install

Additional install commands

macOS

Homebrewverified · 100%

brew install pgpdump

local Homebrew formula metadata

MacPortsverified · 94%

sudo port install pgpdump

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

Linux

Debian aptverified · 92%

sudo apt install pgpdump

Debian stable package indexes · pgpdump · source: deb.debian.org

Fedora dnfverified · 92%

sudo dnf install pgpdump

Fedora Rawhide package metadata · pgpdump · source: dl.fedoraproject.org

Nixverified · 92%

nix profile install nixpkgs#pgpdump

nixpkgs package indexes · pkgs/by-name/pg/pgpdump/package.nix · source: api.github.com

Arch Linux pacmanverified · 92%

sudo pacman -S pgpdump

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

openSUSE zypperverified · 92%

sudo zypper install pgpdump

openSUSE Tumbleweed package metadata · pgpdump · source: download.opensuse.org

overview

Package summary

PGP packet visualizer

Project links

Commands and aliases

pgpdump

history

Project history and usage

pgpdump is Kazu Yamamoto's command-line PGP packet visualizer, first released in 1998 and designed to turn binary or ASCII-armored PGP data into a readable description of its packets and fields.

Project history

Kazu Yamamoto released pgpdump in December 1998 as a visualizer for the packet structures used by PGP. The official page documents support for both the older PGP 2 format and OpenPGP.

The project continued to track the standardized OpenPGP packet format, including the lineage from RFC 1991 and RFC 2440 to RFC 4880, while remaining a focused command-line inspection tool.

Adoption history

pgpdump is available through Homebrew, Debian, Ubuntu, Fedora-family repositories, Arch Linux, Nix, MacPorts, and openSUSE according to source_facts.package-manager. Its unusually broad packaging for a compact inspection utility reflects the long-lived need for a readable OpenPGP packet dumper.

How it is used

Users pass a binary or ASCII-armored PGP object to pgpdump and inspect its decoded packet types, algorithms, key identifiers, timestamps, and other structural fields. It is primarily an analysis and debugging utility, not a credential store or encryption client.

Why package nerds care

pgpdump is a classic package-nerd utility: small, text-oriented, scriptable, mature, and useful when diagnosing an opaque binary format. Its longevity connects late-1990s PGP tooling with present-day OpenPGP troubleshooting.

Unlike a full encryption suite, it concentrates on packet structure, making it convenient for protocol learning, interoperability debugging, and inspecting keys, signatures, and encrypted messages without treating them as ordinary application data.

Timeline

1998: First pgpdump release in December.
1998: RFC 2440 standardized the original OpenPGP message format.
2007: RFC 4880 revised the OpenPGP format handled by the tool.
2026: The official project page lists version 0.37.

Related projects

pgpdump complements full OpenPGP implementations such as GnuPG by exposing packet structure rather than providing a complete key-management and encryption workflow.

Sources

Official project page: https://www.mew.org/~kazu/proj/pgpdump/en/
Official repository README: https://github.com/kazu-yamamoto/pgpdump#readme
source_facts.package-manager

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

narrow executable package without higher-risk signals

Signals

metadata:no-higher-risk-signals

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 platform targets.
Build metadata lists 2 build dependencies.

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

Command	Kind	Exposure	Note
`pgpdump`	cli	global executable

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 generated2026-09-19

manager version0.37

manager updated2026-09-11

local dataok

upstreamcurrent

latest detectedv0.37

https://github.com/kazu-yamamoto/pgpdump

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:pgpdump
Version	0.37
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/pgpdump
Homepage	https://www.mew.org/~kazu/proj/pgpdump/en/
Repository	https://github.com/kazu-yamamoto/pgpdump
Upstream docs	https://www.mew.org/~kazu/proj/pgpdump/en/
License	BSD-3-Clause
Source archive	https://github.com/kazu-yamamoto/pgpdump/archive/refs/tags/v0.37.tar.gz
Last updated	2026-09-11T02:43:44Z
Pulse	updated
Build dependencies	autoconf, automake
Uses from macOS	bzip2
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	pgpdump
Version Scheme	0
Revision	0
Head Version	HEAD
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	head stable

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%

pgpdump 0.36-1

PGP packet visualizer

https://www.mew.org/~kazu/proj/pgpdump/en/

sudo apt install pgpdump

Section: utils
Architecture: amd64
3 dependencies
normalized package name match
Matched by: Pgpdump

Debian stable package indexes · deb.debian.org · Debian stable package indexes: pgpdump from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

Nix95%

pgpdump

nix profile install nixpkgs#pgpdump

normalized package name match
Matched by: Pgpdump

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/pg/pgpdump/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

Ubuntu apt95%

pgpdump 0.36-1

PGP packet visualizer

https://www.mew.org/~kazu/proj/pgpdump/en/

sudo apt install pgpdump

Section: universe/utils
Architecture: amd64
3 dependencies
normalized package name match
Matched by: Pgpdump

Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: pgpdump from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz

dnf95%

pgpdump 0.37-1.fc45

PGP packet visualizer

https://www.mew.org/~kazu/proj/pgpdump/

sudo dnf install pgpdump

License: MIT
Category: Unspecified
Architecture: x86_64
Source Package: pgpdump
4 dependencies
1 provides
normalized package name match
Matched by: Pgpdump

Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: pgpdump from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/652278618dec9c023176a80c435a32a2c8154869fb0eb662c267a54df28d77d9-primary.xml.zst

pacman95%

pgpdump 0.37-1

PGP packet visualizer which displays the packet format

https://www.mew.org/~kazu/proj/pgpdump

sudo pacman -S pgpdump

License: BSD-3-Clause
Architecture: x86_64
3 dependencies
normalized package name match
Matched by: Pgpdump

Arch Linux sync databases · geo.mirror.pkgbuild.com · Arch Linux sync databases: pgpdump from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz

zypper95%

pgpdump 0.36-2.5

PGP packet visualizer

https://www.mew.org/~kazu/proj/pgpdump/en/

sudo zypper install pgpdump

License: BSD-3-Clause
Category: Unspecified
Architecture: x86_64
Source Package: pgpdump
1 dependencies
1 provides
normalized package name match
Matched by: Pgpdump

openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: pgpdump from https://download.opensuse.org/tumbleweed/repo/oss/repodata/d310d5a96106e1e8872a385adf98aaa23be9db5d80937a6717314e7e7f37715065c6c748ab7ccee6475d620b46979c0fe64235fc0c46988e17edf659578fcf31-primary.xml.zst

MacPorts95%

pgpdump

sudo port install pgpdump

normalized package name match
Matched by: Pgpdump

MacPorts ports tree · api.github.com · MacPorts ports tree: security/pgpdump/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.

Combined YAML source

View the package source record on GitHub.

combined/pgpdump.yml

Used sources

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

Install pgpdump with Homebrew, apt, dnf, MacPorts, Nix, pacman, zypper

Additional install commands

macOS

Linux

Package summary

Project links

Commands and aliases

Project history and usage

Project history

Adoption history

How it is used

Why package nerds care

Timeline

Related projects

Sources

Risk level: green

Risk classifier

Why

Signals

Install behavior

Recommended review

Installed executables

Version and freshness

Package metadata

Source database details

Other package-manager records

Internal package links

Topical hubs

Related tools

Same workflow

Agent security guides

Generated from repository data

Combined YAML source

Used sources