Paper 2010/459
CCA2 Secure Certificateless Encryption Schemes Based on RSA
S. Sharmila Deva Selvi, S. Sree Vivek, and C. Pandu Rangan
Abstract
Certificateless cryptography, introduced by Al-Riyami and Paterson eliminates the key escrow problem inherent in identity based cryptosystem. In this paper, we present two novel and completely different RSA based adaptive chosen ciphertext secure (CCA2) certificateless encryption schemes. The new schemes are efficient when compared to other existing certificatless encryption schemes that are based on the costly bilinear pairing operation and are quite comparable with the certificateless encryption scheme based on multiplicative groups (without bilinear pairing) by Sun et al. \cite{SZB07} and the RSA based CPA secure certificateless encryption scheme by Lai et al. \cite{LDLK09}. We consider a slightly stronger security model than the ones considered in \cite{LDLK09} and \cite{SZB07} to prove the security of our schemes.
Metadata
- Available format(s)
-
PDF
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- Certificateless encryptionAdaptive Chosen Ciphertext Secure (CCA2)RSA AssumptionRandom Oracle model
- Contact author(s)
-
sharmioshin @ gmail com
ssreevivek @ gmail com - History
- 2010-08-31: received
- Short URL
- https://ia.cr/2010/459
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2010/459,
author = {S. Sharmila Deva Selvi and S. Sree Vivek and C. Pandu Rangan},
title = {{CCA2} Secure Certificateless Encryption Schemes Based on {RSA}},
howpublished = {Cryptology {ePrint} Archive, Paper 2010/459},
year = {2010},
url = {https://eprint.iacr.org/2010/459}
}
