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6.2

Secure Timer Control

Asked by richweed in Delphi Programming

Tags: control, security, timer, using

I have written a logon program that looks up the time left in your account (via TCP/IP) and then lets you use the PC for X number of minutes.

When your time is up the logon screen comes up again and blocks you from using the PC. The logon screen is quite secure (no ctrl- alt-del etc), but once you'ce logged in, it's possible to end the timer task.

Because the timer program sends message once a minute, the server knows very quickly, but I'd like to make it more difficult to shutdown the program. I've considered using a device driver - This is how I think it should work:

the device driver is loaded on startup.
when you press a certain key combination, the driver is invoked and brings up the logon box. you log in and when you run out of time, the driver brings up the logon box again.

Questions:
Does this sound like it can be implemented in this way?

Can you have a hotkey to bring up the logon box? How would this be done?

Would the logon box be part of the driver or a dll?

Would this driver be able to communicate via tcp/ip?

Thanks
Richard
PS. This is probably worth more points, but I'm a bit low right now!
[+][-]05/30/97 12:05 PM, ID: 1336664Expert Comment

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[+][-]05/31/97 05:41 AM, ID: 1336665Author Comment

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[+][-]06/01/97 07:13 AM, ID: 1336666Expert Comment

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[+][-]06/02/97 07:37 AM, ID: 1336667Author Comment

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[+][-]06/03/97 07:17 AM, ID: 1336668Author Comment

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[+][-]06/03/97 07:31 AM, ID: 1336669Accepted Solution

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About this solution

Zone: Delphi Programming
Tags: control, security, timer, using
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Solution Provided By: sperling
Participating Experts: 2
Solution Grade: C
 
 
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