SOFTWARE SIGNING KEYS

NLnet Labs software releases are cryptographically signed. Users can verify signatures to check the authenticity of their software downloads. This page provides the OpenPGP public keys.

NSD, Unbound, ldns

Releases published as tar-balls (NSD, Unbound and ldns) after January 1st, 2026 are signed with the following release key.

The OpenPGP key can be copied from below or downloaded here.

Key ID: A144 323D EAAC DF45
Fingerprint: 2310 1869 0C4D 903E F419  146A A144 323D EAAC DF45
User ID: NLnet Labs releases signing key G2 <releases@nlnetlabs.nl>

-----BEGIN PGP PUBLIC KEY BLOCK-----

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=4R8U
-----END PGP PUBLIC KEY BLOCK-----

Verification works as follows:

# Save the signing key to a file named 'nlnetlabs.certs'
# Download a release and its signature from the website

# Verify the signature using GnuPG
gpgv --keyring=nlnetlabs.certs unbound-9000.tar.gz.asc unbound-9000.tar.gz
# or using Sequoia GPG
sqv --keyring=nlnetlabs.certs --signature-file=unbound-9000.tar.gz.asc unbound-9000.tar.gz

Packages at packages.nlnetlabs.nl

Releases that are published as packages to packages.nlnetlabs.nl are signed with the package signing key.

The OpenPGP key can be copied from below or downloaded here.

Key ID: 94E9 2A07 08C4 CC43
Fingerprint: 2105 28A3 130A BAAE FFC8  6804 94E9 2A07 08C4 CC43
User ID: NLnet Labs Package Repository Signing Key (NLnet Labs Package Repository Signing Key) <pkg@nlnetlabs.nl>

-----BEGIN PGP PUBLIC KEY BLOCK-----

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=oelb
-----END PGP PUBLIC KEY BLOCK-----