Page 22 - Trust in ICT 2017

1 Trust in ICT

In a specific context, for instance in IoT, trust is reliance on the integrity, ability or character of an entity.
Trust can be further explained in terms of confidence in the truth or worth of an entity. For example, EU
uTRUSTit project defined that trust is the user’s confidence in an entity’s reliability, including user's
acceptance of vulnerability in a potentially risky situation [8].

4.4.1 Knowledge and Trust

To understand trust, it is required to analyse the collected data from entities, extract the necessary
information for trust; understand the information and then create the trust-related knowledge for the trust
computation.

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Figure 1 – Knowledge and Trust

The social and economic value of data is mainly reaped during two moments: first when data is transformed
into knowledge (gaining insights) and then when it is used for decision making (taking action). The knowledge
is accumulated by individuals or systems through data analytics over time. So far data processing,
management and interpretation for awareness and understanding have been considered as fundamental
processes for obtaining the knowledge. As shown in Figure 1, trust is positioned as belief between knowledge
(i.e., awareness and understanding) and action. It means that expectation process for trust should be
additionally considered before decision making.

4.4.2 Relationships with security and privacy

Definition of security and privacy:
Security concerns the confidentiality, availability and integrity of data or information. Security may also
include authentication and non-repudiation.
Privacy concerns the expression of or adherence to various legal and non-legal norms. In the certain contexts
this is often understood as compliance with data protection regarding the right to private life. Although it
would be highly complex to map into personal data protection, the globally accepted privacy principles give
a useful frame: consent, purpose restriction, legitimacy, transparency, data security and data subject
participation.
As shown in Figure 4, trust can be interpreted as 3 different views:
• Trust has intersections with security and privacy (Left hand side of Figure 4);

• Trust has more broad scope covering security and other aspects such as reliability, dependability
and ability (Middle of Figure 4);
• Trust has independent area compared to privacy and security. Trust mainly concerns beliefs,
credentials, delegation, recommendation and reputation (Right hand side of Figure 4).

1 Illustration compiled from trust pyramid - http://www.johnhaydon.com/how-make-people-trust-your-nonprofit/

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