Use and generation of a session key in a secure socket layer connection
CA 2446304 C · Owner: Coulier, Frank · Inventors: Coulier, Frank
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention describes a method (200) and system for verifying the link between a public key and a server's identity as claimed in the server's certificate without relying on the trustworthiness of the root certificate of the server's certificate chain. The system establishes a secure socket layer type connection (201) between a client and a server wherein the server , transmits information including the server's public key to the client while establishing the connection. Next, a first information is sent from the client to the server (202). The client and the server create an identical authentication key using a shared secret known to the server and the client (203 and 204). Next, …
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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 April 30, 2002 and granted March 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.