Protocol one-pager (reviewers)
Short official architecture sheet for auditors and technical reviewers: sealed delivery path + Privacy section vs Feature mode.
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Download PDF — Buzzio reviewer one-pager
(~one A4 page · also in-repo under web-doc/official-pdf/)
Printable HTML source (same content): buzzio-reviewer-one-pager.html
Open-source crypto to verify algorithms: github.com/ve-21/buzzio-crypto-open-source · How to verify
Diagram: sealed path
Sender encrypts (Double Ratchet + AES-GCM), wraps a sealed outer envelope, relay moves ciphertext without a durable plaintext from, recipient opens the envelope and decrypts. Details: Sealed sender · Message delivery
Diagram: Privacy vs Features
| Mode | Surfaces | Operator-readable content? |
|---|---|---|
| Privacy (sealed) | 1-to-1, E2E groups, Whisper private chat, private calls | No |
| Feature (shared) | Open-history groups, Communities, Broadcast | Yes where the product needs text DEKs |
Full matrix: Sealed vs shared