摘要： 在网格安全标准中，实体间的跨域身份认证采用基于证书的公钥基础设施认证框架，证书的管理过于复杂，限制了网格规模的扩大。针对上述问题，在分析网格安全需求的基础上，引入基于身份的密码体制，提出一种跨域签密方案，以解决使用不同系统参数的虚拟组织间相互认证的问题，并对其安全性和性能进行分析。

关键词: 网格, 基于身份的密码体制, 签密, 认证

Abstract: In Grid Security Infrastructure(GSI), cross-domain authentication between entities adopts the traditional certificate-based Public Key Infrastructure(PKI) which limits grid scale since the management of certificates is too complicated. By analyzing the security demands, this paper introduces Identity-Based Cryptography(IBC) to grid and proposes a cross-domain signcryption scheme to solve the problem brought by authentication between Virtual Organizations(VO) with different system parameters. Its security and performance are analyzed.

Key words: grid, Identity-Based Cryptography(IBC), signcryption, authentication

中图分类号: 

• TP393.08