Wireless networks are an easy way to connect our laptop, tablet or phone to the internet. Instead of using the traditional RJ45 cabling , the devices just needs to have a wireless card. There are three main types of encryption in wireless network:
Wired Equivalent Privacy(WEP) which is available in 64-bit and 128-bit . It uses RC4 encryption (stream cypher) with 40-bit key and 24-bit initialization vector for encryption. It supports the Open authentication method with the MAC address and the shared authentication method with pre-shared keys.
Wifi Protected Access (WPA) : It uses Temporal Key Integrity Protocol (TKIP) for encryption. It supports pre-shared key (WPA personal) and 802.1x (WPA Enterprise) authentication.
Wifi Protected Access 2 (WPA2) or 802.11i: It uses Advanced Encryption Standard with either TKIP or counter mode with cipher block chaining message authentication code (CBC-MAC). It also supports pre-shared key (WPA2 personal) and 802.1x (WPA2 Enterprise) authentication.