vocabularyB Flashcards
Badge
A device used for identification or authentication. A badge can be electronic or standard.
Baseband
A digital LAN signaling type in which the entire media is filled with one signal.
Bastion Host
A device that acts as a host and provides packet filtering and proxy services.
BCP
Business continuity plan is a plan ensuring that the business can continue in the event of an interruption.
Bell-LaPadula Model
A security model presented in the 1970s by the US Department of Defense. It was designed specifically to protect classified information and addresses data confidentiality only. This model supports multiple states and transitions between states.
Biba Model
Security model designed to address data integrity.
Biometrics
The most expensive and secure authentication type that uses physical characteristics to authenticate a person. Biometrics use characteristics such as retina and iris scans, fingerprint and handprint characteristics, voice patterns, keystroke patterns, and signatures to authenticate a subject.
Birthday
A type of attack which attempts to find different messages that produce the same digest.
Block Cipher
A category of cipher in which the cipher works on a section of plaintext.
Blowfish
A symmetric cryptographic algorithm standard developed as an alternative to DES and IDEA. Blowfish operates on 64-bit blocks and the key varies from 32 bits to 446 bits.
Boot Sector Infector
A virus that infects the Master Boot Record or the Boot Sector of a computers boot device.
BRI
The Basic Rate Interface is an ISDN type that includes two 64-KB channels and one 16-KB channel. The 64-KB channels transmit all digital, audio, and video and the 16-KB channel is for purely digital transfer.
Bridge
A network connection device that forwards data packets based on the MAC address included in the frame. A bridge uses the data-link layer of the ISO/OSI reference model.
Broadband
An analog LAN signaling type commonly used for cable TV in which multiple communication channels may be used simultaneously by transmitting channels on a carrier.
Brute Force Attack
An attack that attempts to gain access many times using different input types. Examples of brute force attacks are password guessing and war dialing.