From 3f40bd16e79d61b9e0f48ccf3077b3f8bd67f9b4 Mon Sep 17 00:00:00 2001
From: Aaron Feickert <66188213+AaronFeickert@users.noreply.github.com>
Date: Wed, 9 Aug 2023 14:14:41 -0500
Subject: [PATCH] Add wrapper types for hashers

---
 src/hashing.rs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/hashing.rs b/src/hashing.rs
index ea8758a1..3c74d1cb 100644
--- a/src/hashing.rs
+++ b/src/hashing.rs
@@ -47,6 +47,10 @@ use crate::{
     keys::SecretKey,
 };
 
+/// Wrapper type for 256- and 512-bit `Blake2b` hashers
+pub type Blake2b256 = Blake2b<U32>;
+pub type Blake2b512 = Blake2b<U64>;
+
 /// The `DomainSeparation` trait is used to inject domain separation tags into the [`DomainSeparatedHasher`] in a
 /// way that can be applied consistently, but without hard-coding anything into the hasher itself.
 ///
@@ -418,9 +422,9 @@ impl LengthExtensionAttackResistant for Blake2bVar {}
 
 impl LengthExtensionAttackResistant for Sha3_256 {}
 
-impl LengthExtensionAttackResistant for Blake2b<U32> {}
+impl LengthExtensionAttackResistant for Blake2b256 {}
 
-impl LengthExtensionAttackResistant for Blake2b<U64> {}
+impl LengthExtensionAttackResistant for Blake2b512 {}
 
 //------------------------------------------------    HMAC  ------------------------------------------------------------
 /// A domain separation tag for use in MAC derivation algorithms.