public async Task <AuthorizationToken> ParseAuthorizationToken(SerializedAuthorizationToken serializedAuthorizationToken)
{
return(_serializationService.DeserializeFromBytes <AuthorizationToken>(
await _encryptThenMacService.ValidateAndDecrypt(
_serializationService.DeserializeFromBytes <EncryptThenMacData>(
Convert.FromBase64String(serializedAuthorizationToken.AuthorizationToken)
)
)
));
}
public Task ProcessMessageAsCommand(byte[] messageBytes)
{
Message message = _serializationService.DeserializeFromBytes <Message>(messageBytes);
ICommand command = _commandMessageDeserializer.DeserializeCommandFromMessage(message);
return(_commandDispatcher.DispatchAsync(command));
}
public async Task <byte[]> ValidateAndDecrypt(EncryptThenMacData encryptThenMacData)
{
byte[] data = Convert.FromBase64String(encryptThenMacData.Data);
byte[] hmac = Convert.FromBase64String(encryptThenMacData.Hmac);
if (!await _hmacService.IsValid(hmac, data))
{
throw new Exception("HMAC is not valid.");
}
AesEncryptedData aesEncryptedData = _serializationService.DeserializeFromBytes <AesEncryptedData>(data);
return(await _aesEncryptionService.Decrypt(aesEncryptedData));
}
