Efficient identity-based broadcast signcryption schemes

被引：18
|
作者：
Kim, Intae [1 ]
Hwang, Seong Oun [1 ]
机构：
[1] Hongik Univ, Dept Comp & Informat Commun Engn, Seoul, South Korea
来源：
SECURITY AND COMMUNICATION NETWORKS | 2014年 / 7卷 / 05期
基金：
新加坡国家研究基金会;
关键词：
cryptography; identity-based encryption; broadcast encryption; identity-based broadcast encryption; identity-based broadcast signcryption; CONSTANT-SIZE CIPHERTEXTS; MULTIPLE RECEIVERS; SIGNATURE SCHEMES; RANDOM ORACLES; PRIVATE KEYS; ENCRYPTION; SECURE;
D O I：
10.1002/sec.802
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Most of broadcast encryption schemes do not provide source authentication property. This allows an adversary to launch impersonating attacks. Therefore, broadcast encryption scheme without source authentication is not applicable in our real life as it is. In this paper, we propose two source-authenticated broadcast encryption schemes that achieve both confidentiality and authenticity simultaneously. Ciphertexts in both schemes are of constant size, independent of the size of the receiver set. The first scheme is particularly efficient in case of pre-computation, whereas the overall performance of the second scheme is better than that of Selvi et al.'s scheme. Copyright (c) 2013 John Wiley & Sons, Ltd.
引用
收藏
页码：914 / 925
页数：12
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