Home > Just Learnt Something New (JLSN) > brave browser – The following signatures were invalid: EXPKEYSIG 4FE13824E3FFC656 Brave Software

brave browser – The following signatures were invalid: EXPKEYSIG 4FE13824E3FFC656 Brave Software

Problem:
Got the following error when trying to update. Mainly an issue with brave browser.


$ sudo apt-get update
...
snip
...
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://brave-browser-apt-release.s3.brave.com bionic InRelease: The following signatures were invalid: EXPKEYSIG 4FE13824E3FFC656 Brave Software
W: Failed to fetch https://brave-browser-apt-release.s3.brave.com/dists/bionic/InRelease The following signatures were invalid: EXPKEYSIG 4FE13824E3FFC656 Brave Software
W: Some index files failed to download. They have been ignored, or old ones used instead

Solution:
$ gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv 4FE13824E3FFC656
$ gpg --export --armor 4FE13824E3FFC656 | sudo apt-key add -

Source:
https://askubuntu.com/questions/13065/how-do-i-fix-the-gpg-error-no-pubkey

Note:
Running on Ubuntu 18.0

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