Internet of Things (IoT) refers to a vast network that provides an interconnection between various objects and intelligent devices. The three important components of IoT are sensing, processing, and transmission of data. Nowadays, the new IoT technology is used in many different sectors, including the domestic, healthcare, telecommunications, environment, industry, construction, water management, and energy. IoT technology, involving the usage of embedded devices, differs from computers, laptops, and mobile devices. Due to exchanging personal data generated by sensors and the possibility of combining both real and virtual worlds, security is becoming crucial for IoT systems. Furthermore, IoT requires lightweight encryption techniques. Therefore, the goal of this paper is to identify the security challenges and key issues that are likely to arise in the IoT environment in order to guide authentication techniques to achieve a secure IoT service.

中文翻译：

---

物联网安全：挑战和关键问题

物联网 (IoT) 是指提供各种对象和智能设备之间互连的庞大网络。物联网的三个重要组成部分是数据的传感、处理和传输。如今，新的物联网技术被用于许多不同的领域，包括家庭、医疗保健、电信、环境、工业、建筑、水管理和能源。物联网技术涉及嵌入式设备的使用，不同于计算机、笔记本电脑和移动设备。由于交换传感器生成的个人数据以及结合现实和虚拟世界的可能性，安全性对于物联网系统变得至关重要。此外，物联网需要轻量级加密技术。所以，