A new efficient optimistic fair exchange protocol without random oracles

Optimistic fair exchange (OFE) is a kind of protocols to solve the problem of fair exchange between two parties. Most of the previous work on this topic are provably secure in the random oracle model. In this work, we propose a new construction of OFE from another cryptographic primitive, called tim...

Full description

Saved in:
Bibliographic Details
Main Authors: HUANG, Qiong, YANG, Guomin, WONG, Duncan S., SUSILO, Willy
Format: text
Language:English
Published: Institutional Knowledge at Singapore Management University 2012
Subjects:
Online Access:https://ink.library.smu.edu.sg/sis_research/7351
https://ink.library.smu.edu.sg/context/sis_research/article/8354/viewcontent/s10207_011_0152_3.pdf
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Singapore Management University
Language: English
id sg-smu-ink.sis_research-8354
record_format dspace
spelling sg-smu-ink.sis_research-83542022-10-06T02:30:50Z A new efficient optimistic fair exchange protocol without random oracles HUANG, Qiong YANG, Guomin WONG, Duncan S. SUSILO, Willy Optimistic fair exchange (OFE) is a kind of protocols to solve the problem of fair exchange between two parties. Most of the previous work on this topic are provably secure in the random oracle model. In this work, we propose a new construction of OFE from another cryptographic primitive, called time capsule signature. The construction is efficient and brings almost no overhead other than the primitive itself. The security of our new construction is based on that of the underlying primitive without relying on the random oracle heuristic. Applying our generic construction to the time capsule signature scheme recently proposed by Libert and Quisquater, we obtain a new concrete and efficient OFE construction secure based on Computational Diffie–Hellman assumption in the standard model 2012-01-01T08:00:00Z text application/pdf https://ink.library.smu.edu.sg/sis_research/7351 info:doi/10.1007/s10207-011-0152-3 https://ink.library.smu.edu.sg/context/sis_research/article/8354/viewcontent/s10207_011_0152_3.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University CDH assumption Optimistic fair exchange Standard model Time capsule signature Information Security
institution Singapore Management University
building SMU Libraries
continent Asia
country Singapore
Singapore
content_provider SMU Libraries
collection InK@SMU
language English
topic CDH assumption
Optimistic fair exchange
Standard model
Time capsule signature
Information Security
spellingShingle CDH assumption
Optimistic fair exchange
Standard model
Time capsule signature
Information Security
HUANG, Qiong
YANG, Guomin
WONG, Duncan S.
SUSILO, Willy
A new efficient optimistic fair exchange protocol without random oracles
description Optimistic fair exchange (OFE) is a kind of protocols to solve the problem of fair exchange between two parties. Most of the previous work on this topic are provably secure in the random oracle model. In this work, we propose a new construction of OFE from another cryptographic primitive, called time capsule signature. The construction is efficient and brings almost no overhead other than the primitive itself. The security of our new construction is based on that of the underlying primitive without relying on the random oracle heuristic. Applying our generic construction to the time capsule signature scheme recently proposed by Libert and Quisquater, we obtain a new concrete and efficient OFE construction secure based on Computational Diffie–Hellman assumption in the standard model
format text
author HUANG, Qiong
YANG, Guomin
WONG, Duncan S.
SUSILO, Willy
author_facet HUANG, Qiong
YANG, Guomin
WONG, Duncan S.
SUSILO, Willy
author_sort HUANG, Qiong
title A new efficient optimistic fair exchange protocol without random oracles
title_short A new efficient optimistic fair exchange protocol without random oracles
title_full A new efficient optimistic fair exchange protocol without random oracles
title_fullStr A new efficient optimistic fair exchange protocol without random oracles
title_full_unstemmed A new efficient optimistic fair exchange protocol without random oracles
title_sort new efficient optimistic fair exchange protocol without random oracles
publisher Institutional Knowledge at Singapore Management University
publishDate 2012
url https://ink.library.smu.edu.sg/sis_research/7351
https://ink.library.smu.edu.sg/context/sis_research/article/8354/viewcontent/s10207_011_0152_3.pdf
_version_ 1770576317581885440