Device authentication system

Abstract

The present invention provides a device authentication system, which is composed of a terminal, a data communication device connected to the terminal, and a service provider. The terminal encrypts stored device information, generates authentication information, and transmits the user information of the data communication device and the service provider. Encrypted machine information. The service provider uses the machine authentication server to decrypt the encrypted machine information, judges whether the terminal is consistent with the service content provided by the service provider according to the decrypted machine information, and controls whether to send the user information according to the authentication result. Authenticate the user to the server.

Description

technical field [0001] The present invention relates to a system for connecting a data communication device to a terminal to download necessary data from a data server, in particular to a device authentication system for authenticating a terminal connected to a data communication device. [0002] This application claims priority to Japanese Patent Application No. 2003-155703 for which it applied on May 30, 2003, and uses the content here. Background technique [0003] In recent years, with the rapid popularization of the Internet, not only personal computers connected by wired lines, but also communication devices such as data communication credit cards are installed on portable terminals such as notebook personal computers or PDAs (PDA: Personal Data Assistants) to It is also becoming popular to perform data distribution or data download from a data server. In such a system, it is impossible to identify the type of user terminal accompanying data delivery, and therefore op...

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Problems solved by technology

[0006] However, when a communication device such as a data communication credit card is connected to a terminal to transmit or download data from a data server, there may be cases where the communication device cannot be identified even if the model of the communication device can be identified. The problem with the terminal connected to the

In addition, according to a survey of the actual use of communication devices, it is known that the monthly average usage traffic when connected to a personal computer is used, and the monthly average traffic usage when connected to a portable terminal such as a PDA is used. There is a significant difference between them, and there is a big difference in the amount of traffic used due to the different terminal models used

Therefore, users who use terminals to receive services want to receive paid services that vary depending on the model they use. However, on the service provider side, since the model of the user cannot be identified, there is a problem that it cannot accurately respond to the user's request. this question of

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