Wireless communication device, portable terminal, communication control program and communication system

Abstract

A wireless communication device, comprising: a wireless communication unit which communicates with other communication device located at a prescribed range; a first identification information generator which generates first identification information including a service name of available service and inherent information; an encryption unit configured to encrypt said first identification information by using a prescribed encryption key to generate encryption data; a second identification information generator which generates second identification information including the service name, the inherent information and the encryption data; and an inherent information transmitter which transmits the second identification information for an other communication device which has requested transmission of the inherent information.

1 - 20 . (canceled) 
     
     
         21 . A wireless communication method, comprising:
 communicating with other communication devices located at a prescribed range;   generating first identification information including a service name of available service and inherent information;   encrypting the first identification information by using a prescribed encryption key to generate encryption data;   generating second identification information including the service name, the inherent information and the encryption data; and   transmitting the second identification information for an other communication device which has requested transmission of the inherent information.   
     
     
         22 . The wireless communication method according to  claim 21 , wherein the generating first identification information uses a Hash value obtained by a Hash operation for data including the service name and the inherent information, as the first identification information. 
     
     
         23 . The wireless communication method according to  claim 21 , wherein the generating second identification information generates the second identification information in which the encryption data is arranged after the service name, and information indicative of a length of the service name is arranged before the service name. 
     
     
         24 . The wireless communication method according to  claim 21 , wherein the generating second identification information generates the second identification information in which information indicative of whether or not check of reliability is necessary is arranged before information indicative of a length of the service name. 
     
     
         25 . The wireless communication method according to  claim 21 , wherein the communicating with other communication devices communicates with the other communication devices by P2P (Peer to Peer). 
     
     
         26 . The wireless communication method according to  claim 21 , wherein the encrypting the first identification information encrypts again the first identification information to generate the encryption data, when an expiration data of the encryption key passes. 
     
     
         27 . A mobile communication method, comprising:
 communicating with other communication devices located at a prescribed range;   searching the other communication devices capable of communicating;   acquiring first identification information transmitted from the searched communication device;   extracting a service name, inherent information and encryption data from the acquired first identification information;   decrypting the encryption data by using a prescribed decryption key;   comparing the decrypted data with the extracted service name and the inherent information, and to determine whether or not the searched other communication device is reliable; and   inhibiting communication with the communication device determined to be unreliable by comparing the decrypted data.   
     
     
         28 . The mobile communication method according to  claim 27 , further comprising:
 indicating to users information indicative of being unreliable when users try to connect to the communication device determined to be unreliable by comparing the decrypted data.   
     
     
         29 . The mobile communication method according to  claim 28 , further comprising:
 registering a list of the other communication devices determined to be unreliable by comparing the decrypted data;   wherein communication with the registered communication devices is inhibited.   
     
     
         30 . The mobile communication method according to  claim 27 , wherein the acquiring first identification information extracts data of a first length from a head of the information transmitted from the searched communication device, and determines whether the information is the first identification information based on the extracted data. 
     
     
         31 . The mobile communication method according to  claim 30 , wherein the extracting a service name, inherent information and encryption data extracts data of a second length from a head of the first identification information, and decides a length of the service name based on the extracted data. 
     
     
         32 . The mobile communication method according to  claim 31 , wherein the extracting a service name, inherent information and encryption data extracts data of a length of the decided service name from a head of data except for data of the first and second lengths from a head of the first identification information, as the service name. 
     
     
         33 . The mobile communication method according to  claim 32 , wherein the extracting a service name, inherent information and encryption data extracts data of a third length from a head of data except for the first length, the second length and the length of the decided service name from the head of the first identification information, an inherent information. 
     
     
         34 . The mobile communication method according to  claim 33 , wherein the extracting a service name, inherent information and encryption data determines whether or not data except for the first length, the second length, the length of the decided service name, and the third length from a head of the first identification information is a fourth length, and if the data is the fourth length, extracts the data as the encryption data. 
     
     
         35 . The mobile communication method according to  claim 27 , further comprising:
 performing a Hash operation for data including the extracted service name and the device identification name to generate a Hash value,   wherein the decoded data is compared with the generated Hash value.   
     
     
         36 . The mobile communication method according to  claim 27 , wherein the communicating with other communication devices communicates with the other communication devices by P2P (Peer to Peer). 
     
     
         37 . The mobile communication method according to  claim 27 , wherein the decrypting the encryption data decrypts the encryption data by using a new decryption key when an expiration date of the decryption key passes.