隨著資訊的進步，未來電腦的演進將會建構出一個無所不在的運算環境，稱之為普及運算(Pervasive Computing)，我們生活上的每一個設備都將是一個計算裝置，讓我們可以在任何時間 (Anytime)、任何地點 (Anywhere) 以任何裝置 (Any Devices) 取得任何所需要的資訊與服務，當我們週遭充斥著數百甚至數千種服務者 (Service)，為了尋找所需要的服務，服務探索協定 (Service Discovery Protocol) 在普及運算的環境裡被廣泛使用。

然而有些情況下，會希望可以秘密地暗中探索服務，本論文提出且稱這類服務探索協定為隱性型服務探索協定 (Clandestine Service Discovery Protocol)，且本論文定義隱性型服務探索協定之安全需求，包含：交互認證 (Mutual Authentication)、實體匿名性 (Entity Anonymity)、訊息機密性 (Communication Confidentiality)、位置隱私 (Location Privacy)，同時提出數個秘密服務探索協定。

Service discovery protocols, while currently under development in both industry and academia, have been widely adopted in pervasive computing environments. However, service discovery should in many cases be performed behind closed doors. Such protocols are called clandestine service discovery protocols. This study defines the requirements for clandestine service discovery, namely mutual authentication, entity anonymity, communication confidentiality and location privacy, and develops several clandestine service discovery protocols.

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