-----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-moodle-15.3-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-moodle-15.3-stretch-amd64.ova be28ae45e29c27b17cd2fde7f3bb71028471142301e79d18f40dcefe2de355f0 turnkey-moodle-15.3-stretch-amd64.ova $ sha512sum turnkey-moodle-15.3-stretch-amd64.ova 813b163a4da68fed07852656a70a244972011f807dd39110d832de142d48208d244e57e02f006b64371a4b28f267a696758798456d78ffc9377b56797895f641 turnkey-moodle-15.3-stretch-amd64.ova Note, you can compare hashes automatically:: $ sha256sum -c turnkey-moodle-15.3-stretch-amd64.ova.hash turnkey-moodle-15.3-stretch-amd64.ova: OK $ sha512sum -c turnkey-moodle-15.3-stretch-amd64.ova.hash turnkey-moodle-15.3-stretch-amd64.ova: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAl1GhVwACgkQhcJelaFu uU3SPAgAmk9cmCPVXLWeeGV0aAewos6hfo7/CQSEtinCUeca1Db5Q3jO5wS5lmuc Bvr8iU+PnD3PaHNrozgUgTP4RduUMn0sywRUQi/PMtt6C1zBQ+hc9eVoI+ChUFU5 uBRK8dBva6lYQ3683S8s9dhF62NMt1mhznsEp4boxZFNcK64asUFYftqEyLziWea qQV6YhphhkkUnCixlqC727VBkLcWLQoBs6B/B14oCiWDyFkcLUrG4U42Ugp3SDC8 r8Uy2kzYdixR/hP5y7ub2JOCiCurvY3+KKZbHeFu1rQ3u0R3guTH6OnNBz0rLroq 9iW54ksP8bKXMuKhrNRYEoAQpubiEQ== =yTU8 -----END PGP SIGNATURE-----