Paper 2007/173

Provable Secure Generalized Signcryption

Xu An Wang, 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)
PDF
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
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2007/173,
      author = {Xu An Wang and Xiaoyuan Yang and Yiliang Han},
      title = {Provable Secure Generalized Signcryption},
      howpublished = {Cryptology {ePrint} Archive, Paper 2007/173},
      year = {2007},
      url = {https://eprint.iacr.org/2007/173}
}
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