As a developer, you've probably encountered a situation like this at least once: "I'm reluctant to show game configuration files, save data, or even minor communication content as-is, but it doesn't seem worth implementing heavy-duty encryption either......"
In such cases, I created a custom obfuscation and data protection module that's "just right."
Repository (GitHub): https://github.com/BLUE000/TransCipher-Dist.git
This "TransCipher" is not a newly developed encryption algorithm. It's an "obfuscation framework" that combines existing trusted methods (AES-GCM, Base64, byte reversal, percent encoding, etc.) like puzzle pieces.
Deterministically generates transformation recipes (instruction manuals) from secret keys
- Using the same key always performs multi-stage transformations in the same procedure.
- If the key changes, the order and combination of transformations (whether to do AES first or Base64 later, etc.) changes dramatically.
This means that even if the algorithm is exposed, without knowing the "key," the analysis cost to determine the order in which data was processed is significantly increased.
- Can work together between server (PHP) and applications (C++).
Since the same logic is implemented in both C++ (DLL/CLI) and PHP, operations like obfuscating in an app and decrypting on the server are possible.
Since it employs AES-GCM internally, a certain level of strength is ensured, but it is not intended to protect data like personal information or payment information where "leakage is absolutely unacceptable."
Rather, it's designed for situations like:
- Obfuscating game save data and configuration files
- "Just making communication content between custom tools invisible"
- Slightly increasing the difficulty of reverse engineering
The data format looks like this:
This software is provided as-is. The author assumes no responsibility for any damages arising from the use of this software.
Source code is not public, but use through public APIs is not a problem.
※The following is also noted on GitHub, but was added later.
When incorporating this software into your own application and distributing it, please include copyright attribution in one of the following formats in your application's "About" section, "License List," etc.
Attribution Example 1 (Simple):
Includes TransCipher, Copyright (c) 2026 BLUE000.
Attribution Example 2 (As a Third-Party License Item):
This software uses TransCipher library.
Copyright (c) 2026 BLUE000.
※ Please ensure that the copyright holder of the entire application (you) and the copyright holder of the library (BLUE000) are clearly distinguished and not confused.
As of 5/18, expressions have been consistently obfuscated to fully comply with and avoid violating FIPS/NIST standards and export regulations.
It remains treated as obfuscation.
