Wireless Networks – Brief Overview
Wireless networking - popular method of connecting corporate and home
systems because of ease of deployment and low cost
Date Emanation - transmission of data across electromagnetic signals
Emanation happens whenever electrons move - create a magnetic field - if
you can read it, you can recreate it
Securing Wireless Access Points - wireless cells are areas within the physical
environment like WAP - can leak outside the environment
802.11 - 2 Mbps - 2.4 GHz
802.11a - 54 Mbps - 5 GHz
802.11b - 11 Mbps - 2.4 GHz
802.11g - 54 Mbps - 2.4 GHz
802.11n - 200+ Mbps - 2.4 GHz or 5
802.11ac - 1 Gbps - 5 GHz
Deploy WAP to use Infrastructure Mode instead of ad hoc
TKIP - includes a key-mixing function that combines the initialization vector
with the secret root key
CCMP - uses AES with 128 bit key
PEAP - encapsulates EAP methods within a TLS tunnel that provides
authentication and potentially encryption
LEAP - Addresses definciences in TKIP
802.1x/EAP - ensure clients can't communicate with a resource until proper
auth
Wireless networking - popular method of connecting corporate and home
systems because of ease of deployment and low cost
Date Emanation - transmission of data across electromagnetic signals
Emanation happens whenever electrons move - create a magnetic field - if
you can read it, you can recreate it
Securing Wireless Access Points - wireless cells are areas within the physical
environment like WAP - can leak outside the environment
802.11 - 2 Mbps - 2.4 GHz
802.11a - 54 Mbps - 5 GHz
802.11b - 11 Mbps - 2.4 GHz
802.11g - 54 Mbps - 2.4 GHz
802.11n - 200+ Mbps - 2.4 GHz or 5
802.11ac - 1 Gbps - 5 GHz
Deploy WAP to use Infrastructure Mode instead of ad hoc
TKIP - includes a key-mixing function that combines the initialization vector
with the secret root key
CCMP - uses AES with 128 bit key
PEAP - encapsulates EAP methods within a TLS tunnel that provides
authentication and potentially encryption
LEAP - Addresses definciences in TKIP
802.1x/EAP - ensure clients can't communicate with a resource until proper
auth
