Access control using attributes contained within public key certificates
CA 2339946 A1 · Owner: Haverty, Rand · Inventors: Haverty, Rand
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In Public Key Infrastructure ("PKI") applications a key pair (public key and , private key) is used to provide strong authentication and encryption services. The key pair is associated with the user by the use of a "certificate," which contains the user's public key as well as attributes associated with that user. This invention relates to the use of these attributes to control the access to a protected resource given to authenticated users. The attributes within a user's public key certificate are filtered by an attribute filter referenced by the proxy definition in order to control access to a protected resource. Further limitation of access to a protected resource is accomplished …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 30, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2021.
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Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.