Winify

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/trunk/Winify/Utilities/AES.cs
@@ -7,6 +7,7 @@
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Threading.Tasks;
 
namespace Winify.Utilities
{
@@ -25,7 +26,7 @@
///////////////////////////////////////////////////////////////////////////
// Copyright (C) Wizardry and Steamworks 2016 - License: GNU GPLv3 //
///////////////////////////////////////////////////////////////////////////
public static byte[] Encrypt(byte[] plain, string password)
public static async Task<byte[]> Encrypt(byte[] plain, string password)
{
using (var rijndael = Rijndael.Create())
{
@@ -35,22 +36,23 @@
rijndael.Padding = PaddingMode.PKCS7;
var salt = new byte[AESKeySaltBytes];
Rng.GetBytes(salt);
var pdb = new Rfc2898DeriveBytes(password, salt, 1000);
rijndael.Key = pdb.GetBytes(rijndael.KeySize / 8);
rijndael.IV = pdb.GetBytes(rijndael.BlockSize / 8);
using (var pdb = new Rfc2898DeriveBytes(password, salt, 1000))
{
rijndael.Key = pdb.GetBytes(rijndael.KeySize / 8);
rijndael.IV = pdb.GetBytes(rijndael.BlockSize / 8);
 
using (var memoryStream = new MemoryStream())
{
using (var cryptoStream =
new CryptoStream(memoryStream, rijndael.CreateEncryptor(), CryptoStreamMode.Write))
using (var memoryStream = new MemoryStream())
{
cryptoStream.Write(plain, 0, plain.Length);
cryptoStream.Close();
using (var cryptoStream =
new CryptoStream(memoryStream, rijndael.CreateEncryptor(), CryptoStreamMode.Write))
{
await cryptoStream.WriteAsync(plain, 0, plain.Length);
cryptoStream.Close();
 
var ciphertext = memoryStream.ToArray();
var ciphertext = memoryStream.ToArray();
 
return salt.Concat(ciphertext)
.ToArray();
return salt.Concat(ciphertext).ToArray();
}
}
}
}
@@ -59,7 +61,7 @@
///////////////////////////////////////////////////////////////////////////
// Copyright (C) Wizardry and Steamworks 2016 - License: GNU GPLv3 //
///////////////////////////////////////////////////////////////////////////
public static byte[] Decrypt(byte[] cipher, string password)
public static async Task<byte[]> Decrypt(byte[] cipher, string password)
{
using (var rijndael = Rijndael.Create())
{
@@ -68,25 +70,25 @@
rijndael.KeySize = 256;
rijndael.Padding = PaddingMode.PKCS7;
 
var salt = cipher.Take(16)
.ToArray();
var salt = cipher.Take(AESKeySaltBytes).ToArray();
 
var ciphertext = cipher.Skip(16)
.ToArray();
var ciphertext = cipher.Skip(AESKeySaltBytes).ToArray();
 
var pdb = new Rfc2898DeriveBytes(password, salt, 1000);
rijndael.Key = pdb.GetBytes(rijndael.KeySize / 8);
rijndael.IV = pdb.GetBytes(rijndael.BlockSize / 8);
using (var pdb = new Rfc2898DeriveBytes(password, salt, 1000))
{
rijndael.Key = pdb.GetBytes(rijndael.KeySize / 8);
rijndael.IV = pdb.GetBytes(rijndael.BlockSize / 8);
 
using (var memoryStream = new MemoryStream())
{
using (var cryptoStream =
new CryptoStream(memoryStream, rijndael.CreateDecryptor(), CryptoStreamMode.Write))
using (var memoryStream = new MemoryStream())
{
cryptoStream.Write(ciphertext, 0, ciphertext.Length);
cryptoStream.Close();
using (var cryptoStream =
new CryptoStream(memoryStream, rijndael.CreateDecryptor(), CryptoStreamMode.Write))
{
await cryptoStream.WriteAsync(ciphertext, 0, ciphertext.Length);
cryptoStream.Close();
 
return memoryStream.ToArray();
return memoryStream.ToArray();
}
}
}
}