| 摘要 |
A wireless communication system includes an access point 101 and a terminal 102 exchanging, with the access point 101, a packet encrypted with an encryption key that has been previously set on the basis of a Wired Equivalent Privacy (WEP). When receiving the packet, the access point 101 determines whether the received packet includes a Weak Initial Vector (Weak IV) having a specified bit pattern. When the packet includes the Weak IV, the access point 101 transmits a disturbing signal for preventing the packet from being eavesdropped. |
