b3sum – implementation of the BLAKE3 hash function

The b3sum Rust crate, which provides a command line interface. It uses multithreading by default, making it an order of magnitude faster than e.g. sha256sum on typical desktop hardware.

This is free and open source software.

BLAKE3 is a cryptographic hash function that is:

  • Much faster than MD5, SHA-1, SHA-2, SHA-3, and BLAKE2.
  • Secure, unlike MD5 and SHA-1. And secure against length extension, unlike SHA-2.
  • Highly parallelizable across any number of threads and SIMD lanes, because it’s a Merkle tree on the inside.
  • Capable of verified streaming and incremental updates, again because it’s a Merkle tree.
  • A PRF, MAC, KDF, and XOF, as well as a regular hash.
  • One algorithm with no variants, which is fast on x86-64 and also on smaller architectures.

Website: github.com/BLAKE3-team/BLAKE3
Support:
Developer: Jack O’Connor
License: CC0-1.0 OR Apache-2.0 OR Apache-2.0 WITH LLVM-exception

b3sum options

b3sum is written in Rust. Learn Rust with our recommended free books and free tutorials.


Related Software

CLI Data Hashing Tools
xxHashNon-cryptographic hash algorithm
b3sumImplementation of the BLAKE3 hash function
RHashCalculate and verify magnet links and various message digests
md5sumCompute and check MD5 message digest; part of GNU Coreutils
cfvTest and create checksum files
JacksumWork with checksums, CRCs, and message digests
md5Generate / check MD5 message digest
digupUpdate md5sum or shasum digest files
cksumCompute and verify file checksums
HashratHash-generation utility
ddgstHashing and checksum utility
QCalcFileHashHash calculator
hashdirChecksum directories and files
Hash CalculatorCalculates around 50 cryptographic hashes of strings and files
danoHashdeep/md5tree for media files
sha3sumKeccak, SHA-3, SHAKE, and RawSHAKE checksum utilities
luhaSimple file checksum tool
filepackFile hashing and verification
b2sumCalculate BLAKE2 checksums

Read our verdict in the software roundup.


Best Free and Open Source Software Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.

This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk.

You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more.

Discovered a useful open source Linux program that we haven’t covered yet? Let us know by completing this form.
Subscribe
Notify of
guest
0 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments