You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
3.8 KiB
113 lines
3.8 KiB
package xchacha20poly1305
|
|
|
|
import (
|
|
"bytes"
|
|
crand "crypto/rand"
|
|
mrand "math/rand"
|
|
"testing"
|
|
)
|
|
|
|
// The following test is taken from
|
|
// https://github.com/golang/crypto/blob/master/chacha20poly1305/chacha20poly1305_test.go#L69
|
|
// It requires the below copyright notice, where "this source code" refers to the following function.
|
|
// Copyright 2016 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found at the bottom of this file.
|
|
func TestRandom(t *testing.T) {
|
|
// Some random tests to verify Open(Seal) == Plaintext
|
|
for i := 0; i < 256; i++ {
|
|
var nonce [24]byte
|
|
var key [32]byte
|
|
|
|
al := mrand.Intn(128)
|
|
pl := mrand.Intn(16384)
|
|
ad := make([]byte, al)
|
|
plaintext := make([]byte, pl)
|
|
_, err := crand.Read(key[:])
|
|
if err != nil {
|
|
t.Errorf("error on read: %w", err)
|
|
}
|
|
_, err = crand.Read(nonce[:])
|
|
if err != nil {
|
|
t.Errorf("error on read: %w", err)
|
|
}
|
|
_, err = crand.Read(ad)
|
|
if err != nil {
|
|
t.Errorf("error on read: %w", err)
|
|
}
|
|
_, err = crand.Read(plaintext)
|
|
if err != nil {
|
|
t.Errorf("error on read: %w", err)
|
|
}
|
|
|
|
aead, err := New(key[:])
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
ct := aead.Seal(nil, nonce[:], plaintext, ad)
|
|
|
|
plaintext2, err := aead.Open(nil, nonce[:], ct, ad)
|
|
if err != nil {
|
|
t.Errorf("random #%d: Open failed", i)
|
|
continue
|
|
}
|
|
|
|
if !bytes.Equal(plaintext, plaintext2) {
|
|
t.Errorf("random #%d: plaintext's don't match: got %x vs %x", i, plaintext2, plaintext)
|
|
continue
|
|
}
|
|
|
|
if len(ad) > 0 {
|
|
alterAdIdx := mrand.Intn(len(ad))
|
|
ad[alterAdIdx] ^= 0x80
|
|
if _, err := aead.Open(nil, nonce[:], ct, ad); err == nil {
|
|
t.Errorf("random #%d: Open was successful after altering additional data", i)
|
|
}
|
|
ad[alterAdIdx] ^= 0x80
|
|
}
|
|
|
|
alterNonceIdx := mrand.Intn(aead.NonceSize())
|
|
nonce[alterNonceIdx] ^= 0x80
|
|
if _, err := aead.Open(nil, nonce[:], ct, ad); err == nil {
|
|
t.Errorf("random #%d: Open was successful after altering nonce", i)
|
|
}
|
|
nonce[alterNonceIdx] ^= 0x80
|
|
|
|
alterCtIdx := mrand.Intn(len(ct))
|
|
ct[alterCtIdx] ^= 0x80
|
|
if _, err := aead.Open(nil, nonce[:], ct, ad); err == nil {
|
|
t.Errorf("random #%d: Open was successful after altering ciphertext", i)
|
|
}
|
|
ct[alterCtIdx] ^= 0x80
|
|
}
|
|
}
|
|
|
|
// AFOREMENTIONED LICENSE
|
|
// Copyright (c) 2009 The Go Authors. All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following disclaimer
|
|
// in the documentation and/or other materials provided with the
|
|
// distribution.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived from
|
|
// this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|