Commit 3ddcb5d1 authored by Niels Möller's avatar Niels Möller

Note the Edwards curve neutral point.

parent 454eb857
...@@ -138,7 +138,8 @@ For an Edwards curve, we consider the special case ...@@ -138,7 +138,8 @@ For an Edwards curve, we consider the special case
\begin{equation*} \begin{equation*}
x^2 + y^2 = 1 + d x^2 y^2 x^2 + y^2 = 1 + d x^2 y^2
\end{equation*} \end{equation*}
See \url{http://cr.yp.to/papers.html#newelliptic}. See \url{http://cr.yp.to/papers.html#newelliptic}. The neutral point is
$(0, 1)$.
Affine formulas for addition, $(x_3, y_3) = (x_1, y_1) + (x_2, Affine formulas for addition, $(x_3, y_3) = (x_1, y_1) + (x_2,
y_2)$: y_2)$:
......
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