Method of managing metadata
First Claim
1. A method of managing metadata in a client device that receives the metadata, comprising:
- reading predetermined metadata fragment data, metadata-related information, and data format information indicating a type of the predetermined metadata fragment data, from the received metadata;
generating metadata-related information using the predetermined metadata fragment data and the read data format information; and
determining whether the received metadata has been authenticated by comparing the generated metadata-related information with the read metadata-related information.
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Accused Products
Abstract
Managing metadata in a metadata transmission server by generating a plurality of metadata fragment data by partitioning metadata to be transmitted based upon predetermined segment units, selecting predetermined metadata fragment data from among the plurality of the metadata fragment data, generating metadata-related authentication information using the selected metadata fragment data, and transmitting the selected metadata fragment data and the metadata-related authentication information including data format information indicating type of the selected metadata fragment data. A metadata receiving client uses the transmitted metadata fragment data, the metadata-related authentication information and the metadata format type information to authenticate the received metadata.
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Citations
29 Claims
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1. A method of managing metadata in a client device that receives the metadata, comprising:
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reading predetermined metadata fragment data, metadata-related information, and data format information indicating a type of the predetermined metadata fragment data, from the received metadata;
generating metadata-related information using the predetermined metadata fragment data and the read data format information; and
determining whether the received metadata has been authenticated by comparing the generated metadata-related information with the read metadata-related information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of managing metadata in a client device that receives the metadata, comprising:
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receiving metadata fragment data of the received metadata, metadata-related information, data format information indicating a type of the metadata fragment data, metadata authentication signature information, and an encrypted first encryption key;
generating metadata-related information using the metadata fragment data of the received metadata and the data format information;
decrypting the encrypted first encryption key using a second encryption key stored in the client device;
generating metadata authentication signature information using the generated metadata-related information and the decrypted first encryption key; and
determining whether the received metadata has been authenticated by comparing the generated metadata authentication signature information with the received metadata authentication signature information. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A metadata transmission server managing metadata security of a multimedia system, comprising:
a programmed computer processor controlling the server according to a process of;
generating a plurality of metadata fragment data by partitioning metadata to be transmitted based upon a predetermined semantic unit, selecting a predetermined metadata fragment data from among the plurality of metadata fragment data, generating metadata-related information using the selected metadata fragment data, and transmitting the selected metadata fragment data and the metadata-related information with data format information indicating a type of the selected metadata fragment data.
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18. A multimedia metadata authentication management system, comprising:
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a metadata transmission server comprising a programmed computer processor controlling the server according to a process of;
generating a plurality of metadata fragment data by partitioning metadata to be transmitted based upon a predetermined semantic unit, selecting a predetermined metadata fragment data from among the plurality of metadata fragment data, generating metadata-related information using the selected metadata fragment data, and transmitting the metadata including the selected metadata fragment data and the metadata-related information with data format information indicating a type of the selected metadata fragment data; and
a metadata receiving client comprising a programmed computer processor controlling the client according to a process of;
receiving the metadata fragment data, the metadata-related information and the data format information indicating the type of the metadata fragment data, transmitted from the metadata transmission server, generating metadata-related information using the transmitted metadata fragment data and the data format information, and determining whether the received metadata has been authenticated by comparing the generated metadata-related information with the transmitted metadata-related information.
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19. A metadata authentication system, comprising:
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a metadata transmission server comprising a programmed computer processor controlling the server according to a process of;
partitioning to be transmitted metadata into fragments based upon a predetermined semantic unit, generating a metadata authentication data container comprising one of the metadata fragments and metadata fragment authentication information using the one metadata fragment, and transmitting the metadata authentication container; and
a metadata receiving client comprising a programmed computer processor controlling the client according to a process of;
generating metadata fragment authentication information using the transmitted metadata fragment and the container metadata fragment authentication information, and authenticating the transmitted metadata by comparing the generated metadata fragment authentication information with the transmitted container metadata fragment authentication information. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A method of authentication metadata in a metadata transmission system, comprising:
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authenticating a fragment of metadata, the fragment being generated by partitioning metadata based upon a predetermined semantic unit;
associating information about the authentication to the metadata fragment; and
authenticating the metadata transmitted based upon the metadata fragment authentication information.
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28. A metadata receiving client receiving the metadata from a metadata transmission server via a network, the metadata transmission server partitioning to be transmitted metadata into fragments based upon a predetermined semantic unit, and transmitting to the metadata receiving client a metadata authentication data container comprising one of the metadata fragments and metadata fragment authentication information using the one metadata fragment, the metadata receiving client comprising:
a programmed computer processor controlling the metadata client according to a process of;
generating metadata fragment authentication information using the transmitted metadata fragment and the container metadata fragment authentication information, and authenticating the transmitted metadata by comparing the generated metadata fragment authentication information with the transmitted container metadata fragment authentication information.
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29. A machine readable storage storing at least one computer program controlling networked computers according to a process comprising:
performing metadata transmission-level or source-level authentication in any directional type data channel environment by partitioning to be transmitted metadata into fragments based upon a predetermined semantic unit, and processing a metadata authentication data container comprising at least one of the metadata fragments and metadata fragment authentication information using the one metadata fragment and a data format type of the metadata.
Specification