Show simple item record

dc.contributor.authorKent, Adrianen
dc.contributor.authorPitalúa-García, Den
dc.date.accessioned2021-05-03T23:31:21Z
dc.date.available2021-05-03T23:31:21Z
dc.date.issued2020-02-01en
dc.identifier.issn2469-9926
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/321871
dc.description.abstractS-money [A. Kent, Proc. R. Soc. A 475, 20190170 (2019)10.1098/rspa.2019.0170] schemes define virtual tokens designed for networks with relativistic or other trusted signaling constraints. The tokens allow near-instant verification and guarantee unforgeability without requiring quantum state storage. We present refined two stage S-money schemes. The first stage, which may involve quantum information exchange, generates private user token data. In the second stage, which need only involve classical communications, users determine the valid presentation point, without revealing it to the issuer. This refinement allows the user to determine the presentation point anywhere in the causal past of all valid presentation points. It also allows flexible transfer of tokens among users without compromising user privacy.
dc.rightsAll rights reserved
dc.titleFlexible quantum tokens in spacetimeen
dc.typeArticle
prism.issueIdentifier2en
prism.publicationDate2020en
prism.publicationNamePhysical Review Aen
prism.volume101en
dc.identifier.doi10.17863/CAM.69330
rioxxterms.versionofrecord10.1103/PhysRevA.101.022309en
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2020-02-01en
dc.contributor.orcidKent, Adrian [0000-0003-2624-3687]
dc.identifier.eissn2469-9934
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (via University of York) (EP/M013472/1)


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record