Lightweight authentication of information
CA 2478153 A1 · Owner: Soppera, Andrea · Inventors: Soppera, Andrea
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An authentication method for linked data is provided which does away with the , conventional requirement for secure authentication of every item of data using public key encryption or Message Access Codes. A subscriber to an indexed event announcement channel can access a first item of information which contains pointers to other items of information in which the user might be interested. A hash value of the pointed-to information is also provided in addition to the pointers themselves. In order to provide for authentication of the pointed-to information, the user authenticates the first item of information using a secure heavyweight authentication technique and then uses , the hash …
Read the whole patent
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 February 24, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 24, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2025.
- 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.