/// <summary>
/// Create a transformer to encrypt or decrypt data
/// </summary>
/// <param name="rgbKey">The secret key used for transforming</param>
/// <returns>A symmetric decryptor or encryptor object.</returns>
private ICryptoTransform CreateTransformer(byte[] rgbKey)
{
this.Key = rgbKey;
RC4CryptoTransform transformer = new RC4CryptoTransform(rgbKey);
return(transformer);
}
/// <summary>
/// Create a transformer to encrypt or decrypt data
/// </summary>
/// <param name="rgbKey">The secret key used for transforming</param>
/// <returns>A symmetric decryptor or encryptor object.</returns>
private ICryptoTransform CreateTransformer(byte[] rgbKey)
{
this.Key = rgbKey;
RC4CryptoTransform encryptor = new RC4CryptoTransform();
IntPtr transKey = IntPtr.Zero;
bool status = NativeMethods.CryptDuplicateKey(keyHandle, IntPtr.Zero, 0, ref transKey);
if (!status)
{
throw new CryptographicException("CryptDuplicateKey fails:" + Helper.GetLastErrorCodeString());
}
encryptor.keyHandle = transKey;
return((ICryptoTransform)encryptor);
}
/// <summary>
/// Create a transformer to encrypt or decrypt data
/// </summary>
/// <param name="rgbKey">The secret key used for transforming</param>
/// <returns>A symmetric decryptor or encryptor object.</returns>
private ICryptoTransform CreateTransformer(byte[] rgbKey)
{
this.Key = rgbKey;
RC4CryptoTransform encryptor = new RC4CryptoTransform();
IntPtr transKey = IntPtr.Zero;
bool status = NativeMethods.CryptDuplicateKey(keyHandle, IntPtr.Zero, 0, ref transKey);
if (!status)
{
throw new CryptographicException("CryptDuplicateKey fails:" + Helper.GetLastErrorCodeString());
}
encryptor.keyHandle = transKey;
return (ICryptoTransform)encryptor;
}
