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SUMMARY:Jamming-resistant Key Establishment using Uncoordinated Frequency 
 Hopping  
DTSTART:20090625T111500
DTSTAMP:20260407T103007Z
UID:0f21994d7a4783923ca3279e1377dc555bd38d817c841fb213e6f71b
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Mario Cagalj\, University of Split\, Croatia\nWe conside
 r the following problem: how can two devices that do not share any secrets
  establish a shared secret key over a wireless radio channel in the presen
 ce of a communication jammer? An inherent challenge in solving this proble
 m is that known anti-jamming techniques (e.g.\, frequency hopping or direc
 t-sequence spread spectrum) which should support device communication duri
 ng the key establishment require that the devices share a secret spreading
  key (or code) prior to the start of their communication. This requirement
  creates a circular dependency between antijamming spread-spectrum communi
 cation and key establishment\, which has so far not been addressed. In thi
 s talk\, we present an Uncoordinated Frequency Hopping (UFH) scheme that b
 reaks this dependency and enables key establishment in the presence of a c
 ommunication jammer. We provide a detailed analysis of our UFH scheme and 
 show its feasibility\, both in terms of execution time and resource requir
 ements. \nProf. Cagalj's homepage
LOCATION:BC 01 https://plan.epfl.ch/?room==BC%2001
STATUS:CONFIRMED
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