基本信息:
- 专利标题： 信息处理设备、系统、方法和程序，以及信息存储设备
- 专利标题（英）：Information processing apparatus, information storage apparatus, information processing system, and information processing method and program
- 申请号：CN201210448877.8 申请日：2012-11-09
- 公开(公告)号：CN103220143A 公开(公告)日：2013-07-24
- 发明人： 小林义行 , 久野浩 , 林隆道
- 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： 北京集佳知识产权代理有限公司
- 代理人： 康建峰; 贾萌
- 优先权： 2011-251733 2011.11.17 JP
- 主分类号： H04L9/32
- IPC分类号： H04L9/32
An information processing apparatus includes a data processing unit which executes processing for decoding and reproducing encrypted content. The data processing unit executes processing for determining whether the content can be reproduced by applying an encrypted content signature file. The encrypted content signature file stores information on issue date of the encrypted content signature file and an encrypted content signature issuer certificate with a public key of an encrypted content signature issuer. In determining whether the content can be reproduced, the data processing unit compares expiration date of the encrypted content signature issuer certificate with the information on issue date of the encrypted content signature file, and does not perform processing for decoding and reproducing the encrypted content when the expiration date is before the issue date, and performs the processing for decoding and reproducing the encrypted content only when the expiration date is not before the issue date.
IPC结构图谱:
| H | 电学 |
| --H04 | 电通信技术 |
| ----H04L | 数字信息的传输，例如电报通信 |
| ------H04L9/00 | 保密或安全通信装置 |
| --------H04L9/32 | .包括用于检验系统用户的身份或凭据的装置 |