On the Integration of Security and Dependability in Computer Systems
Paper in proceedings, 1992

Historically the trustworthiness of a computer system was characterized by its reliability and availability. Later on safety was integrated into what is now termed dependability. System security was originally a concept that described the protection of information from intentional and hostile interaction. It has now been suggested that security should be treated as a dependability attribute, parallel to reliability, availability and safety, but the implications of this integration has not yet been fully realized. This paper presents a novel approach to security, intended to facilitate and improve this integration. This is accomplished by taking a dependability viewpoint on traditional security and interpreting it in terms of system behaviour and fault prevention. A modified security concept, comprising only fault prevention characteristics and a new behaviouristic concept, privacy, are defined. The outcome of this interpretation will influence the integration of the other three dependability attributes.


fault prevention





Erland Jonsson

Department of Computer Engineering

Tomas Olovsson

Department of Computer Engineering

IASTED International Conference on Reliability, Quality Control and Risk Assessment Washington DC, USA, 1992, ISBN 0-88986-171-4


Subject Categories

Computer Engineering

Information Science

Areas of Advance

Information and Communication Technology

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