optimization: MPT verify hardcode key_pow2 64 nibbles

HerodotusDev · Oct 31, 2023 · e56d6cf · e56d6cf
1 parent 97aad21
commit e56d6cf
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/data_structures/eth_mpt.cairo b/src/data_structures/eth_mpt.cairo
@@ -57,7 +57,11 @@ impl MPTImpl of MPTTrait {
     ) -> Result<Words64, felt252> {
         let mut current_hash = *self.root;
         let mut proof_index: usize = 0;
-        let mut key_pow2: u256 = pow(2, (key_len.into() - 1) * 4);
+        let mut key_pow2: u256 = if key_len == 64 {
+            0x1000000000000000000000000000000000000000000000000000000000000000
+        } else {
+            pow(2, (key_len.into() - 1) * 4)
+        };
 
         let proof_len = proof.len();