10-24-2007, 03:48 AM
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Join Date: May 2007
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no, it's of course not the only way, but it's a pretty easy and safe way. The drawbacks are that the users are required to have online connectivity on their devices (not always the case) and your webserver must be up all the time.
Another way would be to use licensekeys, but then you have to come up with a solid key algorithm. Also, you have to find ways to prevent the exchange of keys, maybe embedding the PIN into the key, so it only works on one device. This might also be more complicated for your users.