Patent ID: 7937587

Claim:
An information communication method comprising: sharing a first encryption key between a communication terminal apparatus and a first server; receiving, by the communication terminal apparatus, a request from the first server to send identification information of the communication terminal apparatus; authenticating, by the communication terminal apparatus, the first server based on (1) certificate information of the first server that is acquired in sharing the first encryption key with the first server and (2) verification information retained in the communication terminal apparatus; encrypting, by the communication terminal apparatus, the identification information of the communication terminal apparatus using a second encryption key; encrypting, using the first encryption key, according to an authentication result, by the communication terminal apparatus, the identification information of the communication terminal apparatus as encrypted by using the second encryption key, and transmitting resulting double-encrypted identification information of the communication terminal apparatus to the first server; receiving the transmitted identification information of the communication terminal apparatus by the first server; decrypting the received identification information of the communication terminal apparatus using a first decryption key by the first server; receiving identification information of the communication terminal apparatus decrypted by the first server by a second server for authenticating the communication terminal apparatus; decrypting the received identification information of the communication terminal apparatus using a second decryption key by the second server; authenticating the communication terminal apparatus based on decrypted identification information of the communication terminal apparatus by the second server; receiving an authentication result by the first server; and distributing a content by the first server to the communication terminal apparatus based on the received authentication result.