Page 186 - Trust in ICT 2017

3 Trust in ICT

Figure 6-1 – Attributes for trust

6.3 Relationship among security, privacy and trust
 Security: systems need a variety of methods to prevent behaviours with malicious intents. Security
mainly concerns technological aspects such as the confidentiality, availability and integrity. It also
includes attack detection and recovery/resilience.
 Privacy: users need the protection of their personal information related to their behaviours and
interactions with other people, services and devices. Privacy mainly concerns user aspects to
support anonymity and restrictive handling of personal user data.
 Trust: trust is broader concept that can cover security and privacy (Figure 6-2). Trust revolves
confidence that people, data, devices will function or behave in expected ways. Trust can be used
to build new value-chain for future ICT infrastructure and services.
For example, security and privacy have controlled a system and data securely in social-cyber-physical
domains. However, traditional secure system concerns about how to authorize the entities as well as how to
provide data to the authorized entities. Trust can give reliability to security and privacy as a parameter by
measuring a discrepancy between observation and objective or subjective expectation of the reliable entities
and data.

Figure 6-2 – Relationship among security, privacy and trust with different aspects

178