Add configuration options for encryption

**Problem**
When working with validation, the error messages could be more descriptive.

**Suggestion**
Improve error handling and add detailed error messages.

**Context**
This would help with debugging and maintenance.

No files, tests, or entry points are named. Start by locating the validation error handling and encryption configuration code, then clarify which configuration options and error details are required before defining completion.

Written by the indexing model from the issue text.