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Towards Perfectly Secure and Deniable Communication Using an NFC-Based Key-Exchange Scheme
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information and Communication systems.
2015 (English)In: SECURE IT SYSTEMS, NORDSEC 2015, 2015, Vol. 9417, p. 72-87Conference paper, Published paper (Refereed)
Abstract [en]

In this paper we first analyse the possibility for deniability under a strong adversary, who has an Internet-wide transcript of the communication. Secondly, we present a scheme which provides the desirable properties of previous messaging schemes, but with stronger deniability under the new adversary model. Our scheme requires physical meetings for exchanges of large amounts of random key-material via near-field communication and later uses this random data to key a one-time pad for text-messaging. We prove the correctness of the protocol and, finally, we evaluate the practical feasibility of the suggested scheme.

Place, publisher, year, edition, pages
2015. Vol. 9417, p. 72-87
Series
Lecture Notes in Computer Science
Keywords [en]
Deniability; Deniable encryption; Authenticated encryption; Perfect secrecy; Off-the-record; Key-exchange; Near-field communication; Surveillance
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:miun:diva-29724DOI: 10.1007/978-3-319-26502-5_6ISI: 000374098500006Scopus ID: 2-s2.0-84951873415OAI: oai:DiVA.org:miun-29724DiVA, id: diva2:1058816
Conference
20th Nordic Conference on Secure IT Systems (NordSec), KTH Royal Inst Technol, Stockholm, SWEDEN, OCT 19-21, 2015
Available from: 2016-12-21 Created: 2016-12-21 Last updated: 2020-08-04Bibliographically approved

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Kjellqvist, Martin

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf