mirror of
https://github.com/octoleo/restic.git
synced 2024-11-14 09:14:07 +00:00
94 lines
2.7 KiB
Go
94 lines
2.7 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package tea
|
|
|
|
import (
|
|
"bytes"
|
|
"testing"
|
|
)
|
|
|
|
// A sample test key for when we just want to initialize a cipher
|
|
var testKey = []byte{0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF}
|
|
|
|
// Test that the block size for tea is correct
|
|
func TestBlocksize(t *testing.T) {
|
|
c, err := NewCipher(testKey)
|
|
if err != nil {
|
|
t.Fatalf("NewCipher returned error: %s", err)
|
|
}
|
|
|
|
if result := c.BlockSize(); result != BlockSize {
|
|
t.Errorf("cipher.BlockSize returned %d, but expected %d", result, BlockSize)
|
|
}
|
|
}
|
|
|
|
// Test that invalid key sizes return an error
|
|
func TestInvalidKeySize(t *testing.T) {
|
|
var key [KeySize + 1]byte
|
|
|
|
if _, err := NewCipher(key[:]); err == nil {
|
|
t.Errorf("invalid key size %d didn't result in an error.", len(key))
|
|
}
|
|
|
|
if _, err := NewCipher(key[:KeySize-1]); err == nil {
|
|
t.Errorf("invalid key size %d didn't result in an error.", KeySize-1)
|
|
}
|
|
}
|
|
|
|
// Test Vectors
|
|
type teaTest struct {
|
|
rounds int
|
|
key []byte
|
|
plaintext []byte
|
|
ciphertext []byte
|
|
}
|
|
|
|
var teaTests = []teaTest{
|
|
// These were sourced from https://github.com/froydnj/ironclad/blob/master/testing/test-vectors/tea.testvec
|
|
{
|
|
numRounds,
|
|
[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
[]byte{0x41, 0xea, 0x3a, 0x0a, 0x94, 0xba, 0xa9, 0x40},
|
|
},
|
|
{
|
|
numRounds,
|
|
[]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
|
|
[]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
|
|
[]byte{0x31, 0x9b, 0xbe, 0xfb, 0x01, 0x6a, 0xbd, 0xb2},
|
|
},
|
|
{
|
|
16,
|
|
[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
[]byte{0xed, 0x28, 0x5d, 0xa1, 0x45, 0x5b, 0x33, 0xc1},
|
|
},
|
|
}
|
|
|
|
// Test encryption
|
|
func TestCipherEncrypt(t *testing.T) {
|
|
// Test encryption with standard 64 rounds
|
|
for i, test := range teaTests {
|
|
c, err := NewCipherWithRounds(test.key, test.rounds)
|
|
if err != nil {
|
|
t.Fatalf("#%d: NewCipher returned error: %s", i, err)
|
|
}
|
|
|
|
var ciphertext [BlockSize]byte
|
|
c.Encrypt(ciphertext[:], test.plaintext)
|
|
|
|
if !bytes.Equal(ciphertext[:], test.ciphertext) {
|
|
t.Errorf("#%d: incorrect ciphertext. Got %x, wanted %x", i, ciphertext, test.ciphertext)
|
|
}
|
|
|
|
var plaintext2 [BlockSize]byte
|
|
c.Decrypt(plaintext2[:], ciphertext[:])
|
|
|
|
if !bytes.Equal(plaintext2[:], test.plaintext) {
|
|
t.Errorf("#%d: incorrect plaintext. Got %x, wanted %x", i, plaintext2, test.plaintext)
|
|
}
|
|
}
|
|
}
|