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A presentation on
WIRELESS SECURITYPRESENTATION BY:
PARV SHARMA3307409CSE 4th Yr
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WIRELESS
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Wireless is the transfer of informationover a distance without
the use of electricalconductors or wires. The distances involvedmay
be short (a few meters as in televisionremote control) or long
(thousands or
millionsof kilometers for radiocommunications).
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HISTORY OF WIRELESS
The first wireless transmitters went on the air in theearly
century using radiotelegraphy Later, as
modulation,made it possible to transmit voices andmusic via
wireless, the medium came to be called"radio." With the advent of
television, fax, datacommunication, and the effective use of a
largerportion of the spectrum, the term "wireless" has
been resurrected.
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WHY WIRELESS ESSENTIAL
Delivers real time information.
Helps in quick and accurate decision making.
Continuous supply of information whenever needed.
Increases productivity.
Reduces costs via more accurate and timely datacapture.
Incorporate professionalism in the working in the
organization.
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EXAMPLES OF WIRELESS EQUIPEMENTCellular phones and pagers
Global Positioning System (GPS)
Cordless computer peripherals
Cordless telephone setsHome-entertainment-system control
boxes
Remote garage-door openers
Two-way radiosBaby monitors
Satellite Television
Wireless LAN or local area networks
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TYPES OF WIRELESS NETWORK
Wireless local area networks
Personal area networks
Wide area networks/ Metropolitan AreaNetwork
Mobile Device Networks
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WIRELESS BROAD BAND ACCESS
Wi-Fi
Wi-MAX
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SECURITY REQUIREMENT IN WIRELESS
Authenticity : A third party must be able to verifythat the
content of a message has not been changed
in transit.
Nonrepudiation : The origin or the receipt of aspecific message
must be verifiable by a third party.
Accountability : The actions of an entity must be
traceable uniquely to that entity
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SECURITY METHOD IN WIRELESS FIELD
WEP (Wired Equivalent Privacy)
SSID(Service Set Identifier)MAC(Media Access Control)
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INTRODUCTION TO WIRELESS NETWORK
Wireless networks serve as the transport mechanismbetween
devices and among devices and the
traditional wired networks (enterprise networks andthe
Internet).
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NETWORK TOPOLOGY STAR TOPOLOGY
RING TOPOLOGY
MESH TOPOLOGY
BUS TOPOLOGY
TREE TOPOLOGY
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WIRELESS SECURITY
Is the prevention of unauthorized accessor damage to computers
using wirelessnetworks. Wireless networks are verycommon, both for
organizations andindividuals.
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TYPES OF UNAUTHORIZED ACCESS
ACCIDENTIAL ASSOCIATION
MALICIOUS ASSOCIATION
ADHOC NETWORK NON-TRADITIONAL NETWORK
IDENTITY THEFT
MANIN-THE-MIDDLE ATTACKS
DENIAL OF SERVICE
NETWORK INJECTION
CAFFE LATTE ATTACK
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ATTACK METHODS
HUMAN ERROR
ROGUE ACCESS POINT
WARCHALKING
MAC ADDRESS SPOFING
NOISY NEIGHBOURS IMPROPER DESIGN
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BASIC DEFENCE IN WIRELESS SECURITY
WEP(WIRELESS ENCRYPTION PROTOCOL)
MAC ADDRESS BLOCKING
DITCH THE DEFAULT BEACON INTERVALS
CONTROLLING RESET
DISABLE DHCP
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INTRODUCTION TO 802.11 SECURITY
The IEEE 802.11 specification identified several servicesto
provide a secure operating environment. The securityservices are
provided largely by the Wired Equivalent
Privacy (WEP) protocol to protect link-level data duringwireless
transmission between clients and access points.WEP does not provide
end-to-end security, but only forthe wireless portion of the
connection.
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SECURITY FEATURE OF 802.11 AS STANDARD
A.AUTHENTICATION
B.CONFIDIENTIALITY
C.INTEGRITY
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UNDERSTAND 802.11 FAMILY1.802.11
2.802.11A
3.802.11B
4.802.11G
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FUTURE OF WIRELESS
1.ULTRA WIDE BAND
2.COGNITIVE RADIO
3.MILLIMETER WAVE RADIO TECHNOLOGY
4.MULTIMODE
5.4G
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SOME SNAPS OF WIRELESS REVOLUTION
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QUESTIONS
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QUESTIONS
