Patent ID: 7873836

Claim:
A wireless communication system, comprising: a first information processing apparatus and a second information processing apparatus communicating with each other in a wireless manner, said first information processing apparatus including first transmission means for initially transmitting a wireless signal for computing a location of said first information processing apparatus to said second information processing apparatus; and said second information processing apparatus including first reception means for receiving said wireless signal, transmitted from said first information processing apparatus, at a plurality of positions; computation means for computing said location of said first information processing apparatus on the basis of reception times of said wireless signal received at said plurality of positions; determination means for determining whether said computed location of said first information processing apparatus is inside a predetermined area; and second transmission means for transmitting, if said computed location of said first information processing apparatus is found inside said predetermined area, data necessary for encrypting or decrypting information to be communicated between said first information processing apparatus and said second information processing apparatus; said first information processing apparatus further including second reception means for receiving said data transmitted from said second information processing apparatus; first hash value generating means for generating a first hash value of said data; and first display means for displaying said generated first hash value; and said second information processing apparatus further includes, second hash value generating means for generating a second hash value of said data; and second display means for displaying said generated second hash value.