Context Authentication Using Constrained Channels

Kindberg, Tim ; Zhang, Kan

HP Development Company

关键词: context-aware computing;    location-based computing;    security;    authentication;   

RP-ID  :  HPL-2001-84

学科分类：计算机科学（综合）

美国|英语

来源: HP Labs

【 摘 要 】

This paper presents a paradigm shift from conventional authentication--of a principal's identity--to authentication of parameters that characterise a principal's context. Location, in particular, is a highly significant contextual parameter. It is one that features in what are known as mobile, ubiquitous, pervasive and nomadic computing systems. We present a model of context authentication based on the characteristics of communication channels. As an example, we present protocols for location authentication that are based on physical channel characteristics. We conclude with a summary and discussion of the work. 8 Pages