature, err := priv.Sign(message)
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if err != nil {
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b.Fatal(err)
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}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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pub.VerifyBytes(message, signature)
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}
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}
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// Below is the aforementioned license.
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// Copyright (c) 2012 The Go Authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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