An Efficient and Practical Public Key Cryptosystem with CCA-Security on Standard Model |
| |
Authors: | Zhen Liu Xiaoyuan Yang Weidong Zhong Yiliang Han |
| |
Affiliation: | the Department of Network and Information Security Key Laboratory, Engineering University of the Armed Police Force, Xi'an 710086, China |
| |
Abstract: | Chosen Ciphertext Attack(CCA)security on the standard model is widely accepted as the standard security notion for the public key cryptosystem.The existing CCA-secure public key cryptosystems on the standard model are expensive in terms of efficiency and practicality.In this paper,an efficient and practical public key cryptosystem is presented over the group of signed quadratic residues.It is provably secure against CCA on the standard model.Furthermore,public verifiability for this scheme is also realized in the way that projects the verification privacy key into public key on trapdoor pretending.It will be useful to devise efficient CCA-secure threshold and proxy re-encryption schemes on the standard model. |
| |
Keywords: | public key cryptosystem standard model Chosen Ciphertext Attack (CCA)-security public verifiability |
本文献已被 CNKI 维普 万方数据 等数据库收录! |