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Rss FeedEdison analysts put the management software of an HP EVA system through a series of typical day-to-day storage management tasks. The same tasks were also evaluated on similar systems from NetApp and EMC. This study demonstrates how the superior user interface and virtualization offered by the HP EVA storage system can provide organizations with the benefits of higher administrative efficiency combined with the potential ability to utilize less expensive human resources.
Get the latest on storage technologies that allow IT professionals to better cope with new IT demands. Learn how storage technologies can help you successfully tackle e-Discover, regulatory compliance, green data center initiatives and the data explosion. Get all the details now.
HP's Network Lifestyle Management can help you automate network processes and improve NOC efficiency. This webinar is part three of a four part series on Business Services Management (BSM) evolution to help you better align IT with business objectives. Register for this on-demand webcast now.
WPA is an industry specification the Wi-Fi Alliance pushed into adoption. This cooperative of wireless manufacturers - worried that WEP would stall sales - took an early draft of the IEEE 802.11i wireless security standard, pulled out some harder-to-implement pieces, such as AES encryption, and created WPA. Vendors shipped certified WPA products just five months after announcing the specification.
WPA enhances security in several ways. The most obvious is in the encryption protocol. WPA uses TKIP to improve the key usage in wireless encryption. Although TKIP uses the same base encryption algorithm - RC4 - as WEP, the way it selects and changes keys resolves many of the issues surrounding WEP. WPA also improves the integrity aspects of 802.11 by making it virtually impossible to inject messages into a wireless conversation or to modify a message on the fly.
The primary improvement in WPA is the per-session encryption key. Every time a station associates, a new encryption key is generated based on some per-session random numbers and the media access control (MAC) addresses of the station and the access point. WPA sounds like a major improvement, and it is - if it's used correctly.
Unfortunately, the easiest way to use WPA actually makes it easier to crack than WEP. When 802.1X authentication is not used in WPA, a simpler system called Pre-Shared Key (PSK) is. PSK offers a long-lived password that everyone who wants to connect to the WLAN has to know. All the wireless devices we tested with the exception of the Linksys adapter card support WPA-PSK (see graphic, below.)
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