BUILDING OF A MULTILEVEL SECURITY PLATFORM [PMN]

GENERAL

DIRECTORATE

FOR

ARMAMENT

Definition: Multilevel Security

A set of practices, technologies, and policies to protect systems at different classification levels (e.g., Confidential, Secret, Top Secret), relying on compartmentalization and strict access control.

Definition: REAL TIME

Real-time constraints: time-bounded requirements where a system’s correctness depends on when results are produced, not only on what they are.

Hard: any missed deadline = system failure (e.g., braking control).
Firm: late results have zero value; rare misses tolerated.
Soft: occasional misses degrade quality only (e.g., video).

Key metrics: deadlines, worst-case execution time (WCET), latency, jitter, determinism/schedulability.

Objective

Develop a functional prototype of the multilevel platform to confirm scalability without loss of functionality.

(Context: a full build would take several years—for example, the Thales Smart Digital Platform took 3+ years.)

REQUIREMENTS

🆔	📋 Requirement
E1	Filter non-compliant packets
E2	Inspect packet content
EA1	Passively and centrally log application activity
EA2	Verify the authenticity of packets
EA3	Verify the integrity of packets
EM1	Ensure real-time performance (< 10 ms response time)
EI1	Adhere to secure development standards (state of the art)