public void Encrypt_Decrypt_Cycle(string text, string keyText, string textFileName, string expectedCipher)
{
var encrypted = SymmetricKeyCryptography.Encrypt(text, keyText, textFileName);
Assert.AreEqual(expectedCipher, encrypted);
var decrypted = SymmetricKeyCryptography.Decrypt(encrypted, keyText, textFileName);
Assert.AreEqual(text, decrypted);
}
/// <summary>
/// Produces a file ending with ".encrypted".
/// WARNING: The file can't not be renmaed or the file can't be decrypted. If the original filename is changed and forgotten the data is lost.
/// </summary>
/// <param name="path">Full path to file.</param>
/// <param name="password">Password to encrpt file.</param>
/// <returns>Returns the path to the encrypted file.</returns>
private static string Encrypt(string path, string password)
{
var fileName = path.Split('\\').Last();
var data = File.ReadAllBytes(path);
var encrypted = SymmetricKeyCryptography.Encrypt(
data: Convert.ToBase64String(data),
keyText: password,
initializationVectorText: fileName);
var encryptedPath = path + ".encrypted";
File.WriteAllBytes(encryptedPath, Convert.FromBase64String(encrypted));
return(encryptedPath);
}