@techreport{oai:ipsj.ixsq.nii.ac.jp:00045866,
 author = {清本, 晋作 and 田中, 俊昭 and 中尾, 康二 and 児島, 史秀 and 佐藤, 勝善 and 藤瀬, 雅行 and Shinsaku, Kiyomoto and Toshiaki, Tanaka and Koji, Nakao and Fumihide, Kojima and Katsuyoshi, Sato and Masayuki, Fujise},
 issue = {109(2001-ITS-007)},
 month = {Nov},
 note = {近年、ITSにおける主要な通信技術であるＤＳＲＣについて、その特徴を生かしたアプリケーション構築に関する研究が進められてきている。今回、我々は、そのようなアプリケーションの１つである「マルチメディアコンテンツの予約・配信サービス（ＲＤＳ）」におけるセキュリティアーキテクチャについて検討を行ったので報告する。特に、利用者とＲＤＳとの認証処理に着目し、簡易でかつ安全性の保証された認証プロトコルの設計を行なった。, Since DSRC is one of the promising mobile platforms in ITS, several applications have been recently studied and discussed on top of the DSRC. In this paper, we propose and design security protocols for ITS Reservation and Downloading services in DSRC. In our proposed concept, a strict authentication is carried out in the reservation protocols, RDS issues a reservation ticket as an evidence of authentication, and a simple authentication based on the shared ticket is performed in the downloading protocol. These authentication protocols are lightweight, because authentication mechanism is mainly composed of hash functions. Our mechanism would also be scalable with respect to the number of users, because reservation server is not necessary to manage users' information such as user IDs or user keys.},
 title = {Proposal and Design of Secure Protocols for ITS Reservation and Downloading Services},
 year = {2001}
}