106 lines
2.6 KiB
Go
106 lines
2.6 KiB
Go
// Copyright 2010 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 cast5
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/hex"
|
|
"testing"
|
|
)
|
|
|
|
// This test vector is taken from RFC 2144, App B.1.
|
|
// Since the other two test vectors are for reduced-round variants, we can't
|
|
// use them.
|
|
var basicTests = []struct {
|
|
key, plainText, cipherText string
|
|
}{
|
|
{
|
|
"0123456712345678234567893456789a",
|
|
"0123456789abcdef",
|
|
"238b4fe5847e44b2",
|
|
},
|
|
}
|
|
|
|
func TestBasic(t *testing.T) {
|
|
for i, test := range basicTests {
|
|
key, _ := hex.DecodeString(test.key)
|
|
plainText, _ := hex.DecodeString(test.plainText)
|
|
expected, _ := hex.DecodeString(test.cipherText)
|
|
|
|
c, err := NewCipher(key)
|
|
if err != nil {
|
|
t.Errorf("#%d: failed to create Cipher: %s", i, err)
|
|
continue
|
|
}
|
|
var cipherText [BlockSize]byte
|
|
c.Encrypt(cipherText[:], plainText)
|
|
if !bytes.Equal(cipherText[:], expected) {
|
|
t.Errorf("#%d: got:%x want:%x", i, cipherText, expected)
|
|
}
|
|
|
|
var plainTextAgain [BlockSize]byte
|
|
c.Decrypt(plainTextAgain[:], cipherText[:])
|
|
if !bytes.Equal(plainTextAgain[:], plainText) {
|
|
t.Errorf("#%d: got:%x want:%x", i, plainTextAgain, plainText)
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestFull performs the test specified in RFC 2144, App B.2.
|
|
// However, due to the length of time taken, it's disabled here and a more
|
|
// limited version is included, below.
|
|
func TestFull(t *testing.T) {
|
|
if testing.Short() {
|
|
// This is too slow for normal testing
|
|
return
|
|
}
|
|
|
|
a, b := iterate(1000000)
|
|
|
|
const expectedA = "eea9d0a249fd3ba6b3436fb89d6dca92"
|
|
const expectedB = "b2c95eb00c31ad7180ac05b8e83d696e"
|
|
|
|
if hex.EncodeToString(a) != expectedA {
|
|
t.Errorf("a: got:%x want:%s", a, expectedA)
|
|
}
|
|
if hex.EncodeToString(b) != expectedB {
|
|
t.Errorf("b: got:%x want:%s", b, expectedB)
|
|
}
|
|
}
|
|
|
|
func iterate(iterations int) ([]byte, []byte) {
|
|
const initValueHex = "0123456712345678234567893456789a"
|
|
|
|
initValue, _ := hex.DecodeString(initValueHex)
|
|
|
|
var a, b [16]byte
|
|
copy(a[:], initValue)
|
|
copy(b[:], initValue)
|
|
|
|
for i := 0; i < iterations; i++ {
|
|
c, _ := NewCipher(b[:])
|
|
c.Encrypt(a[:8], a[:8])
|
|
c.Encrypt(a[8:], a[8:])
|
|
c, _ = NewCipher(a[:])
|
|
c.Encrypt(b[:8], b[:8])
|
|
c.Encrypt(b[8:], b[8:])
|
|
}
|
|
|
|
return a[:], b[:]
|
|
}
|
|
|
|
func TestLimited(t *testing.T) {
|
|
a, b := iterate(1000)
|
|
|
|
const expectedA = "23f73b14b02a2ad7dfb9f2c35644798d"
|
|
const expectedB = "e5bf37eff14c456a40b21ce369370a9f"
|
|
|
|
if hex.EncodeToString(a) != expectedA {
|
|
t.Errorf("a: got:%x want:%s", a, expectedA)
|
|
}
|
|
if hex.EncodeToString(b) != expectedB {
|
|
t.Errorf("b: got:%x want:%s", b, expectedB)
|
|
}
|
|
}
|