The recent reveal of the key reinstallation attack (KRACK) caused much stir in the wireless LAN community. This post addresses the reality of the attack, what should be done immediately, and lessons we should learn from it.
The RF Explorer device is a useful tool for the price point. At under $300 U.S., the price is much easier to accommodate than other, more advanced, handheld spectrum analyzers. The device can be purchased here: http://rfexplorer.com/purchase/
RF wavelength calculations can be made quite simple with two basic formulas. One for feet and the other for meters. This blog post provides the formulas and an Excel spreadsheet for calculating the wavelengths for each 20 MHz channel center frequency in the 2.4 GHz and 5 GHz bands.
Modulation is defined as the process of manipulating a carrier signal so that it can represent intelligent information. Multiple kinds of modulation exist, but they fall into two general categories: digital modulation and analog modulation.
Yes, I am a Certified Wireless Network Expert (CWNE), and no- I'm not looking for work via this blog post. But I see things, I read things, and I hear things as a busy citizen of the wireless world that bring me to the keyboard on this topic. With the booming popularity of wireless networking as the preferred access method for a growing number of business and personal scenarios, it stands to reason that more people are "doing" WLAN. But there are is a huge delta between doing it and doing it right. And that's where your friendly neighborhood CWNE comes in.
The CWNP CWNE certification saw a greater than 20% growth in the year 2016. This includes only the approved CWNEs as of early November this year. With more applications in the pipeline, this is likely to result in a more than 25% growth rate in 2016 over 2015. Reaching 200 approved CWNEs is a significant milestone for this certification and the buzz in the field indicates a continued increase in growth rate for next year.
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