Binary.php
Curves over y^2 + x*y = x^3 + a*x^2 + b
These are curves used in SEC 2 over prime fields: http://www.secg.org/SEC2-Ver-1.0.pdf The curve is a weierstrass curve with a[3] and a[2] set to 0.
Uses Jacobian Coordinates for speed if able:
https://en.wikipedia.org/wiki/Jacobian_curve https://en.wikibooks.org/wiki/Cryptography/Prime_Curve/Jacobian_Coordinates
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