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BLAKE3/c/README.md
Jack O'Connor a7579d30ad merge BLAKE3-c into this repo 
This is commit 4476d9da0e370993823e7ad17592b84e905afd76 of
https://github.com/veorq/BLAKE3-c.
2020-01-09 09:48:52 -05:00

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BLAKE3-c Actions Status

A very rough initial implementation of BLAKE3 in C. SSE4.1, AVX2, AVX-512, and NEON are supported, using compile-time feature selection in the Makefile.

This implementation is simpler than the Rust implementation. It doesn't support multithreading, and it doesn't parallelize parent hashes, so throughput is lower.

TODO:

  • CI testing for AVX-512 and NEON.
  • Cross-platform build, e.g. Windows.
  • Dynamic CPU feature detection, at least for x86.

Example usage:

$ make avx2
$ head -c 1000000 /dev/urandom | ./blake3
43f2cae3cfd7678bc3a3ebdbf170608d19d5ebaad23e9d06291dba3269853608
$ head -c 1000000 /dev/urandom | ./blake3 --length 50
4fc0ee74a60aa77fb699821997498fd93f1a98bd03eaf2a7969c4b35fb742c233a7a161fd2a431605f6e92dcf4cd7d052102
$ head -c 1000000 /dev/urandom | ./blake3 --keyed 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef
8aee87b232fe90b042bf9119591e24409763a268139ff157d20021003e314064