bitwiseshiftleft/sjcl — pull request #205 by Bren2010 (2014-11-27 02:05:40+00:00)
Title: Added a way to negate points.

Really simple way to negate a point. P.negate() finds -P.

Right now, all curves have x-axis symmetry and large prime characteristic. If a curve without either of those properties is ever added, I imagine a lot of the current methods will have to be overridden, anyways.