计算机应用与软件2013，Vol.30Issue(6)：305-306,333,3.DOI:10.3969/j.issn.1000-386x.2013.06.081
一种改进的无可信中心的自认证多代理签密方案
AN IMPROVED SELF-CERTIFIED MULTI-PROXY SIGNCRYPTION SCHEME WITHOUT TRUSTWORTHY SYSTEM AUTHORITY
吴凡 1徐丽丽2
作者信息
- 1. 华侨大学厦门工学院计算机科学与工程系 福建厦门361021
- 2. 厦门大学信息科学与技术学院 福建厦门361005
- 折叠
摘要
Abstract
By making the attacks on a self-certified multi-proxy signcryption scheme without trustworthy system authority,we point out that in original scheme,the unforgeability characteristic can not be preserved since the insider attackers inside the signcryption group can forge the new legal message with their own information.And we then propose a new scheme which is inspired by the intractability of discrete logarithm in finite field,that is,to insert the sender' s private data into the encrypted session.Apart from some security characteristics in the old scheme,our analysis shows that the new scheme also has the advantages of unforgeability,prevention of misuse and non-repudiation,etc.关键词
自认证/多代理签密/有限域上离散对数问题Key words
Self-certified / Multi-proxy signcryption / Discrete logarithm in finite field分类
信息技术与安全科学引用本文复制引用
吴凡,徐丽丽..一种改进的无可信中心的自认证多代理签密方案[J].计算机应用与软件,2013,30(6):305-306,333,3.
