Method and apparatus for communication, and method and apparatus for controlling communication

摘要

Method and apparatus for communication between client and service provider using external server, and a method and apparatus for controlling communication between a client and a service provider are provided. The method includes: receiving from the service provider a first authentication token indicating that the service provider has authenticated communication with the client by logging on the service provider; storing, in the external server, authentication information containing the first authentication token and additional information relating to communication with the service provider; receiving, when there is a request to access the service provider, authentication information corresponding to the request from the external server; and communicating with the service provider using the received authentication information. It is possible to alleviate the burden on a user to enter his or her ID and password, and to remove necessity for a user to enter the ID and password after registration has been performed once.

主权项

1. A method of communicating between a client and a service provider using an external server, the method comprising:
an authentication process comprising:
the client logging on to the service provider and receiving, from the service provider, a first authentication token indicating that the service provider has authenticated communication with the client;the client, storing in the external server, authentication information containing the first authentication token and additional information relating to communication with the service provider; andan access process, when there is a request to access the service provider, the access process comprising:
the client receiving, from the external server, authentication information obtained by the client or a different associated client, corresponding to the request, wherein in the authentication information is usable by the client or the different associated client to gain access to service provider;the client determining whether or not the first authentication token contained in the authentication information is valid;if it is determined that the first authentication token is valid, the client communicating with the service provider using the authentication information received from the external server without logging on to the service provider subsequent to the authentication process; andif it is determined that the first authentication token is invalid, the client receiving a valid second authentication token from the service provider using additional information contained in the authentication information.