## CryptoDB

### Paper: Efficient Generalized Signcryption Schemes

Authors: Prashant Kushwah Sunder Lal URL: http://eprint.iacr.org/2010/346 Search ePrint Search Google 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.
##### BibTeX
@misc{eprint-2010-23247,
title={Efficient Generalized Signcryption Schemes},
booktitle={IACR Eprint archive},
keywords={public-key cryptography / signcryption, generalized signcryption, identity based cryptography, certificateless cryptography},
url={http://eprint.iacr.org/2010/346},
note={ pra.ibs@gmail.com, sunder_lal2@rediffmail.com 14776 received 16 Jun 2010},
author={Prashant Kushwah and Sunder Lal},
year=2010
}