User equipment and service providing device, control method thereof and computer readable medium having computer program recorded therefor

摘要

Disclosed are a user device, a service providing device, a control method thereof, and a recording medium having a computer program recorded thereon. The present invention uses authentication data which can protect user information so as to allow the user device to be connected to the service providing device when the user device is connected to the service providing device via browser, thereby improving security. Also, the same log-in method is applied to a plurality of member stores, thereby improving convenience of a user.