Which protocol is commonly used for wireless encryption?

Wi-Fi Protected Access (WPA) is widely recognized as a key protocol for wireless encryption. This protocol was developed to enhance the security of wireless networks, addressing vulnerabilities found in earlier protocols such as WEP (Wired Equivalent Privacy). WPA provides a more robust encryption method, employing techniques like Temporal Key Integrity Protocol (TKIP) and, in its more secure iteration, WPA2, it utilizes Advanced Encryption Standard (AES).

These features ensure that data transmitted over wireless networks is encrypted, reducing the risk of unauthorized access and data breaches. In contrast, while IPv6 is the successor protocol to IPv4 providing a vast address space for internet-enabled devices, it does not relate to wireless encryption. Hypertext Transfer Protocol (HTTP) pertains to the transmission of web data, but it lacks the security features necessary for encrypting wireless communications. Similarly, Transmission Control Protocol (TCP) is foundational for managing data transmission over networks, but it does not provide encryption functionalities on its own. Therefore, WPA stands out as the appropriate choice for wireless encryption.