private static async Task AesTestMemoryAsync()
{
string metin = "{ KeMaL; }";
AES aes = new AES();
byte[] orijinal = Encoding.UTF8.GetBytes(metin);
byte[] sifrele = await aes.ProcessAsync(orijinal, AES.Cryptor.Encrypt);
byte[] cozuldu = await aes.ProcessAsync(sifrele, AES.Cryptor.Decrypt);
string cozumMetin = Encoding.UTF8.GetString(cozuldu);
Console.WriteLine("Key Anahtarı\t: {0}\r\n", Convert.ToBase64String(aes.Key));
Console.WriteLine("IV Anahtarı\t: {0}\r\n", Convert.ToBase64String(aes.IV));
Console.WriteLine("AES-256 Bit Şifreleme");
Console.WriteLine("Orijinal\t: {0}\r\n", metin);
Console.WriteLine("Sifrelenmiş\t: {0}\r\n", Convert.ToBase64String(sifrele));
Console.WriteLine("Çözüm\t\t: {0}\r\n", cozumMetin);
LogAppend(ConsoleColor.White, "Hash\t\t: ");
if (BitConverter.ToString(MD5.Create().ComputeHash(orijinal)) == BitConverter.ToString(MD5.Create().ComputeHash(cozuldu)))
{
LogLine(ConsoleColor.Green, "Doğrulandı.");
}
else
{
LogLine(ConsoleColor.Red, "Yanlış.");
}
}
private static async Task AesTestFromFileAsync()
{
Console.WriteLine("Lütfen bekleyiniz...");
string targetFileNameEnc = Path.GetFileNameWithoutExtension(testSourceFileName) + "_AES_encrypted.enc";
string targetFileNameDec = Path.GetFileNameWithoutExtension(testSourceFileName) + "_AES_decrypted.exe";
if (File.Exists(targetFileNameEnc))
{
File.Delete(targetFileNameEnc);
}
if (File.Exists(targetFileNameDec))
{
File.Delete(targetFileNameDec);
}
AES aes = new AES();
await aes.ProcessAsync(testSourceFileName, targetFileNameEnc, AES.Cryptor.Encrypt);
await aes.ProcessAsync(targetFileNameEnc, targetFileNameDec, AES.Cryptor.Decrypt);
LogAppend(ConsoleColor.White, "Hash\t\t: ");
if (MD5Hash(testSourceFileName) == MD5Hash(targetFileNameDec))
{
LogLine(ConsoleColor.Green, "Doğrulandı.");
}
else
{
LogLine(ConsoleColor.Red, "Yanlış.");
}
}
/// <summary>
/// RSA ve AES Karışımı Hibrit Kriptografi
/// </summary>
/// <param name="data">Byte[] değerinden şifrelenecek veri</param>
/// <returns>Kriptolanmış veriyi döndürür</returns>
public async Task <byte[]> EncryptAsync(byte[] data)
{
if (data == null || data.Length == 0)
{
throw new ArgumentException("Veri boş olamaz", "veri");
}
byte[] veriCrypt = await AES.ProcessAsync(data, AES.Cryptor.Encrypt);
byte[] KeyCrypt = RSA.Encrypt(AES.Key);
byte[] IVCrypt = RSA.Encrypt(AES.IV);
byte[] birlestir = new byte[veriCrypt.Length + KeyCrypt.Length + IVCrypt.Length];
Buffer.BlockCopy(KeyCrypt, 0, birlestir, 0, KeyCrypt.Length);
Buffer.BlockCopy(IVCrypt, 0, birlestir, KeyCrypt.Length, IVCrypt.Length);
Buffer.BlockCopy(veriCrypt, 0, birlestir, KeyCrypt.Length + IVCrypt.Length, veriCrypt.Length);
return(birlestir);
}
