312-50V11 · Question #983
Which wireless security protocol replaces the personal pre-shared key (PSK) authentication with Simultaneous Authentication of Equals (SAE) and is therefore resistant to offline dictionary attacks?
The correct answer is A. WPA3-Personal. WPA3-Personal replaces the traditional pre-shared key handshake with Simultaneous Authentication of Equals (SAE), which provides resistance to offline dictionary attacks by never transmitting a verifiable password hash.
Question
Which wireless security protocol replaces the personal pre-shared key (PSK) authentication with Simultaneous Authentication of Equals (SAE) and is therefore resistant to offline dictionary attacks?
Options
- AWPA3-Personal
- BWPA2-Enterprise
- CBluetooth
- DZigBee
How the community answered
(28 responses)- A93% (26)
- B4% (1)
- C4% (1)
Why each option
WPA3-Personal replaces the traditional pre-shared key handshake with Simultaneous Authentication of Equals (SAE), which provides resistance to offline dictionary attacks by never transmitting a verifiable password hash.
WPA3-Personal uses SAE (defined in IEEE 802.11-2016 as a Dragonfly-based handshake) in place of the WPA2-Personal PSK 4-way handshake. SAE is a zero-knowledge proof protocol where both parties prove knowledge of the password without transmitting anything that can be captured and brute-forced offline. This property - called forward secrecy - means even if an attacker records the handshake, they cannot perform an offline dictionary attack against it, which was a known weakness of WPA2-Personal.
WPA2-Enterprise uses 802.1X with a RADIUS authentication server and EAP methods rather than PSK or SAE, and it does not replace PSK with SAE.
Bluetooth is a short-range wireless personal area network protocol entirely unrelated to the Wi-Fi (IEEE 802.11) security standard family that includes WPA2 and WPA3.
ZigBee is a low-power mesh networking protocol designed for IoT devices and operates on IEEE 802.15.4, making it unrelated to Wi-Fi authentication protocols like WPA3.
Concept tested: WPA3-Personal SAE authentication and offline attack resistance
Source: https://www.wi-fi.org/discover-wi-fi/security
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