137 lines
3.3 KiB
Go
137 lines
3.3 KiB
Go
// Copyright 2013 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 in the LICENSE file.
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package cipher_test
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import (
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"crypto/aes"
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"crypto/cipher"
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"strconv"
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"testing"
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)
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func benchmarkAESGCMSeal(b *testing.B, buf []byte, keySize int) {
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b.ReportAllocs()
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b.SetBytes(int64(len(buf)))
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var key = make([]byte, keySize)
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var nonce [12]byte
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var ad [13]byte
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aes, _ := aes.NewCipher(key[:])
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aesgcm, _ := cipher.NewGCM(aes)
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var out []byte
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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out = aesgcm.Seal(out[:0], nonce[:], buf, ad[:])
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}
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}
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func benchmarkAESGCMOpen(b *testing.B, buf []byte, keySize int) {
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b.ReportAllocs()
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b.SetBytes(int64(len(buf)))
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var key = make([]byte, keySize)
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var nonce [12]byte
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var ad [13]byte
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aes, _ := aes.NewCipher(key[:])
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aesgcm, _ := cipher.NewGCM(aes)
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var out []byte
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ct := aesgcm.Seal(nil, nonce[:], buf[:], ad[:])
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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out, _ = aesgcm.Open(out[:0], nonce[:], ct, ad[:])
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}
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}
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func BenchmarkAESGCM(b *testing.B) {
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for _, length := range []int{64, 1350, 8 * 1024} {
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b.Run("Open-128-"+strconv.Itoa(length), func(b *testing.B) {
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benchmarkAESGCMOpen(b, make([]byte, length), 128/8)
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})
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b.Run("Seal-128-"+strconv.Itoa(length), func(b *testing.B) {
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benchmarkAESGCMSeal(b, make([]byte, length), 128/8)
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})
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b.Run("Open-256-"+strconv.Itoa(length), func(b *testing.B) {
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benchmarkAESGCMOpen(b, make([]byte, length), 256/8)
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})
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b.Run("Seal-256-"+strconv.Itoa(length), func(b *testing.B) {
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benchmarkAESGCMSeal(b, make([]byte, length), 256/8)
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})
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}
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}
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func benchmarkAESStream(b *testing.B, mode func(cipher.Block, []byte) cipher.Stream, buf []byte) {
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b.SetBytes(int64(len(buf)))
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var key [16]byte
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var iv [16]byte
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aes, _ := aes.NewCipher(key[:])
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stream := mode(aes, iv[:])
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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stream.XORKeyStream(buf, buf)
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}
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}
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// If we test exactly 1K blocks, we would generate exact multiples of
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// the cipher's block size, and the cipher stream fragments would
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// always be wordsize aligned, whereas non-aligned is a more typical
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// use-case.
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const almost1K = 1024 - 5
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const almost8K = 8*1024 - 5
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func BenchmarkAESCFBEncrypt1K(b *testing.B) {
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benchmarkAESStream(b, cipher.NewCFBEncrypter, make([]byte, almost1K))
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}
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func BenchmarkAESCFBDecrypt1K(b *testing.B) {
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benchmarkAESStream(b, cipher.NewCFBDecrypter, make([]byte, almost1K))
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}
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func BenchmarkAESCFBDecrypt8K(b *testing.B) {
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benchmarkAESStream(b, cipher.NewCFBDecrypter, make([]byte, almost8K))
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}
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func BenchmarkAESOFB1K(b *testing.B) {
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benchmarkAESStream(b, cipher.NewOFB, make([]byte, almost1K))
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}
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func BenchmarkAESCTR1K(b *testing.B) {
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benchmarkAESStream(b, cipher.NewCTR, make([]byte, almost1K))
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}
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func BenchmarkAESCTR8K(b *testing.B) {
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benchmarkAESStream(b, cipher.NewCTR, make([]byte, almost8K))
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}
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func BenchmarkAESCBCEncrypt1K(b *testing.B) {
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buf := make([]byte, 1024)
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b.SetBytes(int64(len(buf)))
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var key [16]byte
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var iv [16]byte
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aes, _ := aes.NewCipher(key[:])
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cbc := cipher.NewCBCEncrypter(aes, iv[:])
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for i := 0; i < b.N; i++ {
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cbc.CryptBlocks(buf, buf)
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}
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}
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func BenchmarkAESCBCDecrypt1K(b *testing.B) {
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buf := make([]byte, 1024)
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b.SetBytes(int64(len(buf)))
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var key [16]byte
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var iv [16]byte
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aes, _ := aes.NewCipher(key[:])
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cbc := cipher.NewCBCDecrypter(aes, iv[:])
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for i := 0; i < b.N; i++ {
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cbc.CryptBlocks(buf, buf)
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}
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}
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