Configure private content to be accessible through CSW while using security measures

[raibrahim]

I need to ensure that certain private content can still be accessed through the CSW (Catalogue Service for the Web) service. I would like to use security measures like API keys or authentication tokens to ensure that only authorized users can access this data.

Is there a way to include metadata for private content in the GetCapabilities response of CSW? What steps should be taken to ensure private data can be securely accessed via CSW, utilizing security measures like API keys or authentication tokens?

Are there any specific documentation or configuration guidelines I should follow to achieve this?