From cce1da378761dd76271730ad154e6f5b8a7675bb Mon Sep 17 00:00:00 2001
From: Igor Aleksanov <popzxc@yandex.ru>
Date: Thu, 5 Sep 2024 18:11:08 +0400
Subject: [PATCH] fix(snark-wrapper): Revert "improvement of parameters" (#24)

Reverts matter-labs/zksync-crypto#13

Said PR requires new VKs, so it should be processed as a part of
upgrade.
---
 crates/rescue-poseidon/src/poseidon2/params.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/rescue-poseidon/src/poseidon2/params.rs b/crates/rescue-poseidon/src/poseidon2/params.rs
index ed42549..a80f667 100644
--- a/crates/rescue-poseidon/src/poseidon2/params.rs
+++ b/crates/rescue-poseidon/src/poseidon2/params.rs
@@ -46,7 +46,7 @@ impl<E: Engine, const RATE: usize, const WIDTH: usize> Default for Poseidon2Para
         let diag_internal_matrix = poseidon2_internal_matrix::<E, WIDTH>();
 
         let mut round_constants = params.round_constants().to_owned();
-        for i in (full_rounds / 2)..(full_rounds / 2) + partial_rounds {
+        for i in 0..params.partial_rounds {
             for j in 1..WIDTH {
                 round_constants[i][j] = E::Fr::zero();
             }