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BlastShield Documentation

GPG key expiry on Ubuntu and Debian Host Agent installations

Date: 26th January 2023

Components affected:

Previous installations of the Debian Host Agent and Ubuntu Host Agent. New installations from today are not affected.

Description of problem:

Already installed Host Agents on Ubuntu or Debian will be faced with the following error while running apt update:

W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://dl.blastwave.io/ubuntu focal InRelease: The following signatures were invalid: EXPKEYSIG E3978E66D4BFDB63 BlastWave, Inc. <support@blastwave.io> 

Recommended fix

To fix this, fetch the GPG key again:

  1. From the host where the Agent is installed:

    sudo curl https://dl.blastwave.io/ubuntu/blastwave.gpg -o /usr/share/keyrings/blastwave.gpg

  2. Once you have downloaded the new key, then you can install a package with the GPG key that BlastWave will update ahead of time to make sure there's no need for more manual updates:

    sudo apt update && sudo apt install blastwave-keyring

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