A fuzzy commitment scheme
CA 2362882 A1 · Owner: Rsa Security Holding, Inc. · Inventors: Juels, Ari; Wattenberg, Martin M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Techniques from the areas of error-correcting codes and cryptography are combined to achieve a new type of cryptographic primitive referred to as a fuzzy commitment scheme. The scheme includes using a decoding function to map an input pattern to a first codeword selected from the plurality of codewords associated with an error-correcting code calculating an offset between the , input pattern and the first codeword and hashing the first codeword. The hash of the first codeword in association with the offset form a fuzzy commitment. The fuzzy commitment may be applied in a variety of ways: stored to register an input pattern; used to authenticate a stored input pattern; used to encrypt …
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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 February 10, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 10, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 2022.
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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.