Lec 8: Wireless Security

The chapter 8 we learn about the wireless security.Wireless network specifications ware originally defined in IEEE's 802.11 standard.There are now a series of 802.11 standard, and various implementations of wireless network now occupy several more 802 standard. The original 802.11 standard contained several security measures, including
- Disable the services set identifier (SSID) broadcast
- MAC addressing filtering
- Wired Equivalent Privacy (WEP) authentication
- WEP data encryption

Security in 802.11 was found to be seriously flawed in several areas 802.11 was developed to correct the shortcomings of security in 802.11. The WiFi also improved security for wireless networks with WiFi protected Access (WPA, WPA2) for home network use, called personal, and for business network use, called Enterprise. WPA uses an acceptable encryption algorithm that is strong and easier on the devices performing the encryption. WPA2 uses a significantly stronger algorithm that is considered uncrackable, but the performence of devices may suffer with the heavy work load.