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WPA implemented a subset of a draft of 802.11i. The Wi-Fi Alliance refers to their approved, interoperable implementation of the full 802.11i as WPA2 , also called RSN (Robust Security Network). 802.11i makes use of the Advanced Encryption Standard (AES) block cipher , whereas WEP and WPA use the RC4 stream cipher .
WPA-Personal and WPA2-Personal remain vulnerable to password cracking attacks if users rely on a weak password or passphrase. WPA passphrase hashes are seeded from the SSID name and its length; rainbow tables exist for the top 1,000 network SSIDs and a multitude of common passwords, requiring only a quick lookup to speed up cracking WPA-PSK. [34]
OPCS-4 is an alphanumeric nomenclature, and uses a four character code layout; similar to that found in ICD-10. The first character is always a letter. The first character is always a letter. With the exception of the O-codes mentioned above, the letter indicates the chapter the code is from.
The WPA profile also provides optional support for the AES-CCMP algorithm that is the preferred algorithm in 802.11i and WPA2. WPA Enterprise provides RADIUS based authentication using 802.1X. WPA Personal uses a pre-shared Shared Key to establish the security using an 8 to 63 character passphrase. The PSK may also be entered as a 64 character ...
In order to mount a brute-force or dictionary based WPA password cracking attack on a Wi‑Fi user with WPA or WPA2 enabled, a hacker must first sniff the WPA 4-way handshake. The user can be elicited to provide this sequence by first forcing them offline with the deauthentication attack.
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Download QR code; Print/export Download as PDF; Printable version; In other projects ... (WPA), where the method is called WPA-PSK or WPA2-PSK, and also in the ...
WPA was designed as an interim software-implementable solution for WEP that could forestall immediate deployment of new hardware. [22] However, TKIP (the basis of WPA) has reached the end of its designed lifetime, has been partially broken, and has been officially deprecated with the release of the 802.11-2012 standard.