The Resilience Model Supporting IIoT System Trustworthiness
Framework, 6 resilience is one of the key
system characteristics which make the
system trustworthy. Trustworthiness is
defined as “a degree of confidence one has
that the system performs as expected with
characteristics including safety, security,
privacy, reliability and resilience in the face
of environmental disruptions, human errors,
system faults and attacks”.
R ELATED W ORK
The most pertinent document considering
cyber resilience is the already mentioned
Volume 2 of the NIST Special Publication
800-160 which is in a draft state at the
moment of writing this paper. It defines the
goals and objectives for resilience property,
techniques and approaches for its
implementation, and their relations. 7
Figure 1: Trustworthiness of an IIoT System
The appropriate relationship is shown in
Figure 1. The mentioned NIST Special Publication on
Cyber Resiliency Considerations defines the
resilience goals as follows:
6 Framework.
Industrial Internet of Things. Volume G4: Security
http://www.iiconsortium.org/pdf/IIC_PUB_G4_V1.00_PB-3.pdf
7
Industrial
Internet
Consortium,
2016.
While the referred document is currently a draft, we believe that its key provisions will not change significantly in its stable
version.
September 2018
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