US Robotics USR2450 Informations techniques télécharger pdf (Page 46)

V 2.2 Copyright SystemExperts 2001,2002,2003

Future 802.11 Security Enhancements

n Standard 128-bit WEP encryption (WEP2)

n Already implemented by all of the major vendors but

has not been standardized yet

n Advanced Encryption Standard (AES) for

WEP

n Standard key exchange and distribution

n EAP & LEAP seem to be the wave of the future

n Improved data integrity via keyed message

authentication

n Better message integrity checking

V 2.2 Copyright SystemExperts 2001,2002,2003

Observations

n This is relatively new territory, so watch for

significant changes

n WEP can be a legitimate tool in the security arsenal

n View 802.11 networks as an insecure MAC layer, over which

you run secure IP protocols

n Use WEP/EAP/802.1x to protect against casual snoopers,

local DoS attacks, and bandwidth theft

n WEP won’t help with stolen equipment and

ex-employees

n It appears that ESN/802.1X has more momentum

than anything else

(i.e., Cisco and Lucent support it)

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US Robotics USR2450 Informations techniques Page 46