pkg.soopen package index

brew / rank 13151

Install libgfshare with Homebrew, MacPorts, pacman, apt

Library for sharing secrets. Version 2.0.0 via Homebrew; verified from local package data. Also installable with debian: sudo apt install libgfshare-bin.

Install commandSecurity notes

install

Additional install commands

macOS

Homebrewverified · 100%
brew install libgfshare

local Homebrew formula metadata

MacPortsverified · 94%
sudo port install libgfshare

MacPorts ports tree · security/libgfshare/Portfile · source: api.github.com

Linux

Arch Linux pacmanverified · 92%
sudo pacman -S libgfshare

Arch Linux sync databases · libgfshare · source: geo.mirror.pkgbuild.com

Debian aptverified · 92%
sudo apt install libgfshare-bin

Debian stable package indexes · libgfshare-bin · source: deb.debian.org

overview

Package summary

Library for sharing secrets

Commands and aliases

  • gfcombine
  • gfsplit

history

Project history and usage

libgfshare is a compact C implementation of Shamir secret sharing over GF(2^8), with gfsplit and gfcombine tools for splitting and recombining byte-oriented secrets.

Project history

The upstream README is signed by Daniel Silverstone on 2006-01-15 and describes the library as a Shamir Secret Sharing implementation in the Galois Field 2^8. It explicitly credits inspiration from Mark D. Wooding's Catacomb library.

A 2009-11-18 README note by Simon McVittie documents recovery behavior for earlier gfsplit outputs that could produce a share numbered 000, giving the project a small but concrete maintenance history.

Adoption history

libgfshare stayed niche but useful: package managers expose it for users who want a small secret-sharing library and command-line tools without a larger key-management suite. Its own README gives rare-use GPG secret keys, such as archive-signing keys, as a motivating example.

How it is used

The library splits a secret into C shares such that any T shares can recover it. The CLI tools make that model usable from shell scripts or operational key-handling procedures.

Why package nerds care

For package nerds, libgfshare is the tiny Unix-security-tool version of an important cryptographic idea: no service, no database, just a C library and two tools. Its significance is mostly in simplicity and auditability rather than broad adoption.

Timeline

  • 2006: Daniel Silverstone README note describes the initial library and its GF(2^8) Shamir-sharing design.
  • 2009: Simon McVittie README note documents recovery from earlier gfsplit share-numbering behavior.
  • 2026: GitHub repository metadata listed 80 commits and one tag.

Related projects

  • Shamir secret sharing is the underlying scheme. Mark D. Wooding's Catacomb library is named by the upstream README as an inspiration. GnuPG key-handling is a documented use case.

security posture

Risk level: green

library-like package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

  • library-like package without higher-risk signals

Signals

  • metadata:library-like

Install behavior

  • No Homebrew bottle metadata was recorded.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

CommandKindExposureNote
gfcombineexecutableindexed executableDiscovered from the local executable index.
gfsplitexecutableindexed executableDiscovered from the local executable index.

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-08-03
manager version2.0.0
manager updated
local dataunknown
upstreamnot available
latest detectednot detected
  • okNo freshness warnings were generated.

install metadata

Package metadata

Package keybrew:libgfshare
Version2.0.0
Package managerHomebrew
Homepagehttps://github.com/kinnison/libgfshare
Repositoryhttps://github.com/kinnison/libgfshare
Bottlenot recorded
Servicenone declared

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Debian apt95%

libgfshare-bin 2.0.0-7

utilities for multi-way secret-sharing

https://github.com/kinnison/libgfshare

sudo apt install libgfshare-bin
  • Section: utils
  • Architecture: amd64
  • Source Package: libgfshare
  • 2 dependencies
  • normalized package name match
  • Matched by: Libgfshare
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libgfshare-bin from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libgfshare-dev 2.0.0-7

library for multi-way secret-sharing (headers)

https://github.com/kinnison/libgfshare

sudo apt install libgfshare-dev
  • Section: libdevel
  • Architecture: amd64
  • Source Package: libgfshare
  • 1 dependencies
  • 1 optional deps
  • normalized package name match
  • Matched by: Libgfshare
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libgfshare-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libgfshare2 2.0.0-7

library for multi-way secret-sharing

https://github.com/kinnison/libgfshare

sudo apt install libgfshare2
  • Section: libs
  • Architecture: amd64
  • Source Package: libgfshare
  • 1 dependencies
  • 1 optional deps
  • normalized package name match
  • Matched by: Libgfshare
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libgfshare2 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Ubuntu apt95%

libgfshare-bin 2.0.0-6build1

utilities for multi-way secret-sharing

https://git.gitano.org.uk/libgfshare.git/

sudo apt install libgfshare-bin
  • Section: universe/libs
  • Architecture: amd64
  • Source Package: libgfshare
  • 2 dependencies
  • normalized package name match
  • Matched by: Libgfshare
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libgfshare-bin from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libgfshare-dev 2.0.0-6build1

library for multi-way secret-sharing (headers)

https://git.gitano.org.uk/libgfshare.git/

sudo apt install libgfshare-dev
  • Section: universe/libs
  • Architecture: amd64
  • Source Package: libgfshare
  • 1 dependencies
  • 1 optional deps
  • normalized package name match
  • Matched by: Libgfshare
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libgfshare-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libgfshare2 2.0.0-6build1

library for multi-way secret-sharing

https://git.gitano.org.uk/libgfshare.git/

sudo apt install libgfshare2
  • Section: universe/libs
  • Architecture: amd64
  • Source Package: libgfshare
  • 1 dependencies
  • 1 optional deps
  • normalized package name match
  • Matched by: Libgfshare
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libgfshare2 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
pacman95%

libgfshare 2.0.0-5

Utilities for multi-way secret-sharing

https://www.digital-scurf.org/software/libgfshare

sudo pacman -S libgfshare
  • License: MIT
  • Architecture: x86_64
  • 1 dependencies
  • 1 provides
  • normalized package name match
  • Matched by: Libgfshare
Arch Linux sync databases · geo.mirror.pkgbuild.com · Arch Linux sync databases: libgfshare from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz
MacPorts95%

libgfshare

sudo port install libgfshare
  • normalized package name match
  • Matched by: Libgfshare
MacPorts ports tree · api.github.com · MacPorts ports tree: security/libgfshare/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Used sources

  • Geiger risk classifier
  • cross-ecosystem install command graph
  • curated package history
  • external package-manager database matches
  • pkg.so package database
  • pkgdb category and tag curation