From 7e79a2b3d31032e2acf62e6b02a1435b7b1dd646 Mon Sep 17 00:00:00 2001
From: Paul Hauner <paul@paulhauner.com>
Date: Mon, 11 Mar 2019 19:01:44 +1100
Subject: [PATCH] Improve PublicKey Hash impl efficiency

Instead of SSZ-encoding, we just use the AMCL tobytes method.
---
 eth2/utils/bls/src/public_key.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/eth2/utils/bls/src/public_key.rs b/eth2/utils/bls/src/public_key.rs
index 3ab2b60bbb..ffe710d2da 100644
--- a/eth2/utils/bls/src/public_key.rs
+++ b/eth2/utils/bls/src/public_key.rs
@@ -93,7 +93,11 @@ impl PartialEq for PublicKey {
 
 impl Hash for PublicKey {
     fn hash<H: Hasher>(&self, state: &mut H) {
-        ssz_encode(self).hash(state)
+        // Note: this is not necessarily the consensus-ready hash. Instead, it is designed to be
+        // optimally fast for internal usage.
+        //
+        // To hash for consensus purposes, use the SSZ-encoded bytes.
+        self.0.as_bytes().hash(state)
     }
 }