Trust in cybersecurity: a building block or a unifying concept?
- 14:00 20th November 2017 ( Michaelmas Term 2017 )LTB
Cybersecurity encompasses a set of diverse problems that are difficult to resolve due to its multi-disciplinary nature. The broad definition of cybersecurity encompasses a range of subfields, from computer and network security to cryptography, psychology, human behavior, economics, policy, and international norms. The interplay of the subjects is clearly important for the theory and practice in cybersecurity, but the underlying relationships between the components remain elusive, making it harder to define cybersecurity as a science.
Trust is a foundational concept in cybersecurity, and potentially its unifying force, but the link is not straightforward. People develop trust in other people, polices, information and conventional products in ways that don't easily translate to the models used to define trust between devices and networks or between organisations or between organisations and their employees. Yet the broad definition of cybersecurity include a wide range of diverse contexts.
The talk will examine trust in a number of different domains. From the human side of trust, to cryptographically-supported trusted systems, to policies that help maintain trust, a broad view on the topic will be presented. What are the foundations of the individual’s trust in technology and what are the consequences of the lack of trust? How can trust between systems depend on subtle differences in the integrated circuits in their hardware? Can technical trust be nuanced, allowing a system to trust another system a little or a lot, depending on the circumstances? How is trust misused by cyber criminals, and how can technology and cyber norms stop them? How is trust connected to privacy? We will touch upon many of these questions. Like cybersecurity, trust is complex and multi-faceted, but it is a concept that is easier to define and one that can help explain many successes and failures in cybersecurity.