This is a BLAKE3 provider implementation for OpenSSL, intended to provide access to BLAKE3 until the algorithm is standardized and implemented upstream.

• OpenSSL 3.0 or greater
• CMake 3.10 or greater

Create a separate build tree:

$ mkdir output && cd output
$ cmake ../ && make

The only currently supported platform is Linux, using GCC or Clang. Other platforms and compilers may or may not work.

• BLAKE3_ENABLE_SSE

  • Set CMake flag to 1 during invocation to enable SSE2 and SSE4.1 optimziations in BLAKE3. If not set, this option will default to the appropriate setting for the host system.

• BLAKE3_ENABLE_AVX2

  • Set to 1 to enable AVX2 support in BLAKE3. This option defaults to enabled.

• BLAKE3_ENABLE_AVX512

  • Set to 1 to enable AVX512 support in BLAKE3. This option defaults to disabled.

• BLAKE3_ENABLE_NEON

  • Set to 1 to enable NEON support in BLAKE3. This option defaults to disabled.

• OPENSSL_MODULES_DIR
  • If this environment variable is set, the install script will install the provider library to the directory specified.

Tests can be run with CTest:

$ ctest ..

Run the installation script with:

$ sudo make install

blake3-prov is distributed under an Apache 2.0 license. See LICENSE for details.

The BLAKE3 implementation and test vectors used were provided by the Blake3 reference implementation.