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使用 Homebrew, apk, dnf, Nix, pacman, apt, zypper 安装 libjcat

查看 libjcat 的安装路径、可执行文件、元数据以及面向 AI 代理工作流的安全说明。

安装命令安全说明

安装

其他安装命令

macOS

Homebrew已验证 · 100%
brew install libjcat

local Homebrew formula metadata

Linux

Alpine Linux apk已验证 · 92%
sudo apk add libjcat

Alpine Linux edge package indexes · libjcat · 来源: dl-cdn.alpinelinux.org

Fedora dnf已验证 · 92%
sudo dnf install libjcat

Fedora Rawhide package metadata · libjcat · 来源: dl.fedoraproject.org

Nix已验证 · 92%
nix profile install nixpkgs#libjcat

nixpkgs package indexes · pkgs/by-name/li/libjcat/package.nix · 来源: api.github.com

Arch Linux pacman已验证 · 92%
sudo pacman -S libjcat

Arch Linux sync databases · libjcat · 来源: geo.mirror.pkgbuild.com

Debian apt已验证 · 92%
sudo apt install gir1.2-jcat-1.0

Debian stable package indexes · gir1.2-jcat-1.0 · 来源: deb.debian.org

openSUSE zypper已验证 · 92%
sudo zypper install jcat-tool

openSUSE Tumbleweed package metadata · jcat-tool · 来源: download.opensuse.org

概览

软件包摘要

Library for reading Jcat files

命令和别名

  • jcat-tool

历史

项目历史与用法

libjcat is a small GObject-oriented library and command-line tool for reading and writing gzip-compressed JSON catalog files. Its niche is software-integrity metadata: a Jcat file can collect checksums and detached signatures for the files in an archive, with support for SHA checksums, GPG signatures, and PKCS#7 signatures.

项目历史

Richard Hughes published libjcat as a standalone project in 2020, splitting a catalog-signature concern that matters to firmware distribution into a reusable library. The README describes the format as equivalent in purpose to Microsoft Windows catalog files, but represented as gzipped JSON divided into JcatFile, JcatItem, and JcatBlob objects.

The project grew around firmware-update workflows. Its examples show firmware payloads and metainfo XML carried as catalog items, then signed or verified with local self-signing keys, explicit public keys, or imported detached signatures.

采用历史

libjcat matters mostly because of fwupd and the Linux Vendor Firmware Service ecosystem. fwupd documentation explains that LVFS adds a .jcat file to uploaded firmware archives so original firmware and metadata are not modified while checksums and detached signatures remain verifiable.

Homebrew, Debian, Fedora, Arch, Nix, Alpine, Ubuntu, and openSUSE package it, which reflects its role as a small shared dependency for firmware and software-integrity tooling rather than as an end-user application.

使用方式

Users usually meet libjcat through jcat-tool, which can create a catalog, add checksums, sign payloads, import detached signatures, export signature blobs, and verify a catalog against a public certificate. Version 2.0.0 added support for signing the checksum of a large payload instead of loading the whole payload for signature verification.

为什么软件包爱好者会关心

For package maintainers, libjcat is interesting because it packages a Windows-like catalog-signature idea in a Unix-friendly library with introspection bindings and a tiny CLI. It is one of those dependencies that looks obscure until a firmware update path needs detached integrity metadata that survives archive repacking.

时间线

  • 2020-03-23: libjcat 0.1.0 release commit.
  • 2020: README examples document firmware.bin and firmware.metainfo.xml as typical Jcat archive items.
  • 2022-03-22: libjcat 0.1.11 release commit.
  • 2023-12-15: README examples document signing the checksum target for large payloads, noting the feature requires JCat 2.0.0 or newer.

Related projects

  • fwupd and LVFS are the most visible related projects because they use Jcat files for firmware metadata and payload signature handling. GnuTLS certtool, GPG, PKCS#7, and AppStream-style firmware metadata sit around the same workflow.

安全态势

风险级别：绿色

library-like package without higher-risk signals.

风险分类器

绿色 风险 · 低 置信度 · appliance

原因

  • library-like package without higher-risk signals

信号

  • metadata:library-like

安装行为

  • 未记录 Homebrew bottle 元数据。

建议审查

在无人值守的代理使用前，请检查该工具是否读取明文凭据、写入远程状态、发布制品或调用插件。

可执行文件

已安装的可执行文件

命令类型暴露范围备注
jcat-tool可执行文件已索引可执行文件从本地可执行文件索引发现。

新鲜度

版本和新鲜度

这些信号区分页生成时间、软件包管理器活动和上游发布比较。只有存在证据 URL 和可比较版本时，才会提示版本落后。

页面生成时间2026-08-03
管理器版本0.2.6
管理器更新时间
本地数据未知
上游不可用
检测到的最新版本未检测到
  • OK没有生成新鲜度警告。

安装元数据

软件包元数据

软件包键brew:libjcat
版本0.2.6
软件包管理器Homebrew
主页https://github.com/hughsie/libjcat
仓库https://github.com/hughsie/libjcat
Bottle未记录
服务未声明

