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Wireless Network Security
In wireless communications, anyone with a wireless device within network range is capable of accessing its services. This is why security measures such as password protection are so important. There are several wireless security standards that strive to properly protect wireless networks from unauthorized intrusion.
WEP (Wired Equivalent Privacy)
WEP uses RSA RC4-based encryption, limiting communication only to those with a proper network access key. WEP does have its flaws however. Specifically, the encryption key is often reused, which makes a break-in possible on high-traffic networks. WEP is not an entirely trusted network security provider.
WPA (WiFi Protected Access)
WPA has resolved the issues with WEP and is now the industry standard for secure wireless networks. With WPA, TKIP (Temporal Key Integrity Protocol) is used so that that the encryption key is never recycled. The key changes for every transmitted frame. WPA has also increased the initialization vector length from 24 to 48 bits. A new standard, WPA2, has also been introduced. Instead of using TKIP, WPA2 operates with AES (Advanced Encryption Standard). AES is considered the strongest encryption available for wireless networks.
With WPA or WPA2 encryption standards and a randomly chosen password of 20 characters, a wireless network is considered secure.
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