-----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 debian-9-turnkey-collabtive_15.1-1_amd64.tar.gz.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 debian-9-turnkey-collabtive_15.1-1_amd64.tar.gz e481eda2d1091d732fdf5e4d2db8503ccb841ab8264d5aa6244ca144c46aad99 debian-9-turnkey-collabtive_15.1-1_amd64.tar.gz $ sha512sum debian-9-turnkey-collabtive_15.1-1_amd64.tar.gz 61f17fe78be37ae6db5b34ceb959cde04b45d61cea0a3758b527ff063ab1081df64d9805c190fb7e8641268e08573cb0262487ac8191f5c04fac4569fa6316a4 debian-9-turnkey-collabtive_15.1-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-collabtive_15.1-1_amd64.tar.gz.hash debian-9-turnkey-collabtive_15.1-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-collabtive_15.1-1_amd64.tar.gz.hash debian-9-turnkey-collabtive_15.1-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlvITOkACgkQhcJelaFu uU2nSgf+J7WNxO6jnqz2ISK1EDH2rdSlWvuhefH7OQmdQllZr0cQP34nx4kfikFk EXHQxxm6YVOr85IuvSQSqGuGuNgh7rOzTEr5O4nROqK1NhJw/ACZ4VGMdupblVhT Z6rkjNssVVDjF6PeMc41r7lpq8NCscUH1gD84hpjeeavln8vuyCf+ppHAFWrlEnV 1FmE4a8jUAtJ5ntV3UNz9Rx7GThNxlpM59wbvv/RMIBqJyY3AQbzDgZXGB95MgTE og1kszBVUh7gifu8M4yRuaSnYOpZd/bMBnFivHYgdkLwVPTokCt0Vvd0Z2uKaHcB zYu55GzVqMqHEgg1F2fAlrXBiAdSIg== =nRhW -----END PGP SIGNATURE-----