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What is RADIUS?
RADIUS stands for Remote Authentication Dial-In User Service. RADIUS is a standard
that has been implemented into several software packages and networking devices.
It allows user information to be sent to a central database running on a RADIUS
Server, where it is verified. RADIUS also provides a mechanism for accounting.
What is WPA?
WPA (Wi-Fi Protected Access) is a subset of the IEEE 802.11i security sepcification
draft. Key difference between WPA and WEP are user authentication and improve
data encryption.
What is WPA-PSK?
WPA-PSK (Wi-Fi Protected Access Pre-Shared Key) can be used if user do not have a
Radius server but still want to benefit from it. Because WPA-PSK only requires a
single password to be entered on wireless AP/gateway and wireless client. As long
as the passwords match, a client will be granted access to the WLAN.
What is WPA2?
WPA2 (Wi-Fi Protected Access 2) which security is a higher level then WPA, cause it
brings AES-base algorithm and CCMP in it and offers stronger encryption then WPA
uses (TKIP). WPA2 encryption keys that are used for each client on the network are
unique and specific to that client. Eventually, each packet which is sent over the air is
encrypted with a unique key. The higher security is enhanced with the use of a new
and unique encryption key because there is no key reuse.
