文章基本信息

标题：一方向性ハッシュ関数を用いたディジタル動画像の効果的アクセス制御方式
本地全文：下载
作者：今泉祥子 ; 阿部淑人 ; 藤吉正明等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2010
卷号：64
期号：11
页码：1621-1627
DOI：10.3169/itej.64.1621
出版社：The Institute of Image Information and Television Engineers
摘要：We describe an efficient access control method for digital videos that controls access to video frames based on one-way hash functions. The method offers effective key management and delivery as well as conventional scalability-aware access control methods for coded still images. It uses hash chain-based key generation, thereby limiting the number of managed keys to one, and the user receives only one key as well. This method controls access to a video sequence based on frame rates, and it is applicable to access control of videos based on movie ratings. For access control with two controlled subjects, our method reduces the number of keys to the theoretical lower limit.
关键词：動画像;アクセス制御;鍵生成;ハッシュ関数;階層性;フレームレート