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Paper 2007/173
Provable Secure Generalized Signcryption
Xu An Wang and Xiaoyuan Yang and Yiliang Han
Abstract
Generalized signcryption which proposed by Han is a new cryptographic primitive which can work as an encryption scheme, a signature scheme or a signcryption scheme[5]. However,the security proof in their paper is not very formal.our contribution are as following:First we give security notions for this new primitive.Secnond,we give an attack to [4]which is the first vision of [5] and propose an improved generalized signcryption scheme. Third, we give new very formal proofs for this new scheme.
Metadata
- Available format(s)
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- foundations
- Contact author(s)
- wangxahq @ yahoo com cn
- History
- 2008-05-21: last of 2 revisions
- 2007-05-12: received
- See all versions
- Short URL
- https://ia.cr/2007/173
- License
-
CC BY