# bcrypt を Homebrew, dnf, MacPorts でインストール

bcrypt のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。

## インストール

```sh
sudo av install brew:bcrypt
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install bcrypt
```

  証拠: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install bcrypt
```

  証拠: MacPorts ports tree: security/bcrypt/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

### Linux

- dnf (92%):

```sh
sudo dnf install bcrypt
```

  証拠: Fedora Rawhide package metadata: bcrypt from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst

## パッケージ情報

- **パッケージキー:** brew:bcrypt
- **パッケージマネージャ:** Homebrew
- **パッケージマネージャページ:** <https://formulae.brew.sh/formula/bcrypt>
- **バージョン:** 1.1
- **ソース概要:** Cross platform file encryption utility using blowfish
- **ホームページ:** <https://bcrypt.sourceforge.net/>
- **上流ドキュメント:** <https://bcrypt.sourceforge.net/>
- **ライセンス:** BSD-3-Clause
- **ソースアーカイブ:** <https://bcrypt.sourceforge.net/bcrypt-1.1.tar.gz>
- **生成日時:** 2026-07-08T18:08:21+00:00

## 実行可能ファイル

- bcrypt (cli)
- bcrypt (エイリアス)

## インストール挙動

- post-install フック: 未定義
- Bottle: 利用可能 対象 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux

## バージョンと鮮度

- ページ生成日: 2026-07-08
- マネージャ版: 1.1
- ローカルデータ: OK
- 上流リポジトリ: https://bcrypt.sourceforge.net/
- 情報: No package-manager update timestamp was available.
- 情報: Release/tag comparison is only available for GitHub repositories.
## プロジェクトの歴史と使われ方

bcrypt is a small cross-platform command-line file encryption utility built around the Blowfish block cipher, not the later password-hashing scheme that shares the same name. Its public SourceForge page and bundled README describe a Unix-style tool that encrypts files to .bfe files, optionally compresses input, and securely overwrites originals before removal.

### プロジェクトの歴史

Johnny Shelley published bcrypt 1.1 in 2002 under a BSD-style license. The project page ties the tool directly to Bruce Schneier's 1993 Blowfish algorithm and Paul Kocher's public Blowfish implementation, with local changes shipped in the bcrypt source archive.

The 1.1 release notes emphasize portability work: bcrypt had been tested across FreeBSD, OpenBSD, Linux, Cygwin, Win32, Solaris, Mac OS X 10.1 Server, HP-UX, Alpha, MIPS, PPC, SPARC, and other systems. The same notes warn users upgrading from 1.0 on some unsupported architectures to decrypt and re-encrypt files because early portability bugs could affect compatibility.

### 採用の歴史

bcrypt's adoption pattern is typical of early-2000s security utilities: a small upstream tarball, a SourceForge homepage, and packaging by Unix-like distributions for users who wanted a simple local file encryptor. The Homebrew, Fedora, and MacPorts package names preserve that utility even though modern searches for 'bcrypt' usually find password hashing libraries instead.

### 使われ方

The documented interface is deliberately small: run bcrypt on one or more files, producing .bfe encrypted files; run it again on .bfe input to decrypt. Options control stdout output, compression, removal of input files, and the number of overwrite passes before deletion.

### パッケージ好きにとっての重要性

For package historians, bcrypt is interesting because it is a name collision frozen in package indexes: this package is a Blowfish file-encryption CLI, while 'bcrypt' is now better known as a password hashing algorithm. It also captures a period when secure deletion, endian portability, source tarballs, GPG signatures, and cross-architecture binary compatibility were front-and-center concerns for small security packages.

### タイムライン

- 1993: Bruce Schneier publishes the Blowfish algorithm, which bcrypt later uses.
- 2002: bcrypt 1.1 is released by Johnny Shelley with bug fixes, broader operating-system support, better speed, and lower memory use.
- 2000s-2020s: Unix package managers continue carrying bcrypt as a niche file-encryption utility.

### Related projects

- Blowfish is the cipher family named by the bcrypt documentation as the cryptographic basis for the tool.
- zlib is the compression dependency documented for the source build.
- Modern bcrypt password-hashing libraries are related mainly by name and Blowfish lineage; they are not the same package or interface.

### ソース

- <https://bcrypt.sourceforge.net/>
- <https://bcrypt.sourceforge.net/bcrypt-1.1.tar.gz>
- source_facts.package-manager


## セキュリティノート

broad file, network, media, or database tool signal.

- **Geiger リスク:** blue / 中
- broad file, network, media, or database tool signal

## ソースデータベース詳細

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** bcrypt
- **Version Scheme:** 0
- **Revision:** 0
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** stable

## 他のパッケージマネージャ記録

- dnf - bcrypt - 1.1-40.fc44: normalized package name match | Fedora Rawhide package metadata: bcrypt from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst | File encryption utility | http://bcrypt.sourceforge.net/
- MacPorts - bcrypt: normalized package name match | MacPorts ports tree: security/bcrypt/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1


## 関連リンク

- [Secret-risk packages](https://www.automicvault.com/ja/pkg/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals.
- [Terminal utility packages](https://www.automicvault.com/ja/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Networking and protocol packages](https://www.automicvault.com/ja/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [Security and crypto packages](https://www.automicvault.com/ja/pkg/security-crypto-tools/) - Matched security, identity, cryptography, password, signing, or certificate metadata.
- [rage](https://www.automicvault.com/ja/pkg/brew/rage/) - Shares av.db curated category or tags: cli, cryptography, encryption, file-encryption, security.
- [cryfs](https://www.automicvault.com/ja/pkg/brew/cryfs/) - Shares av.db curated category or tags: cli, encryption, security.
- [dislocker](https://www.automicvault.com/ja/pkg/brew/dislocker/) - Shares av.db curated category or tags: cli, encryption, security.
- [git-crypt](https://www.automicvault.com/ja/pkg/brew/git-crypt/) - Shares av.db curated category or tags: cli, encryption, security.
- [git-remote-gcrypt](https://www.automicvault.com/ja/pkg/brew/git-remote-gcrypt/) - Shares av.db curated category or tags: cli, encryption, security.
- [gocryptfs](https://www.automicvault.com/ja/pkg/brew/gocryptfs/) - Shares av.db curated category or tags: cli, encryption, security.
- [shush](https://www.automicvault.com/ja/pkg/brew/shush/) - Shares av.db curated category or tags: cli, encryption, security.
- [ssh-vault](https://www.automicvault.com/ja/pkg/brew/ssh-vault/) - Shares av.db curated category or tags: cli, encryption, security.
- [bcryptjs](https://www.automicvault.com/ja/pkg/npm/bcryptjs/) - Executable or command metadata overlaps with this package. Shared terms: bcrypt, cli, cryptography, encryption, security.
- [ccrypt](https://www.automicvault.com/ja/pkg/brew/ccrypt/) - Security-sensitive metadata or terminology overlaps. Shared terms: cli, cryptography, encryption, file, security.

## Combined YAML source

View the package source record on GitHub. [combined/bcrypt.yml](https://github.com/automic-vault/db/blob/main/combined/bcrypt.yml)


## ソース

- Nucleus package database
- Geiger risk classifier
- package-page enrichment
- curated package history
- package version freshness
- av.db category and tag curation
- package relationship graph
- external package-manager database matches
- cross-ecosystem install command graph