2022-10-17 01:59:22 +00:00
You can un-expire a GPG key.
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:date: 2012-01-13 03:54
:author: tyrel
2022-10-17 03:02:04 +00:00
:category: Tech
:category: linux, gpg
2022-10-17 01:59:22 +00:00
:slug: you-can-un-expire-a-gpg-key
:status: published
Today we had a problem at work on a system. Without getting into too much detail as to give away secrets behind the verbal NDA I am behind, I will just say that it had to do with a GPG public key of mine that was expired on a dev machine, accidentally propagating during install to a production machine.
This key had a sub key as well, so figuring out this was tricky.
To start, you can list your gpg keys like so
`` gpg --list-keys ``
| This will list keys such as
| `` pub 4096R/01A53981 2011-11-09 [expires: 2016-11-07] ``
| `` uid ``
| `` sub 4096R/C482F56D 2011-11-09 [expires: 2016-11-07] ``
| To make this not expire, (same steps to change expiration date to another time), you must first edit the key
| `` gpg --edit-key 01A53981 ``
| You will then see a gpg prompt
`` gpg> ``
| Type “expire” in and you will be prompted for how long to change it to
| `` Changing expiration time for the primary key. ``
| `` Please specify how long the key should be valid. ``
| `` ``
| `` ``
| `` ``
| `` ``
| `` ``
| You are then done setting the expiration on the primary key, if you have sub key, doing this is as easy as typing
| `` key 1 ``
| and repeating the expiration step.
To finish and wrap things up, type `` save `` and you are done.
