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Glossary-5
Glossary
Tunneled Transport Layer Security (TTLS)
EAP-TTLS is a protocol extension of EAP-TLS. The authentication server is
authenticated to the client using its Certification Authority certificate, this establishes
a secure “tunnel” through which the client is then authenticated.
URL (Uniform Resource Locator)
An easy-to-read character string that is used to represent a resource available on
the Internet. For example, “http://www.url-example.com/.”
UTP
Unshielded twisted-pair cable.
Wi-Fi Protected Access
WPA employs IEEE 802.1X as its basic framework for user authentication and
dynamic key management to provide an enhanced security solution for 802.11 Wi-Fi
networks.
Wired Equivalent Privacy (WEP)
WEP is the Wi-Fi security based on the use of RC4 encryption keys. Wi-Fi devices
without a valid WEP key are excluded from the network.
WPA Pre-shared Key (PSK)
PSK security can be used for small Wi-Fi networks that may not have the resources
to configure and maintain a RADIUS server. WPA provides a simple operating mode
that uses just a pre-shared password for network access.
WiMAX
The IEEE 802.16 standard for Worldwide Interoperability for Microwave Access. The
IEEE 802.16-2004 standard, known as “fixed WiMAX,” supports only point-to-point
links and has no support for mobility. The IEEE 802.16e-2005 standard, known as
“mobile WiMAX,” is an amendment to IEEE 802.16-2004 and supports mobility. Note
that mobile WiMAX standard is not backward compatible with the fixed WiMAX
standard.