Evolution of Wi-Fi Protected Access: Security Challenges

Security for Wi-Fi networks is now being upgraded to a new version, WPA3, after vulnerabilities and weaknesses in the previous versions were correctly patched. The most critical upgrades include 1) data traffics already sent remain a secret even if a preshared password of the Wi-Fi network is compromised by an adversary, and 2) weak passwords are immune to online and offline guessing attacks. This article explains in detail where in the previous versions these weaknesses originated and how in the new version they are rectified. Further, this article checks if there is still room for improvement, especially in security algorithms introduced in the new version.