D-Link DWA-525 Specifikace stáhnout pdf (Strana 27)

27D-Link DWA-525 User Manual

Section 4 - Wireless Security

Wireless Security

Thissectionwillshowyouthedierentlevelsofsecurityyoucanusetoprotectyourdatafromintruders.TheDWA-525oers

thefollowingtypesofsecurity:

•WPA/WPA2-Personal  

•WPA/WPA2-Enterprise

What is WPA

™

WPA,orWi-Fi

ProtectedAccess,isaWi-FistandardthatwasdesignedtoimprovethesecurityfeaturesofWEP(WiredEquivalent

Privacy).

ThetwomajorimprovementsoverWEP:

•ImproveddataencryptionthroughtheTemporalKeyIntegrityProtocol(TKIP).TKIPscramblesthekeysusinga

hashingalgorithmand,byaddinganintegrity-checkingfeature,ensuresthatthekeyshavenotbeentampered

with.WPA2isbasedon802.11iandusesAdvancedEncryptionStandardinsteadofTKIP.

•Userauthentication,whichisgenerallymissinginWEP,throughtheextensibleauthenticationprotocol(EAP).

WEPregulatesaccesstoawirelessnetworkbasedonacomputer’shardware-specicMACaddress,whichis

relativelysimpletobesniedoutandstolen.EAPisbuiltonamoresecurepublic-keyencryptionsystemto

ensurethatonlyauthorizednetworkuserscanaccessthenetwork.

WPA/WPA2-Personal uses a passphrase or key to authenticate your wireless connection. The key is an alpha-numeric password

between8and63characterslong.Thepasswordcanincludesymbols(!?*&_)andspaces.Thiskeymustbetheexactsamekey

entered on your wireless router or access point.

WPA/WPA2-EnterpriseincorporatesuserauthenticationthroughtheExtensibleAuthenticationProtocol(EAP).EAPisbuilton

amoresecurepublickeyencryptionsystemtoensurethatonlyauthorizednetworkuserscanaccessthenetwork.

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