You could always generate it server side and lock it to the ip that the original... | Hacker News

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bostonvaulter2 on July 17, 2012 | parent | context | favorite | on: How I converted a software thief into a customer

You could always generate it server side and lock it to the ip that the original request came from.

MysticFear on July 18, 2012 [–]

Just hope the user's IP does not change from purchase to activation?

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