feat: schnorr check in wasm

packages/system/src/nostr-system.ts

@@ -199,9 +199,12 @@ export class NostrSystem extends EventEmitter<NostrSystemEvents> implements Syst
       this.#log("Rejecting invalid event %O", ev);
       return;
     }
-    if (this.checkSigs && !EventExt.verify(ev)) {
-      this.#log("Invalid sig %O", ev);
-      return;
+    if (this.checkSigs) {
+      const id = EventExt.createId(ev);
+      if (!this.#queryOptimizer.schnorrVerify(id, ev.sig, ev.pubkey)) {
+        this.#log("Invalid sig %O", ev);
+        return;
+      }
     }
 
     for (const [, v] of this.Queries) {

packages/system/src/query-optimizer/index.ts

@@ -1,3 +1,4 @@
+import { schnorr } from "@noble/curves/secp256k1";
 import { ReqFilter } from "../nostr";
 import { expandFilter } from "./request-expander";
 import { flatMerge, mergeSimilar } from "./request-merger";
@@ -24,6 +25,7 @@ export interface QueryOptimizer {
   getDiff(prev: Array<ReqFilter>, next: Array<ReqFilter>): Array<FlatReqFilter>;
   flatMerge(all: Array<FlatReqFilter>): Array<ReqFilter>;
   compress(all: Array<ReqFilter>): Array<ReqFilter>;
+  schnorrVerify(hash: string, sig: string, pubkey: string): boolean;
 }
 
 export const DefaultQueryOptimizer = {
@@ -43,4 +45,7 @@ export const DefaultQueryOptimizer = {
   compress: (all: Array<ReqFilter>) => {
     return mergeSimilar(all);
   },
+  schnorrVerify: (hash, sig, pubkey) => {
+    return schnorr.verify(sig, hash, pubkey);
+  },
 } as QueryOptimizer;