This is an experimental port of TWLbf to OpenCL.

Note: If you really want to use Visual Studio 2017, you're going to probably have to change the Makefile a bit and compile mbedtls from source.

• A 64-bit computer
• MSYS2 (the x86_64 executable; read its instructions on installing and setting up)
• An OpenCL.dll or OpenCL.lib 64-bit library

Note: OpenCL.dll can be found inside of your C:\Windows\System32\ folder, but you may have to install your graphics card's drivers from your graphics card's vendor if it's not there. You can alternatively install Intel's OpenCL SDK, but this requires you to agree to their TOS and takes up more space on your computer.

1. Close any open instances of MSYS2 (if applicable), then launch the MSYS2 MinGW 64-bit shortcut from the Windows Start Menu.
2. In the MSYS2 bash shell that appears, execute pacman -Syu --needed mingw-w64-x86_64-gcc mingw-w64-x86_64-make mingw-w64-x86_64-mbedtls git to download and install required packages.
3. If you're going to use the OpenCL.dll 64-bit library from your C:\Windows\System32\ folder (in contrast to installing Intel's OpenCL SDK), copy it into your msys64/mingw64/lib/ folder (your msys64 folder is by default installed onto the root of your "C:" drive during the installation of MSYS2). Additionally, if you're going to use OpenCL.dll, in MSYS2, execute git clone https://github.com/KhronosGroup/OpenCL-Headers.git && mv OpenCL-Headers/CL /mingw64/include/ to download and move the required OpenCL C headers folder.
4. In MSYS2, execute git clone https://github.com/zoogie/bfCL.git && cd bfCL to download bfCL and change your current directory to it.
5. In MSYS2, execute mingw32-make to compile bfCL (OpenCL and mbedcrypto will both be dynamically linked! Refer to the Makefile if you want to statically link mbedcrypto instead).

• A 64-bit computer

Note: the concept is still applicable for all other Linux distros; e.g., some packages may have different names.

1. Open up the "Terminal" application.
2. In "Terminal", execute sudo apt-get update && sudo apt-get install gcc git libmbedtls-dev make ocl-icd-opencl-dev to download and install required packages (note that the "ocl-icd-opencl-dev" package includes both the OpenCL C headers and the OpenCL ICD Loader library).
3. After all of the packages have finished installing, in "Terminal", execute git clone https://github.com/zoogie/bfCL.git && cd bfCL to download bfCL and change your current directory to it.
4. In "Terminal", execute make to compile bfCL (OpenCL and mbedcrypto will both be dynamically linked! Refer to the Makefile if you want to statically link mbedcrypto instead).

• An Intel-based 64-bit computer
• Homebrew (Read its instructions on installing; installing Homebrew also installs Xcode command-line tools, which is also needed)

1. Open up the "Terminal" application through Launchpad.
2. In "Terminal", execute brew update && brew install git mbedtls to download and install required packages.
3. In "Terminal", execute git clone https://github.com/zoogie/bfCL.git && cd bfCL to download bfCL and change your current directory to it.
4. In "Terminal", execute make to compile bfCL (OpenCL and mbedcrypto will both be dynamically linked! Refer to the Makefile if you want to statically link mbedcrypto instead).

AES and SHA1 code from mbed TLS which is Apache 2.0 license, so I guess this project becomes Apache 2.0 licensed automatically? or only related files are Apache 2.0? I'm not sure.