由於電子收費系統(Electronic toll collection)在智慧型運輸系統(Intelligent Transport System)上的運用，讓駕駛人在支付通行費上更加地方便。本論文提出一個在智慧型運輸系統中有效率的電子收費機制，方法是基於單向雜湊函數(One-way hash function)與智慧卡(Smart card)完成收費的機制，並能在車子行經入口處與出口處時提供雙向鑑別(Mutual authentication)的功能。在方法中，每一個站可以同時為多位使用者提供服務並且不需要全球衛星定位系統(Global Position System, GPS)的支援。本論文所提出的方法比其他方法更有效率。 Thanks to the rapid development recently in intelligent transport systems (ITS), especially in electronic toll collection (ETC), it has become easier for people to do electronic non-stop transactions at the lanes. This paper proposes an efficient electronic toll collection protocol for intelligent transport system. The proposed protocol, based on one-way hash functions and smart cards, provides mutual authentication when the user enters and exits the superhighway for toll collection. Each station in the protocol can handle many users at one time. The protocol works without the help of GPS. The proposed protocol is more efficient than any others.
