Basic recording functionality

notetaker/KeychainHelper.swift

@@ -0,0 +1,42 @@
+// KeychainHelper.swift
+// Helper for secure storage
+
+import Foundation
+import Security
+
+class KeychainHelper {
+    static let shared = KeychainHelper()
+    
+    private init() {}
+    
+    func save(_ value: String, forKey key: String) -> Bool {
+        guard let data = value.data(using: .utf8) else { return false }
+        
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrAccount as String: key,
+            kSecValueData as String: data,
+            kSecAttrService as String: "owen.notetaker" // Replace with your bundle ID
+        ]
+        
+        SecItemDelete(query as CFDictionary) // Delete if exists
+        let status = SecItemAdd(query as CFDictionary, nil)
+        return status == errSecSuccess
+    }
+    
+    func get(forKey key: String) -> String? {
+        let query: [String: Any] = [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrAccount as String: key,
+            kSecAttrService as String: "owen.notetaker",
+            kSecMatchLimit as String: kSecMatchLimitOne,
+            kSecReturnData as String: true
+        ]
+        
+        var item: AnyObject?
+        let status = SecItemCopyMatching(query as CFDictionary, &item)
+        
+        guard status == errSecSuccess, let data = item as? Data else { return nil }
+        return String(data: data, encoding: .utf8)
+    }
+}