EFFICIENT ONLINE/OFFLINE SIGNCRYPTION SCHEME

被引：2
|
作者：
Wei, Baodian [1 ]
Zhang, Fangguo
Chen, Xiaofeng
机构：
[1] Sun Yat Sen Univ, Sch Informat Sci & Technol, Guangzhou 510275, Guangdong, Peoples R China
来源：
INTELLIGENT AUTOMATION AND SOFT COMPUTING | 2010年 / 16卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Signcryption; Online/offline scheme; Bilinear maps; k+1 square roots assumption; RANDOM ORACLES; CRYPTOGRAPHY; ENCRYPTION;
D O I：
10.1080/10798587.2010.10643092
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we propose a new signcryption scheme and its online/offline version from pairings. Based on the assumption of k+1 square roots, the scheme is proven, without random oracles, to be secure against the existential forgery under an adaptive chosen-message attack. It is also proven that its IND-CPA security also implies its IND-CCA2 security. A comparison is made with existing schemes from the viewpoint of computational cost and the size of ciphertexts.
引用
收藏
页码：449 / 459
页数：11
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