WPA provides stronger encryption than WEP through use of either of two standard technologies: Temporal Key Integrity Protocol (TKIP) and Advanced Encryption Standard (AES). WPA also includes built-in authentication support that WEP does not offer. Overall, WPA provides comparable security to VPN tunneling with WEP, with the benefit of easier administration and use.
A variation of WPA designed for use on home networks is called WPA Pre Shared Key or WPA-PSK for short. WPA-PSK is a simplified but still powerful form of WPA. To use WPA-PSK, a person sets a static key or passphrase as with WEP. But, using TKIP, WPA-PSK automatically changes the keys at a preset time interval, making it much more difficult for hackers to find and exploit them. Another variation of WPA called WPA contains other technical enhancements.
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