Blar i SINTEF Open på forfatter "Frøystad, Christian"
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An experimental evaluation of bow-tie analysis for cybersecurity requirements
Meland, Per Håkon; Bernsmed, Karin; Frøystad, Christian; Li, Jingyue; Sindre, Guttorm (Journal article; Peer reviewed, 2019)Bow-tie analysis includes a graphical representation for depicting threats and consequences related to unwanted events, and shows how preventive and reactive barriers can provide control over such situations. This kind of ... -
Five Things You Should Not Use Blockchain For
Jaatun, Martin Gilje; Haro, Peter; Frøystad, Christian (Chapter, 2020)The Bitcoin fever notwithstanding, the underlying blockchain technology cannot solve all data exchange and product needs, as some seem to believe. This paper provides examples of problems that we believe are poorly suited ... -
The need for a public key infrastructure for automated and autonomous ships
Rødseth, Ørnulf Jan; Frøystad, Christian; Meland, Per Håkon; Bernsmed, Karin; Nesheim, Dag Atle (Peer reviewed; Journal article, 2020)Shipping undergoes rapid digitization, covering safety and security reporting, mandatory ship documentation, electronic port clearance as well as commercial and operational information exchanges. Increasing automation of ... -
Protecting Future Maritime Communication
Frøystad, Christian; Bernsmed, Karin; Meland, Per Håkon (Chapter, 2017)Our oceans are filled with ships that take care of the most important distribution of goods in the world economy. Evolving from isolated chunks of hollow metal containers, ships are becoming more and more like interconnected ... -
Security Incident Information Exchange for Cloud Service Provisioning Chains
Frøystad, Christian; Tøndel, Inger Anne; Jaatun, Martin Gilje (Journal article; Peer reviewed, 2018)Online services are increasingly becoming a composition of different cloud services, making incident-handling difficult, as Cloud Service Providers (CSPs) with end-user customers need information from other providers about ... -
Security Requirements for SATCOM Datalink Systems for Future Air Traffic Management
Bernsmed, Karin; Frøystad, Christian; Meland, Per Håkon; Myrvoll, Tor Andre (Chapter, 2017)Aircraft equipped with satellite communication (SATCOM) systems will enable advanced Air Traffic Management (ATM) operations over datalink on a global basis. A key concept of future ATM is 4D trajectory management, which ... -
Visualizing Cyber Security Risks with Bow-Tie Diagrams
Bernsmed, Karin; Frøystad, Christian; Meland, Per Håkon; Nesheim, Dag Atle; Rødseth, Ørnulf Jan (Journal article; Peer reviewed, 2018)Safety and security risks are usually analyzed independently, by different people using different tools. Consequently, the system analyst may fail to realize cyber attacks as a contributing factor to safety impacts or, on ... -
Visualizing Cyber Security Risks with Bow-Tie Diagrams
Bernsmed, Karin; Frøystad, Christian; Meland, Per Håkon; Nesheim, Dag Atle; Rødseth, Ørnulf Jan (Journal article; Peer reviewed, 2018-01-19)Safety and security risks are usually analyzed independently, by different people using different tools. Consequently, the system analyst may fail to realize cyber attacks as a contributing factor to safety impacts or, on ... -
What Could Possibly Go Wrong? Smart Grid Misuse Case Scenarios
Tøndel, Inger Anne; Borgaonkar, Ravishankar Bhaskarrao; Jaatun, Martin Gilje; Frøystad, Christian (Chapter, 2020)The modernisation of the power grid is ongoing, and the level of digitalisation of the power grid in, say, ten years may be quite different than today. Cyber security needs will change correspondingly. In this paper we ...