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Explanation of Terms
AES (Advanced
Encryption Standard)
A symmetric 128-bit block data encryption technique developed by Belgian cryptographers
Joan Daemen and Vincent Rijmen. The U.S. government adopted the algorithm as its
encryption technique in October 2000, replacing the DES encryption it used. AES works at
multiple network layers simultaneously.
AES-CCMP
AES-Counter Mode CBC-MAC Protocol (AES-CCMP) is the encryption algorithm used in
the 802.11i security protocol. It uses the AES block cipher, but restricts the key length to
128 bits. It incorporates two sophisticated cryptographic techniques (counter mode and
CBC-MAC), and adapts them to Ethernet frames to provide a robust security protocol
between the mobile client and the access point.
Bandwidth
The transmission capacity of a given device or network.
Bit
A binary digit.
Browser
An application program that provides a way to look at and interact with all the information on
the World Wide Web.
CTS (Clear To Send)
A signal sent by a wireless device, signifying that it is ready to receive data.
Default Gateway
A device that forwards Internet traffic from the local area network.
DHCP (Dynamic Host
Configuration Protocol)
A networking protocol that allows administrators to assign temporary IP addresses to
network computers by “leasing” an IP address to a user for a limited amount of time instead
of assigning permanent IP addresses.
DNS - (Domain Name
System [or Service or
Server])
An Internet service that translates domain names into IP addresses. Because domain
names are alphabetic, they’re easier to remember. The Internet, however, is really based on
IP addresses. Every time you use a domain name, a DNS service must translate the name
into the corresponding IP address. For example, the domain name www.example.com
might translate to 198.105.232.4. The DNS system is, in fact, its own network. If one DNS
server doesn’t know how to translate a particular domain name, it asks another one, and so
on, until the correct IP address is returned.
Domain
A specific name for a network of computers.
DTIM (Delivery Traffic
Indication Message)
A message included in data packets that can increase wireless efficiency.
Dynamic IP Address
A temporary IP address assigned by a DHCP server.
Encryption
Encoding data transmitted in a network.
Ethernet
IEEE standard network protocol that specifies how data is placed on and retrieved from a
common transmission medium.
Firewall
A set of related programs located at a network gateway server that protects the resources
of a network from other networks.
Firmware
The programming code that runs a device.
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