Post
Topic
Board Bitcoin Discussion
Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it
by
james5000
on 02/09/2023, 09:35:56 UTC
Can someone please explain how to divide a point on the curve by 2?

I have been working on software for searching by public key, and I can divide by 2 by performing scalar multiplication by the inverse scalar, but this operation takes a long time. If anyone knows a faster way to divide, I can improve my code and release the tool for others to test.

If you're going to divide a point by 2, you multiply it by the inverse of 2 by N.

I'm currently doing it exactly like this, but it's proving to be very expensive this way.  Sad