Paper 2010/346
Efficient Generalized Signcryption Schemes
Prashant Kushwah and Sunder Lal
Abstract
Generalized signcryption is a new cryptographic primitive which works as a signcryption scheme, a signature scheme and an encryption scheme as per need. Recently Ji et al. proposed a security model for certificateless generalized signcryption scheme and also proposed a scheme which they claim is secure under the proposed security model. In this paper we show that Ji et al. scheme is not existentially unforgeable against Type-I adversary and propose a simplified certificateless generalized signcryption. We also present an efficient identity based generalized signcryption scheme.
Metadata
- Available format(s)
-
PDF
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- signcryptiongeneralized signcryptionidentity based cryptographycertificateless cryptography
- Contact author(s)
-
pra ibs @ gmail com
sunder_lal2 @ rediffmail com - History
- 2010-06-18: received
- Short URL
- https://ia.cr/2010/346
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2010/346,
author = {Prashant Kushwah and Sunder Lal},
title = {Efficient Generalized Signcryption Schemes},
howpublished = {Cryptology {ePrint} Archive, Paper 2010/346},
year = {2010},
url = {https://eprint.iacr.org/2010/346}
}
