Patent ID: 8190882

Claim:
An information processing method, comprising: distributing publicly an address value of an access point along with a first key as a light flash signal by a change in a ray of light emitted from a light source; extracting the address value of the access point and the first key from the ray of light emitted from the light source using an image taken of the access point and in which the ray of light emitted from the light source is imaged, wherein the ray of light emitted from the light source is imaged in the image taken of the access point when a light receptor used in taking the image taken of the access point is arranged in a predetermined direction toward the access point; displaying a symbol corresponding to the address value of the access point with the image taken of the access point; encrypting a second key with the extracted first key to transmit the encrypted second key in short-distance communication, based on whether the symbol is selected; receiving and decrypting the encrypted second key; and transferring information by use of the second key as a common key.