Another pre-compiled option for Windows is OpenSSL. From page: [https://wiki.openssl.org/index.php/Binaries] I took the link to: [http://wiki.overbyte.eu/wiki/index.php/ICS_Download#Download_OpenSSL_Binaries_.28required_for_SSL-enabled_components.29] The page asserts: The OpenSSL DLLs and EXE files are digitally code signed 'Open Source Developer, François PIETTE' Example of use: openssl dgst -sha3-256 sqlite-tools-win32-x86-3340000.zip