On the use of key assignment schemes in authentication protocols

Abstract

In this paper, we explore the use of Key Assignment Schemes in entity authentication protocols where authentication requires the claiment to demonstrate knowledge of a derivable key. By controlling the distribution of such keys, restrictions may be efficiently placed upon the circumstances under which an entity may be authenticated and the services to which they may gain access. We explore how standardized protocols may be extended to authenticate entities as members of a group associated to a particular security label, whilst protecting the long-term secrets in the system. We also see that such constructions may allow for authentication whilst preserving anonymity. © 2013 Springer-Verlag.