Merge pull request #225 from synonymdev/seed-derivation

Derive LDK seed from mnemonic in example app

Author: Jasonvdb

example/ios/Podfile.lock

@@ -10,71 +10,12 @@ PODS:
     - React-Core (= 0.72.4)
     - React-jsi (= 0.72.4)
     - ReactCommon/turbomodule/core (= 0.72.4)
-  - Flipper (0.182.0):
-    - Flipper-Folly (~> 2.6)
-  - Flipper-Boost-iOSX (1.76.0.1.11)
-  - Flipper-DoubleConversion (3.2.0.1)
-  - Flipper-Fmt (7.1.7)
-  - Flipper-Folly (2.6.10):
-    - Flipper-Boost-iOSX
-    - Flipper-DoubleConversion
-    - Flipper-Fmt (= 7.1.7)
-    - Flipper-Glog
-    - libevent (~> 2.1.12)
-    - OpenSSL-Universal (= 1.1.1100)
-  - Flipper-Glog (0.5.0.5)
-  - Flipper-PeerTalk (0.0.4)
-  - FlipperKit (0.182.0):
-    - FlipperKit/Core (= 0.182.0)
-  - FlipperKit/Core (0.182.0):
-    - Flipper (~> 0.182.0)
-    - FlipperKit/CppBridge
-    - FlipperKit/FBCxxFollyDynamicConvert
-    - FlipperKit/FBDefines
-    - FlipperKit/FKPortForwarding
-    - SocketRocket (~> 0.6.0)
-  - FlipperKit/CppBridge (0.182.0):
-    - Flipper (~> 0.182.0)
-  - FlipperKit/FBCxxFollyDynamicConvert (0.182.0):
-    - Flipper-Folly (~> 2.6)
-  - FlipperKit/FBDefines (0.182.0)
-  - FlipperKit/FKPortForwarding (0.182.0):
-    - CocoaAsyncSocket (~> 7.6)
-    - Flipper-PeerTalk (~> 0.0.4)
-  - FlipperKit/FlipperKitHighlightOverlay (0.182.0)
-  - FlipperKit/FlipperKitLayoutHelpers (0.182.0):
-    - FlipperKit/Core
-    - FlipperKit/FlipperKitHighlightOverlay
-    - FlipperKit/FlipperKitLayoutTextSearchable
-  - FlipperKit/FlipperKitLayoutIOSDescriptors (0.182.0):
-    - FlipperKit/Core
-    - FlipperKit/FlipperKitHighlightOverlay
-    - FlipperKit/FlipperKitLayoutHelpers
-    - YogaKit (~> 1.18)
-  - FlipperKit/FlipperKitLayoutPlugin (0.182.0):
-    - FlipperKit/Core
-    - FlipperKit/FlipperKitHighlightOverlay
-    - FlipperKit/FlipperKitLayoutHelpers
-    - FlipperKit/FlipperKitLayoutIOSDescriptors
-    - FlipperKit/FlipperKitLayoutTextSearchable
-    - YogaKit (~> 1.18)
-  - FlipperKit/FlipperKitLayoutTextSearchable (0.182.0)
-  - FlipperKit/FlipperKitNetworkPlugin (0.182.0):
-    - FlipperKit/Core
-  - FlipperKit/FlipperKitReactPlugin (0.182.0):
-    - FlipperKit/Core
-  - FlipperKit/FlipperKitUserDefaultsPlugin (0.182.0):
-    - FlipperKit/Core
-  - FlipperKit/SKIOSNetworkPlugin (0.182.0):
-    - FlipperKit/Core
-    - FlipperKit/FlipperKitNetworkPlugin
   - fmt (6.2.1)
   - glog (0.3.5)
   - hermes-engine (0.72.4):
     - hermes-engine/Pre-built (= 0.72.4)
   - hermes-engine/Pre-built (0.72.4)
   - libevent (2.1.12)
-  - OpenSSL-Universal (1.1.1100)
   - RCT-Folly (2021.07.22.00):
     - boost
     - DoubleConversion
@@ -502,46 +443,22 @@ PODS:
     - React-Core
   - SocketRocket (0.6.1)
   - Yoga (1.14.0)
-  - YogaKit (1.18.1):
-    - Yoga (~> 1.14)
 
