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swift save password to keychain
“swift save password to keychain” Code Answer
swift save password to keychain
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on Mar 09 2020
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class KeyChain { class func save(key: String, data: Data) -> OSStatus { let query = [ kSecClass as String : kSecClassGenericPassword as String, kSecAttrAccount as String : key, kSecValueData as String : data ] as [String : Any] SecItemDelete(query as CFDictionary) return SecItemAdd(query as CFDictionary, nil) } class func load(key: String) -> Data? { let query = [ kSecClass as String : kSecClassGenericPassword, kSecAttrAccount as String : key, kSecReturnData as String : kCFBooleanTrue!, kSecMatchLimit as String : kSecMatchLimitOne ] as [String : Any] var dataTypeRef: AnyObject? = nil let status: OSStatus = SecItemCopyMatching(query as CFDictionary, &dataTypeRef) if status == noErr { return dataTypeRef as! Data? } else { return nil } } class func createUniqueID() -> String { let uuid: CFUUID = CFUUIDCreate(nil) let cfStr: CFString = CFUUIDCreateString(nil, uuid) let swiftString: String = cfStr as String return swiftString } } extension Data { init<T>(from value: T) { var value = value self.init(buffer: UnsafeBufferPointer(start: &value, count: 1)) } func to<T>(type: T.Type) -> T { return self.withUnsafeBytes { $0.load(as: T.self) } } } // Example usage: let int: Int = 555 let data = Data(from: int) let status = KeyChain.save(key: "MyNumber", data: data) print("status: ", status) if let receivedData = KeyChain.load(key: "MyNumber") { let result = receivedData.to(type: Int.self) print("result: ", result) }
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