(EN)
Methods and apparatus permit: reading a rewritable storage medium (102), the rewritable storage medium (102) including digital content (104) and a flag (106) indicative of whether the digital content (104) is encrypted; determining whether the digital content (104) of the rewritable storage medium (102) is encrypted based on the flag (106); encrypting the digital content (102) of the rewritable storage medium (102) using an identification (ID) number (128) as an encryption key when the flag (106) indicates that the digital content (104) is not encrypted, the ID number being unique to a processing apparatus (120) operable to execute the digital content (104); and overwriting the digital content (104) of the rewritable storage medium (102) with the encrypted digital content.
(ZH) 本发明的方法和装置允许：读取可重写存储介质(102)，所述可重写存储介质(102)包括数字内容(104)和指出该数字内容(104)是否被加密的标志(106)；基于所述标志(106)确定可重写存储介质(102)的数字内容(104)是否被加密；当所述标志(106)指出数字内容(104)未被加密时，使用识别(ID)号(128)作为加密密钥对可重写存储介质(102)的数字内容(102)进行加密，所述ID号对于用于执行该数字内容(104)的处理装置(120)是唯一的；以所述加密的数字内容重写所述可重写存储介质(102)的数字内容(104)。