 DEPENDENCIES:
   - boost (from `../node_modules/react-native/third-party-podspecs/boost.podspec`)
   - DoubleConversion (from `../node_modules/react-native/third-party-podspecs/DoubleConversion.podspec`)
   - FBLazyVector (from `../node_modules/react-native/Libraries/FBLazyVector`)
   - FBReactNativeSpec (from `../node_modules/react-native/React/FBReactNativeSpec`)
-  - Flipper (= 0.182.0)
-  - Flipper-Boost-iOSX (= 1.76.0.1.11)
-  - Flipper-DoubleConversion (= 3.2.0.1)
-  - Flipper-Fmt (= 7.1.7)
-  - Flipper-Folly (= 2.6.10)
-  - Flipper-Glog (= 0.5.0.5)
-  - Flipper-PeerTalk (= 0.0.4)
-  - FlipperKit (= 0.182.0)
-  - FlipperKit/Core (= 0.182.0)
-  - FlipperKit/CppBridge (= 0.182.0)
-  - FlipperKit/FBCxxFollyDynamicConvert (= 0.182.0)
-  - FlipperKit/FBDefines (= 0.182.0)
-  - FlipperKit/FKPortForwarding (= 0.182.0)
-  - FlipperKit/FlipperKitHighlightOverlay (= 0.182.0)
-  - FlipperKit/FlipperKitLayoutPlugin (= 0.182.0)
-  - FlipperKit/FlipperKitLayoutTextSearchable (= 0.182.0)
-  - FlipperKit/FlipperKitNetworkPlugin (= 0.182.0)
-  - FlipperKit/FlipperKitReactPlugin (= 0.182.0)
-  - FlipperKit/FlipperKitUserDefaultsPlugin (= 0.182.0)
-  - FlipperKit/SKIOSNetworkPlugin (= 0.182.0)
   - glog (from `../node_modules/react-native/third-party-podspecs/glog.podspec`)
   - hermes-engine (from `../node_modules/react-native/sdks/hermes-engine/hermes-engine.podspec`)
   - libevent (~> 2.1.12)
-  - OpenSSL-Universal (= 1.1.1100)
   - RCT-Folly (from `../node_modules/react-native/third-party-podspecs/RCT-Folly.podspec`)
   - RCTRequired (from `../node_modules/react-native/Libraries/RCTRequired`)
   - RCTTypeSafety (from `../node_modules/react-native/Libraries/TypeSafety`)
   - React (from `../node_modules/react-native/`)
   - React-callinvoker (from `../node_modules/react-native/ReactCommon/callinvoker`)
   - React-Codegen (from `build/generated/ios`)
   - React-Core (from `../node_modules/react-native/`)
-  - React-Core/DevSupport (from `../node_modules/react-native/`)
   - React-Core/RCTWebSocket (from `../node_modules/react-native/`)
   - React-CoreModules (from `../node_modules/react-native/React/CoreModules`)
   - React-cxxreact (from `../node_modules/react-native/ReactCommon/cxxreact`)
@@ -580,19 +497,9 @@ DEPENDENCIES:
 SPEC REPOS:
   trunk:
     - CocoaAsyncSocket
-    - Flipper
-    - Flipper-Boost-iOSX
-    - Flipper-DoubleConversion
-    - Flipper-Fmt
-    - Flipper-Folly
-    - Flipper-Glog
-    - Flipper-PeerTalk
-    - FlipperKit
     - fmt
     - libevent
-    - OpenSSL-Universal
     - SocketRocket
-    - YogaKit
 
