Patent ID: 8666899

Claim:
An information communication system for executing a communication service over a network, to provide authenticated purchasing, the system comprising: a user terminal apparatus; an information-providing apparatus; and a user management apparatus; the user terminal apparatus being configured to: send a login request to the user management apparatus over the network; receive, and identify as such, temporary information from the user management apparatus over the network, the temporary information including temporary user information and temporary authentication information; and send an access request and the temporary information over the network to the information-providing apparatus; the information-providing apparatus being designated in the login request and configured to: receive, and identify as such, the temporary information and the access request over the network from the user terminal apparatus; and execute user authentication based on the temporary information and the access request received from the user terminal apparatus by re-transmitting the temporary information to the user management apparatus and receiving a response from the user management apparatus indicating whether the access request should be granted; and the user management apparatus being configured to: receive the login request from the user terminal apparatus over the network; issue the temporary information in accordance with the login request; and transmit the temporary information to the user terminal apparatus over the network.