| 摘要 |
The present invention discloses a method and system for categorizing contents and relates to network and communication technologies. The content categorizing method includes: categorizing a content for which a category is requested and determining the content category; generating a digital signature according to the content and the content category; and returning the content category and the digital signature. The content screening method includes: receiving a pre-categorized content that carries a content, a content category and a digital signature; performing trust verification on the pre-categorized content according to the digital signature and when the trust verification is successful, screening the content according to the content category carried in the pre-categorized content. The present invention also discloses a content categorizing apparatus, a content screening apparatus, and a system for implementing a trust model. With the present invention, when a pre-categorized content is consumed, the correct mapping between the content and content category carried in the pre-categorized content is verified and the identity of the content categorizer is authenticated to guarantee the legal source of data.
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