CDSA/HRS (Common Data Security Architecture/Human Recognition Service)
   is a CSSM (Common Security Services Manager) EMM (Elective Module
   Manager).  It is intended to provide a high-level generic
   authentication model, suited to use for any form of human
   authentication.  Particular emphasis has been made in the design on
   its suitability for authentication using biometric technology.

   It covers the basic functions of Enrollment, Verification, and
   Identification, and includes a database interface to allow a
   biometric service provider (BSP) to manage the identification
   population for optimum performance.

   It also provides primitives which allow the application to manage
   the capture of samples on a client, and the Enrollment,
   Verification, and Identification, on a server.

   The HRS is designed for use by both application developers and
   biometric technology developers.  To make the integration of the
   technology as straightforward and simple as possible (thus
   enhancing its commercial viability), the approach taken is to
   hide or encapsulate to the extent possible the complexities of
   the biometric technology.  This approach also serves to extend
   the generality of the interface to address a larger set of
   potential biometric technologies and applications.