NL repository
menu
검색
Library
Browse
Communities & Collections
By Date
Authors
Titles
Subject
My Repository
My Account
Receive email updates
Edit Profile
DSpace at EWHA
연구기관
수리과학연구소
Journal papers
View : 685 Download: 0
Key exposure free chameleon hash schemes based on discrete logarithm problem
Title
Key exposure free chameleon hash schemes based on discrete logarithm problem
Authors
Lim S.
;
Lee J.
;
An Y.
Ewha Authors
임선간
SCOPUS Author ID
임선간
Issue Date
2013
Journal Title
Security and Communication Networks
ISSN
1939-0122
Citation
Security and Communication Networks vol. 6, no. 7, pp. 812 - 817
Indexed
SCIE; SCOPUS
Document Type
Article
Abstract
A chameleon hash scheme is a trapdoor collision-resistant hash scheme, and it provides many interesting features in signature schemes with hash-and-sign construction. In this paper, we introduce the notion of key exposure threshold τ for a chameleon hash scheme for which a key exposure free chameleon hash scheme can be understood as the case with τ=∞. We propose chameleon hash schemesCHτ with the key exposure threshold τ based on discrete logarithm problem (DLP). For τ<∞, the proposed scheme is noninteractive and key exposure free as long as k ephemeral trapdoors are disclosed for k<τ. The proposed schemeCH∞ is a key exposure free chameleon hash scheme based on DLP, and it requires a label directory that can be managed by a third party. This improves the only known efficient key exposure free chameleon hash scheme based on DLP, which requires one interaction with the trapdoor holder. © 2012 John Wiley & Sons, Ltd..
DOI
10.1002/sec.612
Appears in Collections:
연구기관
>
수리과학연구소
>
Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML
Show full item record
Find@EWHA
트윗하기
BROWSE
Communities & Collections
By Date
Authors
Titles
Subject