Improving Negotiation Efficiency and Success in Automated Trust Negotiation

2007 Third International IEEE Conference on Signal-Image Technologies and Internet-Based System Pub Date : 2007-12-16 DOI:10.1109/SITIS.2007.27

Hongwei Lu, Bailing Liu

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引用次数: 2

Abstract

Automated trust negotiation (ATN) is an approach that establishes mutual trust between strangers by gradually requesting and disclosing digitally signed credentials. Previous work on ATN mainly focuses on how to protect sensitive information about negotiators. However, the efficiency and success, which are primary goals of ATN, are not sufficiently considered. In this paper, we extend existing policy languages by adding two basic and expressive operators to them, which is one key to improve negotiation efficiency. Several problems that can not be effectively solved using traditional policy languages are presented, they can be effectively and efficiently settled by the extended policy languages, and several examples are also given. Furthermore, we develop an associated protocol taking advantages of oblivious signature based envelope (OSBE) and two new concepts explored in this paper. We also prove that the extended policy languages and the associated protocol together greatly improve negotiation efficiency and success under some conditions without sensitive information leakage in ATN.

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提高自动信任协商的协商效率和成功率

自动信任协商(ATN)是一种通过逐步请求和披露数字签名凭证来建立陌生人之间相互信任的方法。以往关于ATN的研究主要集中在如何保护谈判者的敏感信息。然而，作为ATN主要目标的效率和成功并没有得到充分的考虑。本文对已有的策略语言进行了扩展，增加了两个基本的表达算子，这是提高协商效率的关键之一。提出了传统政策语言不能有效解决的几个问题，通过扩展政策语言可以有效地解决这些问题，并给出了几个实例。此外，我们利用基于遗忘签名的信封(OSBE)和本文探讨的两个新概念开发了一个相关协议。我们还证明了扩展策略语言和关联协议在一定条件下，在不泄漏敏感信息的情况下，极大地提高了ATN的协商效率和成功率。

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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2007 Third International IEEE Conference on Signal-Image Technologies and Internet-Based System

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