The C++ (STL) interface to CryptoSys PQC.

An interface to diCrPQC.dll for C++ programmers using STL (C++11 or above).Requires CryptoSys PQC to be installed on your system, available from https://www.cryptosys.net/pqc/. In particular that diCrPQC.dll is in your library path.

Required files

Required files to compile in a C++ project:

crsyspqc.hpp
diCrPQC.h
crsyspqc.cpp
{main}.cpp
  #include "crsyspqc.hpp"
  int main() { ... }

Example minimal program

#include <iostream>
#include "crsyspqc.hpp"
int main() {
   // Get version of native DLL (if this works, the library has been installed correctly)
   int n = crsyspqc::General::Version();
   std::cout << "Version=" << n << std::endl;
   // Get length in bytes of signature for SLH-DSA-SHA2-128f
   std::cout << "DSA::SignatureSize(SLH-DSA-SHA2-128f)=" << crsyspqc::Dsa::SignatureSize(crsyspqc::Dsa::Alg::SLH_DSA_SHA2_128F) << std::endl;  // 17088
   }

Compiling and linking

You must link to the library file diCrPQC.lib.

• In MSVC++ IDE, use Project > Properties > Linker > Input > Additional Dependencies and add the full path to diCrPQC.lib. E.g.

  Additional Dependencies = $(OutDir)diCrPQC.lib;%(AdditionalDependencies)

• Using the command-line with MSVC:

  CL test.cpp crsyspqc.cpp /link ..\Debug\diCrPQC.lib

• Using GCC (make sure the DLL has been compiled for target X64):

  g++ -std=c++11 test.cpp crsyspqc.cpp "C:\fullpath\to\x64\Debug\diCrPQC.lib"

• Don't forget to compile together with crsyspqc.cpp, and have the files crsyspqc.hpp and diCrPQC.h in the same directory.