CEH Glossary Deck 2 Flashcards
provide additional definitions from CEH
access point (AP)
A wireless LAN device that acts as a central point for all wireless traffic.
The AP is connected to both the wireless LAN and the wired LAN, providing wireless clients access to network resources.
accountability
The ability to trace actions performed on a system to a specific user or system entity.
acknowledgment (ACK)
A TCP flag notifying an originating station that the preceding packet (or packets) has been received.
active attack
An attack that is direct in nature—usually where the attacker injects something into, or otherwise alters, the network or system target.
bastion host
A computer placed outside a firewall to provide public services to other Internet sites and hardened to resist external attacks.
biometrics
A measurable, physical characteristic used to recognize the identity, or to verify the claimed identity, of an applicant.
Facial images, fingerprints, and handwriting samples are all examples of biometrics.
bit flipping
A cryptographic attack where bits are manipulated in the cipher text to generate a predictable outcome in the plain text once it is decrypted.
Challenge Handshake Authentication Protocol (CHAP)
An authentication method on point-to-point links, using a three-way handshake and a mutually agreed-upon key.
CIA triad
Confidentiality, integrity, and availability. These are the three fundamental aspects of security.
cipher text
Text or data in its encrypted form; the result of plain text being input into a cryptographic algorithm.
client
A computer process that requests a service from another computer and accepts the server’s responses.
database
An organized collection of data.
decryption
The process of transforming cipher text into plain text through the use of a cryptographic algorithm.
defense in depth
An information assurance strategy in which multiple layers of defense are placed throughout an information technology system.
Electronic Code Book (ECB)
A mode of operation for a block cipher, with the characteristic that each possible block of plain text has a defined corresponding cipher-text value, and vice versa.
