发明名称 METHOD FOR MANAGING COPY PROTECTION INFORMATION OF RECORDING MEDIUM
摘要 A method, apparatus and storage medium for managing copy protection information are discussed. According to an embodiment, there is provided a method for managing copy protection information. The method includes reading copy protection information used for decrypting encrypted data, the copy protection information to be decrypted using a combination key which is a combination of a first and a second key, decrypting the copy protection information using the combination key, and decrypting the encrypted data using the copy protection information, wherein the first key is a private code and the second key is managed in a device.
申请公布号 US2008175389(A1) 申请公布日期 2008.07.24
申请号 US20080055065 申请日期 2008.03.25
申请人 KIM BYUNG JIN;KIM HYUNG SUN 发明人 KIM BYUNG JIN;KIM HYUNG SUN
分类号 G11B7/007;H04L9/06;G06F;G11B7/004;G11B7/005;G11B19/12 主分类号 G11B7/007
代理机构 代理人
主权项
地址