Cross Platform AES 256 GCM Encryption / Decryption

The purpose of this article is to provide a starting point for projects which require strongest encryption on multiple platforms. Sample code is provided here and on GitHub repositories in C++ (Windows and Linux), Java and C#. Recently, a Linux based dynamic library and a test program explaining how to use it is uploaded on GitHub. C++ on Linux x64 means it could be used for NodeJS as well by just creating a wrapper. Similarly, it could be used on Apple machines easily as well.