55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
// Copyright 2018 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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// +build amd64 arm64 ppc64le
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package elliptic
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import (
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"crypto/rand"
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"testing"
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"time"
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)
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func TestFuzz(t *testing.T) {
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p256 := P256()
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p256Generic := p256.Params()
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var scalar1 [32]byte
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var scalar2 [32]byte
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var timeout *time.Timer
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if testing.Short() {
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timeout = time.NewTimer(10 * time.Millisecond)
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} else {
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timeout = time.NewTimer(2 * time.Second)
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}
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for {
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select {
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case <-timeout.C:
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return
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default:
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}
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rand.Read(scalar1[:])
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rand.Read(scalar2[:])
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x, y := p256.ScalarBaseMult(scalar1[:])
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x2, y2 := p256Generic.ScalarBaseMult(scalar1[:])
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xx, yy := p256.ScalarMult(x, y, scalar2[:])
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xx2, yy2 := p256Generic.ScalarMult(x2, y2, scalar2[:])
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if x.Cmp(x2) != 0 || y.Cmp(y2) != 0 {
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t.Fatalf("ScalarBaseMult does not match reference result with scalar: %x, please report this error to security@golang.org", scalar1)
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}
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if xx.Cmp(xx2) != 0 || yy.Cmp(yy2) != 0 {
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t.Fatalf("ScalarMult does not match reference result with scalars: %x and %x, please report this error to security@golang.org", scalar1, scalar2)
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}
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}
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}
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