Inside Ranbval: sessions, SDK, and the runtime decrypt
Architecture · 9 min read · Published 2026-04-09 by Ahsan Tariq
A high-level tour of how a sealed secret turns into an authenticated request — without ever being visible to your app.
Most secret-management stories stop at "we store it encrypted at rest". That is table stakes. The interesting part is what happens the millisecond a real request needs the key. Ranbval architecture in four steps. First, session and master key: you log in, your master password derives a wrapping key through a slow KDF, nothing about that wrapping key leaves your device. Second, named secret slots: each Ranbval project contains slots like openai_prod, anthropic_eval, or supabase_read, carrying policy for allowed repos, IP ranges, telemetry requirements. Third, SDK request flow: the Ranbval SDK verifies the caller's repo remote, fetches the sealed secret envelope, opens it in a locked memory buffer (no env var, no global), runs the provider request, zeroes the buffer. Fourth, governance and telemetry: every request emits a scrubbed trace with project, slot, caller repo, outcome — never plaintext. Refused requests become access requests you can triage. Ranbval describes the trust model, never the internals that would help someone attack it.
