Hybrid Publicly Verifiable Computation. / Alderman, James; Janson, Christian; Crampton, Jason; Cid, Carlos.

Topics in Cryptology - CT-RSA 2016. ed. / Kazue Sako. Vol. 9610 Springer, 2016. p. 147-163 (Lecture Notes in Computer Science).

Research output: Chapter in Book/Report/Conference proceedingConference contribution





Publicly Verifiable Outsourced Computation (PVC) allows weak devices to delegate computations to more powerful servers, and to verify the correctness of results. Delegation and verification rely only on public parameters, and thus PVC lends itself to large multi-user systems where entities need not be registered. In such settings, individual user requirements may be diverse and cannot be realised with current PVC solutions. In this paper, we introduce Hybrid PVC (HPVC) which, with a single setup stage, provides a flexible solution to outsourced computation supporting multiple modes: (i) standard PVC, (ii) PVC with cryptographically enforced access control policies restricting the servers that may perform a given computation, and (iii) a reversed model of PVC which we call Verifiable Delegable Computation (VDC) where data is held remotely by servers. Entities may dynamically play the role of delegators or servers as required.
Original languageEnglish
Title of host publicationTopics in Cryptology - CT-RSA 2016
EditorsKazue Sako
Number of pages17
ISBN (Electronic)978-3-319-29485-8
ISBN (Print)978-3-319-29484-1
Publication statusPublished - 2 Feb 2016

Publication series

NameLecture Notes in Computer Science
PublisherSpringer International Publishing
ISSN (Print)0302-9743
This open access research output is licenced under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

ID: 26095092