源数据库匹配

其他软件包管理器记录

匹配项来自外部软件包管理器索引，并与本地 Automic Vault 软件包链接分开显示。

Debian apt95%

gir1.2-jcat-1.0 0.2.3-1

GObject introspection data for libjcat

https://github.com/hughsie/libjcat

sudo apt install gir1.2-jcat-1.0
  • Section: introspection
  • Architecture: amd64
  • Source Package: libjcat
  • 4 依赖
  • normalized package name match
  • 匹配方式：Libjcat
Debian stable package indexes · deb.debian.org · Debian stable package indexes: gir1.2-jcat-1.0 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

jcat 0.2.3-1

JSON catalog library tool

https://github.com/hughsie/libjcat

sudo apt install jcat
  • Section: libs
  • Architecture: amd64
  • Source Package: libjcat
  • 3 依赖
  • normalized package name match
  • 匹配方式：Libjcat
Debian stable package indexes · deb.debian.org · Debian stable package indexes: jcat from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libjcat-dev 0.2.3-1

development files for libjcat

https://github.com/hughsie/libjcat

sudo apt install libjcat-dev
  • Section: libdevel
  • Architecture: amd64
  • Source Package: libjcat
  • 6 依赖
  • normalized package name match
  • 匹配方式：Libjcat
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libjcat-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libjcat-tests 0.2.3-1

Installed tests for libjcat1

https://github.com/hughsie/libjcat

sudo apt install libjcat-tests
  • Section: libs
  • Architecture: amd64
  • Source Package: libjcat
  • 8 依赖
  • normalized package name match
  • 匹配方式：Libjcat
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libjcat-tests from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libjcat1 0.2.3-1

JSON catalog library

https://github.com/hughsie/libjcat

sudo apt install libjcat1
  • Section: libs
  • Architecture: amd64
  • Source Package: libjcat
  • 6 依赖
  • normalized package name match
  • 匹配方式：Libjcat
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libjcat1 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Nix95%

libjcat

nix profile install nixpkgs#libjcat
  • normalized package name match
  • 匹配方式：Libjcat
nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/li/libjcat/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
Ubuntu apt95%

gir1.2-jcat-1.0 0.2.0-2build3

GObject introspection data for libjcat

https://github.com/hughsie/libjcat

sudo apt install gir1.2-jcat-1.0
  • Section: introspection
  • Architecture: amd64
  • Source Package: libjcat
  • 4 依赖
  • normalized package name match
  • 匹配方式：Libjcat
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: gir1.2-jcat-1.0 from https://archive.ubuntu.com/ubuntu/dists/noble/main/binary-amd64/Packages.gz
Ubuntu apt95%

jcat 0.2.0-2build3

JSON catalog library tool

https://github.com/hughsie/libjcat

sudo apt install jcat
  • Section: universe/libs
  • Architecture: amd64
  • Source Package: libjcat
  • 3 依赖
  • normalized package name match
  • 匹配方式：Libjcat
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: jcat from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libjcat-dev 0.2.0-2build3

development files for libjcat

https://github.com/hughsie/libjcat

sudo apt install libjcat-dev
  • Section: universe/libdevel
  • Architecture: amd64
  • Source Package: libjcat
  • 6 依赖
  • normalized package name match
  • 匹配方式：Libjcat
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libjcat-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libjcat-tests 0.2.0-2build3

Installed tests for libjcat1

https://github.com/hughsie/libjcat

sudo apt install libjcat-tests
  • Section: universe/libs
  • Architecture: amd64
  • Source Package: libjcat
  • 9 依赖
  • normalized package name match
  • 匹配方式：Libjcat
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libjcat-tests from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libjcat1 0.2.0-2build3

JSON catalog library

https://github.com/hughsie/libjcat

sudo apt install libjcat1
  • Section: libs
  • Architecture: amd64
  • Source Package: libjcat
  • 7 依赖
  • normalized package name match
  • 匹配方式：Libjcat
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libjcat1 from https://archive.ubuntu.com/ubuntu/dists/noble/main/binary-amd64/Packages.gz
apk95%

libjcat 0.2.3-r2

Library for reading and writing Jcat files

https://github.com/hughsie/libjcat

sudo apk add libjcat
  • License: LGPL-2.1-or-later
  • Architecture: x86_64
  • Source Package: libjcat
  • 1 依赖
  • 1 提供
  • normalized package name match
  • 匹配方式：Libjcat
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: libjcat from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
apk95%

libjcat-dev 0.2.3-r2

Library for reading and writing Jcat files (development files)

https://github.com/hughsie/libjcat

sudo apk add libjcat-dev
  • License: LGPL-2.1-or-later
  • Architecture: x86_64
  • Source Package: libjcat
  • 1 依赖
  • 1 提供
  • normalized package name match
  • 匹配方式：Libjcat
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: libjcat-dev from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
apk95%

libjcat-doc 0.2.3-r2

Library for reading and writing Jcat files (documentation)

https://github.com/hughsie/libjcat

sudo apk add libjcat-doc
  • License: LGPL-2.1-or-later
  • Architecture: x86_64
  • Source Package: libjcat
  • normalized package name match
  • 匹配方式：Libjcat
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: libjcat-doc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
apk95%

libjcat-tools 0.2.3-r2

Library for reading and writing Jcat files

https://github.com/hughsie/libjcat

sudo apk add libjcat-tools
  • License: LGPL-2.1-or-later
  • Architecture: x86_64
  • Source Package: libjcat
  • 1 依赖
  • 1 提供
  • normalized package name match
  • 匹配方式：Libjcat
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: libjcat-tools from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
dnf95%

libjcat 0.2.6-1.fc45

Library for reading Jcat files

https://github.com/hughsie/libjcat

sudo dnf install libjcat
  • License: LGPL-2.1-or-later
  • Category: Unspecified
  • Architecture: i686
  • Source Package: libjcat
  • 11 依赖
  • 2 提供
  • normalized package name match
  • 匹配方式：Libjcat
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: libjcat from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst

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