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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:

28

期数:

2018年07期

页码:

108-112

栏目:

安全与防范

出版日期:

2018-07-10

文章信息/Info

Title:

An Efficient Identity-based Multi-signcryption Scheme in tandard Model

文章编号:

1673-629X(2018)07-0108-05

作者:

吴振国; 祁正华; 王翔

南京邮电大学 计算机学院,江苏 南京 210003

Author(s):

WU Zhen-guo; QI Zheng-hua; WANG Xiang

School of Computer Science,Nanjing University of Posts and Telecommunications,Nanjing 210003,China

关键词:

基于身份; 多签密; 标准模型; 双线性对

Keywords:

identity-based; multi- signcryption; standard model; bilinear pairing

分类号:

TP301

DOI:

10.3969/ j. issn.1673-629X.2018.07.023

文献标志码:

A

摘要:

签名和加密一直是信息安全方面研究的热点,相比较以往两者组合使用的方法,签密机制的出现极大地降低了其计算量和通信开销。 签密作为一种新的密码学技术,是指在一个逻辑步骤内同时完成加密和签名。 基于身份的签密方案是很多密码学的基础,近年来各种基于身份的签密方案相继提出。 为解决现有基于身份的多签密方案效率不高、计算量大的问题,利用椭圆曲线上的双线性对,将标准模型下基于身份的加密算法和多发送者的签名算法相结合,建立基于身份的多接受者签密方案构架和安全概念,形成了安全、高效的多签密方案。 结果表明,该方案降低了计算规模,具有高效性。

Abstract:

 Signature and encryption have always been the focus of information security. Compared with the their combinatorial methods in the past,the signcryption mechanism greatly reduces the computational costs and communication overheads. Signcryption,as a new cryptographic technique,completes both the functions of signature and encryption in a logical single step. The identity-based signcryption is the groundwork of many cryptography. In recent years,various identity-based signcryption schemes have been proposed. In order to solve the problem of inefficiency and huge calculation of current identity-based multi-signcryption schemes,we combine identity-based encryption algorithm and multi-receiver signature algorithm with bilinear pairing on curves to establish the ID-based signcryption scheme framework for multiple receivers and security concept,and form a secure and efficient scheme of multi-signcryption. The result shows that the new scheme reduces the calculating scale with high efficiency.

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更新日期/Last Update: 2018-08-29