Move the secure-random code into this project due to build issues with the module, which is no longer maintained

README.md

@@ -51,7 +51,7 @@ The `metro.config.js` file rewrites a couple of imports. This is partly to work
 
 ### Cryptography
 
-For native builds, we must provide a polyfill of `webcrypto`. We use [react-native-securerandom](https://github.com/robhogan/react-native-securerandom) for the CRNG and [msrcrypto](https://github.com/kevlened/msrCrypto) for the cryptography.
+For native builds, we must provide a polyfill of `webcrypto`. We use a custom native module AppSecureRandom (based on [react-native-securerandom](https://github.com/robhogan/react-native-securerandom)) for the CRNG and [msrcrypto](https://github.com/kevlened/msrCrypto) for the cryptography.
 
 **NOTE** Keys are not currently stored securely.
 

android/app/src/main/java/xyz/blueskyweb/pubsq/AppSecureRandomModule.java

@@ -0,0 +1,28 @@
+package xyz.blueskyweb.pubsq;
+
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReactContextBaseJavaModule;
+import com.facebook.react.bridge.ReactMethod;
+import com.facebook.react.bridge.Promise;
+
+import java.security.SecureRandom;
+import android.util.Base64;
+
+public class AppSecureRandomModule extends ReactContextBaseJavaModule {
+  public AppSecureRandomModule(ReactApplicationContext context) {
+    super(context);
+  }
+
+  @ReactMethod
+  public void generateSecureRandomAsBase64(int length, Promise promise) {
+    SecureRandom secureRandom = new SecureRandom();
+    byte[] buffer = new byte[length];
+    secureRandom.nextBytes(buffer);
+    promise.resolve(Base64.encodeToString(buffer, Base64.NO_WRAP));
+  }
+
+  @Override
+  public String getName() {
+    return "AppSecureRandomModule";
+  }
+}

android/app/src/main/java/xyz/blueskyweb/pubsq/AppSecureRandomPackage.java

@@ -0,0 +1,26 @@
+package xyz.blueskyweb.pubsq;
+
+import com.facebook.react.ReactPackage;
+import com.facebook.react.bridge.NativeModule;
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.uimanager.ViewManager;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+public class AppSecureRandomPackage implements ReactPackage {
+
+  @Override
+  public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
+      return Collections.emptyList();
+  }
+
+  @Override
+  public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
+    List<NativeModule> modules = new ArrayList<>();
+    modules.add(new AppSecureRandomModule(reactContext));
+    return modules;
+  }
+
+}

android/app/src/main/java/xyz/blueskyweb/pubsq/MainApplication.java

@@ -28,6 +28,7 @@ public class MainApplication extends Application implements ReactApplication {
           List<ReactPackage> packages = new PackageList(this).getPackages();
           // Packages that cannot be autolinked yet can be added manually here, for example:
           // packages.add(new MyReactNativePackage());
+          packages.add(new AppSecureRandomPackage());
           return packages;
         }
 

ios/AppSecureRandomModule.h

@@ -0,0 +1,5 @@
+#import <React/RCTBridgeModule.h>
+
+@interface AppSecureRandomModule : NSObject <RCTBridgeModule>
+
+@end

ios/AppSecureRandomModule.m

@@ -0,0 +1,27 @@
+#import "AppSecureRandomModule.h"
+
+@implementation AppSecureRandomModule
+
+RCT_EXPORT_MODULE();
+
++ (BOOL)requiresMainQueueSetup
+{
+    return NO;
+}
+
+RCT_REMAP_METHOD(generateSecureRandomAsBase64,
+                 withLength:(int)length
+                 resolver:(RCTPromiseResolveBlock)resolve
+                 rejecter:(RCTPromiseRejectBlock)reject)
+{
+  NSMutableData* bytes = [NSMutableData dataWithLength:length];
+  int result = SecRandomCopyBytes(kSecRandomDefault,length, [bytes mutableBytes]);
+  if (result == errSecSuccess) {
+    resolve([bytes base64EncodedStringWithOptions:0]);
+  } else {
+    NSError *error = [NSError errorWithDomain:@"RNSecureRandom" code:result userInfo: nil];
+    reject(@"randombytes_error", @"Error generating random bytes", error);
+  }
+}
+
+@end

ios/Podfile.lock

@@ -296,8 +296,6 @@ PODS:
   - RNScreens (3.13.1):
     - React-Core
     - React-RCTImage
-  - RNSecureRandom (1.0.0):
-    - React
   - Yoga (1.14.0)
 
