Analysis and Improvement of Timeliness of a Multi-Party Non-Repudiation Protocol

HAN Zhi-geng; LUO Jun-zhou

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Analysis and Improvement of Timeliness of a Multi-Party Non-Repudiation Protocol

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- Analysis and Improvement of Timeliness of a Multi-Party Non-Repudiation Protocol
- Acta Electronica Sinica Vol. 37, Issue 2, Pages: 377-381(2009)
- 作者机构：
  
  东南大学计算机科学与工程学院,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN91
- Published：2009
- 稿件说明：
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HAN Zhi-geng, LUO Jun-zhou. Analysis and Improvement of Timeliness of a Multi-Party Non-Repudiation Protocol[J]. Acta Electronica Sinica, 2009, 37(2): 377-381.
DOI：

HAN Zhi-geng, LUO Jun-zhou. Analysis and Improvement of Timeliness of a Multi-Party Non-Repudiation Protocol[J]. Acta Electronica Sinica, 2009, 37(2): 377-381. DOI：

摘要

时限性是实用的不可否认协议必须具备的一个基本性质.形式化分析典型的多方不可否认协议时发现其存在未公布的时限性缺陷.本文通过向协议消息中添加额外时间控制信息和改变协议交互步骤的办法对该缺陷进行了改进.

Abstract

Timeliness is a key security property of practical non-repudiation protocols.This paper analyzed an existing representative multi-party non-repudiation protocol using formal method and found that it lacks the support for timeliness.Then an improved protocol was proposed which fixes the flaw by both adding extra time limit information into protocol messages and modifying the sequence of protocol steps.

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