private Task <FileOperationContext> VerifyFileIntegrityAsync(IDataStore dataStore, LogOnIdentity identity, IProgressContext progress)
        {
            FileOperationsController operationsController = new FileOperationsController(progress);

            operationsController.QueryDecryptionPassphrase = HandleQueryDecryptionPassphraseEventAsync;

            return(operationsController.VerifyFileIntegrityAsync(dataStore));
        }