車載隨意網路(VANET)是基於無線傳輸技術進步所推衍發展的網路，其為以車輛及基地台構成的新型態的無線網路，主要可將其應用在確保行車安全，並改善交通狀況等方面，但因通訊都是透過無線傳輸，使得惡意第三者可以輕易的取得或竄改網路中傳輸的資訊，因此產生了保護車輛隱私與確保資料完整性的相關安全議題。為了保護使用者的隱私，目前雖有一些相關研究提出保護車輛的隱私的技術，但都沒辦法提供完善的車輛隱私保護方案，因此本篇論文提出基於身份識別為基礎的加解密系統(Identity-Based Encryption, IBE)的車載隨意網路隱私保護技術以保護駕駛者的隱私，並在不同的通訊模式中提供適當的安全需求。 Vehicular ad hoc network (VANET) is a newly-developed wireless network which is established on vehicles and base stations. Vehicles can quickly send message to other vehicles or base stations via wireless communication. Through the features, VANET can be easily applied to traffic safety and traffic improvements. However, the data transmission in VANET all via wireless transmission, so the adversary can capture messages from networks easily. Therefore, the message or the traces sent out by vehicles would be stolen by malicious persons easily. To protect users’ privacy, there already exists several researches focus on protecting vehicle’s privacy. But, these researches cannot provide complete privacy protection or complete communication models. Therefore, this paper issues a brand new VANET privacy protection technique which based on the Identity-Based Encryption (IBE) to protect drives’ privacy on VANET, and simultaneously to reach the security requirements in communication.
