public static string Decrypt(string path)
{
CryptoKeyData keyData = GetKeyData(Path.GetFileName(path));
byte[] input = File.ReadAllBytes(path);
byte[] output = new byte[input.Length];
Aes128CounterMode aes = new Aes128CounterMode(keyData.IV);
ICryptoTransform ict = aes.CreateEncryptor(keyData.Key, null);
ict.TransformBlock(input, 0, input.Length, output, 0);
return(Encoding.ASCII.GetString(output));
}
public static void Encrypt(string path, string contents)
{
CryptoKeyData keyData = GetKeyData(Path.GetFileName(path));
byte[] input = Encoding.ASCII.GetBytes(contents);
byte[] output = new byte[input.Length];
Aes128CounterMode aes = new Aes128CounterMode(keyData.IV);
ICryptoTransform ict = aes.CreateEncryptor(keyData.Key, null);
ict.TransformBlock(input, 0, input.Length, output, 0);
File.WriteAllBytes(path, output);
}