Linking public key of device to information during manufacture
CA 2418050 C · Owner: First Data Corporation · Inventors: Wheeler, Anne M.; Wheeler, Lynn Henry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method in which information pertaining to a device (104) generating digital signatures (122) is reliably identified includes manufacturing (102) devices in a secure environment (114) and for each device (104) before it is released from the secure environment: creating a public-private key pair (116 118); , storing the private key (116) within the device (104) for utilization in generating a digital signature (122) for a message (122); and linking the public key (118) to a Security Profile (120) of the device (104). The devices (104) then are released from the secure environment (114) and a digital signature (122) is received from somewhere (108) in the world (106). The message …
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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 August 6, 2001 and granted May 20, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 2023.
- 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.