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    • 4. 发明专利
    • Communication terminal
    • JP5163732B2
    • 2013-03-13
    • JP2010272108
    • 2010-12-07
    • 富士通株式会社
    • 雄一 田代浩 高野幸良 中作
    • H04W12/04H04L9/08H04L9/14H04W40/24H04W84/18
    • PROBLEM TO BE SOLVED: To provide a method of keeping a secret of information, which is suitable for a wireless ad-hoc network. SOLUTION: An encryption/decoding processor 15 encrypts or decodes control information, which is information that represents the freshness degree of data required for transmission to one destination communication terminal among the communication terminals that configure a wireless communication network at every destination communication terminal, using a common encryption key 22-1 common to all communication terminals that configure the network. A control information transmission and reception part 13 makes a wireless transmission and reception processor 11 carry out transmission of the control information to which the encryption is performed and reception of the control information transmitted from the other. When decoding of the received control information using the common encryption key 22-1 becomes successful, a routing table production/update processor 14 produces a routing table 21 indicating the communication terminal to be the first transmission destination for relaying the data in the case of transmission of the data to the destination communication terminal, based on the control information. COPYRIGHT: (C)2011,JPO&INPIT