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https://github.com/BLAKE3-team/BLAKE3
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e17c45ddd5
Changes since 0.1.2: - All x86 implementations include _mm_prefetch optimizations. These improve performance for very large inputs. - The C implementation performs parallel parent hashing, matching the performance of the single-threaded Rust implementation. - b3sum supports --no-mmap. Contributed by @cesarb. |
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| tests | ||
| Cargo.toml | ||
| README.md | ||
b3sum
b3sum 0.1.3
USAGE:
b3sum [FLAGS] [OPTIONS] [file]...
FLAGS:
-h, --help Prints help information
--keyed Uses the keyed mode, with the raw 32-byte key read from stdin
--no-mmap Disables memory mapping
--no-names Omits filenames in the output
--raw Writes raw output bytes to stdout, rather than hex. --no-names is implied.
In this case, only a single input is allowed
-V, --version Prints version information
OPTIONS:
--derive-key <CONTEXT> Uses the key derivation mode, with the input as key material
-l, --length <LEN> The number of output bytes, prior to hex encoding (default 32)
ARGS:
<file>...
Building
The standard way to install b3sum is:
cargo install b3sum
On Linux for example, Cargo will put the compiled binary in
~/.cargo/bin. You might want to add that directory to your $PATH, or
rustup might have done it for you when you installed Cargo.
If you want to install directly from this directory, you can run cargo install --path .. Or you can just build with cargo build --release,
which puts the binary at ./target/release/b3sum.
AVX-512 support (via C FFI, with dynamic CPU feature detection) and
multi-threading (via Rayon) are enabled by default. Note that the
underlying blake3 crate does not enable those by default.