Generic Security Service Application Programming Interface GSS-API <security, programming> (GSS-API) An application level interface ({API}) to system security services. It provides a generic interface to services which may be provided by a variety of different security mechanisms. {Vanilla} GSS-API supports {security contexts} between two entities (known as "principals"). GSS-API is a draft internet standard which is being developed in the {Common Authentication Technology Working Group} (cat-wg) of the {Internet Engineering Task Force} (IETF). Initial specifications for GSS-API appeared in {RFC 1508} and {RFC 1509}. Subsequent revisions appeared in several draft standards documents. (http://dstc.qut.edu.au/~barton/work/project.html). (1996-05-19)