From 958ef783a4143314fbfb81cebc42956a12cfc5b7 Mon Sep 17 00:00:00 2001
From: FiveMovesAhead <ying@tig.foundation>
Date: Mon, 17 Mar 2025 13:10:08 +0800
Subject: [PATCH] Require a minimum number of nonces.

---
 tig-protocol/src/contracts/benchmarks.rs | 13 +++++++++----
 tig-structs/src/config.rs                |  1 +
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/tig-protocol/src/contracts/benchmarks.rs b/tig-protocol/src/contracts/benchmarks.rs
index 3625fbd..08f211b 100644
--- a/tig-protocol/src/contracts/benchmarks.rs
+++ b/tig-protocol/src/contracts/benchmarks.rs
@@ -18,10 +18,6 @@ pub async fn submit_precommit<T: Context>(
         return Err(anyhow!("Invalid settings.player_id. Must be {}", player_id));
     }
 
-    if num_nonces == 0 {
-        return Err(anyhow!("Invalid num_nonces. Must be greater than 0"));
-    }
-
     let config = ctx.get_config().await;
 
     let latest_block_id = ctx.get_latest_block_id().await;
@@ -44,6 +40,15 @@ pub async fn submit_precommit<T: Context>(
         return Err(anyhow!("Invalid challenge '{}'", settings.challenge_id));
     }
 
+    // verify min nonces
+    let min_nonces = config.benchmarks.min_nonces[&settings.challenge_id];
+    if num_nonces < min_nonces {
+        return Err(anyhow!(
+            "Invalid num_nonces. Must be at least {}",
+            min_nonces
+        ));
+    }
+
     // verify algorithm is active
     if !ctx
         .get_algorithm_state(&settings.algorithm_id)
diff --git a/tig-structs/src/config.rs b/tig-structs/src/config.rs
index 719f301..58e67a3 100644
--- a/tig-structs/src/config.rs
+++ b/tig-structs/src/config.rs
@@ -68,6 +68,7 @@ serializable_struct_with_getters! {
         min_per_nonce_fee: PreciseNumber,
         min_base_fee: PreciseNumber,
         runtime_configs: HashMap<AlgorithmType, RuntimeConfig>,
+        min_nonces: HashMap<String, u32>,
     }
 }
 serializable_struct_with_getters! {