public static void EncryptFile(FileInfo file, byte[] key, byte[] salt)
{
if (file == null || !file.Exists)
{
throw new FileNotFoundException();
}
var bytes = File.ReadAllBytes(file.FullName);
using (var fileStream = new FileStream(file.FullName, FileMode.Create, FileAccess.Write, FileShare.ReadWrite))
{
var cipherText = WeakSymmetricEncryption.Encrypt(bytes, key, salt);
fileStream.Write(cipherText, 0, cipherText.Length);
}
file.MoveTo(Path.Combine(file.Directory.FullName, file.Name + ".falsecrypt"));
}
public static byte[] EncryptMessage(byte[] secretMessage, string password)
{
var data = WeakPasswordDerivation.DerivePassword(password);
return(WeakSymmetricEncryption.Encrypt(secretMessage, data.Key, data.Salt));
}
public static byte[] EncryptMessage(byte[] secretMessage, byte[] key, byte[] nonSecretPayload)
{
return(WeakSymmetricEncryption.Encrypt(secretMessage, key, nonSecretPayload));
}
public static byte[] EncryptMessage(byte[] secretMessage, byte[] key)
{
return(WeakSymmetricEncryption.Encrypt(secretMessage, key, null));
}
