Move Equihash verification APIs into equihash crate

components/equihash/Cargo.toml

@@ -9,3 +9,6 @@ license = "MIT OR Apache-2.0"
 edition = "2018"
 
 [dependencies]
+blake2b_simd = "0.5"
+byteorder = "1"
+log = "0.4"

components/equihash/src/lib.rs

@@ -1,7 +1,5 @@
-#[cfg(test)]
-mod tests {
-    #[test]
-    fn it_works() {
-        assert_eq!(2 + 2, 4);
-    }
-}
+//! The Equihash Proof-of-Work function.
+
+mod verify;
+
+pub use verify::{is_valid_solution, is_valid_solution_iterative, is_valid_solution_recursive};

zcash_primitives/Cargo.toml

@@ -17,6 +17,7 @@ blake2b_simd = "0.5"
 blake2s_simd = "0.5"
 byteorder = "1"
 crypto_api_chachapoly = "0.2.1"
+equihash = { version = "0.0", path = "../components/equihash" }
 ff = { version = "0.6", path = "../ff" }
 fpe = "0.2"
 hex = "0.3"

zcash_primitives/src/block.rs

@@ -9,7 +9,7 @@ use std::ops::Deref;
 
 use crate::serialize::Vector;
 
-pub mod equihash;
+pub use equihash;
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
 pub struct BlockHash(pub [u8; 32]);