| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a key of a scramble system and scramble release on content from being exposed when a reproducing program executed in a CPU of an information processor is traced during execution. <P>SOLUTION: The computer processor is provided with a means for separating process of the scramble release of the content which is conventionally conducted by a reproducing program and the key for the scramble release from the reproducing program, and separating from an arithmetic processing unit for executing the reproducing program, receiving the encrypted reproducing program and content from an external and decoding respectively, and loading the reproducing program and content in plain text on the arithmetic processing unit. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
