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Set gpg login attribute as separate argument instead of $IDENTITY #535

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Set gpg login attribute as separate argument instead of $IDENTITY #535

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9a85fdd
link to pgp login data object documentation
jbagnara May 15, 2026
b554ff4
Use separate variable for gpg login attribute
jbagnara May 15, 2026
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13 changes: 10 additions & 3 deletions README.md
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Expand Up @@ -881,19 +881,26 @@ ykman openpgp access set-retries 5 5 5 -f -a $ADMIN_PIN

## Set attributes

Use previously set values:
Set a public identifier for the gpg subsystem:
```console
export GPG_LOGIN_ATTR="My Cool YubiKey - 2025"
```
> [!IMPORTANT]
> Anyone with access to the yubikey can see this attribute, even without authentication. It is recommended not to include personally identifiable information in this field to prevent a bad actor from associating a lost yubikey with its owner.

Update the login attribute:

```console
gpg --command-fd=0 --pinentry-mode=loopback --edit-card <<EOF
admin
login
$IDENTITY
$GPG_LOGIN_ATTR
$ADMIN_PIN
quit
EOF
```

[Smart card attributes](https://gnupg.org/howtos/card-howto/en/smartcard-howto-single.html) can also be set with `gpg --edit-card` and `admin` mode. Use `help` to see available options. The `login` attribute is [required](https://github.com/drduh/YubiKey-Guide/issues/461).
[Smart card attributes](https://gnupg.org/howtos/card-howto/en/smartcard-howto-single.html) can also be set with `gpg --edit-card` and `admin` mode. Use `help` to see available options. The [login](https://www.gnupg.org/documentation/manuals/gnupg/gpg_002dcard.html) attribute is [required](https://github.com/drduh/YubiKey-Guide/issues/461).

Run `gpg --card-status` to verify results (*Login data* field).

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