-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 To ensure the image has not been corrupted in transmit or tampered with, perform the following two steps to cryptographically verify image integrity: 1. Verify the authenticity of this file by checking that it is signed with our GPG release key: $ curl https://keybase.io/turnkeylinux/pgp_keys.asc | gpg --import $ gpg --list-keys --with-fingerprint release@turnkeylinux.com pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] Key fingerprint = 694C FF26 795A 29BA E07B 4EB5 85C2 5E95 A16E B94D uid Turnkey Linux Release Key $ gpg --verify turnkey-domain-controller-15.0-stretch-amd64.ova.hash gpg: Signature made using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key " For extra credit you can validate the key's authenticity at: https://keybase.io/turnkeylinux 2. Recalculate the image hash and make sure it matches your choice of hash below. $ sha256sum turnkey-domain-controller-15.0-stretch-amd64.ova ad5a3c7a378fd2936bdaeb09c483f1028c70df65a4165d171168200c4de8ad26 turnkey-domain-controller-15.0-stretch-amd64.ova $ sha512sum turnkey-domain-controller-15.0-stretch-amd64.ova 008d32fad9cd8f96510465418711f296968afe2f95fbb55393a321c88582d618e20b140b02382a337d83921c25bb19ea8f8e19c59d8a915d77781668c324375c turnkey-domain-controller-15.0-stretch-amd64.ova Note, you can compare hashes automatically:: $ sha256sum -c turnkey-domain-controller-15.0-stretch-amd64.ova.hash turnkey-domain-controller-15.0-stretch-amd64.ova: OK $ sha512sum -c turnkey-domain-controller-15.0-stretch-amd64.ova.hash turnkey-domain-controller-15.0-stretch-amd64.ova: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlvITO8ACgkQhcJelaFu uU0HqQgAycb5G5b1GLv+dljpXSIIT/EnY2exjpbOnx2qQjJBIuNuav2ZQv+nTHvu yaDug+BGkzPHp9j8nLSjMhIpnoNeL8ptEXy518LAgzpRaPVavTbo5tQwKn5FlbOG 7HcMrWbhpjbmrVzIqu77/hct1lQ6IbzHrcaoUqBBhsmhQZgMz76tgCdiIZwK3UlK vD09dlckzNXCS29RREVnd4ujm+J2po9m8Gs215+F22RGQ2HUALh80bGY0MugIky/ SJdiWm6M5aLUYw1cej4A1xtJdwOe3+rwW1PiTZhP9fmT3PpZ6yJgyrR7WjcK4j5f EI/2sP58w1C7/fdQuGgV0t0elu+aGg== =o22Q -----END PGP SIGNATURE-----