Comparison between WPA and WPA2
The new iphone 3G that will be released on July 2008 is using WPA2 for their secure wireless connection. However there is a lot of issue and discussion about this feature risk for iphone security. Before we're going to discuss later about this feature, let we see a simple comparison between WPA and WPA2.
Both of standard is released by Wi-Fi Alliances based on IEEE 802.11i standard
| No | Area | WPA | WPA2 |
| 1 | Release Date | April 2003 | July 2004 |
| 2 | Strong encryption and authentication support | Infrastructure networks only | Infrastructure and ad-hoc networks, means that your device can talk with other device (ad-hoc networks) in secure environment |
| 3 | Encryption Mechanism | Temporal Key Integrity Protocol (TKIP), based on the RC4 cipher |
CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol) based on Advanced Encryption Standard (AES) cipher |
| 4 | Functionality | A WPA compliant device however can implement AES optionally | WPA2 compliant devices must be capable of both though you’re not required to use AES. |
Source:
Explaining WPA2.
Understanding the updated WPA and WPA2 standards.
Don’t assume WPA2 is more secure than WPA
Image from popsci.com
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