Patent 02 · BRANXA Guard
The wired reference monitor.
Wired fail-safe
Bounded latency
Untrusted host
INPI provisional filed · BRANXA-002-2026
The idea
Encrypt, authenticate, detect — those act on the attempt. Branxa acts on the effect.
Four concepts
Understand the lock in two minutes.
01
Reference monitor
02
Wired fail-safe
03
Signed policy
04
Independent sensors
The method
The proof, offline. The veto, online.
Phase 1 — offline
Certify the policy
Phase 2 — online
Apply it in bounded time
How the lock works
The veto, made visible.
Applications
See where this patent applies.
All BRANXA applications — consumer products, sectors, and a restricted defence space — are gathered on the Applications page.
Against the alternatives
Against the alternatives.
| SIL relay | Software monitor | ML / IDS | BRANXA | |
|---|---|---|---|---|
| Physically separate from the host | ○ | ○ | ~ | ● |
| Bounded, proven worst-case latency | ○ | ○ | ○ | ● |
| Fail-safe by default | ~ | ~ | ○ | ● |
| Signed & immutable policy | ○ | ○ | ~ | ● |
| Sensors independent of the host | ~ | ○ | ○ | ● |
Evidence & maturity
Proven on the real RTL.
21/21
RTL test benches green
5/5
attack cases blocked on RTL
8/8
safety closures proven unreachable
0
deviation vs the reference model