refactor: random signing key

Author: Larkooo

Assets/Dojo/Plugins/WebGL/starknet.jslib

@@ -88,8 +88,8 @@ mergeInto(LibraryManager.library, {
     provider.__destroy_into_raw();
     dynCall_vi(cb, confirmed);
   },
-  NewSigningKey: function () {
-    let pk = new wasm_bindgen.SigningKey().secretScalar();
+  RandomSigningKey: function () {
+    let pk = wasm_bindgen.SigningKey.fromRandom().secretScalar();
     let bufferSize = lengthBytesUTF8(pk) + 1;
     let buffer = _malloc(bufferSize);
     stringToUTF8(pk, buffer, bufferSize);

Assets/Dojo/Runtime/Starknet/SigningKey.cs

@@ -28,7 +28,7 @@ public VerifyingKey PublicKey
         public SigningKey()
         {
 #if UNITY_WEBGL && !UNITY_EDITOR
-            Inner = new FieldElement(StarknetInterop.NewSigningKey());
+            Inner = new FieldElement(StarknetInterop.RandomSigningKey());
 #else
             Inner = new FieldElement(dojo.signing_key_new());
 #endif

Assets/Dojo/Runtime/Starknet/StarknetInterop.cs

@@ -208,7 +208,7 @@ public static Task<bool> WaitForTransactionAsync(IntPtr provider, FieldElement t
         }
 
         [DllImport("__Internal")]
-        public static extern string NewSigningKey();
+        public static extern string RandomSigningKey();
 
         [DllImport("__Internal")]
         public static extern string Sign(CString privateKey, CString hash);