private void BtnCrypt_Click_1(object sender, EventArgs e)
{
cryptedPic = mainPic;
try {
List <BigInteger> oneLineOfPixel = new List <BigInteger>();
for (int X = 0; X < cryptedPic.Width; X++)
{
for (int Y = 0; Y < cryptedPic.Height; Y++)
{
Color pixelColor = cryptedPic.GetPixel(X, Y);
BigInteger.TryParse(pixelColor.ToArgb().ToString(), out BigInteger pixelToArgb);
Color cryptedPixel = Color.FromArgb((int)(PreparedRSA.Crypt(pixelToArgb) % int.MaxValue));
oneLineOfPixel.Add(PreparedRSA.Crypt(pixelToArgb));
cryptedPic.SetPixel(X, Y, cryptedPixel);
}
mesPixels.Add(oneLineOfPixel);
oneLineOfPixel = new List <BigInteger>();
}
pictureBox1.Image = cryptedPic;
ExportKeys();
ExportCryptedPicture();
}
catch (DivideByZeroException error) {
MessageBox.Show(error.Data + "\n" + error.Message + "\n" + error.Source, null, MessageBoxButtons.OK, MessageBoxIcon.Error);
ChangeStatus("An error happened !", FlatUI.FlatAlertBox._Kind.Error);
Application.Exit();
}
ChangeStatus("Done with success!", FlatUI.FlatAlertBox._Kind.Success);
}
public void StreamData(RemoteFileInfo rfi)
{
Stream stream = null;
BinaryReader br = null;
BinaryWriter bw = null;
try
{
stream = rfi.stream;
br = new BinaryReader(stream);
bw = new BinaryWriter(File.Open(dir_path + rfi.FileName, FileMode.Create, FileAccess.Write, FileShare.None));
int buffer_size = 2048;
byte[] buffer = new byte[buffer_size];
int bytesRead;
while ((bytesRead = br.Read(buffer, 0, buffer.Length)) > 0)
{
if (bytesRead < buffer_size)
{
byte[] new_buffer = new byte[bytesRead];
Buffer.BlockCopy(buffer, 0, new_buffer, 0, bytesRead);
bw.Write(rsa.Crypt(new_buffer));
}
else
{
bw.Write(rsa.Crypt(buffer));
}
}
}
catch
{
}
finally
{
if (stream != null)
{
stream.Dispose();
stream.Close();
stream = null;
}
if (br != null)
{
br.Dispose();
br.Close();
br = null;
}
if (bw != null)
{
bw.Dispose();
bw.Close();
bw = null;
}
}
}
private void flatButton1_Click(object sender, EventArgs e)
{
RSA myRSA = new RSA();
flatLabel8.Text = myRSA.getPrivateKey().ToString();
flatLabel9.Text = myRSA.getPublickey()[0] + " & " + myRSA.getPublickey()[1];
flatLabel6.Text = myRSA.Crypt(Convert.ToInt32(flatNumeric2.Value)).ToString();
lblD.Text = myRSA.Decrypt(Convert.ToInt32(flatLabel6.Text)).ToString();
}
public void RSASimpleTest()
{
var data = new BigInteger(123456).ToByteArray();
var(publicKey, privateKey) = RSAKeyGenerator.Generate();
var sign = RSA.Crypt(data, privateKey);
var decryptedData = RSA.Crypt(sign, publicKey);
data.Should().BeEquivalentTo(decryptedData, options => options.WithStrictOrdering());
}
public void RSAFunctionalTest()
{
var data = new byte[123456];
new Random().NextBytes(data);
var hash = SHA512.GetHash(data);
var(publicKey, privateKey) = RSAKeyGenerator.Generate();
var sign = RSA.Crypt(hash, privateKey);
var decryptedHash = RSA.Crypt(sign, publicKey);
hash.Should().BeEquivalentTo(decryptedHash, options => options.WithStrictOrdering());
}
public byte[] EncryptText(EncryptTextMessage message)
{
byte[] encryptedText = null;
//Odradi se enkripcija
if (message.Algorithm == AlgorithmType.RC4)
{
RC4 rc = new RC4(message.Key, message.IV);
encryptedText = rc.Crypt(message.Data);
}
else if (message.Algorithm == AlgorithmType.RC4CTR)
{
RC4 rc = new RC4(message.Key, message.IV);
encryptedText = rc.CryptWithCTR(message.Data);
}
else if (message.Algorithm == AlgorithmType.A52 || message.Algorithm == AlgorithmType.A52CTR)
{
A52 alg = new A52();
alg.SetKey(message.Key);
alg.SetF(message.FKeyA52);
if (message.Algorithm == AlgorithmType.A52)
{
encryptedText = alg.Crypt(message.Data);
}
else
{
alg.SetIV(message.IV);
encryptedText = alg.CryptWithCTR(message.Data);
}
}
else if (message.Algorithm == AlgorithmType.RSA)
{
RSA rsa = new RSA();
rsa.E = new BigInteger(message.Key);
rsa.P = new BigInteger(message.P);
rsa.Q = new BigInteger(message.Q);
rsa.GenerateRSA();
//BigInteger result = rsa.Crypt(new BigInteger(message.Data));
//encryptedText = result.ToByteArray();
encryptedText = rsa.Crypt(message.Data);
}
else if (message.Algorithm == AlgorithmType.TigerHash)
{
TigerHash th = new TigerHash();
byte[] msg = message.Data;
encryptedText = th.ComputeHash(message.Data);
}
return(encryptedText);
}
private void CreateHauteurListAndCrypt(String path)
{
ChangeStatus("Crypting your sound ...", FlatUI.FlatAlertBox._Kind.Info);
AudioFileReader ReadedSound = new AudioFileReader(path);
int SoundSize = Convert.ToInt32(ReadedSound.Length);
byte[] HauteurArray = new byte[SoundSize];
ReadedSound.Read(HauteurArray, 0, SoundSize);
Hauteur = ReadedSound.WaveFormat.SampleRate;
Channel = ReadedSound.WaveFormat.Channels;
for (int a = 0; a < HauteurArray.Length; ++a)
{
HauteurArray[a] *= Multiplier;
HauteurCryptees.Add(PreparedRSA.Crypt(HauteurArray[a]));
}
}
/////RSA ---------------------------------------------------------
public byte[] RSACrypt(byte[] input)
{
// RSA rsa = new RSA();
// rsa.init(17, 23);
return(rsa.Crypt(input));
}