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Title: Forgery Attacks on an ID-Based Partially Blind Signature Scheme
Authors: Tseng, Yuh-Min;Wu, Tsu-Yang;Wu, Jui-Di
Contributors: 數學系
Keywords: Security;Partially blind signature;Bilinear pairings;Identity-based
Date: 2008-08
Issue Date: 2012-07-03T03:45:05Z
Publisher: IJARCS
Abstract: A partially blind signature is a variant of the blind signature. The partially blind signature scheme allows a signer to sign a partially blind message that explicitly includes the pre-agreed information. In 2005, Chow et al. first proposed an ID-based partially blind signature scheme with bilinear pairings. ID-based public key systems with bilinear pairings defined on elliptic curves offer a flexible approach to achieve both simplifying the certificate management and reducing the computational cost. However, their scheme is time-consuming for requesters (or clients) with mobile devices. In 2007, Hu and Huang proposed an efficient ID-based partially blind signature scheme based on bilinear pairings. They claimed that the proposed scheme is provably secure under the random oracle model. However, this paper shows that the Hu-Huang scheme suffers from forgery attacks. Index Terms—Security, Partially blind signature, Bilinear pairings, Identity-based.
Relation: International Journal of Computer Science, 35(3): 301-304
Appears in Collections:[math] Periodical Articles

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