-----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-mattermost-15.0-stretch-amd64-xen.tar.bz2.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-mattermost-15.0-stretch-amd64-xen.tar.bz2 5313f7e2f63351b922216d1d9c11895dbbb39ba287be81677e99e42ea907740f turnkey-mattermost-15.0-stretch-amd64-xen.tar.bz2 $ sha512sum turnkey-mattermost-15.0-stretch-amd64-xen.tar.bz2 a9facb4796fa4fd7aee834bf9752773e81b1bacf0f0aea455fe1172a34d7daab1b300086d889da801b30d9504d7943b7ffa23811c7f663efe0c6761b3ec56b2e turnkey-mattermost-15.0-stretch-amd64-xen.tar.bz2 Note, you can compare hashes automatically:: $ sha256sum -c turnkey-mattermost-15.0-stretch-amd64-xen.tar.bz2.hash turnkey-mattermost-15.0-stretch-amd64-xen.tar.bz2: OK $ sha512sum -c turnkey-mattermost-15.0-stretch-amd64-xen.tar.bz2.hash turnkey-mattermost-15.0-stretch-amd64-xen.tar.bz2: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAluM++QACgkQhcJelaFu uU38nAf8CzgfQOQrVLweWZeRK1wZHR18COpslxdG7E4gkY1XeBUu4jfgFU57GAX/ zWFJY1pbGsC8KVQrdZN2LuMc6KM6ORppdKxbu49n3+D/7cghw9LKu35VGRUXVzqV sCkIu3Vr6RTLWjowgOZSTpAd9Xzvi+38Ie2vS6E3RqR0qaBoUGvcb5JKoFR6FZ6t ZFmsTkEou6lnDgNwBW0sPs2p+ryTUWOyups2wkYGbz9PThm86q/Z1FJmVir/IWM8 uNmnDsDNHQNK4quZkebooaNwNV01uWRTAfU40cx4+2EBQSioanTCCFF2/eJ49wUZ IoZgM+veWftvVm/r1dKkIcRAQwTh/Q== =9CkV -----END PGP SIGNATURE-----