发明名称 Protecting decrypted compressed content and decrypted decompressed content at a digital rights management client
摘要 Theft of decompressed digital content as the content is being rendered is prevented. A requested slow-down of the rendering of the content is detected. Transfers of relatively large amounts of data are detected. A re-compressor-based requested slow-down of the rendering of the content is detected. A re-compressor re-compressing the content is detected. In each situation, the detected activity is presumably initiated by a content thief attempting to steal the content. In each situation, the detected activity is responded to in a manner designed to frustrate the presumed attempt of the content thief to steal the content.
申请公布号 US2005244008(A1) 申请公布日期 2005.11.03
申请号 US20050176661 申请日期 2005.07.07
申请人 MICROSOFT CORPORATION 发明人 ENGLAND PAUL;PEINADO MARCUS;SANKARANARAYAN MUKUND
分类号 G06F21/00;(IPC1-7):G06F17/60;H04K1/00;H04L9/00 主分类号 G06F21/00
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