Blar i NTNU Open på forfatter "Gellert, Kai"
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A Modern View on Forward Security
Boyd, Colin Alexander; Gellert, Kai (Peer reviewed; Journal article, 2020)Forward security ensures that compromise of entities today does not impact the security of cryptographic primitives employed in the past. Such a form of security is regarded as increasingly important in the modern world ... -
On Optimal Tightness for Key Exchange with Full Forward Secrecy via Key Confirmation
Gellert, Kai; Gjøsteen, Kristian; Jacobsen, Håkon; Jager, Tibor (Journal article; Peer reviewed, 2023)A standard paradigm for building key exchange protocols with full forward secrecy (and explicit authentication) is to add key confirmation messages to an underlying protocol having only weak forward secrecy (and implicit ... -
Symmetric Key Exchange with Full Forward Security and Robust Synchronization
Boyd, Colin Alexander; Davies, Gareth T.; de Kock, Bor; Gellert, Kai; Jager, Tibor; Millerjord, Lise (Peer reviewed; Journal article, 2021)We construct lightweight authenticated key exchange protocols based on pre-shared keys, which achieve full forward security and rely only on simple and efficient symmetric-key primitives. All of our protocols have rigorous ...