static void Main(string[] args)
{
var password = "******";
string encryptedPassword;
var symmetricProvider = SymmetricProvider.AES; // an enum with the options of AES,DES,RC2,Rijndael,TripleDES
var symmetricAlgorithm = SymmetricFactory.Create(symmetricProvider);
using (symmetricAlgorithm)
{
var passwordStream = new MemoryStream();
var cryptoStream = new CryptoStream(passwordStream, symmetricAlgorithm.CreateEncryptor(), CryptoStreamMode.Write);
new MemoryStream(Encoding.UTF8.GetBytes(password)).CopyTo(cryptoStream);
cryptoStream.FlushFinalBlock();
passwordStream.Seek(0, SeekOrigin.Begin);
encryptedPassword = new StreamReader(passwordStream).ReadToEnd();
string passwordButDecrypted;
passwordStream.Seek(0, SeekOrigin.Begin);
using (var decryptorStream = new CryptoStream(passwordStream, symmetricAlgorithm.CreateDecryptor(), CryptoStreamMode.Read))
{
passwordButDecrypted = new StreamReader(decryptorStream).ReadToEnd();
}
}
//var passwordAsBytes = Encoding.UTF8.GetBytes("password");
//var hashAlgorithm = HashingFactory.Create(HashProvider.SHA256);
//var hashValue = hashAlgorithm.ComputeHash(new MemoryStream(passwordAsBytes));
//var b = SHA256.Create().ComputeHash(new MemoryStream(passwordAsBytes));
//var c = SHA256Managed.Create().ComputeHash(new MemoryStream(passwordAsBytes));
//var d = SHA256Cng.Create().ComputeHash(new MemoryStream(passwordAsBytes));
//var e = SHA256CryptoServiceProvider.Create().ComputeHash(new MemoryStream(passwordAsBytes));
//var a2 = Encoding.UTF8.GetString(a);
//var b2 = Encoding.UTF8.GetString(b);
//var c2 = Encoding.UTF8.GetString(c);
//var d2 = Encoding.UTF8.GetString(d);
//var e2 = Encoding.UTF8.GetString(e);
//Console.WriteLine(a2);
//Console.WriteLine(b2);
//Console.WriteLine(c2);
//Console.WriteLine(d2);
//Console.WriteLine(e2);
//var hashValueAsBytes = hashAlgorithm.ComputeHash(passwordAsStream);
// var hashValueAsString = Encoding.UTF8.GetString(hashValueAsBytes);
// Console.WriteLine(hashValueAsString);
}
private async void btnDecrypt_Click(object sender, EventArgs e)
{
UseWaitCursor = true;
tlpMain.Enabled = false;
pbProgress.Value = 0;
string tmpFile = tbFilename.Text + ".tmp";
try
{
using var mre = new ManualResetEvent(false);
var key = new Key(tbPassword.Text);
var alg = SymmetricFactory.CreateAES();
IProgress <KryptoProgress> prog = new Progress <KryptoProgress>(p =>
{
pbProgress.Value = (int)Math.Floor(p.Percent * 100);
if (p.Done)
{
mre.Set();
}
});
await alg.DecryptFileAsync(key, tbFilename.Text, tmpFile, prog);
File.Move(tmpFile, tbFilename.Text, true);
await mre.WaitOneAsync();
MessageBox.Show("File Decrypted", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (AggregateException ex)
{
ShowErrors(ex.InnerExceptions);
}
catch (Exception ex)
{
ShowErrors(new Exception[] { ex });
}
finally
{
if (File.Exists(tmpFile))
{
try { File.Delete(tmpFile); }
catch { }
}
}
UseWaitCursor = false;
tlpMain.Enabled = true;
}
