SMS发售训练车票
Selling train tickets by SMS
摘要：
在过去的十年里，出售训练车票已经从在火车站排队，发展到在网上买票并打印出来。这两种替代方案仍然是可行的选择，尽管它们耗时或需要打印设备。如今，提供尽可能快速和高效的服务至关重要：移动电话为提供信息和传输数据提供了一种方便、廉价和广泛可用的工具。本项目的目标是设计一个包含在SMS消息中的训练车票。虽然有几个与该项目相关的挑战，但主要的挑战是安全性以及我们如何对包含160个字符的训练票进行数字签名。该项目中提供的解决方案是MOVA签名（来自发明者Monnerat和VAudenay的名字）的实现，该签名使用交互式验证，因此允许20位（大约4个字符）的签名。
英文摘要：
Selling train tickets has evolved in the last ten years from queuing in the railway station, to buying tickets on the internet and printing them. Both alternatives are still viable options, though they are time consuming or need printing devices. Nowadays it is essential to offer a service that is as fast and efficient as possible: mobile phones provide an accessible, affordable and widely available tool for supplying information and transferring data. The goal of this project is to design a train ticket contained in a SMS message. While there are several challenges related to the project, the main one is the security and how we can digitally sign a train ticket that is contained in 160 characters. The solution offered in this project is the implementation of the MOVA Signature (from the name of the inventors MOnnerat and VAudenay) that uses an interactive verification and therefore allows signature of 20 bits (roughly 4 characters).
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
