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security+ guide to network security ch 6
chapter 6 from a textbook from a security+ exam
38
Computer Networking
Undergraduate 2
05/15/2010

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Term
AES-CCMP
Definition
An advanced security encryption protocol used in the Wi-Fi protected Access 2 (WPA2) standard
Term
Association request frame
Definition
A frame that carries information about the data rules that the device can support along with the Service Set Identifier (SSID) of the network it wants to join.
Term
Authentication Server
Definition
A server whose only job is to verify the authentication of devices
Term
Challenge text
Definition
Text that is used in shared key authentication to authenticate a device
Term
Cipher text
Definition
Encrypted text
Term
Collision
Definition
Two packets derived from the same initialization vector (IV)
Term
Cyclic redundancy check (CRC)
Definition
A checksum based on the contents of the text
Term
handoff
Definition
Associating with a new access point
Term
IEEE 802.11a
Definition
An 1999 amendment with a maximum rated speed of 54 Mbps using the 5 GHz spectrum
Term
IEEE 802.11b
Definition
A 1999 amendment to the 802.11 standard that added two higher speeds (5.5 mbps and ll mbps)
Term
IEEE 802.11g
Definition
A standard formally ratified in 2003 for wireless LAN transmissions of devices transmitting at 54 Mbps
Term
IEEE 802.11i
Definition
The 2004 wireless security standard that addresses the two main weaknesses of wireless networks, encryption and authentication
Term
IEEE 802.11n
Definition
A proposed standard for faster wireless LANs projected to be ratified in 2009
Term
IEEE 802.1x
Definition
A standard originally developed for wired networks that provides a greater degree of security for wireless networks by implementing port-based authentication.
Term
Initialization Vector (IV)
Definition
A 24 bit balue that changes each time a packet is encrypted suing Wired Equivalent Privacy (WEP)
Term
Institute of Eletrical and Electronics Engineers (IEEE)
Definition
An organization that sets standards for computer networking and wireless communications.
Term
Integrity check value (ICV)
Definition
A checksum based on the contents of the text, used in WEP encryption
Term
Key-Caching
Definition
Storing information from a device on the network so if so if a user roams away from a wireless access point and later returns he does not need to reenter all of the credentials
Term
keystream
Definition
a series of 1's and 0's equal in length to the text to be encrypted with Wired Equivalent Privacy (WEP) plus the integrity check value (ICV)
Term
keystream attack
Definition
An attack that attempts to determine the keystream by analyzing two packets that were created from the same initialization vector (IV)
Term
Message Integrity Check (MIC)
Definition
A protocol designed to prevent an a attacker from capturing, altering and resending data packets.
Term
Open Systems Authentication
Definition
The default method of authentication used by the IEEE 802.11 standard
Term
Passive scanning
Definition
Scanning for a wireless device that listens for a beacon frame for a set period of time.
Term
Plain Text
Definition
Unencrypted text
Term
Pre-authentication
Definition
A technology that allows a device to become authenticated to an access point before moving into its range
Term
Preshared key (PSK)
Definition
An authentication protocol that uses a passphrase to generate the encryption key and must be created and entered into both the access point and all wireless devices prior to the devices communicating
Term
RC4
Definition
a cipher algorithm used in Wired Equivalent Privacy (WEP) that takes one character and replaces it with one character.
Term
Roaming
Definition
movement between cells of a wireless local area network
Term
Service Set Identifier (SSID)
Definition
The network name for the wireless network that can be any alphanumeric string fro 2 to 32 characters
Term
Shared key authentication
Definition
An optional Wired Encryption Privacy (WEP) authentication that uses challenge text for authentication
Term
Temporal Key Integrity Protocol(TKIP)
Definition
An encryption technology that replaces the Wired Equivalent Privacy (WEP) protocol
Term
Thin access point
Definition
An access point with limited functionality (it does not provide authentication or encryption)
Term
Wi-Fi (Wireless Fidelity) Alliance
Definition
A consortium of wireless equipment manufacturers and software providers to promote wireless network technology
Term
Wi-Fi Protected Access
Definition
The first set of standards set by the WiFi Alliance
Term
WiFi Protected Access 2 (WPA 2)
Definition
The second generation of WiFi protected access (WPA) security
Term
Wired Equivalent Privacy
Definition
The encryption mechanism of the IEEE 802.11 standard, considered to provide only low security
Term
Wireless probe
Definition
A device that can monitor the airwaves for traffic
Term
Wireless switch
Definition
A switch that contains authentication and encryption for wireless networks
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