| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce processing load when an encryption key required for encryption of an updated group key transmitted from a master node to a slave node is exchanged between the master node and the slave node. <P>SOLUTION: The node included in a wireless mesh network including one route node comprises a network access authentication processing unit which performs authentication processing between the own node and the route node when participating in the wireless mesh network, a route key setting unit which generates a route key, i.e. a common key between the own node and the route node, a master/slave key setting unit which generates a master/slave key, i.e. a common key between the own node and a master node, encrypts the master/slave key by the route key, and transmits the encrypted master/slave key to the route node, and a group key acquisition unit which receives the group key encrypted by the master/slave key from the master node, and decrypts the group key by the master/slave key. <P>COPYRIGHT: (C)2013,JPO&INPIT |
