Oct
19
In the first part of this series, we examined WEP as presented in our CCNA Wireless Course. To read that first part, click here. The WiFi Alliance introduced Wi-Fi Protected Access (WPA) in 2003 as a replacement technology for WEP. WPA is based on the 802.11i draft version 3. This improved technology relies upon Temporal Key Integrity Protocol (TKIP) to automate the changing of keys. Remember that a huge issue for WEP was the single, static key in use. Interestingly, WPA uses the RC4 encryption... Read More
Oct
16
In this series of blog posts, we will examine WLAN security mechanisms in an even greater detail than in our popular 5-Day CCNA Wireless course. We will begin with one that is now considered legacy due to major weaknesses that were quickly discovered in its implementation. This security mechanism receives the least coverage in the CCNA Wireless materials and exam, because, as we stated, it is indeed considered legacy. The official title for this technology is Preshared Key Authentication with... Read More

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