由於近年來隨意型無線網路（例如：Mobile Ad Hoc Networks）的發展及成長快速為人們帶來了許多的便利性，但是大多缺乏了相對應的網路安全機制，導致資料有外洩的危險，因此我們以此為動機發展了利用ID-based bilinear pairing運算技術的安全協商金鑰產生程序來達到NTDR（Near-Term Digital Radio networks）網路環境中的通訊安全。 基於NTDR的網路環境是將無線網路中節點（nodes）來做分群的叢聚型（cluster based）無線網路中的一種，因此適合在範圍大的無線環境中運作。在本研究中，我們所提出的方法不僅可以適用在大範圍的無線網路環境中，並且適合兩個節點間的安全通訊。最後，我們更進一步的將上述的研究方法做進一步的研究，進而發展出另一套以ID-based bilinear pairing運算技術為基礎的智慧卡安全認證機制。 Near-Term Digital Radio (NTDR) network is a kind of mobile ad hoc network (MANET) in which mobile nodes are assigned into different clusters. Therefore, it can let the nodes to communicate with each other efficiently in a large area. Despite several NTDR protocols have been proposed, there still lacks an efficient secure one. Accordingly, in this paper, we propose a new method based on ID-based bilinear pairings to overcome the unsolved security problems nowadays. After our analysis, we conclude that our scheme is the first protocol for NTDR network that is not only secure but also very efficient. We also propose the authentication scheme for smart card system and show that the traditional smart card authentication techniques inevitably suffer the parallel session attack. Henceforth, we propose a novel scheme based on ID-based bilinear pairing which not only can avoid this attack.
