74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
// 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 in the LICENSE file.
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package secretbox
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import (
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"bytes"
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"crypto/rand"
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"encoding/hex"
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"testing"
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)
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func TestSealOpen(t *testing.T) {
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var key [32]byte
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var nonce [24]byte
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rand.Reader.Read(key[:])
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rand.Reader.Read(nonce[:])
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var box, opened []byte
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for msgLen := 0; msgLen < 128; msgLen += 17 {
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message := make([]byte, msgLen)
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rand.Reader.Read(message)
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box = Seal(box[:0], message, &nonce, &key)
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var ok bool
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opened, ok = Open(opened[:0], box, &nonce, &key)
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if !ok {
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t.Errorf("%d: failed to open box", msgLen)
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continue
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}
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if !bytes.Equal(opened, message) {
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t.Errorf("%d: got %x, expected %x", msgLen, opened, message)
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continue
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}
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}
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for i := range box {
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box[i] ^= 0x20
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_, ok := Open(opened[:0], box, &nonce, &key)
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if ok {
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t.Errorf("box was opened after corrupting byte %d", i)
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}
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box[i] ^= 0x20
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}
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}
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func TestSecretBox(t *testing.T) {
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var key [32]byte
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var nonce [24]byte
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var message [64]byte
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for i := range key[:] {
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key[i] = 1
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}
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for i := range nonce[:] {
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nonce[i] = 2
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}
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for i := range message[:] {
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message[i] = 3
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}
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box := Seal(nil, message[:], &nonce, &key)
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// expected was generated using the C implementation of NaCl.
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expected, _ := hex.DecodeString("8442bc313f4626f1359e3b50122b6ce6fe66ddfe7d39d14e637eb4fd5b45beadab55198df6ab5368439792a23c87db70acb6156dc5ef957ac04f6276cf6093b84be77ff0849cc33e34b7254d5a8f65ad")
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if !bytes.Equal(box, expected) {
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t.Fatalf("box didn't match, got\n%x\n, expected\n%x", box, expected)
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}
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}
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