Security and Communication Networks / 2019 / Article / Tab 1

Research Article

Security Requirements Engineering in Safety-Critical Railway Signalling Networks

Table 1

Examples of identified threats with assigned values for the attacker. FR: foundational requirement, R: resources, K: knowledge, PSL: preliminary security level, LOC: location, TRA: traceability, EXT: extent of damage, SL: security level.

Threat FR R K PSL LOC TRA EXT SL

T.SI.Attacker.Malware SI 3 4 4 0 0 0 4
T.RA.Attacker.DoS RA 2 2 2 0 0 1 1
T.DC.Attacker.TrafficAnalysis DC 2 2 2 1 0 1 1

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