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Efficient hierarchical identity based signature scheme in the standard model

โœ Scribed by Yanli Ren; Dawu Gu


Book ID
107531341
Publisher
Wuhan University
Year
2008
Tongue
English
Weight
289 KB
Volume
13
Category
Article
ISSN
1007-1202

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An improved semantically-secure identity
โœ Zhengping Jin; Qiaoyan Wen; Hongzhen Du ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 203 KB

Recently, Yu et al. proposed the first identity-based signcryption scheme without random oracles and proved it was semantically secure in the standard model. However, in this paper we find that their scheme actually does not reach the semantic security as they claimed. To make up for this defect, we