Code Encryption
Code encryption is a powerful feature of obfuscation tools that allows developers to protect their application code from being reverse-engineered by hackers or competitors. With code encryption, the code is transformed in such a way that it can only be decrypted and executed by the application at runtime. This makes it much more difficult for an attacker to analyze and understand the code, as they cannot simply decompile it into its original source form.
Code encryption can be used with Babel Licensing to protect the code that implements the licensed features, ensuring they cannot be accessed or executed without a valid license file. By encrypting the code, the license file can contain a password or key that is used to decrypt and execute the protected code when the licensed feature is accessed.
This means that even if an unauthorized user gains access to the protected code, they will not be able to execute it without the correct password or key, which is only available through a valid license file. Additionally, code encryption can help prevent reverse engineering and tampering with the code, further enhancing the security of the licensed features.
When used in combination with other license management techniques, such as license keys or activation codes, code encryption can provide a robust and secure licensing solution for software applications with feature-based licensing models.
These examples show Code Encryption on its own and combined with Babel Licensing. Each has a public GitHub repository you can clone and build.
- Protecting an Algorithm with Code Encryption — the simplest setup: one MSBuild property, runs standalone with no runtime license.
- Feature Based Licenses — unlock encrypted feature code from a license, per edition.
- License-Bound Code Encryption — the decryption password lives inside a signed, hardware-locked license, not in the binary.
- Feature as an External Encrypted File — deliver a premium feature as a separate, license-gated
.eilfile. - Subscription License with Encrypted Pro Code — a time-limited license with grace period gating encrypted pro code.
See also the Code Encryption knowledge base article.