计算机应用与软件Issue(10)：324-327,333,5.DOI:10.3969/j.issn.1000-386x.2015.10.077
标准模型下的群代理签名方案分析与改进
ANALYSIS AND IMPROVEMENT OF GROUP PROXY SIGNATURE SCHEME IN STANDARD MODEL
陈明1
作者信息
- 1. 宜春学院数学与计算机科学学院 江西 宜春 336000
- 折叠
摘要
Abstract
Since the group proxy signature scheme in standard model has the flaw of the adversary forging proxy signature authorisation in polynomial-time,we proposed a new scheme.On the basis of the original scheme,the improved scheme adopts the transformed Paterson sig-nature scheme to improve group proxy signature authorisation algorithm.Under Paterson's standard security model,the improved group proxy signature authorisation algorithm is deduced as to solve the computational Diffie-Hellman problem,and has the provable security.Analysis shows that the improved scheme achieves the unforgeability of group proxy signature without additional computational overheads.关键词
基于身份密码学/群代理签名/双线性对/计算 DH 问题/标准模型Key words
Identity-based cryptography/Group proxy signature Bilinear pairing/Computational/Diffie Hellman problem/Standard model分类
信息技术与安全科学引用本文复制引用
陈明..标准模型下的群代理签名方案分析与改进[J].计算机应用与软件,2015,(10):324-327,333,5.
