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Adaptively secure hierarchical identity-based signature in the standard model

โœ Scribed by Le-you ZHANG; Yu-pu HU; Qing WU

Book ID
108484841
Publisher
Chinese Electronic Periodical Services
Year
2010
Tongue
English
Weight
286 KB
Volume
17
Category
Article
ISSN
1005-8885

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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