Cross-Server E2E Encryption: Communication as Structured Data

The SPC’s Cross-Server E2E Encryption does more than just protect your text from prying eyes. It treats every interaction as a Rich Data Object that you can classify, augment, and search using your own organizational logic, independent of the sender.

Asymmetric Categorization: Your Data, Your Rules

In a traditional chat, both parties see the same interface. In the SPC, while the core message is shared, the contextual metadata is sovereign to each user. You can attach multiple categories to a contact or a specific exchange without the other party ever seeing how you’ve organized it.

  • Typed Categories: Categories are not just “tags.” They can hold specific data types—including Text, Dates, Numbers, and predefined Lists.
  • Private Contextualization: While a colleague might tag an exchange simply as “Project X,” you can add a category called “Personal Notes” (Type: Text) to record your immediate thoughts, goals, or reminders about that specific moment.
  • Workflow Integration: You might use a “Follow-up Date” (Type: Date) category to ensure the conversation resurfaces in your calendar, while the recipient ignores that field entirely.

Granular Visibility and Control

The power of these categories is managed by the SPC’s robust permission system. For every category you attach to a cross-server communication, you define the scope:

  • Private: Visible and searchable only by you.
  • User Groups: Shared with specific teams on your server for collaborative tracking.
  • Public: Visible to everyone on your server (if applicable to the project).

Because these categories are indexed on your server, your search capabilities go far beyond simple keyword matching. You can perform complex queries such as:

“Find all encrypted communications from last month categorized as ‘Legal Review’ where my ‘Personal Notes’ contain the word ‘Contract’.”

By allowing for this highly enriched, classified storage, the SPC ensures that your most sensitive conversations are never lost in a flat history, but are instead integrated into a searchable, multidimensional database.