Kumar, Liyanage, Ahmad, Braeken, and Ylianttila
278
privacy concerns for the subscribers. The subscribers may even not want to reveal his/
her real identity in environments that are unfamiliar to them. An anonymity‐based
solution is preferable in such scenarios.
Then identity management mechanisms are discussed, which is another key area to
focus while designing the standards and regulation for 5G. New 5G radio access technologies for certain applications, such as industry automation, can be beneficial in
terms of low cost and high quality of services. In such cases, it is required to have device
identity management for 5G access in various industries. Also, similar kinds of identity
mechanisms are needed in situations involving satellite networks and dual satellite and
terrestrial 5G access.
Finally, trust is as equally important as privacy and should be taken care of properly
in parallel. The trust must cover both human and machine perspectives and trustworthiness by design methodologies. We have explained the entities and elements
involved in current 4G networks and highlighted the trust aspects among them. There
are no complete standardized trust models available for 4G networks, but various
concepts from them can be useful in building the trust among various stakeholders in
5G. The role of privacy would be considered vital in defining the actors for modelling
the trust in 5G networks. The ideal trust model for 5G network should be able to
answer the questions such as “for what one does on trust?”, “how much should one
trust?”, and “how much anyone can trust?”
12.7 Conclusion
This chapter primarily focused on privacy, identity and trust challenges of the user in
future 5G systems. It is undoubtedly agreed by all entities and actors involved in 5G
technology that without handling the privacy properly, 5G would face larger obstacles
in the way of complete acceptance, adoption and success among their users. From the
user’s point of view, data, location and identity privacy are the basic-key elements to
consider. In the 5G system, privacy features must be considered right from the designing phase and some of them should be built into the system. Furthermore, the system
should be intelligent enough and can adopt the privacy accordingly to the degree of
importance of services. The context aware applications and services would also require
more focused privacy solutions.
5G will be the driving force of many other technologies, such as IoT and therefore
an enormous number of users and smart devices would come into action. It is necessary to have a secure identity management mechanism for both subscriber and device.
The privacy sometimes has a conflicting relationship with trust, as more trust on
service provider can increase the risk of privacy violations. Future 5G systems will
introduce new business models that will eventually increase the number of stakeholders
and therefore trust association among each of them will be crucial. 5G technology
might use some similar concepts to existing trust models, along with the addition of
few new actors and entities.
278
privacy concerns for the subscribers. The subscribers may even not want to reveal his/
her real identity in environments that are unfamiliar to them. An anonymity‐based
solution is preferable in such scenarios.
Then identity management mechanisms are discussed, which is another key area to
focus while designing the standards and regulation for 5G. New 5G radio access technologies for certain applications, such as industry automation, can be beneficial in
terms of low cost and high quality of services. In such cases, it is required to have device
identity management for 5G access in various industries. Also, similar kinds of identity
mechanisms are needed in situations involving satellite networks and dual satellite and
terrestrial 5G access.
Finally, trust is as equally important as privacy and should be taken care of properly
in parallel. The trust must cover both human and machine perspectives and trustworthiness by design methodologies. We have explained the entities and elements
involved in current 4G networks and highlighted the trust aspects among them. There
are no complete standardized trust models available for 4G networks, but various
concepts from them can be useful in building the trust among various stakeholders in
5G. The role of privacy would be considered vital in defining the actors for modelling
the trust in 5G networks. The ideal trust model for 5G network should be able to
answer the questions such as “for what one does on trust?”, “how much should one
trust?”, and “how much anyone can trust?”
12.7 Conclusion
This chapter primarily focused on privacy, identity and trust challenges of the user in
future 5G systems. It is undoubtedly agreed by all entities and actors involved in 5G
technology that without handling the privacy properly, 5G would face larger obstacles
in the way of complete acceptance, adoption and success among their users. From the
user’s point of view, data, location and identity privacy are the basic-key elements to
consider. In the 5G system, privacy features must be considered right from the designing phase and some of them should be built into the system. Furthermore, the system
should be intelligent enough and can adopt the privacy accordingly to the degree of
importance of services. The context aware applications and services would also require
more focused privacy solutions.
5G will be the driving force of many other technologies, such as IoT and therefore
an enormous number of users and smart devices would come into action. It is necessary to have a secure identity management mechanism for both subscriber and device.
The privacy sometimes has a conflicting relationship with trust, as more trust on
service provider can increase the risk of privacy violations. Future 5G systems will
introduce new business models that will eventually increase the number of stakeholders
and therefore trust association among each of them will be crucial. 5G technology
might use some similar concepts to existing trust models, along with the addition of
few new actors and entities.