A Subjective Metric of Authentication
نویسنده
چکیده
Determining the authenticity of public keys in large-scale open networks can not be based on certiicates alone, but must also include the binding between the key used for certiication and it's owner, as well as the trust relationships between individual agents. This paper describes a method for computing authenticity measures based on certiicates, on key binding, and on trust relationships. Two essential elements of the method are the opinion model which is a radically new way of representing trust, and subjective logic which consists of a set of logical operators for combining opinions. We show that our method for computing authenticity measures can be applied to both anarchic and hierarchic authentication networks.
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