USER AUTHENTICATION SYSTEM

摘要

A portable terminal includes a first sound output unit and a first sound input unit, and an image forming apparatus includes a second sound output unit, a second sound input unit, an authentication information generating unit generating a security code, a storage unit storing the generated security code, and an authentication confirmation unit performing a user authentication by using the security code. When the first sound input unit receives a first synthesized sound, which includes the stored security code and is outputted from the second sound output unit, the first sound output unit outputs a second synthesized sound including the security code extracted from the received first synthesized sound, and the authentication confirmation unit determines that a user authentication is successful when the stored security code and the security code extracted from the received second synthesized sound match.

主权项

1. A user authentication system comprising: a portable terminal and an image forming apparatus, wherein,
the portable terminal provides a first sound output unit outputting a synthesized sound; and a first sound input unit receiving a synthesized sound outputted from the image forming apparatus, and the image forming apparatus provides a second sound output unit outputting a synthesized sound; a second sound input unit receiving the synthesized sound outputted from the portable terminal; an authentication information generating unit generating a security code used for a user authentication; a storage unit storing the generated security code; and an authentication confirmation unit performing a user authentication by using the security code, wherein, the second sound output unit in the image forming apparatus outputs a first synthesized sound including the stored security code, when the first sound input unit in the portable terminal receives the first synthesized sound, the first sound output unit outputs a second synthesized sound including the security code extracted from the received first synthesized sound, the authentication confirmation unit compares the stored security code and the security code extracted from the second synthesized sound received by the second sound input unit, and when both security codes match, the authentication confirmation unit determines that a user authentication is successful.