Xiaolin Zhao
7a4a4d6bea
Benchmark results on Loongson-3C6000 @ 2.20GHz:
goos: linux
goarch: loong64
pkg: golang.org/x/crypto/salsa20
cpu: Loongson-3C6000/S @ 2200.00MHz
| old.bench | new.bench |
| sec/op | sec/op vs base |
XOR1K 3835.5n ± 0% 493.9n ± 0% -87.12% (p=0.000 n=10)
| old.bench | new.bench |
| B/s | B/s vs base |
XOR1K 254.6Mi ± 0% 1977.4Mi ± 0% +676.64% (p=0.000 n=10)
Change-Id: I9f795e7f4e2c467ba9a41c9e6f460612536021ba
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/683255
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
32 lines
1.0 KiB
Go
32 lines
1.0 KiB
Go
// Copyright 2019 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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//go:build (amd64 || loong64) && !purego && gc
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package salsa
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import (
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"bytes"
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"testing"
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)
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func TestCounterOverflow(t *testing.T) {
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in := make([]byte, 4096)
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key := &[32]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5,
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6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2}
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for n, counter := range []*[16]byte{
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&[16]byte{0, 1, 2, 3, 4, 5, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0}, // zero counter
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&[16]byte{0, 1, 2, 3, 4, 5, 6, 7, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff}, // counter about to overflow 32 bits
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&[16]byte{0, 1, 2, 3, 4, 5, 6, 7, 1, 2, 3, 4, 0xff, 0xff, 0xff, 0xff}, // counter above 32 bits
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} {
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out := make([]byte, 4096)
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XORKeyStream(out, in, counter, key)
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outGeneric := make([]byte, 4096)
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genericXORKeyStream(outGeneric, in, counter, key)
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if !bytes.Equal(out, outGeneric) {
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t.Errorf("%d: assembly and go implementations disagree", n)
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}
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}
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}
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