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.NET Forum / Languages / C# / January 2008How to create a serial number for a software?
Hi, I have been working for several months on a sofware and now it is finished. I have a problem now and it is this: Because I live in a country which there is no copyright law in it (Iran!!!!). As soon as I give the software to some customers, the software will be copied illegally and I don't want this happen. Now I wonder if anyone could help me on how to create a lock or a serial number for the software. I want my software to generate a code based on the hardware used and then when the customer enters that code in my web site, the web site gives a valid serial number which activates the software (or something like that). Any help or idea will be appreciated. > [...] > I want my software to generate a code based on the hardware used and > then when the customer enters that code in my web site, the web site > gives a valid serial number which activates the software (or something > like that). > Any help or idea will be appreciated. Google can find you lots of information. In this newsgroup alone it's been discussed to death, including very recently. Search for things like "license", "copy protection", "obfuscation", "unique id", etc. The bottom line: what you're talking about is basically the same as Microsoft's "Product Activation" anti-feature, and even they can't get it to work perfectly. A better approach is to write software that motivates people to want to motivate _you_ to keep writing software by paying you for it, and to provided added value for the cost of the software in the form of customer support, documentation, and other added benefits. Do not forget: whatever copy protection you incorporate, someone will figure out a way to bypass it. At that point, the only people who could possibly be inconvenienced by the copy protection will be your paying customers (and make no mistake, if you have any significant number of customers, copy protection _will_ inconvenience at least some of your customers). Pete On Jan 11, 6:32 am, "Peter Duniho" <NpOeStPe...@nnowslpianmk.com> wrote: > On Thu, 10 Jan 2008 18:18:57 -0800, sheper...@googlemail.com > [quoted text clipped - 27 lines] > > Pete Hi, Thanks for the help. I know there is always someone who will bypass those protection methods, but there is not much of those ones around here. So if have a medium level of protection for my software it will work for me. Just I am puzzled where to start from. Thanks again. There is a few ways you can do it.. They way I like to do it, is take the person's name that is registering, encrypt it using your internal password, then hash it. The hash would be the serial used for the client to enter along with their registration name. This way it's unique person customer and you can verify it easily on the client side. > On Jan 11, 6:32 am, "Peter Duniho" <NpOeStPe...@nnowslpianmk.com> > wrote: [quoted text clipped - 37 lines] > am puzzled where to start from. > Thanks again. > There is a few ways you can do it.. They way I like to do it, is take the > person's name that is registering, encrypt it using your internal password, [quoted text clipped - 47 lines] > > am puzzled where to start from. > > Thanks again. Hi, That's so nice. Thank you. I have seen some programs generating a code based on the hardware of the customers. If anyone could tell me how to do that it would be much better. Thanks again. >> There is a few ways you can do it.. They way I like to do it, is take >> the [quoted text clipped - 63 lines] > better. > Thanks again. I would suggest if your going that way to use the HardDrive, not Nic or Mac address information.. Since the users is less likely to swap out the harddrive than anything else.. Look into GetVolumeInformation() http://www.eggheadcafe.com/articles/20021019.asp > I would suggest if your going that way to use the HardDrive, not Nic or Mac > address information.. Since the users is less likely to swap out the > harddrive than anything else.. Less likely, but still something that happen. Arne >> I would suggest if your going that way to use the HardDrive, not Nic or >> Mac address information.. Since the users is less likely to swap out [quoted text clipped - 3 lines] > > Arne Yes so could any of the hardware. HardDrive or Motherboard is usually the last to go.. I did find another site so you can choose your hardware of choice.. Very nice.. http://www.codeproject.com/KB/system/GetHardwareInformation.aspx Better yet: http://www.codeproject.com/KB/cs/hard_disk_serialno.aspx >> There is a few ways you can do it.. They way I like to do it, is take >> the [quoted text clipped - 63 lines] > better. > Thanks again. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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