IT 263 Introduction aux Réseaux Locaux et à la Sécurité Informatique I



Chapter 04: WiFi Networks

Wireless LAN Norms

Norms

Wireless Norms
IEEE Max Data Rate Comments
802.11-1997 2 Mbps The original 802.11 standard ratified in 1997
802.11b 11 Mbps Introduced in 1999
802.11a 54 Mbps Introduced in 1999
802.11g 54 Mbps Introduced in 2003
802.11n 600 Mbps HT (high throughput), introduced in 2009
802.11ac 6.93 Gbps VHT (very high throughput), introduced in 2013
802.11ax 4x 802.11ac High Efficiency Wireless, Wi-Fi6; expected late 2019; will operate on other bands too, as they become available

Security modes

Combinaison des méthodes d’authentification et de chiffrement

Authentification

Authentification par systeme ouvert
Cle WEP Wired Equivalent Privacy
Cle PSK

Chiffrement

Cle WPA Wi-Fi Protected Access
Cle WEP Wired Equivalent Privacy
Cle TKIP
Cle AES

Wireless Security Protocols

WEP "Wired Equivalent Privacy"
WTLS "Wireless Transport Layer Security"
WPA "Wi-Fi Protected Access "
EAP Extensible Authentication Protocol

clé WEP (WiredEquivalent Privacy). Le cryptage se fait sur 64 ou 128 bits
La norme WPA (Wi-Fi Protected Access) met en place un système de clé dynamique.

Other Configuration

Mac Address Filtering
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