The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2007
Filed:
May. 10, 1999
Yassir K. Elley, Cambridge, MA (US);
Anne H. Anderson, Acton, MA (US);
Stephen R. Hanna, Bedford, MA (US);
Sean J. Mullan, Watertown, MA (US);
Radia J. Perlman, Acton, MA (US);
Yassir K. Elley, Cambridge, MA (US);
Anne H. Anderson, Acton, MA (US);
Stephen R. Hanna, Bedford, MA (US);
Sean J. Mullan, Watertown, MA (US);
Radia J. Perlman, Acton, MA (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
In accordance with the invention, a presenter of credentials presents to a recipient of credentials one or more chains of group credentials to prove entity membership or non-membership in a nested group in a computer network. The ability to present a chain of credentials is particularly important when a client is attempting the prove membership or non-membership in a nested group and one or more of the group servers in the family tree are off-line. A chain of group credentials includes two or more proofs of group membership and/or proofs of group non-membership Furthermore, the proofs of group membership may include one or more group membership certificates and/or one or more group membership lists; and proofs of group non-membership may include one or more group non-membership certificates and/or one or more group membership lists.