Merge pull request #189 from Web3Auth/feat/separate-precompute

make it possible to call precompute seperately

Author: himanshuchawla009

demo/redirect-flow-example/package-lock.json

@@ -12,7 +12,7 @@
     "@types/react-dom": "^18.3.0",
     "@vitejs/plugin-react": "^4.3.2",
     "@web3auth/base": "^9.0.2",
-    "@web3auth/ethereum-mpc-provider": "^9.0.2",
+    "@web3auth/ethereum-mpc-provider": "^9.3.0",
     "@web3auth/mpc-core-kit": "file:../..",
     "browserify-zlib": "^0.2.0",
     "copy-webpack-plugin": "^11.0.0",

demo/redirect-flow-example/package.json

@@ -370,26 +370,10 @@ function App() {
         return;
       }
       const fromAddress = (await web3.eth.getAccounts())[0];
-      const originalMessage = [
-        {
-          type: "string",
-          name: "fullName",
-          value: "Satoshi Nakamoto",
-        },
-        {
-          type: "uint32",
-          name: "userId",
-          value: "1212",
-        },
-      ];
-      const params = [originalMessage, fromAddress];
-      const method = "eth_signTypedData";
-      const signedMessage = await (web3.currentProvider as any)?.sendAsync({
-        id: 1,
-        method,
-        params,
-        fromAddress,
-      });
+     
+      const message = "hello";
+      const signedMessage = await web3.eth.personal.sign(message, fromAddress, "");
+      
 
       uiConsole(signedMessage);
     } else if (coreKitInstance.keyType === "ed25519") {
@@ -398,7 +382,35 @@ function App() {
       uiConsole(sig.toString("hex"));
     }
   };
+  const signMessageWithPrecomputedTss = async (): Promise<any> => {
+    if (coreKitInstance.keyType === "secp256k1") {
+      const precomputedTssClient = await coreKitInstance.precompute_secp256k1();
+      const msg = Buffer.from("hello signer!");
+      const sig = await coreKitInstance.sign(msg, false, precomputedTssClient);
+      uiConsole(sig.toString("hex"));
+    } else if (coreKitInstance.keyType === "ed25519") {
+      const msg = Buffer.from("hello signer!");
+      const sig = await coreKitInstance.sign(msg);
+      uiConsole(sig.toString("hex"));
+    }
+  };
+
+  const signMultipleMessagesWithPrecomputedTss = async (): Promise<any> => {
+    if (coreKitInstance.keyType === "secp256k1") {
+      const [precomputedTssClient, precomputedTssClient2] = await Promise.all([coreKitInstance.precompute_secp256k1(), coreKitInstance.precompute_secp256k1()]);
+
+      const msg = Buffer.from("hello signer!");
+      const sig = await coreKitInstance.sign(msg, false, precomputedTssClient);
+      const msg2 = Buffer.from("hello signer2!");
 
+      const sig2 = await coreKitInstance.sign(msg2, false, precomputedTssClient2);
+      uiConsole("Sig1: ", sig.toString("hex"), "Sig2: ", sig2.toString("hex"));
+    } else if (coreKitInstance.keyType === "ed25519") {
+      const msg = Buffer.from("hello signer!");
+      const sig = await coreKitInstance.sign(msg);
+      uiConsole(sig.toString("hex"));
+    }
+  };
   const switchChainSepolia = async () => {
     if (!provider) {
       uiConsole("provider not initialized yet");
@@ -689,6 +701,14 @@ function App() {
           Sign Message
         </button>
 
+        <button onClick={signMessageWithPrecomputedTss} className="card">
+          Sign Msgwith precomputed TSS
+        </button>
+
+        <button onClick={signMultipleMessagesWithPrecomputedTss} className="card">
+          Sign Multiple MSGs with precomputed TSS
+        </button>
+
         <button onClick={sendTransaction} className="card">
           Send Transaction
         </button>

demo/redirect-flow-example/src/App.tsx

@@ -9,6 +9,7 @@ import type {
   TorusVerifierResponse,
   UX_MODE_TYPE,
 } from "@toruslabs/customauth";
+import { Client } from "@toruslabs/tss-client";
 // TODO: move the types to a base class for both dkls and frost in future
 import type { tssLib as TssDklsLib } from "@toruslabs/tss-dkls-lib";
 import type { tssLib as TssFrostLib } from "@toruslabs/tss-frost-lib";
@@ -470,3 +471,8 @@ export interface EthereumSigner {
   sign: (msgHash: Buffer) => Promise<EthSig>;
   getPublic: () => Promise<Buffer>;
 }
+
+export interface Secp256k1PrecomputedClient {
+  client: Client;
+  serverCoeffs: Record<string, string>;
+}