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Towards Perfectly Secure and Deniable Communication Using an NFC-Based Key-Exchange Scheme
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för informations- och kommunikationssystem.
2015 (engelsk)Inngår i: SECURE IT SYSTEMS, NORDSEC 2015, 2015, Vol. 9417, s. 72-87Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
2015. Vol. 9417, s. 72-87
Serie
Lecture Notes in Computer Science
Emneord [en]
Deniability; Deniable encryption; Authenticated encryption; Perfect secrecy; Off-the-record; Key-exchange; Near-field communication; Surveillance
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Identifikatorer
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
Konferanse
20th Nordic Conference on Secure IT Systems (NordSec), KTH Royal Inst Technol, Stockholm, SWEDEN, OCT 19-21, 2015
Tilgjengelig fra: 2016-12-21 Laget: 2016-12-21 Sist oppdatert: 2017-09-14bibliografisk kontrollert

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