ed448-goldilocks: remove empty Ristretto implementation

Author: daxpedda

ed448-goldilocks/README.md

@@ -11,7 +11,7 @@ THIS CODE HAS NOT BEEN AUDITED OR REVIEWED. USE AT YOUR OWN RISK.
 
 ## About
 
-This crate provides a pure Rust implementation of Curve448, Edwards, Decaf, and Ristretto.
+This crate provides a pure Rust implementation of Curve448, Edwards, and Decaf.
 It is intended to be portable, fast, and safe.
 
 ## Usage

ed448-goldilocks/src/curve/twedwards.rs

@@ -1,6 +1,6 @@
 /// This module will contain the EC arithmetic for the Twisted Edwards form of Goldilocks.
 /// with the following affine equation : -x^2 + y^2 = 1 - 39082x^2y^2
-/// This curve will be used as a backend for the Goldilocks, Ristretto and Decaf through the use of isogenies.
+/// This curve will be used as a backend for the Goldilocks and Decaf through the use of isogenies.
 /// It will not be exposed in the public API.
 pub(crate) mod affine;
 pub(crate) mod extended;

ed448-goldilocks/src/decaf/points.rs

@@ -594,7 +594,7 @@ mod test {
     use crate::TWISTED_EDWARDS_BASE_POINT;
 
     #[test]
-    fn test_edwards_ristretto_operations() {
+    fn test_edwards_decaf_operations() {
         // Basic test that if P1 + P2 = P3
         // Then Decaf(P1) + Decaf(P2) = Decaf(P3)
 

ed448-goldilocks/src/edwards.rs

@@ -8,7 +8,7 @@
 /// This isogeny strategy does not clear the cofactor on the Goldilocks curve unless the Scalar is a multiple of 4.
 /// or the point is known to be in the q-torsion subgroup.
 /// Hence, one will need to multiply by the cofactor to ensure it is cleared when using the Goldilocks curve.
-/// If this is a problem, one can use a different isogeny strategy (Decaf/Ristretto)
+/// If this is a problem, one can use a different isogeny strategy (Decaf)
 pub(crate) mod affine;
 pub(crate) mod extended;
 mod scalar;

ed448-goldilocks/src/lib.rs

@@ -46,7 +46,6 @@ pub(crate) mod decaf;
 pub(crate) mod edwards;
 pub(crate) mod field;
 pub(crate) mod montgomery;
-pub(crate) mod ristretto;
 #[cfg(feature = "signing")]
 pub(crate) mod sign;
 
@@ -62,7 +61,6 @@ pub use edwards::{
 };
 pub use field::{MODULUS_LIMBS, ORDER, Scalar, WIDE_ORDER};
 pub use montgomery::{MontgomeryPoint, ProjectiveMontgomeryPoint};
-pub use ristretto::{CompressedRistretto, RistrettoPoint};
 #[cfg(feature = "signing")]
 pub use sign::*;