 EXTERNAL SOURCES:
   boost:
@@ -695,19 +602,10 @@ SPEC CHECKSUMS:
   DoubleConversion: 5189b271737e1565bdce30deb4a08d647e3f5f54
   FBLazyVector: 5d4a3b7f411219a45a6d952f77d2c0a6c9989da5
   FBReactNativeSpec: 3fc2d478e1c4b08276f9dd9128f80ec6d5d85c1f
-  Flipper: 6edb735e6c3e332975d1b17956bcc584eccf5818
-  Flipper-Boost-iOSX: fd1e2b8cbef7e662a122412d7ac5f5bea715403c
-  Flipper-DoubleConversion: 2dc99b02f658daf147069aad9dbd29d8feb06d30
-  Flipper-Fmt: 60cbdd92fc254826e61d669a5d87ef7015396a9b
-  Flipper-Folly: 584845625005ff068a6ebf41f857f468decd26b3
-  Flipper-Glog: 70c50ce58ddaf67dc35180db05f191692570f446
-  Flipper-PeerTalk: 116d8f857dc6ef55c7a5a75ea3ceaafe878aadc9
-  FlipperKit: 2efad7007d6745a3f95e4034d547be637f89d3f6
   fmt: ff9d55029c625d3757ed641535fd4a75fedc7ce9
   glog: 04b94705f318337d7ead9e6d17c019bd9b1f6b1b
   hermes-engine: 81191603c4eaa01f5e4ae5737a9efcf64756c7b2
   libevent: 4049cae6c81cdb3654a443be001fb9bdceff7913
-  OpenSSL-Universal: ebc357f1e6bc71fa463ccb2fe676756aff50e88c
   RCT-Folly: 424b8c9a7a0b9ab2886ffe9c3b041ef628fd4fb1
   RCTRequired: c0569ecc035894e4a68baecb30fe6a7ea6e399f9
   RCTTypeSafety: e90354072c21236e0bcf1699011e39acd25fea2f
@@ -749,7 +647,6 @@ SPEC CHECKSUMS:
   RNKeychain: a65256b6ca6ba6976132cc4124b238a5b13b3d9c
   SocketRocket: f32cd54efbe0f095c4d7594881e52619cfe80b17
   Yoga: 3efc43e0d48686ce2e8c60f99d4e6bd349aff981
-  YogaKit: f782866e155069a2cca2517aafea43200b01fd5a
 
 PODFILE CHECKSUM: 940323d07de591a59a2ab39fc0ef7b7d6dc89c0d
 

example/rn-setup.js

@@ -5,7 +5,7 @@ const baseCommand =
 	'rn-nodeify --install buffer,stream,assert,events,crypto,vm,process --hack';
 
 function postInstallMac() {
-	exec(`${baseCommand} && cd ios && pod install && cd ..`);
+	exec(`${baseCommand} && cd ios && NO_FLIPPER=1 pod install && cd ..`);
 }
 function postInstallLinWin() {
 	exec(baseCommand);

