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dc.contributor.authorBoyd, Colin Alexander
dc.contributor.authorDavies, Gareth Thomas
dc.contributor.authorGjøsteen, Kristian
dc.contributor.authorJiang, Yao
dc.date.accessioned2019-04-11T09:14:16Z
dc.date.available2019-04-11T09:14:16Z
dc.date.created2018-12-05T16:56:39Z
dc.date.issued2018
dc.identifier.citationLecture Notes in Computer Science. 2018, 11060 LNCS 268-285.nb_NO
dc.identifier.issn0302-9743
dc.identifier.urihttp://hdl.handle.net/11250/2594179
dc.description.abstractWe design a group key exchange protocol with forward secrecy where most of the participants remain offline until they wish to compute the key. This is well suited to a cloud storage environment where users are often offline, but have online access to the server which can assist in key exchange. We define and instantiate a new primitive, a blinded KEM, which we show can be used in a natural way as part of our generic protocol construction. Our new protocol has a security proof based on a well-known model for group key exchange. Our protocol is efficient, requiring Diffie–Hellman with a handful of standard public key operations per user in our concrete instantiation.nb_NO
dc.language.isoengnb_NO
dc.publisherSpringer, Chamnb_NO
dc.titleOffline Assisted Group Key Exchangenb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber268-285nb_NO
dc.source.volume11060 LNCSnb_NO
dc.source.journalLecture Notes in Computer Sciencenb_NO
dc.identifier.doi10.1007/978-3-319-99136-8_15
dc.identifier.cristin1639612
dc.relation.projectNorges forskningsråd: 248166nb_NO
cristin.unitcode194,63,30,0
cristin.unitcode194,63,15,0
cristin.unitnameInstitutt for informasjonssikkerhet og kommunikasjonsteknologi
cristin.unitnameInstitutt for matematiske fag
cristin.ispublishedtrue
cristin.fulltextpreprint
cristin.qualitycode1


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