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Wpa supplicant

Open-source implementation of IEEE 802.11i

Field	Value
name	wpa_supplicant
screenshot	[[File:wpa gui-screenshot.png	227px	Screenshot of wpa gui]]
caption	Screenshot of wpa_gui
developer	Jouni Malinen and others
released
latest_release_version	2.11{{cite web
url	https://w1.fi/cgit/hostap/plain/wpa_supplicant/ChangeLog
title	Index of /releases
publisher	w1.fi
date	2024-07-20
accessdate	2024-09-19}}
latest_release_date
programming_language	C
operating_system	Cross-platform
genre	WLAN tools
license	BSD
website

wpa_supplicant is a free software implementation of an IEEE 802.11i supplicant for Linux, FreeBSD, NetBSD, QNX, AROS, Microsoft Windows, Solaris, OS/2 (including ArcaOS and eComStation) and Haiku. In addition to being a WPA3 and WPA2 supplicant, it also implements WPA and older wireless LAN security protocols.

Features

Features include:

WPA-PSK and WPA2-PSK ("WPA-Personal", pre-shared key)
WPA3
WPA with EAP ("WPA-Enterprise", for example with RADIUS authentication server)
RSN: PMKSA caching, pre-authentication
IEEE 802.11r
IEEE 802.11w
Wi-Fi Protected Setup (WPS)

Included with the supplicant are a GUI and a command-line utility for interacting with the running supplicant. From either of these interfaces it is possible to review a list of currently visible networks, select one of them, provide any additional security information needed to authenticate with the network (for example, a passphrase, or username and password) and add it to the preference list to enable automatic reconnection in the future.

The graphical user interface is built on top of the Qt library.

wpa_supplicant can authenticate with any of the following EAP (Extensible Authentication Protocol) methods: EAP-TLS, EAP-PEAP (both PEAPv0 and PEAPv1), EAP-TTLS, EAP-SIM, EAP-AKA, EAP-AKA', EAP-PWD, EAP-EKE, EAP-PSK (experimental), EAP-FAST, EAP-PAX, EAP-SAKE, EAP-GPSK, EAP-IKEv2, EAP-MD5, EAP-MSCHAPv2, and LEAP (requires special functions in the driver).

Vulnerability to KRACK

wpa_supplicant was especially susceptible to KRACK, as it can be manipulated to install an all-zeros encryption key, effectively nullifying WPA2 protection in a man-in-the-middle attack. Version 2.7 fixed KRACK and several other vulnerabilities.

References

"wpa_supplicant".
(2019-03-17). "haiku/wpa_supplicant". Haiku.
"wpa_supplicant(8) - Linux man page".
"wpa_supplicant".
"Linux WPA Supplicant (IEEE 802.1X, WPA, WPA2, RSN, IEEE 802.11i)". w1.fi.
"Key Reinstallation Attacks disclosure website".

Info: Wikipedia Source

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