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1. #Wep vs wpa vs wpa2 which is best drivers
2. #Wep vs wpa vs wpa2 which is best code
3. #Wep vs wpa vs wpa2 which is best mac

When the 802.11i standard is ratified RSN (WPA2) compatible equipment will begin to appear. The purist would argue that anything less is the equivalent of no security at all. ConclusionĨ02.11i is by far the strongest security system for wireless networks. The end result is encryption that is much harder to break than even WPA.

The encryption process is complex, but again the administrator does not need to be aware of the intricacies of the computations. Messages are encrypted using a secret key (128bits) and a 128bit block of data. Fortunately the administrator only needs to provide a single master key. AES/CCMP requires 512bits to accommodate all the keys, less than TKIP.Īlso like TKIP master keys are not used directly, but are used to derive other keys. RSN defines a hierarchy of limited life keys, similar to TKIP. As a result WEP keys were often not changed making it easier for hackers.

Many administrators found it impractical to manage keys in larger networks. One of the worst aspects of WEP was the management of the secret keys. Changing even one bit in a message produces a totally different result.

#Wep vs wpa vs wpa2 which is best code

CCMP computes a Message Integrity Check (MIC) using the well known, and proven, Cipher Block Chaining Message Authentication Code (CBC-MAC) method. AES is a block cipher, operating on blocks of data 128bits long.ĬCMP is the security protocol used by AES. However the encryption mechanism is much more complex and does not suffer from the problems associated with WEP. It is the equivalent of the RC4 algorithm used by WPA. What is AES/CCMP?Īdvanced Encryption Standard (AES) is the cipher system used by RSN.

#Wep vs wpa vs wpa2 which is best mac

In the transitional period both RSN and WEP equipment will be supported, (in fact WPA/TKIP was a solution designed to make use of older equipment) but in the longer term WEP devices will be phased out.Ĩ02.11i allows for various network implementations and can use TKIP, but by default RSN uses AES (Advanced Encryption Standard) and CCMP (Counter Mode CBC MAC Protocol) and it is this which provides for a stronger, scalable solution.

#Wep vs wpa vs wpa2 which is best drivers

This requires new hardware and software drivers making a fully compliant RSN network incompatible with existing WEP equipment. In RSN wireless devices need to support additional capabilities. What is 802.11i?Ĩ02.11i uses the concept of a Robust Security Network (RSN). This is the new 802.11i standard, also known as WPA2 by the WiFi Alliance. To this end the standards committee decided to design a new security system from the ground up. Although unlikely, the possibility of new weaknesses being discovered still exists.Ī completely new security system, avoiding the design flaws of WEP entirely, represents the best long term, scalable solution to wireless LAN security. It still relies on the RC4 encryption algorithm and TKIP (Temporary Key Integrity Protocol). However WPA is in the end a compromise solution. WPA is a practical solution that will provide more than adequate security for most wireless network applications. It addresses the weaknesses of WEP and the result is a very secure security system that is backwardly compatible with most existing WiFi compliant equipment. WPA has, rightly, been admired as a masterpiece of retro engineering.