| 标准模型下可证安全的身份基认证密钥协商协议 |
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| 引用本文： | 王圣宝,曹珍富,董晓蕾. 标准模型下可证安全的身份基认证密钥协商协议[J]. 计算机学报, 2007, 30(10): 1842-1852 |
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| 作者姓名： | 王圣宝 曹珍富 董晓蕾 |
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| 作者单位： | 上海交通大学计算机科学与工程系,上海,200240;中国人民解放军炮兵学院计算中心,合肥,230031;上海交通大学计算机科学与工程系,上海,200240 |
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| 基金项目： | 国家高技术研究发展计划(863计划) , 国家自然科学基金 |
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| 摘 要： | 提出一个在标准模型下可证安全的双方身份基密钥协商协议.新协议的设计思想来源于Gentry的身份基加密方案.提出的新协议可工作于托管或者无托管两种模式.在标准模型下(即不利用随机预言假设),文中给出了该协议的安全性证明.新提出的协议与目前现有仅在随机预言模型中证明安全的协议相比,在计算和通信效率方面相当.
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| 关 键 词： | 身份基密码学 认证密钥协商 双线性配对 标准模型 |
| 修稿时间： | 2007-05-09 |
Provably Secure Identity-Based Authenticated Key Agreement Protocols in the Standard Model |
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| WANG Sheng-Bao,CAO Zhen-Fu,DONG Xiao-Lei. Provably Secure Identity-Based Authenticated Key Agreement Protocols in the Standard Model[J]. Chinese Journal of Computers, 2007, 30(10): 1842-1852 |
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| Authors: | WANG Sheng-Bao CAO Zhen-Fu DONG Xiao-Lei |
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| Affiliation: | 1.Department of Computer Science and Engineering, Shanghai Jiaotong University, Shanghai 200240; 2.Computing Center, Artillery Academy of PLA of China, Hefei 230031 |
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| Abstract: | This paper presents an identity-based key agreement protocols that are provably secure without random oracles(namely,in the standard model).It is inspired by a new identity-based encryption scheme first proposed by Gentry.This paper details how this key agreement can be used in either escrowed or escrowless mode.All the proposed protocols are compared performance(with respect to computational and communication efficiencies) to all known protocols that are only proven secure in the random oracle model. |
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| Keywords: | identity-based cryptography authenticated key agreement bilinear pairings standard model |
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