Security crisis in wireless LAN? Following "WEP" followed by "WPA" partially deciphering

Previously at GIGAZINEAn algorithm that deciphers the wireless LAN encryption method "WEP" in an instant was announced by Professor Masakatsu Morii of Kobe UniversityWe talked about this, but this time it is a stronger encryption method than WEP "WPAIt seems that part has been deciphered.

When WEP was decrypted, because Nintendo DS only supports WEP, there was concern about security, but this time it is possible to use credit card payment to purchase contents etc Xbox 360 and PSP security The above problem is concerned.

※ I added a method to secure safety with Xbox 360 and PSP at 13:00 on November 8

Details are as follows.
Once thought safe, WPA Wi-Fi encryption is cracked

According to this article, it seems to be reported at the "PacSec meeting" next week in Tokyo that it succeeded in deciphering part of "WPA" which is a stronger wireless LAN encryption method than WEP.

This decryption is done by researcher Erik Tews, and the encryption protocol of WPA which encrypted by automatically changing the key "TKIPIt was decrypted.

Also, this "TKIP" uses a huge computer resource to input words from a dictionary and try it "Dictionary attackAlthough it was said that it could be deciphered by using the thing called "Tews et al.", It is not a dictionary attack but a mathematical breakthrough, and it can be decoded in a short time such as 12 to 15 minutes is. The decryption method will be published in academic journals within a few months.

And according to the following article, it is a stronger encryption method than WPAXbox 360 not compatible with "WPA 2"It is said that credit card information etc. of users are put at risk.

SANS Internet Storm Center; Cooperative Network Security Community - Internet Security - isc

By the way PSP also does not correspond to WPA 2, so there is a possibility of being exposed to similar risks,WiiYaPS3In addition to being compatible with WPA 2,If you use "AES" instead of the encryption protocol "TKIP" in the same WPA, it seems that safety can be secured even with Xbox 360 and PSP. This is a threat which could not be thought of in the former home game machine ... This is ....