基本信息:
- 专利标题： 信息处理设备、信息存储设备、服务器、信息处理系统、信息处理方法以及程序
- 专利标题（英）：Information processing device, information storage device, server, information processing system, information processing method, and program
- 申请号：CN201380003539.6 申请日：2013-06-26
- 公开(公告)号：CN103947151A 公开(公告)日：2014-07-23
- 发明人： 久野浩 , 小林义行 , 林隆道 , 村松克美
- 申请人： 索尼公司
- 申请人地址： 日本东京都
- 专利权人： 索尼公司
- 当前专利权人： 索尼公司
- 当前专利权人地址： 日本东京都
- 代理机构： 北京市柳沈律师事务所
- 代理人： 张贵东
- 优先权： 2012-185631 2012.08.24 JP
- 国际申请： PCT/JP2013/067457 2013.06.26
- 国际公布： WO2014/030427 JA 2014.02.27
- 进入国家日期： 2014-04-17
- 主分类号： H04L9/08
- IPC分类号： H04L9/08 ; H04N5/91 ; H04N21/835
The purpose of the invention is to achieve content usage control based on permission through user authentication without communicating with a server or the like. An information storage device such as a memory card stores encrypted content, a converted title key obtained by converting a title key which is an encryption key, and a user token obtained by converting confidential bind information applied to calculate the title key from the converted title key. A reproduction device for decrypting and reproducing the encrypted content acquires the converted title key and the user token and generates an authentication key on the basis of user identification information such as a user ID. In addition, the reproduction device calculates the confidential bind information through computation using the user token and the authentication key, applies the calculated confidential bind information to calculate the title key from the converted title key, and applies the calculated title key to decrypt the encrypted content.