Method of establishing home domain through device authentication using smart card, and smart card for the same

Abstract

A method of establishing a home domain capable of reproducing multimedia content, and a smart card (500) therefor. The method includes creating (S4) a domain certificate (140) for a reproducing device (100) by inserting the smart card into the reproducing device, creating a session key by inserting the smart card into a home server (200), and verifying the domain certificate of the reproducing device and transmitting the created session key to the reproducing device if the device is a legitimate device. Alternatively, the method includes using an external certificate authority (300) to determine whether the reproducing device is a legitimate device. The smart card includes a certificate-creating module (570) for creating a domain certificate for a reproducing device when the smart card is inserted into the reproducing device, a session key-creating module (560) for creating a session key when the smart card is inserted into the home server, and a certificate-verifying module (580) for verifying the domain certificate of the reproducing device before transmission of the created session key to the reproducing device.

Description

technical field [0001] The present invention relates to a method for establishing a home domain (home domain) capable of reproducing multimedia content and a smart card used for the method, in particular to a method for establishing a home domain and a smart card for the method, wherein in order to securely receive and Digital data including multimedia content provided from the outside is reproduced, and devices constituting a home network are authenticated using smart cards. Background technique [0002] With the development of the Internet, the number of service providers providing various contents through the Internet has greatly increased. The term "content" is often used to denote the content or form of a book or newspaper. However, the term "content" is currently used mainly to refer to digital information provided through various wired / wireless communication networks in general. Such contents include, for example, various programs or information provided through the...

AI Technical Summary

Problems solved by technology

In such a case, other users who provided the remaining smart cards can easily enter the constructed network, making it difficult to effectively prevent the violation of personal secrets

In case the vendor visits and builds the network himself and the user wants to expand the network later, i.e. the user buys new equipment, it is inconvenient that the vendor will need to visit the purchaser again to rebuild the network for a different situation

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