By Topic

Certificateless encryption scheme secure in standard model

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
2 Author(s)
Guoyan Zhang ; School of Computer Science and Technologv, Shandong University, Jinan 250100., China; Key Laboratory of Cryptologic Technology and Information Security of the Ministry of Education, Shandong University, Jinan 250100, China ; Xiaoyun Wang

The scheme introduced by Hwang and Liu in 2008 is shown to be insecure against the key replacement attack. A more practical attack model is introduced, and according to this model, an efficient certificateless encryption scheme is presented which is IND-CCA secure against both Type I and Type II attackers without random oracle. This encryption scheme can defend against the malicious key generation center attack, and can reach Girault's trusted level 3 as in traditional public key infrastructure-based cryptography. This certificateless encryption scheme has a shorter public key than other schemes in the standard model.

Published in:

Tsinghua Science and Technology  (Volume:14 ,  Issue: 4 )