BelT-Hash-Win32

A small native Win32 utility for computing the BelT-256 hash according to the STB 34.101.31-2020 standard.

The program allows you to:

• select a file,
• compute its BelT hash,
• copy the result to the clipboard,
• verify a match against a reference hex string.

The hash output is in hex format and is consistent with online tools such as hashing.tools/belt, meaning you should compare hex with hex.

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Features

• BelT-256 computation for files of any size;
• a convenient Win32 GUI with no third-party frameworks;
• a progress bar during file processing;
• copying the result to the clipboard;
• verifying an entered hash for a match;
• built-in test vectors from Annex A of the standard.

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Build

Option 1: MinGW-w64

The simplest way:

build_mingw.bat

After a successful build, the executable will be located at:

build\WinBelTFree.exe

The build uses static linking of MinGW's standard runtime libraries, so the .exe is more portable.

Option 2: CMake + MinGW

cmake -S . -B build -G "MinGW Makefiles" -DCMAKE_BUILD_TYPE=Release
cmake --build build -j

Option 3: CMake + MSVC

cmake -S . -B build -G "Visual Studio 17 2022" -A x64
cmake --build build --config Release

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Usage

1. Run WinBelTFree.exe
2. Click Browse...
3. Select the desired file
4. Click Compute Hash
5. The resulting BelT-256 hash can be:
   • copied using the Copy button
   • compared against a reference value using the Reference hash for verification field