Add wide config for ECDSA in < 2^16 gates

plonky2/src/gadgets/ecdsa.rs

@@ -74,7 +74,15 @@ mod tests {
 
         type Curve = Secp256K1;
 
-        let config = CircuitConfig::standard_ecc_config();
+        const WIDE: bool = true;
+
+        let config = if WIDE {
+            // < 2^16 gates.
+            CircuitConfig::wide_ecc_config()
+        } else {
+            // < 2^17 gates.
+            CircuitConfig::standard_ecc_config()
+        };
 
         let pw = PartialWitness::new();
         let mut builder = CircuitBuilder::<F, D>::new(config);

plonky2/src/plonk/circuit_data.rs

@@ -86,6 +86,13 @@ impl CircuitConfig {
         }
     }
 
+    pub fn wide_ecc_config() -> Self {
+        Self {
+            num_wires: 234,
+            ..Self::standard_recursion_config()
+        }
+    }
+
     pub fn standard_recursion_zk_config() -> Self {
         CircuitConfig {
             zero_knowledge: true,