From c1d67cbec043285213bf085fd101db710a0a519e Mon Sep 17 00:00:00 2001
From: David Burkett <davidburkett38@gmail.com>
Date: Mon, 4 Feb 2019 22:54:20 -0800
Subject: [PATCH] perf: Removing unnecessary array copy. (#2531)
---
core/src/libtx/proof.rs | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/core/src/libtx/proof.rs b/core/src/libtx/proof.rs
index aa32f4983..8a523dd63 100644
--- a/core/src/libtx/proof.rs
+++ b/core/src/libtx/proof.rs
@@ -29,11 +29,7 @@ where
let root_key = k.derive_key(0, &K::root_key_id())?;
let res = blake2::blake2b::blake2b(32, &commit.0, &root_key.0[..]);
let res = res.as_bytes();
- let mut ret_val = [0; 32];
- for i in 0..res.len() {
- ret_val[i] = res[i];
- }
- match SecretKey::from_slice(k.secp(), &ret_val) {
+ match SecretKey::from_slice(k.secp(), &res) {
Ok(sk) => Ok(sk),
Err(e) => Err(ErrorKind::RangeProof(
format!("Unable to create nonce: {:?}", e).to_string(),