 DEPENDENCIES:
@@ -337,7 +335,6 @@ DEPENDENCIES:
   - "RNCAsyncStorage (from `../node_modules/@react-native-async-storage/async-storage`)"
   - RNInAppBrowser (from `../node_modules/react-native-inappbrowser-reborn`)
   - RNScreens (from `../node_modules/react-native-screens`)
-  - RNSecureRandom (from `../node_modules/react-native-securerandom`)
   - Yoga (from `../node_modules/react-native/ReactCommon/yoga`)
 
 SPEC REPOS:
@@ -413,8 +410,6 @@ EXTERNAL SOURCES:
     :path: "../node_modules/react-native-inappbrowser-reborn"
   RNScreens:
     :path: "../node_modules/react-native-screens"
-  RNSecureRandom:
-    :path: "../node_modules/react-native-securerandom"
   Yoga:
     :path: "../node_modules/react-native/ReactCommon/yoga"
 
@@ -454,7 +449,6 @@ SPEC CHECKSUMS:
   RNCAsyncStorage: 466b9df1a14bccda91da86e0b7d9a345d78e1673
   RNInAppBrowser: 3ff3a3b8f458aaf25aaee879d057352862edf357
   RNScreens: 40a2cb40a02a609938137a1e0acfbf8fc9eebf19
-  RNSecureRandom: 0dcee021fdb3d50cd5cee5db0ebf583c42f5af0e
   Yoga: 99652481fcd320aefa4a7ef90095b95acd181952
 
 PODFILE CHECKSUM: cf94853ebcb0d8e0d027dca9ab7a4ede886a8f20

ios/app.xcodeproj/project.pbxproj

@@ -13,6 +13,8 @@
 		13B07FC11A68108700A75B9A /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 13B07FB71A68108700A75B9A /* main.m */; };
 		5CEAE7B7A55582F96F1D5952 /* libPods-app.a in Frameworks */ = {isa = PBXBuildFile; fileRef = FCB672808307A6013805A3FE /* libPods-app.a */; };
 		81AB9BB82411601600AC10FF /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 81AB9BB72411601600AC10FF /* LaunchScreen.storyboard */; };
+		E4BD704B285AD57E00A8FED9 /* AppSecureRandomModule.m in Sources */ = {isa = PBXBuildFile; fileRef = E4BD704A285AD57E00A8FED9 /* AppSecureRandomModule.m */; };
+		E4BD704C285AD57E00A8FED9 /* AppSecureRandomModule.m in Sources */ = {isa = PBXBuildFile; fileRef = E4BD704A285AD57E00A8FED9 /* AppSecureRandomModule.m */; };
 		FEB90D21557517F9279AECA4 /* libPods-app-appTests.a in Frameworks */ = {isa = PBXBuildFile; fileRef = BAD3BC60FA05CF2D4F6F9BA2 /* libPods-app-appTests.a */; };
 /* End PBXBuildFile section */
 
@@ -42,6 +44,8 @@
 		970005155A83960D1D13380F /* Pods-app.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-app.release.xcconfig"; path = "Target Support Files/Pods-app/Pods-app.release.xcconfig"; sourceTree = "<group>"; };
 		BAD3BC60FA05CF2D4F6F9BA2 /* libPods-app-appTests.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-app-appTests.a"; sourceTree = BUILT_PRODUCTS_DIR; };
 		E4437C9E28581FA7006DA9E7 /* app.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; name = app.entitlements; path = app/app.entitlements; sourceTree = "<group>"; };
+		E4BD7049285AD54000A8FED9 /* AppSecureRandomModule.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = AppSecureRandomModule.h; sourceTree = "<group>"; };
+		E4BD704A285AD57E00A8FED9 /* AppSecureRandomModule.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = AppSecureRandomModule.m; sourceTree = "<group>"; };
 		ED22CAA45207BC18E75DB44B /* Pods-app.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-app.debug.xcconfig"; path = "Target Support Files/Pods-app/Pods-app.debug.xcconfig"; sourceTree = "<group>"; };
 		ED297162215061F000B7C4FE /* JavaScriptCore.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = JavaScriptCore.framework; path = System/Library/Frameworks/JavaScriptCore.framework; sourceTree = SDKROOT; };
 		FCB672808307A6013805A3FE /* libPods-app.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-app.a"; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -94,6 +98,8 @@
 				13B07FB61A68108700A75B9A /* Info.plist */,
 				81AB9BB72411601600AC10FF /* LaunchScreen.storyboard */,
 				13B07FB71A68108700A75B9A /* main.m */,
+				E4BD7049285AD54000A8FED9 /* AppSecureRandomModule.h */,
+				E4BD704A285AD57E00A8FED9 /* AppSecureRandomModule.m */,
 			);
 			name = app;
 			sourceTree = "<group>";
@@ -369,6 +375,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				00E356F31AD99517003FC87E /* appTests.m in Sources */,
+				E4BD704C285AD57E00A8FED9 /* AppSecureRandomModule.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -377,6 +384,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				13B07FBC1A68108700A75B9A /* AppDelegate.mm in Sources */,
+				E4BD704B285AD57E00A8FED9 /* AppSecureRandomModule.m in Sources */,
 				13B07FC11A68108700A75B9A /* main.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

