Not allow download image by software in ASP Classic page

Hi Expert,

I have one site show special image (www.thoitrang.com), I want prevent someone use software as Teleport to download my image on site.

I have tried with solution :
<img src="showimage.asp?id=12345">   --> sample

and I tried download by Teleport or Firefox and I can still download image on that

Please help me.

Thanks

andreni78Asked:
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Rich RumbleConnect With a Mentor Security SamuraiCommented:
Still, the image is downloaded to cache in the browser, and is fully able to be extracted, or a screen shot taken... if you don't want the image to be copyable, don't serve it via the browser. There is no way, absolutely no way you can serve and image, and hope that it won't be saved/downloaded. You should probably consider an alternate solution to the real problem. Perhaps copyrighting your image or placing "watermark" data in it.
http://graphicssoft.about.com/cs/photoshop/ht/apswatermark.htm
HTTrack is even better for offline storage http://www.httrack.com/
Software like this also fails if your determined enough, or have the right tool http://www.share2s.com/protect.html but against the casual person it may do the job...
-rich
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lbertaccoCommented:
As long you want the images to be visible in a web browser, they will be downloadable.
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Dean ChafeeIT/InfoSec ManagerCommented:
There is client side scripting that will protect web page images from being saved. I don't know what it is at the moment, but I will research and find it upon request.
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Dean ChafeeIT/InfoSec ManagerCommented:
Here is one example of image protection script:
http://www.htmlguardian.org/help_main.html
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Dean ChafeeIT/InfoSec ManagerCommented:
rich is right. If you server the image to a web browser and the user is knowledgeable and determined, there is not way to protect it. The client side scripts are simply a deterrant to the casual user.
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