Tech moves fast! Stay ahead of the curve with Techopedia!
Join nearly 200,000 subscribers who receive actionable tech insights from Techopedia.
Wi-Fi Protected Access (WPA) is a security standard to secure computers connected to a Wi-Fi network. Its purpose is to address serious weaknesses in the previous system, the Wired Equivalent Privacy (WEP) standard.
Wi-Fi Protected Access (WPA) and WPA2 are concurrent security standards. WPA addressed the majority of the IEEE 802.11i standard; and the WPA2 certification achieved full compliance. However, WPA2 will not work with some older network cards, thus the need for concurrent security standards.
Wi-Fi Protected Access included a 128-bit “temporary key integrity protocol” (TKIP) which dynamically produces a new key for each data packet; WEP only had a smaller 40-bit encryption key which was fixed and had to be manually entered on wireless access points (APs). TKIP was designed to be used with older WEP devices, with updated firmware. However, researchers did discover a security flow in TKIP concerning weaknesses in retrieving the keystream of data packets; it could only encrypt “short” (128 byte) data packets. This caused TKIP to be replaced with CCMP (sometimes called “AES-CCMP”) encryption protocol in WPA2, which provides additional security.
Applicable to both WPA and WPA2, there are two versions targeting different users:
Do you work in the tech industry? Help us learn more about why the gender gap still exists in tech by taking this quick survey! Survey respondents will also be entered to win a $100 Amazon Gift Card!