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.
143 lines
4.7 KiB
143 lines
4.7 KiB
package hkdfchacha20poly1305
|
|
|
|
import (
|
|
"bytes"
|
|
cr "crypto/rand"
|
|
"encoding/hex"
|
|
mr "math/rand"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
// Test that a test vector we generated is valid. (Ensures backwards
|
|
// compatibility)
|
|
func TestVector(t *testing.T) {
|
|
key, _ := hex.DecodeString("56f8de45d3c294c7675bcaf457bdd4b71c380b9b2408ce9412b348d0f08b69ee")
|
|
aead, err := New(key[:])
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
cts := []string{"e20a8bf42c535ac30125cfc52031577f0b",
|
|
"657695b37ba30f67b25860d90a6f1d00d8",
|
|
"e9aa6f3b7f625d957fd50f05bcdf20d014",
|
|
"8a00b3b5a6014e0d2033bebc5935086245",
|
|
"aadd74867b923879e6866ea9e03c009039",
|
|
"fc59773c2c864ee3b4cc971876b3c7bed4",
|
|
"caec14e3a9a52ce1a2682c6737defa4752",
|
|
"0b89511ffe490d2049d6950494ee51f919",
|
|
"7de854ea71f43ca35167a07566c769083d",
|
|
"cd477327f4ea4765c71e311c5fec1edbfb"}
|
|
|
|
for i := 0; i < 10; i++ {
|
|
ct, _ := hex.DecodeString(cts[i])
|
|
|
|
byteArr := []byte{byte(i)}
|
|
nonce := make([]byte, 24)
|
|
nonce[0] = byteArr[0]
|
|
|
|
// Test that we get the expected plaintext on open
|
|
plaintext, err := aead.Open(nil, nonce, ct, byteArr)
|
|
if err != nil {
|
|
t.Errorf("%dth Open failed", i)
|
|
continue
|
|
}
|
|
assert.Equal(t, byteArr, plaintext)
|
|
// Test that sealing yields the expected ciphertext
|
|
ciphertext := aead.Seal(nil, nonce, plaintext, byteArr)
|
|
assert.Equal(t, ct, ciphertext)
|
|
}
|
|
}
|
|
|
|
// 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 := mr.Intn(128)
|
|
pl := mr.Intn(16384)
|
|
ad := make([]byte, al)
|
|
plaintext := make([]byte, pl)
|
|
cr.Read(key[:])
|
|
cr.Read(nonce[:])
|
|
cr.Read(ad)
|
|
cr.Read(plaintext)
|
|
|
|
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 := mr.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 := mr.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 := mr.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 LICENCE
|
|
// 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.
|