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Improved certificate-based encryption in the standard model

✍ Scribed by David Galindo; Paz Morillo; Carla Ràfols


Book ID
108193865
Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
234 KB
Volume
81
Category
Article
ISSN
0164-1212

No coin nor oath required. For personal study only.


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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