| http://www.w3.org/ns/prov#value | - The content information contains the encrypted content, and is formed of a file in which the content data Enc(Kc, Content) encrypted using a content key Kc, the data Enc(Kroot, Kc) formed by encrypting the content key Kc using a root key Kroot, the EKB for obtaining the root key Kroot, and information, such as the preview flag data and the service ID, shown in FIG. 17(c), are added. [0195] The cli
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