A method for accelerating cryptographic operations on elliptic curves
CA 2353395 C · Owner: Vanstone, Scott A. · Inventors: Lambert, Robert J.; Gallant, Robert; Vanstone, Scott A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides a method for accelerating multiplication of an elliptic curve point Q(x,y) by a scalar k the method comprising the steps of , selecting an elliptic curve over a finite field Fq where q is a prime power such that there exists an endomorphism ~ where ~(Q) = .lambda..Q for all , points Q(x,y) on the elliptic curve; and using smaller representations ki of the scalar k in combination with the mapping ~ to compute the scalar multiple of the elliptic curve point Q.
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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 December 23, 1999 and granted July 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2021.
- 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
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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.