Jubjub Curve

This crate provides jubjub curve arithmetic and also supports fully no_std and parity-scale-codec.

Specification

The Jubjub curve is one of twisted edwards curve.

• Twisted Edwards Curve

$$ ax^2 + y^2 = 1 + dx^2y^2 $$

• Addition Law

$$ (x_3 = \frac{x_1y_1 + y_1x_1}{1 + dx_1x_1y_1y_1}, y_3 = \frac{y_1y_1 + ax_1x_1}{1 - dx_1x_1y_1y_1}) $$

Test

$ cargo test