Joi Ito's Web - 日本語

InfoWorld

WiFi eyes better wireless LAN security

By Stephen Lawson
October 30, 2002 11:37 am PT

THE WIRELESS ETHERNET Compatibility Alliance (WECA), which certifies IEEE 802.11 wireless LAN products with the WiFi label, on Thursday will announce a new set of mechanisms to combat the security problem that has plagued wireless LANs.

A WECA official did not provide details of the mechanisms but said they are intended to replace the current security system based on WEP (Wireless Encryption Protocol).

WEP, which is built in to products that use the IEEE 802.11b and 802.11a standards, is easy for intruders to break into, according to many analysts and other observers. A task group within the working group that administers 802.11 in the Institute of Electrical and Electronic Engineers Inc. (IEEE) is developing a new security specification that would require equipment to support several different strong algorithms for encrypting traffic. That work is not done yet, and products using it are not expected until the second half of next year.

やっとこの話が動き出した。実は今の無線ＬＡＮのSecurityは最悪です。WEP Keyが設定されていると大丈夫だと思ったら、大間違え。wepcrack見たいなプログラムを使えば数分でクラックできます。一部のアクセスポイントはもうSecurityをよくしてますが、ほとんどのＡＰはまだ。ですので、ＷＥＰ　ＫＥＹを設定したからって、安心しないでください。しかし、ほかの人が自分の回線を使うことを気にしなければ自分のネットーワーク内の通信を全部暗号かければいいだけですが。