基于密码的三方密钥交换混合协议

2009 International Conference on Networks Security, Wireless Communications and Trusted Computing Pub Date : 2009-04-25 DOI:10.1109/NSWCTC.2009.278

He Xinzheng, Ru Bei, Fei Jin-long, Xu Baocheng

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引用次数: 0

摘要

模块化设计是现代密码学中处理复杂任务的常用方法。这种方法的关键在于设计一个安全的混合协议。本文研究了UC框架下三方环境下基于密码的密钥交换，并设计了一种UC安全实现这一任务的混合协议。接下来，我们将任务划分为两个子任务:三方密钥分发和基于密码的两方密钥交换，并提出了相关的两个理想功能:F3pKD、FpwKE。最后，我们提出了一个(F3pKD, FpwKE)混合协议，用于基于密码的三方密钥交换，该协议被证明在非自适应方损坏方面是uc安全的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Hybrid Protocol for Password-Based Key Exchange in Three-party Setting

Modular design is a common approach for dealing with complex tasks in modern cryptology. The critical of this approach is to design a secure hybrid protocol. In this paper, we study password-based key exchange in the three-party setting within the UC framework and design a hybrid protocol that UC-securely realizes such task. Next we partition the task into two sub-tasks, three-party key distribution and password-based two-party key exchange, and propose relevant two ideal functionalities, F3pKD, FpwKE. Finally, we present a (F3pKD, FpwKE) -hybrid protocol for password-based three-party key exchange that is proved to be UC-secure with respect to non-adaptive party corruption.

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2009 International Conference on Networks Security, Wireless Communications and Trusted Computing

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