Title: Basic aspects in redundancy-based intrusion tolerance

Authors: Felicita Di Giandomenico, Giulio Masetti (both ISTI-CNR Pisa)

Publication info:  CISIS 2021 Conference http://2021.cisisconference.eu/

14th International Conference on Computational Intelligence in Security for Information Systems and 12th International Conference on European Transnational Educational (CISIS 2021 and ICEUTE 2021). CISIS – ICEUTE 2021. Advances in Intelligent Systems and Computing, vol 1400. 23 September 2021

DOI: 10.1007/978-3-030-87872-6_19

Abstract:

This paper addresses intrusion tolerance in ICT systems (that is, how to guarantee the correct operation even when some of its parts are compromised), by adopting a redundancy approach. As an initial step to the process of incorporating redundancy features to enhance robustness of a system/subsystem to cyber attacks that end up with an intrusion, a conceptual framework encompassing the major aspects to be taken into account, regarding both system and redundancy characteristics, is proposed. This is the basis for reasoning on effective redundancy solutions, so a useful support for defining systems that need to satisfy resilience properties in hostile environments where threats include both intentional attacks and accidental faults.

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