/// <inheritdoc />
public Task <IMessageEncryptionService> CreateMessageEncryptionService(IConfiguration configuration)
{
IMessageEncryptionService messageEncryptionService = null;
var enabled = configuration != null && configuration.GetValue("enabled", false);
if (enabled)
{
var key = (HexEncodedSecurityKey)configuration.GetValue <string>("key");
if (key == null)
{
throw new ConfigurationErrorsException("Attribute 'key' is required for AES message encryption service");
}
var fallbackKeys = configuration.GetSection("fallbackKeys")
.GetChildren()
.Select(k => (HexEncodedSecurityKey)k.Value)
.ToList();
var aesOptions = new AesMessageEncryptionOptions(key)
{
FallbackKeys = fallbackKeys
};
messageEncryptionService = new AesMessageEncryptionService(aesOptions);
}
return(Task.FromResult(messageEncryptionService));
}
/// <summary>
/// Initializes a new <see cref="AesMessageEncryptionService"/> with the specified
/// <paramref name="options"/>
/// </summary>
/// <param name="options">Options that influence the behavior of the AES message
/// encryption service</param>
public AesMessageEncryptionService(AesMessageEncryptionOptions options)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
_diagnosticService = options.DiagnosticService;
#if NET452 || NET461
_encryptionKey = options.Key.GetSymmetricKey();
_decryptionKeys = new[] { _encryptionKey }.Union(
options.FallbackKeys?
.Where(k => k != null)
.Select(k => k.GetSymmetricKey())
.ToList()
?? Enumerable.Empty <byte[]>())
.ToList();
#endif
#if NETSTANDARD2_0
_encryptionKey = options.Key.Key;
_decryptionKeys = new[] { _encryptionKey }.Union(
options.FallbackKeys?
.Where(k => k != null)
.Select(k => k.Key)
.ToList()
?? Enumerable.Empty <byte[]>())
.ToList();
#endif
}
/// <inheritdoc />
public Task <IMessageEncryptionService> CreateMessageEncryptionService(EncryptionElement configuration)
{
IMessageEncryptionService messageEncryptionService = null;
var enabled = configuration.Enabled;
if (enabled)
{
var key = (HexEncodedSecurityKey)configuration.Key;
if (key == null)
{
throw new ConfigurationErrorsException("Attribute 'key' is required for AES message encryption service");
}
var fallbackKeys = configuration.FallbackKeys.Select(k => (HexEncodedSecurityKey)k.Key).ToList();
var aesOptions = new AesMessageEncryptionOptions(key)
{
FallbackKeys = fallbackKeys
};
messageEncryptionService = new AesMessageEncryptionService(aesOptions);
}
return(Task.FromResult(messageEncryptionService));
}
