Section 81 of 101
80. Secure Communication
Stable section ID: S05-CON-006-SECTION-81 · 34 content blocks
Secure Communication shall protect the confidentiality, integrity, authenticity, freshness, and availability of BIOS communications according to their risk.
Protected communication shall address:
device-to-BIOS traffic;
BIOS-node coordination;
service-to-service traffic;
local user access;
remote administration;
Digital Twin integration;
AI and cloud integration;
robotic communication;
manufacturer support;
emergency interfaces.
Communication controls shall provide, as applicable:
mutual authentication;
encryption;
message-integrity verification;
replay protection;
sequence control;
session management;
endpoint authorization;
secure error handling;
communication logging.
Safety-relevant commands shall include sufficient context to prevent misapplication, including:
issuing identity;
target identity;
command type;
validity period;
configuration version;
applicable state;
- transaction or sequence identifier.
- A delayed or replayed valid command shall not be accepted outside its authorized context.
Loss of secure communication shall result in defined behavior. Components may continue local preauthorized operation, enter degraded mode, preserve a safe state, or isolate themselves according to their function.
Encryption shall not prevent authorized emergency access to essential local information.
Legacy protocols lacking adequate security shall operate through controlled gateways, segmentation, monitoring, and restricted authority.