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TPHOL
2009
IEEE
14 years 2 months ago
Formalising Observer Theory for Environment-Sensitive Bisimulation
Abstract. We consider a formalisation of a notion of observer (or intruder) theories, commonly used in symbolic analysis of security protocols. An observer theory describes the kno...
Jeremy E. Dawson, Alwen Tiu
FC
2007
Springer
117views Cryptology» more  FC 2007»
14 years 1 months ago
Using a Personal Device to Strengthen Password Authentication from an Untrusted Computer
Keylogging and phishing attacks can extract user identity and sensitive account information for unauthorized access to users’ financial accounts. Most existing or proposed solut...
Mohammad Mannan, Paul C. van Oorschot
SPC
2005
Springer
14 years 1 months ago
Supporting Dynamically Changing Authorizations in Pervasive Communication Systems
In pervasive computing environments, changes in context may trigger changes in an individual’s access permissions. We contend that existing access control frameworks do not provi...
Adam J. Lee, Jodie P. Boyer, Chris Drexelius, Pras...
DCOSS
2010
Springer
13 years 11 months ago
Wormholes No More? Localized Wormhole Detection and Prevention in Wireless Networks
A number of protocols have been proposed to date to defend against wormhole attacks in wireless networks by adopting synchronized clocks, positioning devices, or directional antenn...
Tassos Dimitriou, Thanassis Giannetsos
AAAI
2008
13 years 10 months ago
Semantical Considerations on Dialectical and Practical Commitments
This paper studies commitments in multiagent systems. A dialectical commitment corresponds to an agent taking a position about a putative fact, including for the sake of argument....
Munindar P. Singh