Invention Grant
US08645710B2 Information processing apparatus, information storage medium, content management system, data processing method, and computer program 有权
信息处理装置,信息存储介质,内容管理系统,数据处理方法和计算机程序

Information processing apparatus, information storage medium, content management system, data processing method, and computer program
Abstract:
A configuration for achieving efficient content verification processing based on hash values is provided. Hash values of hash units set as segmented data of a content stored on an information storage medium are recorded in a content hash table and are stored on the information storage medium together with the content. An information processing apparatus for executing content playback executes hash-value comparison processing based on one or more randomly selected hash values. Regardless of the data amount of content, the configuration can perform hash-value determination and comparison processing based on hash units having a small amount of data, so that user equipment for executing content playback can perform efficient content verification.
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