Cosmos signature verification (#6)

dapps/react-dapp-v2-cosmos-provider/src/App.tsx

@@ -1,6 +1,11 @@
 import React, { useState } from "react";
 import { version } from "@walletconnect/client/package.json";
-import { formatDirectSignDoc, stringifySignDocValues } from "cosmos-wallet";
+import {
+  formatDirectSignDoc,
+  stringifySignDocValues,
+  verifyAminoSignature,
+  verifyDirectSignature,
+} from "cosmos-wallet";
 
 import Banner from "./components/Banner";
 import Blockchain from "./components/Blockchain";
@@ -129,10 +134,12 @@ export default function App() {
       params,
     });
 
+    const valid = await verifyDirectSignature(address, result.signature, signDoc);
+
     return {
       method: "cosmos_signDirect",
       address,
-      valid: true,
+      valid,
       result: result.signature,
     };
   };
@@ -162,10 +169,12 @@ export default function App() {
       params,
     });
 
+    const valid = await verifyAminoSignature(address, result.signature, signDoc);
+
     return {
       method: "cosmos_signAmino",
       address,
-      valid: true,
+      valid,
       result: result.signature,
     };
   };

dapps/react-dapp-v2-cosmos-provider/yarn.lock

@@ -2605,7 +2605,7 @@
     "@walletconnect/utils" "^2.0.0-beta.23"
     ws "^8.3.0"
 
-"@walletconnect/cosmos-provider@^2.0.0-beta.23":
+"@walletconnect/cosmos-provider@2.0.0-beta.23":
   version "2.0.0-beta.23"
   resolved "https://registry.yarnpkg.com/@walletconnect/cosmos-provider/-/cosmos-provider-2.0.0-beta.23.tgz#54c3c26835c6bc286b14eb63a7c24f6961df95e6"
   integrity sha512-RDTSHWtFVNJxK00tQtZyueaFoPEh9Nsc1Hae5NOphQsp+FQhwvVX76+J48ELW+ylS5RNU1Ji1Q/xXX32QNtRLw==