What protocol increased the initialization vector's length from 24-bits to 48-bits to enhance security?

The protocol that increased the initialization vector's length from 24-bits to 48-bits to enhance security is Wi-Fi Protected Access, commonly known as WPA. This improvement was made to strengthen the encryption process used in securing wireless networks. By extending the initialization vector, WPA aimed to provide better protection against certain types of attacks that exploited the shorter 24-bit length found in its predecessor, Wired Equivalent Privacy (WEP).

WPA was designed as a transitional solution to address the vulnerabilities inherent in WEP, particularly regarding its weak IV, which made it susceptible to attack. The longer 48-bit IV in WPA significantly reduced the chances of collisions and improved the overall security of the encryption mechanism utilized for transmitting data over wireless networks.

This enhancement laid the groundwork for subsequent protocols like WPA2 and WPA3, which introduced further advancements in connectivity and security but were not directly involved in this specific change regarding the IV length.