Method and system for linking certificates to signed files
CA 2561335 C · Owner: Kyndryl, Inc. · Inventors: Incertis Carro, Fernando
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and systems for linking the certificate to the signed file to which it is associated is disclosed. According to the method and systems of the invention, the address or URL wherein the certificate is stored is encoded in the filename of the signed file so as to be transmitted jointly with the file. When receiving such a signed file, a first step consists in extracting and decoding the certificate address from the filename. Using the certificate address, the certificate can be accessed and checked before opening and authenticating the signed file. In a preferred embodiment the signature of a , signed file is based on the file content and on a private key while the …
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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 March 2, 2005 and granted March 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 2, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.