initial vrf crate structure

Author: carloskiki

Cargo.lock

@@ -13,6 +13,7 @@ members = [
     "signature_derive",
     "universal-hash",
     "signature",
+    "vrf",
 ]
 
 [patch.crates-io]

Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "vrf"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+digest = "=0.11.0-pre.10"

vrf/Cargo.toml

@@ -0,0 +1,26 @@
+use digest::{Output, OutputSizeUser};
+
+pub trait Proof<H>
+where 
+    H: OutputSizeUser,
+{
+    fn to_hash(&self) -> Output<H>;
+}
+
+pub trait Prover<H>
+where
+    H: OutputSizeUser,
+{
+    type Proof: Proof<H>;
+    
+    fn prove(&self, alpha: &[u8]) -> Self::Proof;
+}
+
+pub trait Verifier<H>
+where
+    H: OutputSizeUser,
+{
+    type Proof: Proof<H>;
+    
+    fn verify(&self, alpha: &[u8], proof: Self::Proof) -> bool;
+}