Patent ID: 8213906
Filing Date: 2012-07-03
Classification: H04L,H04M,H04W

Abstract:
1. A communication server for generating a one-time password (OTP) using a mobile phone, the communication server executing a method comprising: displaying a website operable to receive a user identifier (ID) and a first password input by a user of the mobile phone, to check if the user ID corresponds to the first password, wherein the website requests the communication server to validate a telephone number of the mobile phone, displays that the mobile phone has been registered successfully if the telephone number of the mobile phone is valid, and displays that the mobile phone has not been registered successfully if the telephone number is invalid; calculating a first OTP according to a second password of the user ID stored in the communication server and a first random number, in response that the user ID corresponds to the first password; checking if a second OTP is the same as the first OTP, and displaying that the user has logged onto the website successfully if the second OTP is the same as the first OTP, or displaying that the user has failed to log onto the website if the second OTP is not the same as the first OTP, wherein the second OTP is generated according to a second password inputted by the user and a second random number by a subscriber identity module (SIM) card of the mobile phone.