/// <summary>
/// Imports the <see cref="AuthenticatedEncryptorDescriptor"/> from serialized XML.
/// </summary>
public IAuthenticatedEncryptorDescriptor ImportFromXml(XElement element)
{
if (element == null)
{
throw new ArgumentNullException(nameof(element));
}
// <descriptor>
// <encryption algorithm="..." />
// <validation algorithm="..." /> <!-- only if not GCM -->
// <masterKey requiresEncryption="true">...</masterKey>
// </descriptor>
var configuration = new AuthenticatedEncryptorConfiguration();
var encryptionElement = element.Element("encryption");
configuration.EncryptionAlgorithm = (EncryptionAlgorithm)Enum.Parse(typeof(EncryptionAlgorithm), (string)encryptionElement.Attribute("algorithm"));
// only read <validation> if not GCM
if (!AuthenticatedEncryptorFactory.IsGcmAlgorithm(configuration.EncryptionAlgorithm))
{
var validationElement = element.Element("validation");
configuration.ValidationAlgorithm = (ValidationAlgorithm)Enum.Parse(typeof(ValidationAlgorithm), (string)validationElement.Attribute("algorithm"));
}
Secret masterKey = ((string)element.Elements("masterKey").Single()).ToSecret();
return(new AuthenticatedEncryptorDescriptor(configuration, masterKey));
}
/// <summary>
/// Initializes a new instance of <see cref="AuthenticatedEncryptorDescriptor"/>.
/// </summary>
/// <param name="configuration">The <see cref="AuthenticatedEncryptorDescriptor"/>.</param>
/// <param name="masterKey">The master key.</param>
public AuthenticatedEncryptorDescriptor(AuthenticatedEncryptorConfiguration configuration, ISecret masterKey)
{
if (configuration == null)
{
throw new ArgumentNullException(nameof(configuration));
}
if (masterKey == null)
{
throw new ArgumentNullException(nameof(masterKey));
}
Configuration = configuration;
MasterKey = masterKey;
}