发明授权
US09152770B2 Content reproduction system, information processing terminal, media server, secure device, and server secure device 有权
内容再现系统,信息处理终端,媒体服务器,安全装置和服务器安全装置

Content reproduction system, information processing terminal, media server, secure device, and server secure device
摘要:
A content reproduction system includes an information processing terminal and a secure device. The information processing terminal receives a copyright protection application program from an application distribution server. The copyright protection application program includes a first program having a first execution format executable in the information processing terminal and a second program having a second execution format different from the first execution format and executable in the secure device. The second program is encrypted with a program key held in the secure device. By extracting and executing the first program, the information processing terminal extracts the second program and transmits the second program to the secure device. The secure device receives the second program from the information processing terminal, decrypts the second program using a program key stored in a key storing unit, and executes the second program.
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