| 摘要 |
A method of generating cryptographically protected digital data encoding content and arranged intomessages each message being decodable by a decoder application on a client terminal having a service interface to assemble each message for the decoder application, includes:retrieving a message from a machine-readable medium; encrypting at least part of the message; andprovidi ng the encrypted messages as output in a format enabling a server service interface to arrange the message into at least one packet including at least one header and a payload, each payload including at least part of the messag e, at least one header including information enablingthe service interface on t he client to assemble each message for the decoder application from thepayload of the packets. The method comprises separating each message into a first and a t least one further message section. At least one of the message sections is encrypted in such a way asto be decryptable independently of the other messa ge sections. The encrypted message is assembled by adding a resynchronisation marker, separating a message section from an adjacentmessage section and including explicit synchronisation information, to at least the further messagesections.
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