INFORMATION PROCESSING DEVICE, AND INFORMATION PRO

专利名称：INFORMATION PROCESSING DEVICE, AND

INFORMATION PROCESSING METHOD, ANDPROGRAM

发明人：KENJIRO UEDA,TATEO OISHI申请号：US15751996申请日：20160819

公开号：US20180239879A1公开日：20180823

专利附图：

摘要：A configuration in which usage control that is substantially similar to contentusage control in a copy source medium can be performed in a content copy destination is

implemented. A data processing unit that performs a copy process of recording datarecorded on a first medium on a second medium records encrypted content in the firstmedium on the second medium, without decrypting the encrypted content. In addition,the data processing unit converts a CPS unit key file recorded on the first medium togenerate a converted CPS unit key file and records the converted CPS unit key file on thesecond medium. Further, the data processing unit acquires an MKB not requiring KCD,which is capable of directly calculating a media key using only a device key, without usingkey conversion data (KCD) recorded on the first medium, from a server and records theMKB not requiring KCD on the second medium.

申请人：SONY CORPORATION

地址：TOKYO JP

国籍：JP

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