[vwnc] Application Licensing
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I am currently using CrypKey to provide license control for my VisualWorks application when shipping to customers on Windows. I reshack the image to the vm, then use the CrypKey Instant product to wrap security around the exe. I am having some problems with intermittent failure though, and CrypKey has not been able to help much. So my question to the group is, what is everyone else using to provide license control for their applications. I rolled my own code before for this, but was never satisfied with it. It used the machine's mac address which can change, and could be overcome by clock changes and such trickery. Any pointers to available code, to commercial solutions, or to techniques that are more sound that what I did in the past would be appreciated.
Mike
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Re: [vwnc] Application Licensing
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Hi Mike,
as far as i know are these one-click things easy to use but also easy to break. So I'd rather go for a custom implementation. Don't make it too difficult though...it's usually not worth too much effort. I use Kagi for payments and they communicate with a php script on my server that creates serials that are then sent by Kagi to the customer. The serials are rather simple and contain a rsa encrypted hash of the email. This makes rather long serials though, so we put this string in the exif data of a jpg and users need to drag an image on their app to register it. That's pretty simple and easy to use, but people are not used to it and it creates plenty support mails. as for the trial time, i use a 15day period where people can try it out. If they change their clock they can use it for longer, but if you ever tried doing that you'll notice that calendar software and mail app go rouge. Kind Regards Karsten Mike Hales wrote: I am currently using CrypKey to provide license control for my VisualWorks application when shipping to customers on Windows. I reshack the image to the vm, then use the CrypKey Instant product to wrap security around the exe. I am having some problems with intermittent failure though, and CrypKey has not been able to help much. So my question to the group is, what is everyone else using to provide license control for their applications. I rolled my own code before for this, but was never satisfied with it. It used the machine's mac address which can change, and could be overcome by clock changes and such trickery. Any pointers to available code, to commercial solutions, or to techniques that are more sound that what I did in the past would be appreciated. --
Karsten Kusche - Dipl.Inf. - [hidden email] Tel: +49 3496 21 43 29 Georg Heeg eK - Köthen Handelsregister: Amtsgericht Dortmund A 12812 _______________________________________________ vwnc mailing list [hidden email] http://lists.cs.uiuc.edu/mailman/listinfo/vwnc |
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In reply to this post by Mike Hales
hardware: Sentinel/HASP Key. Can make the required small C/C++ Program that VW can interact with to afford a fair degree of protection. Software: Many to choose from depending on the nature/rigorousness of your need: ASProtect, SDProtector
skrish On Fri, Jul 3, 2009 at 1:52 AM, Mike Hales <[hidden email]> wrote: I am currently using CrypKey to provide license control for my VisualWorks application when shipping to customers on Windows. I reshack the image to the vm, then use the CrypKey Instant product to wrap security around the exe. I am having some problems with intermittent failure though, and CrypKey has not been able to help much. So my question to the group is, what is everyone else using to provide license control for their applications. I rolled my own code before for this, but was never satisfied with it. It used the machine's mac address which can change, and could be overcome by clock changes and such trickery. Any pointers to available code, to commercial solutions, or to techniques that are more sound that what I did in the past would be appreciated. _______________________________________________ vwnc mailing list [hidden email] http://lists.cs.uiuc.edu/mailman/listinfo/vwnc |
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You could also check License Manager from Mirage in Germany. That works without a hardware key and works fine using a DLL. Regards Paul
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Here's a direct link:
http://www.licence-protector.com/ Paul Op 3 jul 2009, om 08:28 heeft Paul het volgende geschreven:
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