private static void ProcessFile(string sourceFileName, string outputFileName, ConfigureSymmetricAlgorithm configurator, string key,
Action <Stream, Stream, ConfigureSymmetricAlgorithm, string> routine)
{
using (FileStream sourceStream = File.OpenRead(sourceFileName))
{
using (FileStream outputStream = File.Create(outputFileName))
{
routine(sourceStream, outputStream, configurator, key);
}
}
}
internal static System.Security.Cryptography.SymmetricAlgorithm GetSymmetricAlgoritm(ConfigureSymmetricAlgorithm configurator)
{
System.Security.Cryptography.SymmetricAlgorithm algorithm;
switch (configurator.Algorithm)
{
case SymmetricAlgorithm.AES:
algorithm = new AesManaged()
{
BlockSize = configurator.BlockSize,
Mode = configurator.Mode,
KeySize = configurator.KeySize,
Padding = configurator.PaddingMode,
};
break;
case SymmetricAlgorithm.TripleDES:
algorithm = new TripleDESCryptoServiceProvider()
{
BlockSize = configurator.BlockSize,
Padding = configurator.PaddingMode,
KeySize = configurator.KeySize,
Mode = configurator.Mode,
};
break;
case SymmetricAlgorithm.Rijndael:
algorithm = new RijndaelManaged()
{
KeySize = configurator.KeySize,
Padding = configurator.PaddingMode,
BlockSize = configurator.BlockSize,
Mode = configurator.Mode,
};
break;
case SymmetricAlgorithm.Rc2:
algorithm = new RC2CryptoServiceProvider()
{
BlockSize = configurator.BlockSize,
KeySize = configurator.KeySize,
Padding = configurator.PaddingMode,
Mode = configurator.Mode,
};
break;
default:
algorithm = null;
break;
}
return(algorithm);
}
