Page 249 - Trust in ICT 2017

Trust in ICT 5

Summary

This Recommendation provides an overview of trust provisioning in ICT infrastructures and services. It
introduces necessity of trust to cope with potential risks due to lack of trust. The concept of trust provisioning
is explained on the trusted ICT infrastructures and services. From the general concept of trust, the key
characteristics of trust are described. In addition, the trust relationship model and trust evaluation based on
the conceptual model of trust provisioning are introduced. Finally, it describes trust provisioning processes
in ICT infrastructures and services.

NOTE – Details of potential risks and trustworthiness attributes, and use cases of trust provisioning are also
provided in the informative appendices.

Keywords
Trust, Trust provisioning, Trust index, Trusted ICT infrastructure

1 Scope

This Recommendation provides an overview of trust provisioning in ICT infrastructures and services. More
specifically, this Recommendation covers the following:
– potential risks and necessity of trust;
– trusted ICT infrastructures and services;
– the concept of trust and characteristics of trust;
– trust relationship model and trust evaluation based on the conceptual model of trust provisioning;

– trust provisioning processes.
NOTE – Detailed potential risks are provided in Appendix I, trustworthiness attributes is described in
Appendix II, and use cases of trust provisioning are provided in Appendix III.

2 References
The following ITU-T Recommendations and other references contain provisions which, through reference in
this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated
were valid. All Recommendations and other references are subject to revision; users of this Recommendation
are therefore encouraged to investigate the possibility of applying the most recent edition of the
Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is
regularly published. The reference to a document within this Recommendation does not give it, as a stand-
alone document, the status of a Recommendation.

None.

3 Definitions

3.1 Terms defined elsewhere
This Recommendation uses the following terms defined elsewhere:

None.

3.2 Terms defined in this Recommendation

This Recommendation defines the following terms:
3.2.1 Trust: Trust is the measureable belief and/or confidence which represents accumulated value from
history and the expecting value for future.

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