AUTHENTICATION METHOD AND SYSTEM USING STATE INFORMATION OF USER TERMINAL

摘要

PURPOSE: An authentication method and a system using state information of a user terminal are provided to perform user authentication in each server only by transmitting token made in an authentication authority without an authentication step. CONSTITUTION: According to the authentication method performed in a central server, a token issue request is inputted from a user terminal(S301). Policy information is transmitted to the user terminal in response to the token issue request, and the policy information is to grasp state information related with a state of the user terminal(S302). The state information is received from the user terminal in response to the transmission of the policy information(S303). It is judged whether to issue the token related with the user terminal on the basis of the state information(S304). Then, the token including authentication information is generated according to the judgement result(S305). Then, the generated token is transmitted to the user terminal(S306).