A PlanetSide specific wrapper around CryptoPP for use with Scala, Java, C++ or C. These functions are used for [establishing an authenticated and confidential connection](https://github.com/psforever/PSF-LoginServer/blob/master/pslogin/src/main/scala/CryptoSessionActor.scala) between a PlanetSide server and client.
PlanetSide uses an older version of a cryptographic library called CryptoPP (Crypto++). It uses this for encrypting, decrypting, and authenticating _all_ login and world packets. Some of the algorithms used by PlanetSide are depreciated and no longer used for modern crypto (read: insecure). This means that implementations of some algorithms (e.g., MD5MAC) are hard to find.
What we have done is figured out the last known version of CryptoPP that used some of these algorithms, forked it, made it compile, and wrapped it so it could be easily called from server code, which is in Scala. It's possible that these old algorithms could be recreated for new modern code, but this was the easiest option and it nearly identically matches what PlanetSide was doing for crypto (discovered after over a month of reverse engineering client netcode).
This will build the CryptoPP dependency and then the `pscrypto` library, which links to CryptoPP. The pscrypto build artifact will be in pscrypto/ as `libpscrypto.so` or `pscrypto.dll` depending on your platform. Note that the library architecture must match that of the JVM or process you are loading it in to, otherwise you will see loader errors.
Keep in mind that if you are building with Cygwin's GCC (not a cross compiler like MinGW), then your binaries _will not work_ on systems without Cygwin installed!
You are able to create a release on a Linux 64-bit system with the MingW64 compiler toolchain installed. The prefixes required to build in order to support Windows 32,64 and Linux 64-bit are (`apt install g++-mingw-w64`):
