公开(公告)号：US20130232337A1

公开(公告)日：2013-09-05

申请号：US13779657

申请日：2013-02-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung-Min LEE ,  Hyeok-Chan KWON ,  DONG-IL SEO ,  Sok-Joon LEE ,  Yong-Hyuk MOON

IPC: H04L9/32

CPC classification number: H04L9/3263 ,  G06F21/10 ,  H04L9/0822 ,  H04L2209/603 ,  H04N21/25816 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/6334 ,  H04N21/8193 ,  H04N21/8355

Abstract: Disclosed herein are a user terminal and method for playing DRM content. The user terminal includes a common security platform. The common security platform includes a DRM application management unit and a security management unit. The DRM application management unit stores and executes a DRM application that requests authentication from a license server and receives a license, including a decryption key for decrypting encrypted DRM content. The DRM application is an application in a downloadable form. The security management unit decrypts the encrypted DRM content, provided by a content providing server, using the decryption key included in the license issued via the DRM application.

Abstract translation: 这里公开了用于播放DRM内容的用户终端和方法。 用户终端包括公共安全平台。 公共安全平台包括DRM应用管理单元和安全管理单元。 DRM应用管理单元存储和执行从许可证服务器请求认证并接收许可证的DRM应用，包括用于解密加密的DRM内容的解密密钥。 DRM应用程序是可下载形式的应用程序。 安全管理部使用通过DRM应用发行的许可证中包含的解密密钥来解密由内容提供服务器提供的加密的DRM内容。