Handle edge cases in compression

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

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

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

No files or tests are named, and the title refers to compression while the body requests parser encryption. Start by locating the parser, compression, and configuration entry points, then clarify the encryption scope and expected edge cases. Done requires an agreed design, default-off configuration, and tests for the specified behavior.

Written by the indexing model from the issue text.