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Practical Embedded Security by Timothy Stapko

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CHAPTER 6 Wireless

Wireless Technologies

Wireless applications essentially combine all of the reasons we need security for embedded systems with limited resources. By definition, many wireless devices will require limited resources, because they will be designed to run on batteries or in environments where available resources must be given to the communications hardware. In the world of inexpensive embedded systems (we exclude inexpensive consumer products from this category; we are referring more to industrial-type controllers), wireless technologies are only just starting to make inroads into the industry. Sure, cellular phones and PDA’s have had wireless technologies built-in for some time, but those implementations are specialized and not ...

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