Authentication server, program, authentication system, and authentication method

Abstract

The present invention relates to an authentication server, a program, an authentication system and an authentication method, and provides a technology for enabling authentication according to a state of use of a device on a user side. When, on a communication device (10), a user requests a service providing server (16) to provide a service, an authentication server (17) acquires, from a presence server (19), presence information on a wireless terminal device (11), a softphone-equipped device (13), and a messenger-equipped device (15) held by the user requesting the service, selects an authentication method corresponding to the acquired presence information, and transmits a one-time password from an audio reproduction server (21) or an IM transmission server (22) to the wireless terminal device (11), the softphone-equipped device (13), or the messenger-equipped device (15).

Description

Technical field [0001] The present invention relates to a technology for authenticating a user who receives a service provision. Background technique [0002] Due to the popularization of the Internet, various services such as the distribution of animations and sounds, and the publication of Web applications or Web sites have been provided to users via the Internet. Moreover, when the service provider needs to limit the users of the service, before providing the service, confirm the legitimacy of the user requesting the service, that is, perform user authentication. [0003] As the most general user authentication method, there is a method using ID (identifier: a character string used to uniquely identify the user) and password. However, in order to enhance the security of the user authentication method using ID and password, it is known, for example, in Japanese Patent Laid-Open No. 10 -341224 Bulletin (Document 1) described in the technology. [0004] The technology described i...

AI Technical Summary

Problems solved by technology

[0007] However, in the technology shown in Document 1, the user authentication method may have to be abandoned due to the usage status of the terminal 2 communicating via the line 2.

[0008] For example, when it is assumed that a mobile communication network is used as the line 2 and a mobile phone is used as the terminal 2, the user cannot use the mobile phone if it becomes difficult or impossible to receive radio waves due to reasons such as that the mobile phone is located underground. to receive a one-time password, so authentication cannot be performed

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