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公开(公告)号:EP1684287A1
公开(公告)日:2006-07-26
申请号:EP05111853.7
申请日:2005-12-08
发明人: DIEHL, ERIC , DURAND, ALAIN
CPC分类号: H04N5/913 , G11B20/00086 , G11B20/0021 , G11B20/00246 , G11B20/10 , G11B2220/213 , G11B2220/2537 , H04N21/25816 , H04N21/2585 , H04N21/4405 , H04N2005/91364
摘要: A secure pre-recorded medium (110) and a method for descrambling encrypted content (114) thereon. When a player (120) wants to access the content, a secure processor (111) on the medium verifies (202) that the player has not been revoked, preferably by comparing an identity of the player with identities in a revocation list (113), after which a mutual authentication is performed (204). The secure processor then verifies (205) that the player has the rights to access the content and provides (206, 207) the player with the key necessary to descramble the content, whereafter the player descrambles (208) the content.
摘要翻译: 一种安全的预先记录媒体(110)及其上加密内容(114)的解扰方法。 当玩家(120)想要访问内容时,媒体上的安全处理器(111)验证(202)玩家尚未被撤销,优选地通过将玩家的身份与撤销列表(113)中的身份进行比较, 之后进行相互认证(204)。 然后,安全处理器验证(205)播放器具有访问内容的权限,并向玩家提供解扰内容所必需的密钥(206,207),之后播放器解扰(208)内容。