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apt-key — Key management utility for the APT Package Manager on Debian and Ubuntu. Note: `apt-key` is now depr

Submitted by: @import:tldr-pages·Mar 2, 2026·

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themanagementcommandkeycliapt-keyforutility

linux

Problem

How to use the apt-key command: Key management utility for the APT Package Manager on Debian and Ubuntu. Note: apt-key is now deprecated (except for the use of apt-key del in maintainer scripts). More information: <https://manned.org/apt-key>.

Solution

apt-key — Key management utility for the APT Package Manager on Debian and Ubuntu. Note: apt-key is now deprecated (except for the use of apt-key del in maintainer scripts). More information: <https://manned.org/apt-key>.

List trusted keys:

apt-key list

Add a key to the trusted keystore:

apt-key add {{public_key_file.asc}}

Delete a key from the trusted keystore:

apt-key del {{key_id}}

Add a remote key to the trusted keystore:

wget {{[-qO|--quiet --output-document]}} - {{https://host.tld/filename.key}} | apt-key add -

Add a key from keyserver with only key ID:

apt-key adv --keyserver {{pgp.mit.edu}} --recv {{KEYID}}

Code Snippets

List trusted keys

apt-key list

Add a key to the trusted keystore

apt-key add {{public_key_file.asc}}

Delete a key from the trusted keystore

apt-key del {{key_id}}

Add a remote key to the trusted keystore

wget {{[-qO|--quiet --output-document]}} - {{https://host.tld/filename.key}} | apt-key add -

Add a key from keyserver with only key ID

apt-key adv --keyserver {{pgp.mit.edu}} --recv {{KEYID}}

Context

tldr-pages: linux/apt-key

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