METHOD AND APPARATUS FOR PROVIDING AND RECEIVING CONDITIONALLY-ACCESSED VARIOUS APPLICATION INFORMATION
First Claim
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1. A method for encoding information, comprising:
- encrypting application information that is to be provided through an application service;
creating a first service component frame including identification information of the application service and control data used for encryption of the application information and creating a second service component frame including the encrypted application information; and
organizing a data frame including the first service component frame and the second component frame.
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Abstract
The present invention provides various types of encrypted application information. An encoding method according to the present invention encrypts application information to be provided through an application service, creates a first service component frame including an ID of the application service and control data used for encryption of the application information, creates a second service component frame including the encrypted application information, organizes a data frame with the created first and second service component frames, and transmits the organized data frame.
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Citations
22 Claims
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1. A method for encoding information, comprising:
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encrypting application information that is to be provided through an application service; creating a first service component frame including identification information of the application service and control data used for encryption of the application information and creating a second service component frame including the encrypted application information; and organizing a data frame including the first service component frame and the second component frame. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for providing information for a user, comprising:
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extracting a data frame from received signals; extracting from the extracted data frame a first service component frame including information necessary for using information service, and extracting from the extracted first service component frame identification information of an application service and decryption-related control data; and extracting from the extracted data frame a second service component frame including information of an application service identified by the identification information, and decrypting data of the extracted second service component frame based on the decryption-related control data. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A terminal apparatus of receiving information, comprising:
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a demodulator configured to demodulate received signals to output a data frame; a decoder configured to extract from the outputted data frame a first service component frame including necessary information for using information service and to extract from the extracted first service component frame identification information of application service and decryption-related control data; and a decrypting unit configured to create a decryption key to be used for decrypting data of a second service component frame extracted from the data frame by using decryption information of the application service, and to decrypt data of the second service component by using the created decryption key. - View Dependent Claims (19, 20, 21, 22)
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Specification