private void EncryptButton_Click(object sender, EventArgs e)
{
Form encryptForm = new EncryptForm();
encryptForm.Show();
encryptForm.Location = this.Location;
encryptForm.Left += 600;
encryptForm.Top += 200;
}
public static byte[] EncryptStringToBytes(EncryptForm ef, string plainText, byte[] Key, CipherMode cipherMode, byte[] IV)
{
if (plainText == null || plainText.Length <= 0)
{
throw new ArgumentNullException("plainText");
}
if (Key == null || Key.Length <= 0)
{
throw new ArgumentNullException("Key");
}
byte[] encrypted;
using (RijndaelManaged rijAlg = new RijndaelManaged())
{
rijAlg.Key = Key;
rijAlg.Mode = cipherMode;
rijAlg.IV = IV;
// Create a decryptor to perform the stream transform.
var encryptor = rijAlg.CreateEncryptor(rijAlg.Key, rijAlg.IV);
int i = 0;
// Create the streams used for encryption.
using (MemoryStream msEncrypt = new MemoryStream())
{
using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
{
using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))
{
swEncrypt.Write(plainText);
}
encrypted = msEncrypt.ToArray();
}
}
}
return(encrypted);
}