dc.contributor.author | Boyd, Colin Alexander | |
dc.contributor.author | Davies, Gareth Thomas | |
dc.contributor.author | Gjøsteen, Kristian | |
dc.contributor.author | Jiang, Yao | |
dc.date.accessioned | 2019-04-11T09:14:16Z | |
dc.date.available | 2019-04-11T09:14:16Z | |
dc.date.created | 2018-12-05T16:56:39Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Lecture Notes in Computer Science. 2018, 11060 LNCS 268-285. | nb_NO |
dc.identifier.issn | 0302-9743 | |
dc.identifier.uri | http://hdl.handle.net/11250/2594179 | |
dc.description.abstract | We 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.iso | eng | nb_NO |
dc.publisher | Springer, Cham | nb_NO |
dc.title | Offline Assisted Group Key Exchange | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 268-285 | nb_NO |
dc.source.volume | 11060 LNCS | nb_NO |
dc.source.journal | Lecture Notes in Computer Science | nb_NO |
dc.identifier.doi | 10.1007/978-3-319-99136-8_15 | |
dc.identifier.cristin | 1639612 | |
dc.relation.project | Norges forskningsråd: 248166 | nb_NO |
cristin.unitcode | 194,63,30,0 | |
cristin.unitcode | 194,63,15,0 | |
cristin.unitname | Institutt for informasjonssikkerhet og kommunikasjonsteknologi | |
cristin.unitname | Institutt for matematiske fag | |
cristin.ispublished | true | |
cristin.fulltext | preprint | |
cristin.qualitycode | 1 | |