Solved

How WEP/WPA work

Posted on 2011-09-06
3
521 Views
Last Modified: 2012-05-12
Please confirm my below understanding :-

1) WPA or WEP is a security protocol install inside Access Point ( WAP ) and not on the    
    wireless laptops

2) Either wireless laptop send data to AP or AP send data to wireless laptop , the data is  
    encrypted by WEP/WPA that reside in AP.

    In the other words , the data is encrypted bi-directionally by WEP/WPA which is  in AP .

Please point out whether (1) and (2) are correct .

   
0
Comment
Question by:kcn
  • 2
3 Comments
 
LVL 3

Expert Comment

by:nbhu
Comment Utility
Hi kcn,
Neither is exectly true, they are security protocols that are used on all hardware accessing the network over wireless connection.
WEP is an older, more vulnerable one, WPA or WPA2 is always a better,safer choice.
on simple networks WPA-PSK can be used, you have to set a passphrase on the router/access point, and set it on the connecting clients too.
A security key is generated from the passphrase, and it is used to code/decode data packets sent over the network.
Regards, nbhu
0
 

Author Comment

by:kcn
Comment Utility
I am not asking comparison between WEP and WPA2 , I know their differences .

I am asking whether WEP/WPA is only reside in AP or also reside in laptop ??

Since ( assuming ) WEP or WPA only reside in AP , when AP send data to client (laptop) , AP will use WEP/WPA2 to encrpyt the data , however when client ( laptop) send data to AP whether the data from laptop is encrypted by WEP/WPA that reside in AP too ??

I am not interested in WEP or WPA /WPA2 comparison.
0
 
LVL 3

Accepted Solution

by:
nbhu earned 500 total points
Comment Utility
Hi,
both directions are encrypted of course. The source(sender: AP or laptop) is encrypting data packets, sends it over the radio link, the receiver(the other device) is decrypting the packet and processing it.
It is symmetrical, every communicating device has the encrypt/decrypt algorithms.
Regards, nbhu
0

Featured Post

How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

Join & Write a Comment

Even if you have implemented a Mobile Device Management solution company wide, it is a good idea to make sure you are taking into account all of the major risks to your electronic protected health information (ePHI).
Don’t let your business fall victim to the coming apocalypse – use our Survival Guide for the Fax Apocalypse to identify the risks and signs of zombie fax activities at your business.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

771 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now