NDLI: A provably secure identity-based signature scheme without PKG in the standard model

Content Provider	IEEE Xplore Digital Library
Author	Jianhong Zhang Xue Liu
Copyright Year	2010
Description	Author affiliation: College of Sciences, North China University of Technology, Beijing, China (Jianhong Zhang; Xue Liu)
Abstract	Compared with the traditional public key crypto-system, identity-based cryptosystem can simplify the key management procedure from the view point of the efficiency and convenience. But a trust PKG must been required in the ID-based cryptosystem and is unconditionally trusted. At present, Most of identity-based signature schemes are only proven to be secure in the random oracle model, but the security in random oracle model doesn't imply the security in the real world. Since the hash function is considered as a random generator. In this paper, we propose an efficient and provably secure identity-based signature scheme without trusted third party. Our scheme is existentially unforgeable against adaptive chosen message attacks under the computational Diffie-Hellman assumption in the standard model. Compared with the known strong identity-based scheme in the standard model, our scheme enjoys shorter signature size and less computation in terms of signing and verifying.
Starting Page	4875
Ending Page	4878
File Size	297418
Page Count	4
File Format	PDF
ISBN	9781424476169
e-ISBN	9781424476183
DOI	10.1109/ICISE.2010.5691305
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-04
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	ID-based signature Identity-based encryption ID-based cryptgraphy Computational modeling Adaptation model Standard model Elliptic curve cryptography The CDH problem Security analysis
Content Type	Text
Resource Type	Article

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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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