System for controlling group access to objects using group acces

Details System for controlling group access to objects using group acces System for controlling group access to objects using group acces

1991-12-16

1994-01-04

Lee, Thomas C.

Boots, shoes, and leggings

395600, 3642469, 3642612, 3642864, 3649694, 364DIG1, 34082531, 380 4, G06F 1214

Patent

active

052769011

ABSTRACT:
A method and system for controlling access by groups of users to multiple objects stored within a data processing system implemented library wherein each object has an access list associated therewith explicitly listing individual users permitted access to that object. A group identification is established which encompasses all users within the data processing system, a selected subset of users with the data processing system, or a single selected user and his or her designated affinity users or proxies. The group identification is then listed within an associated access list for a particular object and upon an attempted access of the particular object by a user not listed explicitly within the associated access list, a determination is made as to whether or not that user is listed within a group identification which is permitted access. In one embodiment of the present invention selected objects and users each have associated therewith a clearance level and access to a selected object by a particular user listed within a group identification may be denied if that particular user's clearance level does not meet or exceed the clearance level of the selected object.

REFERENCES:
patent: 4104721 (1978-08-01), Marstein et al.
patent: 5014345 (1991-05-01), Comroe et al.
C. J. Date, An Introduction to Database Systems, vol. II, 1983, pp. 158-159.
Shien et al., "An N-Grid Model for Group Authorization", Proceedings of the Sixth Annual Computer Security Applications Conference, Dec. 3-7, 1990, pp. 384-392.
Wilms et al., "A Database Authorization Mechanism Supporting Individual and Group Authorization", Second International Seminar on Distributed Data Sharing Systems, 1982, pp. 273-292.

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