GnuPG / GPG

• This cheatsheet was useful for some basic usage, in particular extracting data out of a key using gpg.
• Extracting a key’s ID can be done with gpg -k --with-colons | cut -d ':' -f5 for the 5th field

Troubleshooting

If the following error is received:

error: gpg failed to sign the data
fatal: failed to write commit object

…then this StackOverflow article has a number of diagnostic steps to find the root cause of the issue.