Date: Wed, 12 Oct 2005 11:42:41 +0100 From: Jonathon McKitrick <jcm@FreeBSD-uk.eu.org> To: freebsd-questions@freebsd.org Subject: Implementing software licensing in FreeBSD Message-ID: <20051012104241.GA34129@dogma.freebsd-uk.eu.org>
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Setting aside opinions on copy protection and licensing, suppose I wanted to implement such a scheme. The key itself might be a network license, or an encrypted file containing license info and system-specific info. But the real issue is how to protect the code that accesses the key. I know that 'wrappers' don't have much of an application in Unix, and are actually impractical. But what techniques could be implemented within a library or archive that would make it difficult for someone to trace the algorithm and/or make changes to the code to remove the protection checks? jm --
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