private async Task Then_data_is_correctly_encrypted()
{
var encryptTask = EncryptAsync(_decryptedData);
var controlTask = _algorithm.EncryptAsync(_decryptedData);
var encrypted = await encryptTask;
var control = await controlTask;
Assert.NotNull(encrypted);
// NOTE: Cannot use xunit's Assert.Equal here because for some reason it is glacially slow with large data sets.
Assert.True(SequencesAreEqual(control, encrypted), "Encrypted sequence does not match the control sequence");
}
/// <summary>
/// Encrypts a string that can also be decrypted using the same password and a salt and <see cref="SymmetricAlgorithm"/>
/// </summary>
/// <param name="algorithm">The SymmetricAlgorithm to encrypt with</param>
/// <param name="value">The text that you want to encypt</param>
/// <param name="encryptionKey">The password that is used with the salt to encrypt/decrypt the text</param>
/// <param name="salt">A value to make the text being encrypted unique to a same text being encrypted elsewhere (basically a prefix added to the text prior to encryption). A salt should be unique to each stored encrypted value and saved elsewhere.</param>
/// <param name="iterations">Is the number of times the encryption is performed</param>
public static Task <string> EncryptAsync(this SymmetricAlgorithm algorithm, string value, string encryptionKey, string salt, int iterations = DEFAULT_ITERATIONS)
{
Assert.NotNullOrEmpty(salt, nameof(salt));
return(algorithm.EncryptAsync(value, encryptionKey, Encoding.Unicode.GetBytes(salt)));
}
private static Task <byte[]> GeneratedEncryptedDataAsync(SymmetricAlgorithm algorithm, int len)
{
var decrypted = GenerateDecryptedData(len);
return(algorithm.EncryptAsync(decrypted));
}
