Canada seems to allow software patents [1]. Amazon got a Canadian patent for their one-click stuff, as mentioned in that Wikipedia article.
Here's a Canadian patent on accelerated finite field operations on an elliptic curve [2]. Here's one on public key cryptography using elliptic curves [3].
Here's a Canadian patent on accelerated finite field operations on an elliptic curve [2]. Here's one on public key cryptography using elliptic curves [3].
[1] https://en.wikipedia.org/wiki/Software_patents_under_Canadia...
[2] https://brevets-patents.ic.gc.ca/opic-cipo/cpd/eng/patent/23...
[3] https://patents.google.com/patent/CA2129203A1/en