As we know that wireless technology
becomes very famous among all the aspects of different technologies of
computer networking of present era. Wireless networks really provide
the convenient and easy approach to communications between different
areas. WiFi is commonly called as wireless LAN, it is one of those
networks in which high frequency radio waves are required for
transmission of data from one place to another. WiFi operates on
several hundreds feet between two places of data transmission. This
technology only works on high frequency radio signals otherwise it will
not work. Nowadays this technology is used as office or home network
and also in many electronic devices.
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Hoe it Works?
Basically the working of WiFi is
based on transmission process. In this process the data which is going
to be transferred has to be transmitted in the form of radio signals,
and then the device transmits these signals to antenna which is used
for transferring of data. This antenna is which is used for
transmission purpose is connected with a wired LAN or DSL. A router is
also connected with the device which is able to receive the signals and
also help in decoding them. Then this information is spread on
internet.
Features of WiFi Security:
Some important features of WiFi security which are responsible of reliability of such technology are as follows.
- Confidentiality
- Data Integrity
- Access Control
- Encryption
- Association
- Authentication
Two types of authentications i.e. open system authentication and shared key authentication.
WiFi Security Problems and Solution
There are so many security problems
of WiFi or wireless LAN which let the wireless LAN down. Some of the
major problems with their solutions are given below
- Modulation Spectrum Technique: The technique of spectrum modulation which wads used in the early technology of WiFi has very low security that anyone can use your network and hack your code of activity.
Solution: The
solution which scientist suggest for this problem is that we can use
latest model or technology of modulation spectrum to protect the WiFi
fro such problem.
- Change Default Passwords
Some hackers also hack your default password that was assign by manufacturers. Hackers used all the default passwords and hack your WiFi network.
Solution: When you use the WiFi system you should change the default password as soon as possible and set a new password of your choice.
- Wireless Equivalent Privacy (WEP):
Some people also
suggest for using Wireless Equivalent Privacy WEP to have a secure
working on WiFi network. Sometimes it is very insecure to use WEP
technology because it is very easy to break the encryption of WEP.
Solution: This security problem of WiFi can be reduced by upgrading the wireless encryption to Virtual Private Network (VPN).
- Crackers:
One of the major problems of WiFi security are crackers.
Solutions: We can prevent the crackers by using the no. of methods of recovery of WiFi security such as placement of access points in the desired area, as WiFi is the combination of both wireless and the wired devices so, by dividing the both portions in the different segments we can avoid such problem of crackers.
- Service Set Identifier (SSID):
Another major security problem of WiFi security is breaking of service set identifier SSID. It is very easy and convenient to break the service set identifier SSID by anyone with the help of any kind of sniffing tool.
Solution: This
problem of WiFi can be overcome by using the encryption technology such
as RADIUS etc. By applying encryption of data we can protect our
SSID.
Future of Wifi security:
The future of WiFi
security will be very bright if we overcome the security problems in
the present technologies. And if we protect WiFi from these security
problems we have long way to produce great technologies under WiFi
networking in future.
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