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// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package memberlist
import (
"bytes"
"reflect"
"testing"
)
func TestPKCS7(t *testing.T) {
for i := 0; i <= 255; i++ {
// Make a buffer of size i
buf := []byte{}
for j := 0; j < i; j++ {
buf = append(buf, byte(i))
}
// Copy to bytes buffer
inp := bytes.NewBuffer(nil)
inp.Write(buf)
// Pad this out
pkcs7encode(inp, 0, 16)
// Unpad
dec := pkcs7decode(inp.Bytes(), 16)
// Ensure equivilence
if !reflect.DeepEqual(buf, dec) {
t.Fatalf("mismatch: %v %v", buf, dec)
}
}
}
func TestEncryptDecrypt_V0(t *testing.T) {
encryptDecryptVersioned(0, t)
}
func TestEncryptDecrypt_V1(t *testing.T) {
encryptDecryptVersioned(1, t)
}
func encryptDecryptVersioned(vsn encryptionVersion, t *testing.T) {
k1 := []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
plaintext := []byte("this is a plain text message")
extra := []byte("random data")
var buf bytes.Buffer
err := encryptPayload(vsn, k1, plaintext, extra, &buf)
if err != nil {
t.Fatalf("err: %v", err)
}
expLen := encryptedLength(vsn, len(plaintext))
if buf.Len() != expLen {
t.Fatalf("output length is unexpected %d %d %d", len(plaintext), buf.Len(), expLen)
}
msg, err := decryptPayload([][]byte{k1}, buf.Bytes(), extra)
if err != nil {
t.Fatalf("err: %v", err)
}
cmp := bytes.Compare(msg, plaintext)
if cmp != 0 {
t.Errorf("len %d %v", len(msg), msg)
t.Errorf("len %d %v", len(plaintext), plaintext)
t.Fatalf("encrypt/decrypt failed! %d '%s' '%s'", cmp, msg, plaintext)
}
}