From f774e7b073e37c7163993d5c9d8d0a77229b6e5c Mon Sep 17 00:00:00 2001
From: Dan Cline <6798349+Rjected@users.noreply.github.com>
Date: Fri, 1 Nov 2024 16:53:54 -0400
Subject: [PATCH 1/2] perf(precompile): use secp256k1 global context for
 ecrecover

---
 crates/precompile/src/secp256k1.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crates/precompile/src/secp256k1.rs b/crates/precompile/src/secp256k1.rs
index 72b5c602de..10109c2666 100644
--- a/crates/precompile/src/secp256k1.rs
+++ b/crates/precompile/src/secp256k1.rs
@@ -49,7 +49,7 @@ mod secp256k1 {
     use primitives::{alloy_primitives::B512, keccak256, B256};
     use secp256k1::{
         ecdsa::{RecoverableSignature, RecoveryId},
-        Message, Secp256k1,
+        Message, SECP256K1,
     };
 
     // Silence the unused crate dependency warning.
@@ -59,7 +59,7 @@ mod secp256k1 {
         let recid = RecoveryId::from_i32(recid as i32).expect("recovery ID is valid");
         let sig = RecoverableSignature::from_compact(sig.as_slice(), recid)?;
 
-        let secp = Secp256k1::new();
+        let secp = &SECP256K1;
         let msg = Message::from_digest(msg.0);
         let public = secp.recover_ecdsa(&msg, &sig)?;
 

From 86a9439b355e1b7666f68ab88de7e118e40347a6 Mon Sep 17 00:00:00 2001
From: Dan Cline <6798349+Rjected@users.noreply.github.com>
Date: Fri, 1 Nov 2024 17:02:50 -0400
Subject: [PATCH 2/2] remove secp var

---
 crates/precompile/src/secp256k1.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/crates/precompile/src/secp256k1.rs b/crates/precompile/src/secp256k1.rs
index 10109c2666..864b43eaf3 100644
--- a/crates/precompile/src/secp256k1.rs
+++ b/crates/precompile/src/secp256k1.rs
@@ -59,9 +59,8 @@ mod secp256k1 {
         let recid = RecoveryId::from_i32(recid as i32).expect("recovery ID is valid");
         let sig = RecoverableSignature::from_compact(sig.as_slice(), recid)?;
 
-        let secp = &SECP256K1;
         let msg = Message::from_digest(msg.0);
-        let public = secp.recover_ecdsa(&msg, &sig)?;
+        let public = SECP256K1.recover_ecdsa(&msg, &sig)?;
 
         let mut hash = keccak256(&public.serialize_uncompressed()[1..]);
         hash[..12].fill(0);