Abstract: DYNIDENT is a program installed with privilege that lets selected unprivileged users grant/revoke selected rights identifiers. This lets the proper 'data owners' (e.g. project leaders) dynamically change access to files without bothering the system manager. Unlike AUTHORIZE, DYNIDENT keeps track of time/date for when an identifier was granted to a particular user, and also records which user used DYNIDENT to grant the identifier. Users allowed to 'control' identifiers through DYNIDENT can also list grants already in effect, which identifiers they are allowed to control, other users that can control a given identifier, etc. The system manager must maintain a text file which defines who can control which identifiers with DYNIDENT. The concept of 'controller of a given identifier' is added to the existing VMS concepts of 'identifier holder', 'identifier' and 'access control list'.