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Highlighting the shortcomings of the Wi-Fi Wired Equivalent Privacy (WEP) security standard, Microsoft (Quote, Company Info) on Monday rolled out its own alternative for Windows XP users, new software that promises increased security in the areas of data encryption and user authentication.
Microsoft announced the availability of a free XP download with support for the standards-based Wi-Fi Protected Access (WPA), a network security solution from the Wi-Fi Alliance.
Microsoft's XP update would tweak the way the OS communicates to the Wi-Fi protocol. Instead of having one encrypted key for everyone to connect to the network, Microsoft said its WPA update would provide separate keys for each system connecting to the Wi-Fi network.
The move comes as researchers continue to decry weaknesses in WEP, which is the de-facto security tool for the Wi-Fi/802.11 standard. Various WEP vulnerabilities such as the plaintext attack, bit flipping attack, and statistical analysis attack have been well publicized.
WEP (define), which is designed to provide the same level of security as that of a wired LAN, is considered weak because it uses RC4 encryption algorithm, a stream cipher, for encrypting packets. WEP's inability to have per user/session keys and the lack of re-keying support to allow changing the encryption key frequently have also been highlighted as major weaknesses, according to security research.
Source and more: Internet News
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