From 49749d96a01cd514571099d585e88797ba4e7e2a Mon Sep 17 00:00:00 2001
From: Luke Parker <lukeparker5132@gmail.com>
Date: Wed, 28 Sep 2022 09:29:58 -0400
Subject: [PATCH] Replace tiny_keccak with sha3 in Monero

---
 Cargo.lock              |  2 +-
 coins/monero/Cargo.toml |  2 +-
 coins/monero/src/lib.rs | 10 +++-------
 3 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 4f15420e..845ee466 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4608,9 +4608,9 @@ dependencies = [
  "reqwest",
  "serde",
  "serde_json",
+ "sha3 0.10.5",
  "subtle",
  "thiserror",
- "tiny-keccak",
  "tokio",
  "zeroize",
 ]
diff --git a/coins/monero/Cargo.toml b/coins/monero/Cargo.toml
index 08611b27..28b61185 100644
--- a/coins/monero/Cargo.toml
+++ b/coins/monero/Cargo.toml
@@ -22,7 +22,7 @@ rand_distr = "0.4"
 zeroize = { version = "1.3", features = ["zeroize_derive"] }
 subtle = "2.4"
 
-tiny-keccak = { version = "2", features = ["keccak"] }
+sha3 = "0.10"
 blake2 = { version = "0.10", optional = true }
 
 curve25519-dalek = { version = "3", features = ["std"] }
diff --git a/coins/monero/src/lib.rs b/coins/monero/src/lib.rs
index 83c65f3d..9fb0975a 100644
--- a/coins/monero/src/lib.rs
+++ b/coins/monero/src/lib.rs
@@ -17,7 +17,7 @@ use rand_core::{RngCore, CryptoRng};
 
 use zeroize::{Zeroize, ZeroizeOnDrop};
 
-use tiny_keccak::{Hasher, Keccak};
+use sha3::{Digest, Keccak256};
 
 use curve25519_dalek::{
   constants::ED25519_BASEPOINT_TABLE,
@@ -109,12 +109,8 @@ pub fn random_scalar<R: RngCore + CryptoRng>(rng: &mut R) -> Scalar {
   Scalar::from_bytes_mod_order_wide(&r)
 }
 
-pub fn hash(data: &[u8]) -> [u8; 32] {
-  let mut keccak = Keccak::v256();
-  keccak.update(data);
-  let mut res = [0; 32];
-  keccak.finalize(&mut res);
-  res
+pub(crate) fn hash(data: &[u8]) -> [u8; 32] {
+  Keccak256::digest(data).into()
 }
 
 /// Hash the provided data to a scalar via keccak256(data) % l.