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Diffstat (limited to 'pyecsca/ec/efd/montgom/coordinates')
| -rw-r--r-- | pyecsca/ec/efd/montgom/coordinates | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/pyecsca/ec/efd/montgom/coordinates b/pyecsca/ec/efd/montgom/coordinates index 0821ec6..d3b7f4e 100644 --- a/pyecsca/ec/efd/montgom/coordinates +++ b/pyecsca/ec/efd/montgom/coordinates @@ -4,6 +4,7 @@ parameter b coordinate x coordinate y satisfying b*y^2 == x^3 + a*x^2 + x +ysquared (x^3+a*x^2+x)/b addition x = b*(y2-y1)^2/(x2-x1)^2-a-x1-x2 addition y = (2*x1+x2+a)*(y2-y1)/(x2-x1)-b*(y2-y1)^3/(x2-x1)^3-y1 doubling x = b*(3*x1^2+2*a*x1+1)^2/(2*b*y1)^2-a-x1-x1 |