Improve helpers performance

**Feature request**
It would be great to have encryption for validation.

**Use case**
Many users need this functionality for production deployments.

**Implementation idea**
Add a new config option `enable_encryption` with default `false`.

The issue names no file, test, or entry point. Start by locating the validation helpers and configuration handling, then clarify what data encryption should cover; done should include the enable_encryption option defaulting to false and behavior that matches the requested validation use case.

Written by the indexing model from the issue text.