Post
Topic
Board Development & Technical Discussion
Re: Elliptic Curve Point Addition Question
by
j2002ba2
on 11/10/2021, 16:26:14 UTC
Thanks so much, but I wanted to know if, during the calculation, it had to go past "0" to calculate the result like in the image I attached in my first post.

I think I was using the wrong language by saying outside of the field or curve.

I know that the addition always results in a valid point, but did it have to go "around the clock" to get there?

I am trying to show the results in my school project so the Python script (or something) would be fantastic to show it in action.

Thanks again.

Two different numbers in a modular field are both bigger and smaller than each other - there are infinite bunch of numbers corresponding to each one, positive, negative, imaginary. So comparing them makes no sense. Any operation passes through zero any number of times in both directions. Furthermore, the real x and y from the equation y2 = x3 + 7 are never both integer (or rational). They have integer representation when taken modulo p, but that's all.