NDLI: On the security of some Multi-PKG/multi-recipient signcryption schemes

Content Provider	IEEE Xplore Digital Library
Author	Jianhong Zhang Jiancheng Zou
Copyright Year	2009
Description	Author affiliation: College of Sciences, North China University of Technology, Beijing 100144, China (Jianhong Zhang; Jiancheng Zou)
Abstract	Signcryption is an asymmetric cryptographic method that provides simultaneously both message confidentiality and unforgeability at a low computational and communication overhead. Indistinguishability and unforgeability are two primitive properties of a secure signcryption. Recently, to satisfy the security requirements of Ad hoc networks, Li et.al proposed two Multi-PKG ID-based signcryption schemes in ANCS2007 and Inscrypt2008, respectively. To satisfy the security requirements of multi-user setting, Li et.al also proposed a multirecipient signcryption scheme . In this work, we analyze the security of three signcryption schemes and show that the two Multi-PKG ID-based signcryption schemes are insecure against chosen ciphertext attacks and the multi-recipient signcryption scheme is insecure against chosen message attacks. And we discuss the reason of producing such attacks and the corresponding revised methods for each scheme.
Starting Page	497
Ending Page	500
File Size	215647
Page Count	4
File Format	PDF
ISBN	9781424438839
DOI	10.1109/ICASID.2009.5276986
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	security analysis Identity-based encryption multi-recipient signcryypion Educational institutions Routing Ad hoc networks Security Mobile ad hoc networks Network topology multi-PKG signcryption Public key Public key cryptography Computational efficiency unforgeability
Content Type	Text
Resource Type	Article

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