ios/app/AppDelegate.mm

@@ -44,7 +44,7 @@
   bridge.surfacePresenter = _bridgeAdapter.surfacePresenter;
 #endif
 
-  UIView *rootView = RCTAppSetupDefaultRootView(bridge, @"app", nil);
+  UIView *rootView = RCTAppSetupDefaultRootView(bridge, @"xyz.blueskyweb.pubsq", nil);
 
   if (@available(iOS 13.0, *)) {
     rootView.backgroundColor = [UIColor systemBackgroundColor];

package.json

@@ -21,6 +21,7 @@
     "@react-navigation/native-stack": "^6.6.2",
     "@react-navigation/stack": "^6.2.1",
     "@zxing/text-encoding": "^0.9.0",
+    "base64-js": "^1.5.1",
     "mobx": "^6.6.0",
     "mobx-react-lite": "^3.4.0",
     "mobx-state-tree": "^5.1.5",
@@ -31,7 +32,6 @@
     "react-native-inappbrowser-reborn": "^3.6.3",
     "react-native-safe-area-context": "^4.3.1",
     "react-native-screens": "^3.13.1",
-    "react-native-securerandom": "^1.0.0",
     "react-native-web": "^0.17.7",
     "ucans": "0.9.1"
   },

src/platform/polyfills.native.ts

@@ -1,7 +1,17 @@
-import {generateSecureRandom} from 'react-native-securerandom'
+// import {generateSecureRandom} from 'react-native-securerandom'
+import {NativeModules} from 'react-native'
+const {AppSecureRandomModule} = NativeModules
+import {toByteArray} from 'base64-js'
 import crypto from 'msrcrypto'
 import '@zxing/text-encoding' // TextEncoder / TextDecoder
 
+async function generateSecureRandom(bytes: number) {
+  console.log('a')
+  return toByteArray(
+    await AppSecureRandomModule.generateSecureRandomAsBase64(bytes),
+  )
+}
+
 export const whenWebCrypto = new Promise(async (resolve, reject) => {
   try {
     const bytes = await generateSecureRandom(48)

yarn.lock

@@ -3838,7 +3838,7 @@ balanced-match@^1.0.0:
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.2.tgz#e83e3a7e3f300b34cb9d87f615fa0cbf357690ee"
   integrity sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==
 
-base64-js@*, base64-js@^1.1.2, base64-js@^1.3.1, base64-js@^1.5.1:
+base64-js@^1.1.2, base64-js@^1.3.1, base64-js@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.5.1.tgz#1b1b440160a5bf7ad40b650f095963481903930a"
   integrity sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==
@@ -11059,13 +11059,6 @@ react-native-screens@^3.13.1:
     react-freeze "^1.0.0"
     warn-once "^0.1.0"
 
-react-native-securerandom@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/react-native-securerandom/-/react-native-securerandom-1.0.0.tgz#1cff2f727c90c9ec3318b42dbf825a628b53b49b"
-  integrity sha512-lnhcsWloFzMN/HffyDBlh4VlqdhDH8uxEzUIH3aJPgC1PxV6OKZkvAk409EwsAhcmG/z3yZuVKegKpUr5IM9ug==
-  dependencies:
-    base64-js "*"
-
 react-native-web@^0.17.7:
   version "0.17.7"
   resolved "https://registry.yarnpkg.com/react-native-web/-/react-native-web-0.17.7.tgz#038899dbc94467a0ca0be214b88a30e0c117b176"