b2sum を Homebrew, Nix, scoop でインストール

プロジェクトリンク

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コマンドとエイリアス

• b2sum

プロジェクトの歴史

BLAKE2 is a cryptographic hash function family derived from the BLAKE SHA-3 finalist lineage. The official BLAKE2 repository packages portable C implementations, optimized implementations for several CPU families, benchmark code, and the `b2sum` command-line utility.

The `b2sum` source file carries a 2012 copyright notice for the BLAKE2 reference source package, and the BLAKE2 specification was later published as RFC 7693 in 2015. The repository's sparse tag history reflects a small reference-code package rather than a continuously shipped application.

採用の歴史

`b2sum` adoption is tied to users who want a standalone BLAKE2 checksum utility from the reference implementation. The input package facts list Homebrew, Nix, and Scoop packages, which is typical for small cryptographic command-line utilities that package managers make easy to install across platforms.

The broader BLAKE2 family became notable because it offered high performance while retaining cryptographic-hash use cases. For CLI users, `b2sum` is the simple artifact: install a tiny package, hash files, and compare output in scripts.

使われ方

`b2sum` reads files and emits BLAKE2 digests for verification or scripting. The source notes compatibility concerns with coreutils-style checksum behavior, which explains the familiar package-manager naming and command-line shape.

There is no project-level configuration file or credentials file; `b2sum` is a stateless local hashing utility.

パッケージ好きにとっての重要性

For package nerds, `b2sum` is the satisfying opposite of a cloud CLI: tiny, C-based, stateless, and useful anywhere checksums are useful. Its main packaging questions are license expression, CPU-optimized source selection, and making the reference utility available without pulling a larger suite.

It also shows how package names can be misleading beside cloud tooling: `brew:b2sum` is BLAKE2 checksum software, not related to Backblaze B2.

タイムライン

• 2012: The BLAKE2 reference package includes the `b2sum` tool source.
• 2015: RFC 7693 publishes the BLAKE2 cryptographic hash specification.
• 2016: The BLAKE2 repository has a public `20160619` tag.
• 2019: The BLAKE2 repository has a public `20190724` tag.

Related projects

• BLAKE2b and BLAKE2s are the main BLAKE2 hash variants in the reference package.
• BLAKE was the SHA-3 competition finalist lineage from which BLAKE2 descends.
• `sha256sum` and other coreutils-style checksum tools are the closest command-line analogs.

ソース

• BLAKE2 official website
• BLAKE2/BLAKE2 README and b2sum source
• RFC 7693
• source_facts.package-manager