example/utils/helpers.ts

@@ -5,8 +5,9 @@ import {
 	IAddress,
 } from '@synonymdev/react-native-ldk';
 import { getItem, setItem } from '../ldk';
-import { EAccount } from './types';
+import { EAccount, TWallet } from './types';
 import { err, ok, Result } from './result';
+// @ts-ignore
 import { randomBytes } from 'react-native-randombytes';
 import * as bitcoin from 'bitcoinjs-lib';
 import { selectedNetwork } from './constants';
@@ -21,16 +22,16 @@ import networks from '@synonymdev/react-native-ldk/dist/utils/networks';
  * @param {string} [key]
  * @param {string} seed
  */
-export const setAccount = async ({
+export const setWallet = async ({
 	name = EAccount.name,
-	seed = randomSeed(),
-}: TAccount): Promise<boolean> => {
+	mnemonic = createMnemonic(),
+}: TWallet): Promise<boolean> => {
 	try {
-		const account: TAccount = {
+		const wallet = {
 			name,
-			seed,
+			mnemonic,
 		};
-		await Keychain.setGenericPassword(name, JSON.stringify(account), {
+		await Keychain.setGenericPassword(name, JSON.stringify(wallet), {
 			service: name,
 		});
 		await setItem(EAccount.currentAccountKey, name);
@@ -45,30 +46,37 @@ export const setAccount = async ({
  * @param {string} [accountName]
  * @returns {Promise<string>}
  */
-export const getAccount = async (accountName?: string): Promise<TAccount> => {
+export const getWallet = async (accountName?: string): Promise<TWallet> => {
 	if (!accountName) {
 		accountName = await getCurrentAccountName();
 	}
-	const defaultAccount: TAccount = {
+	const defaultWallet: TWallet = {
 		name: EAccount.name,
-		seed: randomSeed(),
+		mnemonic: createMnemonic(),
 	};
 	try {
 		let result = await Keychain.getGenericPassword({ service: accountName });
 		if (result && result?.password) {
-			// Return existing account.
-			return JSON.parse(result?.password);
+			return JSON.parse(result.password);
 		} else {
 			// Setup default account.
-			await setAccount(defaultAccount);
-			return defaultAccount;
+			await setWallet({ name: accountName, mnemonic: defaultWallet.mnemonic });
+			return defaultWallet;
 		}
 	} catch (e) {
 		console.log(e);
-		return defaultAccount;
+		return defaultWallet;
 	}
 };
 
+export const getAccount = async (accountName?: string): Promise<TAccount> => {
+	const wallet = await getWallet(accountName);
+	return {
+		name: wallet.name,
+		seed: await getLdkSeed(wallet.mnemonic),
+	};
+};
+
 /**
  * Returns current account name, if any.
  * @returns {Promise<string>}
@@ -98,20 +106,32 @@ export const createNewAccount = async (): Promise<Result<TAccount>> => {
 			}
 		}
 		const name = `wallet${num}`;
+		const mnemonic = createMnemonic();
+
 		const account: TAccount = {
 			name,
-			seed: randomSeed(),
+			seed: await getLdkSeed(mnemonic),
 		};
-		await setAccount(account);
+		await setWallet({ name, mnemonic });
 		return ok(account);
 	} catch (e) {
 		console.log(e);
 		return err(e);
 	}
 };
 
-export const randomSeed = (): string => {
-	return randomBytes(32).toString('hex');
+export const createMnemonic = (): string => {
+	return bip39.entropyToMnemonic(randomBytes(32));
+};
+
+/**
+ * Returns seed derived from mnemonic that is compatible with LDK-Node.
+ * @returns {Promise<string>}
+ */
+export const getLdkSeed = async (mnumonic: string): Promise<string> => {
+	const mnemonicSeed = await bip39.mnemonicToSeed(mnumonic);
+	const root = bip32.fromSeed(mnemonicSeed, getNetwork(selectedNetwork));
+	return root.privateKey!.toString('hex');
 };
 
 /**
@@ -191,8 +211,7 @@ export const getMnemonicPhraseFromSeed = (accountSeed: string): string => {
 export const getAddress = async (): Promise<IAddress> => {
 	const network = getNetwork(selectedNetwork);
 
-	const { seed: accountSeed } = await getAccount();
-	const mnemonic = getMnemonicPhraseFromSeed(accountSeed);
+	const { mnemonic } = await getWallet();
 	const mnemonicSeed = await bip39.mnemonicToSeed(mnemonic);
 	const root = bip32.fromSeed(mnemonicSeed, network);
 	const keyPair = root.derivePath("m/84'/1'/0'/0/0");

example/utils/types.ts

@@ -1,5 +1,10 @@
 import { TAvailableNetworks } from '@synonymdev/react-native-ldk';
 
+export type TWallet = {
+	name: string;
+	mnemonic: string;
+};
+
 export enum EAccount {
 	name = 'wallet0',
 	currentAccountKey = 'currentAccount',