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provide OpenPGP and S/MIME encryption, signatures, and key management with the GNU cryptography toolchain

OSS scale score Not calculatedOSS health 100
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OSS scale score is an unbounded metric that log-compresses and weights Stars, Watchers, Forks, and Contributors. Discovery score is the current OSS scale score minus the score at discovery. Update pace is commits in the last 30 days, growth momentum is the OSS scale score difference within the recent observation window, and OSS health is a 0–100 rating based on available recency, Community Health, and release data.

Stars
988
Primary language
C
License
GPL-3.0-or-later
Repository last updated
Oct 1, 2026
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Overview

GnuPG is a security toolchain centered on OpenPGP encryption, signatures, and public/private key management, with S/MIME, gpg-agent, smart-card, and related capabilities. The 2.5 series is stable, and 2.5.24 is a September 23, 2026 bug-fix-oriented release.

Features and best fit

Based on official documentation; not hands-on tested · Content checked:

Key features

Encrypt, decrypt, sign, and verify data with OpenPGP

The gpg CLI handles public-key encryption and digital signatures for files and messages and can be integrated into applications and automation.

Sources: [1][3]

Manage keys, agents, smart cards, and directory access

GnuPG combines public/private key management with gpg-agent, smart-card support, and access mechanisms for public-key directories.

Sources: [1]

Support S/MIME and SSH-agent use cases in addition to OpenPGP

GnuPG 2 provides S/MIME and Secure Shell agent capabilities alongside OpenPGP, making it a broader cryptographic engine.

Sources: [1][3]

Best fit

Fits software-release signing, secure mail, artifact verification, and key management

It is useful for CLI-driven signing and integrity workflows and for systems that need centrally managed OpenPGP or S/MIME keys.

Sources: [1]

Before adoption

The GitHub repository is a read-only mirror, not the contribution endpoint

The repository description states that maintainers do not track the GitHub mirror. Bugs and patches should follow the official GnuPG tracker and mailing-list process.

Sources: [1]

The 2.4 line is EOL; use the supported 2.5 stable line

Official download information marks the 2.4 branch end-of-life as June 30, 2026 and lists 2.5 as stable. Official source tarballs include signature files, which should be verified before installation.

Sources: [3][4]

Official sources

  1. [1]GnuPG 2.5.24 source README(2026-10-04)
  2. [2]GnuPG 2.5.24 configure metadata(2026-10-04)
  3. [3]GnuPG 2.5.24 release announcement(2026-10-04)
  4. [4]GnuPG official download directory(2026-10-04)
  5. [5]GnuPG GPLv3 license(2026-10-04)
Supplemental curator note

GitHub is a mirror not tracked for contributions. Use the official tracker/mailing list, verify official distribution signatures, and avoid the EOL 2.4 branch.

Try it in 3 steps

  1. 1

    Download the official GnuPG 2.5.24 source and signature

    Use the official distribution rather than the GitHub mirror. Verify the signature with the official GnuPG release signing key before building.

    curl -LO https://gnupg.org/ftp/gcrypt/gnupg/gnupg-2.5.24.tar.bz2 && curl -LO https://gnupg.org/ftp/gcrypt/gnupg/gnupg-2.5.24.tar.bz2.sig
  2. 2

    Extract the source and confirm the version

    Confirm that the signature file is present and that the extracted release identifies itself as 2.5.24.

    test -s gnupg-2.5.24.tar.bz2.sig && tar -xjf gnupg-2.5.24.tar.bz2 && cat gnupg-2.5.24/VERSION
  3. 3

    Inspect configure options without building

    Check the release configure entry point without compiling dependencies or installing anything system-wide.

    cd gnupg-2.5.24 && ./configure --help | head -n 40
Check the official README

Growth

Growth trends · Last 30 days

988 Stars

Trend data is still being collected.

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GitHub data

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GitHub Topics

  • openpgp
Stars
988
Forks
218
Watchers
988
Open issues
1
Owner type
Organization
Primary language
C
Repository last updated
Oct 1, 2026
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