Real 802.11 Security: Wi-Fi Protected Access and 802.11i

Why This Book Now?

Ask anyone with a computer whether they want to be protected against strangers reading their data or planting viruses. Not really worth the effort, is it? Everyone wants this type of protection. However, most Wi-Fi wireless LANs operating in 2003 have no effective security. In fact, so many Wi-Fi LANs operate without security that an entire new hobby, "war driving," has sprung up in which folks drive around detecting and connecting to unsuspecting networks for fun. There are Web sites that publish the location and details of unprotected networks that are found—there are bound to be some near you! This problem is the result of people being unaware of the danger, but you are different, right?

The fact that you are reading this preface means that you are aware of the need to take active steps to implement security. Already, you may have implemented some security approach, perhaps as recommended by the supplier of the equipment you installed. Would that this were enough. The horrible truth is that the security systems shipped with Wi-Fi systems over the period from 1999 to 2002 are completely inadequate, some would say completely broken. Any computer-literate person can now download from the Internet tools that will attack and break into the first-generation Wi-Fi systems.

This book will show you how to tip the balance back in your favor—how to establish real security within your Wi-Fi LAN. It is not just about configuring your computer correctly or choosing good passwords, although these things are important. There are many books that focus on "parameter setting." What we describe in this book is a whole new approach to wireless LAN security enabled by the recent development of new core technology for Wi-Fi. The new developments achieve what no amount of reconfiguration can do: they solve the problem at the source. In this book we show how the new approaches work and how they should be applied to maximum effect. Whether you are a system administrator or an advanced home user, this book will open your eyes to current weaknesses and practical, implementable solutions.

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