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Learn to implement client-side encryption in Drupal using the Protected Content contrib module to achieve zero trust security for sensitive content. Master key management through user key generation, encrypt files and text using OpenPGP.js without server-side exposure, and configure secure sharing workflows with decryption modals and cache strategies. Explore field-level encryption by adding Proc Entity Reference Fields to content types, customize formatter options for armored media embeds and decrypt links, and configure global security policies including RSA key sizes and password caching. Utilize APIs for fetching public keys and implement re-encryption plugins for advanced metadata management, while understanding how zero trust principles apply to Drupal content governance and integrating encryption workflows with existing site architectures.
