Independent Co-Assurance using the Safety-Security Assurance Framework (SSAF): A Bayesian Belief Network Implementation for IEC 61508 and Common Criteria

TL;DR

This paper presents an independent co-assurance approach utilizing a Bayesian Belief Network within the Safety-Security Assurance Framework to evaluate compliance with IEC 61508 and Common Criteria standards.

Contribution

It introduces a novel Bayesian Belief Network implementation for integrated safety and security assurance aligned with IEC 61508 and Common Criteria.

Findings

Effective modeling of safety-security assurance using Bayesian networks

Improved assessment consistency across standards

Framework applicability demonstrated on IEC 61508 and Common Criteria

Abstract

Safety Security Assurance Framework applied to two standards IEC 61508 and Common Criteria - ISO 15408