61 lines
1.5 KiB
Markdown
61 lines
1.5 KiB
Markdown
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---
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creation date: 2022-01-12
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tags: [note,linux,gpg,pgp]
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---
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# GPG
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## Creation
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**Really, set up an expiration date, otherwise you'll end up with non-revokable keys!**
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Or you do need the `revoke@example` trick which is ugly and not really revoking a key.
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Generate at least 3072 bit key with an expiration date, e.g. with Seahorse or `gpg` command line tool.
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## Distribution
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* Use https://keys.openpgp.org (`hkps://keys.openpgp.org`) because of address validation
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* SKS Pool is widely used (`hkp://eu.pool.sks-keyservers.net`) and pool syncs automatically
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* https://pgp.mit.edu slow but has a lot of keys
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## gpg.conf
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```
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keyserver hkp://keys.gnupg.net
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keyserver hkps://keys.openpgp.org
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keyserver hkp://pool.sks-keyservers.net:11371
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keyserver hkp://pgp.mit.edu:11371
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```
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## Seahorse for GNOME
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Search and edit with dconf `.../keyserver`:
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```
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['hkp://keys.gnupg.net', 'hkps://keys.openpgp.org', 'hkp://pool.sks-keyservers.net:11371', 'hkp://pgp.mit.edu:11371']
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```
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## Export/Revoke
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```
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export MY_GPG_ID=theID
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gpg --armor --output public-key.gpg --export $MY_GPG_ID
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gpg --armor --output private-key.gpg --export-secret-keys $MY_GPG_ID
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gpg --output revocation-certificate.asc --gen-revoke $MY_GPG_ID
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# optionally revoke with generated cert
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# - import public key first
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# - revoke
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# - sync with keyserver of your choice
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# gpg --import public-key.gpg
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gpg --import revocation-certificate.asc
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```
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## pinentry
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Edit your `gpg-agent.conf` and for a modernized look of pinentry add
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```shell
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pinentry-program /usr/bin/pinentry-gnome3
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```
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