Questions tagged [copy-protection]

I am looking for a scheme to generate and validate cryptographically secure product keys. My requirements are: Unforgeable. It must be impossible (or at least very hard) for users to forge a product key. Short. Users may enter product keys by…

I'd like to implement a "Product Registration" scheme into my software where upon initial use, the User must enter a key to unlock it. The key they enter is compared to their encrypted Username. They would have to acquire the key from myself if…

I am willing to create a server side licensing system for my commercial softwares but not really sure what cryptography method I should be using for best possible security per the standard of modern cryptography and how should I implement the…

Are there secure public domain crypto or license management algos? That is, like a GPL or MIT licensed cryptography algorithm that's as secure or more secure than commercial cryptography? Or are just commercial algos "commercial-grade"? Because…