Solved

Question On Packet Sniffing.

Posted on 2004-09-28
6
240 Views
Last Modified: 2010-04-17
If i use Chr() characters to send information would it still be picked up by packet sniffers?
0
Comment
Question by:andyakira
  • 4
  • 2
6 Comments
 
LVL 55

Accepted Solution

by:
Jaime Olivares earned 125 total points
ID: 12175154
It will be unusual but will be detected almost inmediatly.
A little step forward is some kind of caesar ciphering algorithm, just sum a number to actual ascii value.

To encrypt:

Private Function CaesarEncode(str as String, key as Integer) as String
    CaesarEncode=""
    For i = 1 To Len(str)
        CaesarEncode= CaesarEncode & chr(asc(mid(str,i,1))+key)
    Next i
End Function

To decrypt:

Private Function CaesarDecode(str as String, key as Integer) as String
    CaesarDecode = ""
    For i = 1 To Len(str)
        CaesarDecode= CaesarDecode & chr(asc(mid(str,i,1))-key)
    Next i
End Function

Hope to be useful,
Jaime.
 
0
 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 12175159
Of course you have more sophisticated algorithms but I that will depend on the relevancy of your information.
0
 

Author Comment

by:andyakira
ID: 12175773
am i doing this right jaime. after encoding im sending this to the server CaesarDecode(Text2, 3) but the sniffer still picks up the real text, what steps should i be doing?
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 12175796
You have to send the returning string of CaesarEncode(), not the original Text2 variable.
0
 

Author Comment

by:andyakira
ID: 12175847
the problem is i dont own the server, i'm trying to make it send a message to my name on this server, so there is no way to hide the name part is there?
0
 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 12175946
If you refer to the heading information of the packets, then you can't, it will simply not reach your server.
Maybe any kind of secure layer like SSL will give you some privacy.
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
topping1 challenge 7 91
control image tags in a string ? 12 129
When i run adoquery my application freezes 26 166
Help Required 3 96
I know it’s not a new topic to discuss and it has lots of online contents already available over the net. But Then I thought it would be useful to this site’s visitors and can have online repository on vim most commonly used commands. This post h…
Does the idea of dealing with bits scare or confuse you? Does it seem like a waste of time in an age where we all have terabytes of storage? If so, you're missing out on one of the core tools in every professional programmer's toolbox. Learn how to …
In this fourth video of the Xpdf series, we discuss and demonstrate the PDFinfo utility, which retrieves the contents of a PDF's Info Dictionary, as well as some other information, including the page count. We show how to isolate the page count in a…
With the power of JIRA, there's an unlimited number of ways you can customize it, use it and benefit from it. With that in mind, there's bound to be things that I wasn't able to cover in this course. With this summary we'll look at some places to go…

770 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