p521: projective arithmetic tests

p521/Cargo.toml

@@ -20,8 +20,12 @@ elliptic-curve = { version = "0.13", default-features = false, features = ["hazm
 sha2 = { version = "0.10", optional = true, default-features = false }
 
 # optional dependencies
+hex-literal = { version = "0.4", optional = true }
 primeorder = { version = "0.13.1", optional = true, path = "../primeorder" }
 
+[dev-dependencies]
+hex-literal = "0.4"
+
 [features]
 default = ["pem", "std"]
 alloc = ["elliptic-curve/alloc"]
@@ -30,6 +34,7 @@ std = ["alloc", "elliptic-curve/std"]
 jwk = ["elliptic-curve/jwk"]
 pem = ["elliptic-curve/pem", "pkcs8"]
 pkcs8 = ["elliptic-curve/pkcs8"]
+test-vectors = ["dep:hex-literal"]
 wip-arithmetic-do-not-use = ["dep:primeorder"]
 voprf = ["elliptic-curve/voprf", "dep:sha2"]
 

p521/src/lib.rs

@@ -18,6 +18,9 @@
 #[cfg(feature = "wip-arithmetic-do-not-use")]
 pub mod arithmetic;
 
+#[cfg(any(feature = "test-vectors", test))]
+pub mod test_vectors;
+
 pub use elliptic_curve::{self, bigint::U576};
 
 #[cfg(feature = "pkcs8")]

p521/src/test_vectors.rs

@@ -0,0 +1,3 @@
+//! secp521r1 test vectors.
+
+pub mod group;