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公开(公告)号:US20060277415A1
公开(公告)日:2006-12-07
申请号:US10570542
申请日:2004-08-27
IPC分类号: H04L9/32 , H04L9/00 , G06F12/14 , G06F17/30 , G06F7/04 , G06F11/30 , G06K9/00 , H03M1/68 , H04K1/00 , H04N7/16
CPC分类号: G06F21/10 , G06F2221/0753 , G06F2221/2115 , G11B20/00086 , G11B20/00253 , G11B20/00369 , G11B20/00492
摘要: The present invention relates to a content protection method and system as well as to a reproduction method and device providing copy protection of electronic content. In order to provide protection against illicit copying by consumers as well as by authoring and formatting facilities content-dependent encryption of the content is proposed. In an encryption step the content (C0) is encrypted using an application key (AK) and/or a disc key (DK). Further, a content-dependent content mark (AK′, H, MAC) is generated using said content (C0), which content mark is to be evaluated during decryption of said encrypted content (C2).
摘要翻译: 本发明涉及一种内容保护方法和系统,以及提供电子内容的复制保护的再现方法和装置。 为了提供消费者非法复制的保护,以及创作和格式化设施,提出内容相关内容的加密。 在加密步骤中,使用应用密钥(AK)和/或盘密钥(DK)对内容(C 0)进行加密。 此外,使用所述内容(C 0)生成内容相关内容标记(AK',H,MAC),该内容标记将在解密所述加密内容(C 2)期间被评估。