在物聯網環境中以安全水準協議與輕量安全機制提高服務安全性

隨著資訊技術不斷演進，以及網路通訊技術的日漸成熟，一個以未來網路的新概念應用於具有感測、網路及運算功能進而發展成智能物件，使物件與物件能進行資料傳遞，形成新興的網路環境，稱之為物聯網（Internet of Things; IoT）。物聯網意指物與物之間互聯的網路，互聯是透過將感測器或無線射頻辨識標籤裝置於載體上，以通訊技術支持載體之間能夠傳遞感測資訊，達成物體智慧化自動控制等應用功能的實現。在物聯網環境下，不僅存在過去網路環境的組件，更加入智能物件，因此將形成數以億計的資料量。然而，龐大的資料量將造成感知層高計算的成本。因此，本研究在感知層使用安全水準協議的概念來降低計算的成本，並在中介層與感知層之間以數位簽章的概念提出輕量安全機制，經由中介層讓感知層內感測節點的身分具有可驗證性與不可否認性，進而提升物聯網的安全性。

Currently, information technology is developing rapidly, and resulting in the vigorous development of the network technology. The new concept of the future network is applied to the smart objects which have sensing, networking and computing abilities, and the ability to transfer data between the objects; the novel network environment is called the Internet of Things (IoT). The IoT is the interconnection between things in a network. The sensors or RFID tag is embedded into an equipment to support the transformation of sensor information between the carriers by the communication technology, then the smart automatic control and applications can be provided. However, the huge amount of data that will result high computational cost in the perception layer. Therefore, in this study, the security level agreements are used to reduce the cost of computing in the perception layer. In addition, a framework of middleware layer is proposed to solve the problem, through data filtering and integration to draw meaningful information. However, the digital signature is used to establish a lightweight security mechanism between the application and the perception layer. Through the framework of the middleware layer, the identity of the application and the perception layer will have a verification and non-repudiation, and the security of the IoT can be obtained.