Terminology
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13 APPENDIX E: TERMINOLOGY
The Advanced Encryption Standard (AES) is a new block cipher standard to
replace DES, developed by NIST, the US National Institute of Standards and
Technology. AES ciphers use a 128-bit block and 128-, 192-, or 256-bit keys.
The larger block size helps resist birthday attacks while the large key size
prevents brute force attacks.
Access Point Name (APN) is used by carriers to identify an IP packet data
network that a mobile data user wants to communicate with and the type of
wireless service
Authentication is the technique by which a process verifies that its
communication partner is who it is supposed to be and not an imposter.
Authentication confirms that data is sent to the intended recipient and
assures the recipient that the data originated from the expected sender and
has not been altered on route
Basic Input/Output System is the built-in software in a computer that are
executed on startup (boot) and that determine what the computer can do
without accessing programs from a disk. On PCs, the BIOS contains all the
code required to control the keyboard, display screen, disk drives, serial
communications, and a number of miscellaneous functions
Ethernet Bonding or Failover is the ability to detect communication failure
transparently, and switch from one LAN connection to another.
Bootstrap Protocol. A protocol that allows a network user to automatically
receive an IP address and have an operating system boot without user
interaction. BOOTP is the basis for the more advanced DHCP
A digitally signed statement that contains information about an entity and
the entity's public key, thus binding these two pieces of information together.
A certificate is issued by a trusted organization (or entity) called a
Certification Authority (CA) after the CA has verified that the entity is who it
says it is.
A Certificate Authority is a trusted third party, which certifies public keys
belong to their claimed owners. It allows users to trust that a given public
key is the one they wish to use, either to send a private message to its owner
or to verify the signature on a message sent by that owner.
Certificate
Revocation List
A list of certificates that have been revoked by the CA before they expired.
This may be necessary if the private key certificate has been compromised
or if the holder of the certificate is to be denied the ability to establish a
connection to the console server.
Challenge-Handshake Authentication Protocol (CHAP) is used to verify a
user's name and password for PPP Internet connections. It is more secure
than PAP, the other main authentication protocol.
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