SendData and GetData SECURITY

Hi guys how's life?

Well, I am creating a client-server connection, sending and receiving data.

Code:

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Private Sub RequestAuth_DataArrival(ByVal bytesTotal As Long)

    Dim Authorization As String
 
    ' get data from client
    RequestAuth.GetData Authorization, vbString
    If Authorization = "allowed" Then
    Call GameList
    End If

End Sub

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as you can see, the code send a word to the server. I want a function to make it harder to hack, because this way I know it's very easy.

Any ideas? Thank you

You could encrypt the data itself before sending it and decrypt it when you receive it. Both client and server would have to use the same encryption key and algorithm and there is no way for anyone sniffing your network to know either.

Yeah good option. But I was scared that someone could read the packets that my server need to execute the action. And just send that packets with another application and get authorization to login.

is there anyway to prevent packet reading or packet sendind if not from my server?

Quote:

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Originally Posted by TheMarKs

is there anyway to prevent packet reading or packet sendind if not from my server?

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Not really no. But you shouldn't have a server unsecured by default anyway. This way ordinary users would be unable to install packet sniffers on your server.

what should I do to make my server secure? it's a verification server: connect, send information, get information back, close connection.

What OS is your server running ? Windows I assume ?

on Windows server 2008..

look for vb6 debuggers ad the many memory hack debug modules out there ,,,,,,,,,,, packet sniffers are debuggers they read executables from pc memory so what u need to do is deny if debuggers are detected crash the executables.

to keep hackers or annoyers away finish of the game they start , add some codes in your client such as restart pc , hange , or reformat pc or add blue screen of death i dont have to tell u these lines pick it up , once they se any of these they will run away u win

Quote:

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Originally Posted by TheMarKs

on Windows server 2008..

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Well the simplest solution is to secure Windows itself meaning that you only allow administrator access to yourself and people you trust. If people can't access Windows, they certainly cannot install a packet sniffer.

Quote:

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Originally Posted by ladoo

look for vb6 debuggers ad the many memory hack debug modules out there ,,,,,,,,,,, packet sniffers are debuggers they read executables from pc memory so what u need to do is deny if debuggers are detected crash the executables.

to keep hackers or annoyers away finish of the game they start , add some codes in your client such as restart pc , hange , or reformat pc or add blue screen of death i dont have to tell u these lines pick it up , once they se any of these they will run away u win

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so right! an antidebugger may be a good idea. will try it soon. Thank you guys! you helped me so much