Hi @Julian,
There is a problem with your private key. Could you check:
- that your private key is in your keyring:
sudo su -s /bin/bash -c "gpg --home /var/www/.gnupg --import /var/www/passbolt/config/gpg/serverkey_private.asc" www-data
- that your private key is not encrypted with a password.
- that your version of gpg is v2:
gpg --version
. We have seen similar issues with the keyring being managed by gpg2 while the keys were imported by gpg1. - if it’s still not working, then try to generate another keypair, don’t forget to update the fingerprint in passbolt.php and try again.
Let me know if any of this works.