BUILDING OF A MULTILEVEL SECURITY  PLATFORM [PMN]

SUMMARY: 

 

 

 

 

  • Companies presentation:  DGA  & DGA  Missile  Tests
  • Mission context
  • Methodology
  • Resources
  • Production
  • Conclusion

 

GENERAL

DIRECTORATE

FOR

ARMAMENT

DGA - EM : MISSILE TESTING

R&D

Military training

Testing new armaments

Context

ANSSI

Context

ANSSI

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.

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.)

Methodology

Milestones & Deliverables

  • Assessment: documentation and state of the art

  • Architecture diagrams

  • Miscellaneous documents: resources,procedures, functional documentation

  • Unit tests

  • Prototype

Resources

People:

  • Technical lead

  • Developer(s)

  • Cybersecurity expert

  • Testers

Resources

Software:

  • GitLab

  • SonarQube

  • Rust / Python

  • Repositories

Resources

Hardware:

  • Secure development environments

  • Servers for multilevel testing

Resources

Hardware:

  • Secure development environments

  • Servers for multilevel testing

Software:

  • GitLab

  • SonarQube

  • Rust / Python

  • Repositories

People:

  • Technical lead

  • Developer(s)

  • Cybersecurity expert

  • Testers

Risks

  • Technical complexity (standards / Rust / cybersecurity scope)

  • Time constraints

  • Real-time constraints

  • Limited resources (single person assigned)

Mitigation strategies: documentation, code reviews, security testing, regular consultations.

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.

Calendar & Milestones

  • Weeks 1-2 : Initialization (analysis & confirmation of the needs)
  • Weeks 3-8 : Conception (diagrams, planning)
  • Weeks 9-20 : Implementation & Unit tests
  • Weeks  21-26 : Assembly
  • Weeks 27-30 : Security audit & showcase
  • Weeks 31-32 : Final review

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)

What

have

been done

Calendar & Milestones

Documentary ANALYSIS

Documents studied :

  • The ANSSI guide on the development of a multilevel architecture 
  • NATO's metadata system standard 
  • DO-178C on securing critical systems

 

Document analysis:    GUIDE ON THE DEVELOPMENT OF A MULTILEVEL ARCHITECTURE

Note: 

The National Cybersecurity Agency is the national authority for cybersecurity and cyber defense in France. The purpose of ANSSI is to build and organize, in an inter-ministerial manner, the protection of the Nation against cyberattacks, and to contribute to the stability of cyberspace.

ANSSI

Definitions :

  1.  IS : Information System, a group of organized resources (software / hardware / HR)
  2. Metadata : Metadata is data that describes other data like author, date, format, and keywords to enable organization, discovery, and management.

Document analysis:    GUIDE ON THE DEVELOPMENT OF A MULTILEVEL ARCHITECTURE

Document analysis:    GUIDE ON THE DEVELOPMENT OF A MULTILEVEL ARCHITECTURE

??

Document analysis:    GUIDE ON THE DEVELOPMENT OF A MULTILEVEL ARCHITECTURE

??

OK

Document analysis:    GUIDE ON THE DEVELOPMENT OF A MULTILEVEL ARCHITECTURE

Document analysis:    GUIDE ON THE DEVELOPMENT OF A MULTILEVEL ARCHITECTURE

Document ANALysis:   NATO's metadata system standard

[]

Document ANALysis:   NATO's metadata system standard

[]

SPIF

Document ANALysis:   NATO's metadata system standard

[]

Document ANALysis:   NATO's metadata system standard

[]

MetaConfidentiality  =>  confidentiality level Hash

 

originatorConfidentiality  =>  Launch & Context Hash

Document ANALysis:   NATO's metadata system standard

[]

1

2

Document ANALysis:   NATO's metadata system standard

[]

Private

1

2

Public

Document ANALysis:   NATO's metadata system standard

[]

1

2

Public

Private

Public

Public

Private

Choice of PROGRAMMING LANGUAGE

The SIMULATOR 

The SIMULATOR 

  1. Customizable data layout
  2. Include simulation data ( Time / position ...)
  3. Easy to use

the encapsulator & THE PMN

DATA

Metadata

BENCHMARKING

Conclusion