| 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player (120) wants to access the content, a secure processor (111) on the medium verifies (202) that the player has not been revoked, preferably by comparing an identity of the player with identities in a revocation list (113), after which a mutual authentication is performed (204).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. |
