Files
fips/docs/design
Johnathan Corgan 5e7342c57c Standardize naming conventions across docs and source
Rename NodeId to NodeAddr and npub to pubkey throughout documentation
and source code for consistency with the established identity model.
Add FIPS API vs IPv6 adapter overview to session protocol document.
Add transport address terminology note to wire protocol document.
2026-02-06 04:03:32 +00:00
..

FIPS Design Documents

Protocol design specifications and analysis for the Federated Interoperable Peering System.

Suggested Reading Order

Start with the high-level architecture, then work through session flow, routing concepts, and finally the wire-level protocol details.

1. Introduction and Overview

Document Description
fips-intro.md Protocol introduction: goals, concepts, architecture

2. Protocol Flow (How Traffic Works)

Document Description
fips-session-protocol.md End-to-end session flow, Noise IK encryption, terminology

3. Routing (How Packets Find Their Way)

Document Description
fips-routing.md Routing concepts: bloom filters, discovery, greedy routing
spanning-tree-dynamics.md Tree protocol behavior: convergence, partitions, recovery
fips-gossip-protocol.md Wire formats: TreeAnnounce, FilterAnnounce, Lookup messages
Document Description
fips-wire-protocol.md Transport layer: Noise IK, session indices, roaming, security
fips-transports.md Transport-specific: UDP, Ethernet, Tor, radio characteristics

Implementation

Document Description
fips-architecture.md Software architecture: entities, state machines, configuration
fips-tun-driver.md TUN interface driver: reader/writer threads, ICMPv6, packet flow
fips-state-machines.md Phase-based state machine pattern: peer lifecycle, transitions

Document Cross-References

                      fips-intro.md
                           │
              ┌────────────┴────────────┐
              ▼                         ▼
    fips-session-protocol.md    fips-architecture.md
              │                         │
    ┌─────────┴─────────┐               ▼
    ▼                   ▼         fips-transports.md
fips-routing.md   fips-wire-protocol.md
    │       │
    ▼       ▼
spanning-tree-dynamics.md ←→ fips-gossip-protocol.md