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Net+ Sec Protocols

Network+ Security Protocols

QuestionAnswer
IPSec Internet Protocol Security A suite of protocols used to encrypt data packets -Designed by IETF for secure transmissions at the IP layer
IPSec Modes Transport Mode -Only the data is encrypted Tunnel Mode -The entire packet, including headers, is encrypted, making this mode more secure
L2TP Layer 2 Tunneling Protocol -An enhanced tunneling protocol that is used in multiprotocol VPN implementations -Is optimized to work with IPv6 and IPSec -It is an extension to the PPP protocol -Operates at the Data Link Layer -defined in RFC 2661
SSL Secure Sockets Layer -Enables secure communications over the Internet -Invented by Netscape -Uses a Public/Private key pair to encrypt and decrypt transmissions
Public/Private Key system and operation process A system used in SSL and other protocols to secure communications -The sender looks up the receiver's private key -It encrypts the data using that key -It sends the data to the receiver -The receiver decrypts the transmission using its Private key -T
WEP Wired Equivalent Privacy Encrypts communications between clients and wireless access points (WAPs) -Intended to simulate the physical security of a wired LAN -Uses a single, statically configured key for access control -Operates at the Physical and Da
WPA Wifi Protected Access Designed as an improved replacement for WEP
WPA Advantages -Supports Extensible Authentication Protocol (EAP) for user authentication -Supports Temporal Key Integrity Protocol (TKIP), which supports kry sdcrambling and integrity checking -Will be replaced by 802.11i when it is completed
802.1x An 802.11 WLAN authentication standard that uses EAP and supports user-level authentication through various methods (password, certificate, etc.)
802.1x Authentication Process -The supplicant (client) requests access from the authenticator (WAP) by sending an EAP start message -The authenticator sets the supplicant's client software to 'unauthorized', which prevents all traffic except for 802.1x traffic from being received -T
Created by: ibnpaul