BNCSUtil is the Battle.Net Chat Service Utility which aids applications trying to logon to Classic Battle.net™ using the binary protocol. Specifically, BNCSUtil has functions that help with the cryptography of game versions, keys, and passwords.

BNCSUtil was originally written by Eric Naeseth (shadypalm88) and has since been maintained over the course of several years by the open source Battle.net community.

Add bncsutil.h to your include directory and link against bncsutil.lib or libbncsutil.so.

Conan will automatically install mpir on Windows and gmp on non-Windows platforms.

To force a specific build (32bit or 64bit) add -DCMAKE_GENERATOR_PLATFORM=x86 or -DCMAKE_GENERATOR_PLATFORM=x64 to CMake flags.

Version 2019 has compiler version 16, 2015 has compiler version 14.

Change -o *:shared option if you want to link static or dynamic dependencies.

Change BUILD_SHARED_LIBS to build the library as static or shared.

conan install . -if ./build -s compiler.version=16 -s arch=x86_64 -o *:shared=True
cmake -G "Visual Studio 16 2019" -B./build -DBUILD_SHARED_LIBS=1 -DCMAKE_GENERATOR_PLATFORM=x64

conan install . -if ./build
cmake -G "Unix Makefiles" -B./build
cd build && make && make install

Instead of using conan you can link against system provided gmp. Install libgmp-dev on deb distros or gmp-devel on rpm distros. For 32bit builds, CMake will not warn you if you are missing 32bit glibc and GMP, you must install them manually first (CentOS/Fedora: glibc-devel.i686 and gmp-devel.i686).

cmake -G "Unix Makefiles" -B./build -DUSE_SYSTEM_LIBS=1
cd build && make && make install

After invoking CMake, cd to build folder and generate them with cpack -G "DEB" and cpack -G "RPM". You can then use gdebi to do a local install of .deb with automatic dependency resolution or yum localinstall on rpm distros. For dnf it's dnf install <name>.rpm.

DEB and RPM repositories are maintained with best effort.

1. To /etc/apt/sources.list add:

#apt.xpam.pl
deb http://apt.xpam.pl/debian9/ bnetdocs-stretch main

#apt.xpam.pl
deb http://apt.xpam.pl/debian8/ bnetdocs-jessie main

2. Add GPG key: wget -qO - https://apt.xpam.pl/xpam.pl-pubkey.asc | sudo apt-key add -
3. Update and install: sudo apt-get update && sudo apt-get install bncsutil

yum -y install yum-utils
yum-config-manager --add-repo https://centos7.rpm.xpam.pl
yum-config-manager --enable https://centos7.rpm.xpam.pl
rpm --import https://centos7.rpm.xpam.pl/xpam.pl-pubkey.asc
yum -y install bncsutil

yum -y install yum-utils
yum-config-manager --add-repo https://centos6.rpm.xpam.pl
yum-config-manager --enable https://centos6.rpm.xpam.pl
rpm --import https://centos6.rpm.xpam.pl/xpam.pl-pubkey.asc
yum -y install bncsutil