2019-08-02 02:15:39 +00:00
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# GPG Cheat Sheet
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## Create a key
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2020-05-19 03:02:34 +00:00
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* `gpg --expert --full-generate-key`
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* RSA (set your own capabilities)
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* Set to Certify only
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* 4096
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* 2020-01-01
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* `gpg --expert --edit-key <userid>`
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* `addkey` (Create 3, one for sign, encrypt, authenticate)
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* `addphoto` *(240x288)*
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* `save`
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* `quit`
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* `gpg -a --output revoke.asc --gen-revoke '<fingerprint>'`
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2019-06-28 02:39:56 +00:00
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2019-08-02 02:15:39 +00:00
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## Backup key
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2020-05-19 03:02:34 +00:00
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* `gpg -a --export-secret-key <userid> > secret_key.gpg`
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2019-06-28 02:39:56 +00:00
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* `gpg -a --export-secret-subkeys <userid> > secret_subkeys.gpg`
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* `gpg --delete-secret-keys <userid>`
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* `gpg --import secret_subkeys.gpg`
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* `gpg --list-secret-keys`
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2020-05-19 03:02:34 +00:00
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* `gpg --edit-key <KEYID>` *(type `trust` and press `5`)*
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2019-06-28 02:39:56 +00:00
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2019-08-02 02:15:39 +00:00
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## Import/Export public key
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2019-06-28 02:39:56 +00:00
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* `gpg --import public.key`
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* `gpg --output public.key --armor --export <userid>`
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* `gpg --export-secret-keys --armor <userid> > privkey.asc`
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2019-08-02 02:15:39 +00:00
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## List (secret) keys
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2019-06-28 02:39:56 +00:00
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* `gpg --list-keys`
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* `gpg --list-secret-keys`
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2019-08-02 02:15:39 +00:00
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## Encrypt/Decrypt
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2019-06-28 02:39:56 +00:00
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* `gpg --recipient user-id --encrypt doc`
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* `gpg --output doc --decrypt doc.gpg`
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or...
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* `gpg -c --s2k-cipher-algo AES256 --s2k-digest-algo SHA512 --s2k-count 65536 doc`
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* `gpg --output doc --decrypt doc.gpg`
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2019-08-02 02:15:39 +00:00
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## Signing
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2019-06-28 02:39:56 +00:00
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* `gpg --output doc.sig --sign doc`
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* `gpg --output doc.sig --clearsign doc`
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* `gpg --output doc.sig --detach-sig doc`
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2019-08-02 02:15:39 +00:00
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## Verify
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2020-05-19 03:02:34 +00:00
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* `gpg --verify example.sig`
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* `gpg --verify example.sig /path/to/example.iso`
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2019-06-28 02:39:56 +00:00
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* `gpg --with-fingerprint <keyfile>`
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2019-08-02 02:15:39 +00:00
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## Send keys
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2020-05-19 03:02:34 +00:00
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* `gpg --keyserver <keyserver> --send-keys <user-id>`
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* `gpg --recv-key '<fingerprint> && gpg --fingerprint '<fingerprint>'`
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* `gpg --search-keys '<userid>'`
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2019-06-28 02:39:56 +00:00
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2019-08-02 02:15:39 +00:00
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## Sign key
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2019-06-28 02:39:56 +00:00
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* `gpg --lsign-key '<fingerprint>'`
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or...
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* `gpg --sign-key '<fingerprint>'`
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