Alice and Bob in love cryptographic communication using shared experiences

Joseph Bonneau

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We propose a protocol for secure communication between two parties who know each other well using only pre-existing shared knowledge from their shared life experience. This could enable, for example, lovers or close friends to communicate over a one-way channel without prior key exchange. Our system uses a flexible secret-sharing mechanism to accommodate pieces of personal knowledge of variable guessing resistance and memorability, with reasonable overhead in terms of computation and storage.

Original languageEnglish (US)
Title of host publicationSecurity Protocols XVII - 17th International Workshop, Revised Selected Papers
PublisherSpringer Verlag
Number of pages10
ISBN (Print)9783642362125
StatePublished - 2013
Event17th International Security Protocols Workshop - Cambridge, United Kingdom
Duration: Apr 1 2009Apr 3 2009

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7028 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other17th International Security Protocols Workshop
Country/TerritoryUnited Kingdom

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science


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