WPA/WEP key discovery time

Good morning. I'm looking for some hints about where to start looking to
determine how often to cycle the keys used in a WEP and WPA installation.

128 bit WEP typical transfer 5m bytes/day.
WPA (personal, static key) typical transfer 500m bytes/day.

Both are part of a layered system - no unencrypted traffic goes over the
link, and all the hosts only listen to SSH traffic - the priority is
stopping access to network resources and limiting the time avaialable to
abuse the machines on the network. The WEP network can't be dropped because
the device it handles has no other hardware support, but internal routing
limits it's access to the rest of the network.

A typical attacker would have access to a fast current generation machine,
there are a lot of students around here with far too much time on their
hands.


.

Relevant Pages

  • Re: Is Dynamic WEP Secure Enough?
    ... Forgive me for my ignorance and please correct me if I am wrong OR if I have wrongly understood these/ any of the replies to the Dynamic WEP question ... different users changing their keys at different points in time ... The physical security that is existing on the ground that can contribute and hence the probability of finding out a parking lot hacker ... WEP can be cracked in less than ten minutes (even on a network without ...
    (Security-Basics)
  • Re: wep still does not work
    ... wireless network open, that works perfectly. ... As Im under breezy, Ive tried the brand new dapper live cd, knoppix ... generate 64-bit keys, so if you're using 128-bit keys, the string ... I used WEP quite effectively in Breezy on a PPC system, ...
    (Ubuntu)
  • Re: how do I secure my Wi-Fi network
    ... The older standard, 802.11b has an encryption scheme called WEP, ... which uses keys of either 64bit or 128bit. ... > I want to switch my network from cable to wireless. ... > wireless networks to log on, ...
    (microsoft.public.windowsxp.network_web)
  • Re: Is Dynamic WEP Secure Enough?
    ... rotate keys every three minutes. ... or else you might as well keep the network open and turn WEP ... > corporate SSID (I have others with much lower security requirements). ...
    (Security-Basics)
  • Re: WPA/WEP key discovery time
    ... determine how often to cycle the keys used in a WEP and WPA installation. ... The WEP network can't be dropped because ...
    (sci.crypt)