Wi - Fi Protected Access(WPA)

The full name for the Wi - Fi Protected Access, have WPA and WPA2 two standard, it is a kind of protection wireless computer networks (Wi - Fi) security system, it is in the generation before should researchers wired equivalent encryption system found (WEP) several serious weaknesses and of generation.

The IEEE 802.11 WPA practices, is the most I standards in 802.11 I complete the transition plan before substitute WEP. The design can be used on WPA and all wireless network card, but not necessarily in the first generation with wireless access point. The WPA2 implementation of standard, but cannot complete with in some old nic. These are both provide good preservation ability, but also there are two obvious problems:

WPA or WPA2 must start and was chosen to replace WEP just useful, but most of the installation instructions listed the WEP first choice.

In the home and small office use may choose "personal" mode, in order to preserve the integrity of the language must needed than has taught users set of six to eight character password is long.

WPA is an interoperable based on standards of WLAN safety enhancement solutions can greatly enhance the existing and future wireless LAN system of data protection and access control level. WPA stems from the is formulating IEEE802.11 with standard and I keep prior to compatible. Deploy appropriate, WPA wireless local-area network (WLAN) users can ensure the data protection, and only authorized by the network users can access WLAN network.

Because WEP security of the already proof in 802.11 I agreement before by WPA, perfect for the user to provide a temporary solution. This standard data encryption adopted TKIP Protocol (Temporary authentication Protocol), a Key specific there are two models available, one kind is to use 802.1 x Protocol to the authentication; One is called prior PSK (pre-alpha - Shared Key Shared Key specific) mode.