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Combined schemes for signature and encryption: The public-key and the identity-based setting

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dc.affiliation.dptoUC3M. Departamento de Matemáticases
dc.contributor.authorGonzález Vasco, María Isabel
dc.contributor.authorHess, Florian
dc.contributor.authorSteinwandt, Rainer
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.date.accessioned2023-06-02T07:59:28Z
dc.date.available2023-06-02T07:59:28Z
dc.date.issued2016-04
dc.description.abstractConsider a scenario in which parties use a public-key encryption scheme and a signature scheme with a single public key/private key pair-so the private key sk is used for both signing and decrypting. Such a simultaneous use of a key is in general considered poor cryptographic practice, but from an efficiency point of view looks attractive. We offer security notions to analyze such violations of key separation. For both the identity-and the non-identity-based setting, we show that-although being insecure in general-for schemes of interest the resulting combined scheme can offer strong security guarantees.en
dc.description.sponsorshipFirst and last author were supported by the Spanish Ministerio de Economía y Competitividad through the project grant MTM-2012-15167.en
dc.format.extent10
dc.identifier.bibliographicCitationGonzález Vasco, M. I., Hess, F., & Steinwandt, R. (2016). Combined schemes for signature and encryption: The public-key and the identity-based setting. Information and Computation, 247, 1-10.en
dc.identifier.doihttps://doi.org/10.1016/j.ic.2015.11.001
dc.identifier.issn0890-5401
dc.identifier.publicationfirstpage1
dc.identifier.publicationlastpage10
dc.identifier.publicationtitleInformation and Computationen
dc.identifier.publicationvolume247
dc.identifier.urihttps://hdl.handle.net/10016/37412
dc.identifier.uxxiAR/0000032358
dc.language.isoeng
dc.publisherElsevieren
dc.relation.projectIDGobierno de España. MTM-2012-15167es
dc.rights© 2015 Elsevier Inc.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaInformáticaes
dc.subject.ecienciaMatemáticases
dc.subject.otherCombined schemeen
dc.subject.otherIdentity-based cryptographyen
dc.subject.otherKey separationen
dc.subject.otherPublic-key cryptographyen
dc.titleCombined schemes for signature and encryption: The public-key and the identity-based settingen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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