mikaela.github.io/n/gpg.md

---
title: GPG notes without a better place
excerpt:
  Creating Ed25519/future key, configuring WKD, Keyoxide PGP and something on
  Keybase.
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---

# Quick GPG notes where I may find them

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<em lang="fi">Automaattinen sisällysluettelo</em> / <em lang="en">Automatically generated Table of Contents</em>

- [Ed25519 (or future default) key creation](#ed25519-or-future-default-key-creation)
- [Keybase](#keybase)
- [Claws-mail note that is somewhat related.](#claws-mail-note-that-is-somewhat-related)
- [WKD](#wkd)
- [Keyoxide](#keyoxide)
  - [Keyoxide docs](#keyoxide-docs)

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## Ed25519 (or future default) key creation

To create an Ed25519 key, or whatever will be the default version in the future
as defined by your GPG version:

```
gpg2 --quick-gen-key address@domain.example future-default
```

Note the keyid and edit it

```
gpg2 --edit-key KEYID
adduid # here fill your name and details as asked no comments\*
1 # to select the uid the first command generated
deluid # to delete the uid which doesn't contain your name
save
```

\*
[OpenPGP User ID Comments considered harmful by dkg on debian-administrator.org (via web.archive.org)](https://web.archive.org/web/20201020082313/https://debian-administration.org/users/dkg/weblog/97)

Then you are ready to publish the public key however you generally publish it,
preferably in multiple places from where some recognise revokation certificates
if the time ever comes.

NOTE: You can extend the expiry time of an expired gpg signature by issuing the
`expire` command in `--edit-key` and the key is valid again when the update is
reimported to gpg keyrings by other people.

## Keybase

To publish the key `keybase pgp select --multi` (where multi is required for
multiple PGP keys per account) and to submit changes to it,
`keybase pgp update --all` (where --all is again necessary only if you have
multiple keys).

## Claws-mail note that is somewhat related.

Debian:
`sudo apt install claws-mail claws-mail-address-keeper claws-mail-attach-warner claws-mail-gdata-plugin claws-mail-pgpinline claws-mail-pgpmime claws-mail-smime-plugin`

Load plugins from Configuration (menu) --> Plugins --> Load, they are all
somewhere in `/usr/lib/x86_64-linux-gnu/claws-mail/plugins` or similar path.

It wants to read `~/.signature` which I have like:

```
Aminda Suomalainen
https://aminda.eu/
69FF 455A 869F 9031 A691  E0F1 9939 2F62 BAE3 0723

```

My other hats have like:

```
Aminda Suomalainen
position, where, wwwpage
email address
xxx xxx xxxx
xxxx xxxx xxxx xxxx xxxx  xxxx xxxx xxxx xxxx xxxx

```

Note the empty line in the end, as PGP/INLINE is the way to sign emails, it the
PGP signature comes after it and in my opinion looks a bit cleaner with the
signature ending to an empty line.

---

## WKD

Setting up GPG WKD (Web Key Directory), _mostly stripped/adjusted from Matt Rude
whose page is NXDOMAIN and not in Wayback Machine.
[What I find is](https://openpgpkey.mattrude.com/) pointers to
[1](https://wiki.gnupg.org/WKD) [2](https://wiki.gnupg.org/WKS)
[3](https://tools.ietf.org/html/draft-koch-openpgp-webkey-service)_

Requires a control over domain/.well-known and email under that domain.

1. cd into site root
2. `mkdir -p .well-known/openpgpkey/hu`
3. `touch .well-known/openpgpkey/policy`
4. `gpg --list-keys --with-wkd <search-that-matches-your-key>`
5. `gpg --no-armor --export <YourKeyID> > .well-known/openpgpkey/hu/<YourWKD>`
6. repeat 5. for `+git` address and similar if applicable
7. in Jekyll `_config.yml` ensure existence of `include: [.well-known]` if
   applicable.
8. deploy
9. test with
   `gpg -v --auto-key-locate clear,wkd,nodefault --locate-key email@example.net`

NOTE: The empty `policy` goes to the `openpgpkey` directory, not `hu` (I
initially failed at this part)

NOTE: only one key/WKD/email.

---

## Keyoxide

Keyoxide can use PGP keys as profiles and looks at their notations. Useful
commands in `gpg --edit-key "key fingerprint here"`:

- Display notations: `showpref`
- Add notations: `notation`
- Remove notations: `notation` from `showpref` with a `-` in the beginning

Don't forget to
`gpg --keyserver hkps://keys.openpgp.org --send-keys "your keyid here"` !

### Keyoxide docs

- [Generating a profile](https://docs.keyoxide.org/guides/openpgp-profile-gnupg/)
- [Available claims/proofs](https://docs.keyoxide.org/service-providers/)
  - See bottom of the sidebar.
- [Identity proof formats including hashing tool](https://docs.keyoxide.org/understanding-keyoxide/identity-proof-formats/)