Implement ed_on_bn254 curve (baby-jubjub) (#230)

r1cs-std/Cargo.toml

@@ -36,12 +36,13 @@ algebra = { path = "../algebra", default-features = false, features = [ "bls12_3
 [features]
 default = ["std"]
 full = [ 
-  "bls12_377", "ed_on_bls12_381", "ed_on_bls12_377", "ed_on_cp6_782", 
+  "bls12_377", "ed_on_bn254", "ed_on_bls12_381", "ed_on_bls12_377", "ed_on_cp6_782", 
   "ed_on_bw6_761", "ed_on_mnt4_298", "ed_on_mnt4_753", "mnt4_298", "mnt4_753", "mnt6_298", "mnt6_753" 
 ]
 
 bls12_377 = [ "algebra/bls12_377" ]
 ed_on_bls12_381 = [ "algebra/ed_on_bls12_381" ]
+ed_on_bn254 = [ "algebra/ed_on_bn254" ]
 ed_on_bls12_377 = [ "algebra/ed_on_bls12_377" ]
 ed_on_cp6_782 = [ "algebra/ed_on_cp6_782" ]
 ed_on_bw6_761 = [ "algebra/ed_on_bw6_761", "algebra/ed_on_cp6_782" ]

r1cs-std/src/instantiated/ed_on_bn254/curves.rs

@@ -0,0 +1,11 @@
+use crate::groups::curves::twisted_edwards::AffineGadget;
+use algebra::ed_on_bn254::*;
+
+use crate::ed_on_bn254::FqGadget;
+
+pub type EdwardsGadget = AffineGadget<EdwardsParameters, Fq, FqGadget>;
+
+#[test]
+fn test() {
+    crate::groups::curves::twisted_edwards::test::<Fq, _, EdwardsGadget>();
+}

r1cs-std/src/instantiated/ed_on_bn254/fields.rs

@@ -0,0 +1,8 @@
+use crate::fields::fp::FpGadget;
+
+pub type FqGadget = FpGadget<algebra::ed_on_bn254::Fq>;
+
+#[test]
+fn test() {
+    crate::fields::tests::field_test::<_, algebra::ed_on_bn254::Fq, FqGadget>();
+}

r1cs-std/src/instantiated/ed_on_bn254/mod.rs

@@ -0,0 +1,5 @@
+mod curves;
+mod fields;
+
+pub use curves::*;
+pub use fields::*;

r1cs-std/src/instantiated/mod.rs

@@ -13,6 +13,9 @@ pub(crate) mod ed_on_cp6_782;
 #[cfg(feature = "ed_on_bw6_761")]
 pub mod ed_on_bw6_761;
 
+#[cfg(feature = "ed_on_bn254")]
+pub mod ed_on_bn254;
+
 #[cfg(feature = "ed_on_bls12_381")]
 pub mod ed_on_bls12_381;
 

r1cs-std/src/lib.rs

@@ -60,6 +60,9 @@ pub use instantiated::ed_on_mnt4_753;
 #[cfg(feature = "ed_on_cp6_782")]
 pub use instantiated::ed_on_cp6_782;
 
+#[cfg(feature = "ed_on_bn254")]
+pub use instantiated::ed_on_bn254;
+
 #[cfg(feature = "ed_on_bls12_381")]
 pub use instantiated::ed_on_bls12_381;