NDLI: PriVeto: a fully private two-round veto protocol

Content Provider	IET Digital Library
Author	Bag, Samiran Azad, Muhammad Ajmal Hao, Feng
Abstract	In 2006, Hao and Zieliński presented a two-round veto protocol named anonymous veto network (AV-net), which is exceptionally efficient in terms of the number of rounds, computation and bandwidth usage. However, AV-net has two generic issues: (i) a participant who has submitted a veto can find out whether she is the only one who vetoed; (ii) the last participant who submits her input can pre-compute the Boolean-OR result before submission, and may amend her input based on that knowledge. These two issues generally apply to any multi-round veto protocol where participants commit their input in the last round. In this study, the authors propose a novel solution to address both issues within two rounds, which are the best possible round efficiency for a veto protocol. Their new private veto protocol, called PriVeto, has similar system complexities to AV-net, but it binds participants to their inputs in the very first round, eliminating the possibility of runtime changes to any of the inputs. At the end of the protocol, participants are strictly limited to learning nothing more than the output of the Boolean-OR function and their own inputs.
Starting Page	311
Ending Page	320
Page Count	10
ISSN	17518709
Volume Number	13
e-ISSN	17518717
Issue Number	Issue 4, Jul (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-ifs/13/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-ifs.2018.5115
Journal	IET Information Security
Publisher Date	2018-12-04
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Anonymous Veto Network AV-net Boolean Function Cryptographic Protocols Cryptography Data Privacy Data Security Private Veto Protocol PriVeto Protocol Two-round Veto Protocol
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Information Systems Software

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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