The Licers Blog
Guides on protecting your software — validating keys, stopping piracy, floating licenses, offline activation, and more.
LicensingTrialsHow to build a free trial that users cannot cheat: server-enforced expiry, starting the clock on first use, converting trials to paid, and stopping trial abuse.
LicensingCryptographyFrom partial key verification to digital signatures — how license key algorithms actually work, why the classic approach is broken, and what to use instead.
LicensingActivationA clear explanation of software activation: what happens when a program checks a license, what a machine fingerprint is, how offline activation works, and why the confirmation must be signed.
PythonAnti-piracyYou cannot make Python impossible to decompile, but you can make it slow, painful, and not worth the effort. Here are the techniques that actually help — and the ones that do not.
PythonLicensingThe options for licensing a Python application — offline files, online validation, and floating licenses — with the trade-offs of each and how to choose.
PythonLicense KeysA practical guide to locking your Python code to a license key: validate on startup, bind to the machine, verify the signature, and obfuscate so the check cannot be removed.
PythonLicense KeysLearn how to generate software license keys in Python — from a quick random key to a secure signed key that cannot be forged or guessed. With copy-paste code.
Anti-piracyLicensingYou cannot make software 100 percent piracy-proof. But you can make cracking expensive enough that most people simply pay. Here is a realistic, developer-friendly playbook.
PythonLicensingA step-by-step guide to adding secure, tamper-proof license validation to a Python application — using signed responses that a fake license server cannot forge.