Merge pull request #40 from tkey/tkey-mpc-ios-sfa

tKey MPC iOS with SFA

tkey-mpc-ios/tkey-ios-mpc/Assets.xcassets/AccentColor.colorset/Contents.json

@@ -0,0 +1,11 @@
+{
+  "colors" : [
+    {
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

tkey-mpc-ios/tkey-ios-mpc/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,13 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "platform" : "ios",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

tkey-mpc-ios/tkey-ios-mpc/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

tkey-mpc-ios/tkey-ios-mpc/GoogleService-Info.plist

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CLIENT_ID</key>
+	<string>461819774167-r1e9u2gp802tlkro6j3j09eeinh4ptmp.apps.googleusercontent.com</string>
+	<key>REVERSED_CLIENT_ID</key>
+	<string>com.googleusercontent.apps.461819774167-r1e9u2gp802tlkro6j3j09eeinh4ptmp</string>
+	<key>ANDROID_CLIENT_ID</key>
+	<string>461819774167-93iair46nluf28pdbpmqq65eqktdbb7g.apps.googleusercontent.com</string>
+	<key>API_KEY</key>
+	<string>AIzaSyAttkINEO4AWRc2jJDHa5fPYp_1EtujcH0</string>
+	<key>GCM_SENDER_ID</key>
+	<string>461819774167</string>
+	<key>PLIST_VERSION</key>
+	<string>1</string>
+	<key>BUNDLE_ID</key>
+	<string>com.w3a.tkey-ios-mpc</string>
+	<key>PROJECT_ID</key>
+	<string>web3auth-oauth-logins</string>
+	<key>STORAGE_BUCKET</key>
+	<string>web3auth-oauth-logins.appspot.com</string>
+	<key>IS_ADS_ENABLED</key>
+	<false></false>
+	<key>IS_ANALYTICS_ENABLED</key>
+	<false></false>
+	<key>IS_APPINVITE_ENABLED</key>
+	<true></true>
+	<key>IS_GCM_ENABLED</key>
+	<true></true>
+	<key>IS_SIGNIN_ENABLED</key>
+	<true></true>
+	<key>GOOGLE_APP_ID</key>
+	<string>1:461819774167:ios:6b838a8ee53c76d55b9c92</string>
+	<key>DATABASE_URL</key>
+	<string>https://web3auth-oauth-logins-default-rtdb.asia-southeast1.firebasedatabase.app</string>
+</dict>
+</plist>

tkey-mpc-ios/tkey-ios-mpc/Helpers/EthereumClient.swift

@@ -0,0 +1,72 @@
+//
+//  EthereumClient.swift
+//  tkey-ios-mpc
+//
+//  Created by Ayush B on 27/03/24.
+//
+
+import Foundation
+import web3
+import BigInt
+import Web3SwiftMpcProvider
+
+struct EthereumClient {
+    let web3Client: EthereumHttpClient!
+    var networkId: String = "11155111"
+
+    init() {
+        self.web3Client = EthereumHttpClient(
+            url: URL(string: "https://1rpc.io/sepolia")!,
+            network: .fromString(networkId)
+        )
+    }
+
+    func getNonce(address: EthereumAddress) async throws -> Int{
+        do {
+           let nonce = try await web3Client.eth_getTransactionCount(
+                address: address, block: .Latest
+            )
+            return nonce + 1
+        } catch let error {
+            throw error
+        }
+    }
+
+    func getGasPrice() async throws -> BigUInt {
+        do {
+            let gasPrice = try await web3Client.eth_gasPrice()
+            return gasPrice
+        } catch let error {
+            throw error
+        }
+    }
+
+    func getGasLimit(transaction: EthereumTransaction) async throws -> BigUInt {
+        do {
+            let gasLimit = try await web3Client.eth_estimateGas(transaction)
+            return gasLimit
+        } catch let error {
+            throw error
+        }
+    }
+
+    func sendRawTransaction(
+        transaction: EthereumTransaction,
+        ethTssAccount: EthereumTssAccount
+    ) async throws -> String {
+        do {
+            let hash = try await web3Client.eth_sendRawTransaction(
+                transaction,
+                withAccount: ethTssAccount
+            )
+
+            return hash
+        } catch let error {
+            throw error
+        }
+    }
+
+    func getChainId() -> String {
+        return networkId
+    }
+}

tkey-mpc-ios/tkey-ios-mpc/Helpers/KeyChainInterface.swift

@@ -0,0 +1,78 @@
+//
+//  KeyChainInterface.swift
+//  tkey-ios-mpc
+//
+//  Created by Ayush B on 23/03/24.
+//
+
+import Foundation
+import Security
+
+public class KeychainInterface {
+    // Note: This class is provided for example purposes only,
+    //      it is not intended to be used in a production environment.
+
+    public enum KeychainError: Error {
+        case itemNotFound
+        case invalidItemFormat
+        case unexpectedStatus(OSStatus)
+    }
+
+    // TODO: add delete function
+
+    public static func save(item: String, key: String, identifier: String = "web3auth.tkey-ios") throws {
+        let query: [String: AnyObject] = [
+            kSecAttrService as String: identifier as AnyObject,
+            kSecAttrAccount as String: key as AnyObject,
+            kSecClass as String: kSecClassGenericPassword,
+            kSecValueData as String: item.data(using: .utf8)! as AnyObject
+        ]
+
+        // First delete item if found
+        var status = SecItemDelete(query as CFDictionary)
+
+        guard status == errSecSuccess || status == errSecItemNotFound else {
+            throw KeychainError.unexpectedStatus(status)
+        }
+
+        // Add new item
+        status = SecItemAdd(
+            query as CFDictionary,
+            nil
+        )
+
+        guard status == errSecSuccess else {
+            throw KeychainError.unexpectedStatus(status)
+        }
+    }
+
+    public static func fetch(key: String, identifier: String = "web3auth.tkey-ios") throws -> String {
+        let query: [String: AnyObject] = [
+            kSecAttrService as String: identifier as AnyObject,
+            kSecAttrAccount as String: key as AnyObject,
+            kSecClass as String: kSecClassGenericPassword,
+            kSecMatchLimit as String: kSecMatchLimitOne,
+            kSecReturnData as String: kCFBooleanTrue
+        ]
+
+        var itemCopy: AnyObject?
+        let status = SecItemCopyMatching(
+            query as CFDictionary,
+            &itemCopy
+        )
+
+        guard status != errSecItemNotFound else {
+            throw KeychainError.itemNotFound
+        }
+
+        guard status == errSecSuccess else {
+            throw KeychainError.unexpectedStatus(status)
+        }
+
+        guard let item = itemCopy as? Data else {
+            throw KeychainError.invalidItemFormat
+        }
+
+        return  String(decoding: item, as: UTF8.self)
+    }
+}

tkey-mpc-ios/tkey-ios-mpc/Info.plist

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.googleusercontent.apps.461819774167-r1e9u2gp802tlkro6j3j09eeinh4ptmp</string>
+			</array>
+		</dict>
+	</array>
+</dict>
+</plist>

tkey-mpc-ios/tkey-ios-mpc/Preview Content/Preview Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}