trust between heterogeneous subjects
Define trust model
Consider risks derived from malicious or unintentional
misuse of IoT systems^5Tactics Harden root of trust
Ensure physical security and implement tampering
detection
Ensure and check data freshness
Consider the impact of security/performance tradeoffs
on trust
Use (trusted) infrastructural Trust and Reputation
Agents for scalability
Use security imprinting
Check system integrity often
Balance privacy vs. non-repudiation (accountability)Table 7 : Trust Perspective (extended from [Rozanski 2005])4.3.3.2 Security
Security is an essential quality of an IoT system and it is tightly related to
specific security features which are often a basic prerequisite for enabling Trust
and Privacy qualities in a system.
(^5) For example, simulating traffic by broadcasting car-to-infrastructure signals or inducing emergency
maneuvers in ships or planes by simulating adverse environmental conditions. Generally, it is possible to
make a fictional situation credible if the assumption that Physical and Virtual Entities are always and
securely synchronized is overlooked.