摘要
为确保协议的安全性,提出了一种标准模型下可证安全的口令认证密钥交换协议。利用无证书密钥封装机制来传递口令等用户身份验证信息;基于DDH(decision Diffie-Hellman)假设,在标准模型下证明了新协议的安全性。结果显示,该协议是前向安全的,可实现用户间的双向认证,能够有效地抵抗多种攻击。
To guarantee the security of exchange protocol,a novel password-authenticated key exchange protocol without random oracle model was introduced.Clients’ identity information was delivered by the certificateless key encapsulation mechanism.The security of the proposed protocol was proved in the standard model based on decision Diffie-Hellman(DDH) assumption.Security analysis showed that the provided protocol was forward security and achieved mutual authentication,which could resist multiple attacks.
出处
《山东大学学报(工学版)》
CAS
北大核心
2013年第2期11-17,共7页
Journal of Shandong University(Engineering Science)
基金
信息安全国家重点实验室开放基金资助项目
江苏省2011年度普通高校研究生科研创新计划资助项目(CXZZ11-0295)
关键词
无证书密钥封装
标准模型
交换协议
双向认证
口令认证
certificateless key encapsulation
standard model
exchange protocol
mutual authentication
password authentication