Create your key using the 25519 curve — it's cool, and it's short:
gpg --expert --full-gen-key
Enter the following at each of the prompts:
9 # ECC and ECC
1 # 25519
40y # 40 years
Integrate gpg with GitHub: https://help.github.com/articles/signing-commits-with-gpg/
List your keys
gpg -K --keyid-format long --with-colons --with-fingerprint
Export the one you want (look next to sec:u:256:22)
gpg --export -a 93B3BB2C9F7F5BA4
Export a public key in a human-readable format:
gpg --output bcunnie.gpg --export --armor bcunnie@vmware.com
Configure git to use your key:
git config --global user.signingkey 93B3BB2C9F7F5BA4
git config --global commit.gpgsign true
To fix error: gpg failed to sign the data when committing
export GPG_TTY=$(tty)
To delete a key:
gpg --list-keys
...
pub ed25519 2018-10-11 [SC] [expires: 2024-10-09]
FB79E69D115334D081A56A032BBE9A01CFC8E752
uid [ unknown] Brian Cunnie <bcunnie@pivotal.io>
uid [ unknown] Rowan Jacobs <rojacobs@pivotal.io>
sub cv25519 2018-10-11 [E] [expires: 2024-10-09]
gpg --delete-secret-keys FB79E69D115334D081A56A032BBE9A01CFC8E752
# MANY confirmations
gpg --delete-key FB79E69D115334D081A56A032BBE9A01CFC8E752
To edit a key:
gpg --list-keys
...
pub ed25519 2018-07-17 [SC] [expires: 2024-07-15]
08A8C8E8C9A1D3350413FA2E93B3BB2C9F7F5BA4
uid [ultimate] Brian Cunnie (Work email) <bcunnie@pivotal.io>
uid [ultimate] Brian Cunnie <brian.cunnie@gmail.com>
sub cv25519 2018-07-17 [E] [expires: 2024-07-15]
gpg --edit-key 08A8C8E8C9A1D3350413FA2E93B3BB2C9F7F5BA4
uid
sec ed25519/93B3BB2C9F7F5BA4
created: 2018-07-17 expires: 2024-07-15 usage: SC
trust: ultimate validity: ultimate
ssb cv25519/B56458A7AE187951
created: 2018-07-17 expires: 2024-07-15 usage: E
[ultimate] (1). Brian Cunnie (Work email) <bcunnie@pivotal.io>
[ultimate] (2) Brian Cunnie <brian.cunnie@gmail.com>
uid 1
deluid
adduid
Real name: Brian Cunnie
Email address: bcunnie@vmware.com
save