-----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-owncloud_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-owncloud_15.1-1_amd64.tar.gz fc6babde149accb3788c2a306e9f0397326a37fa70bf61d1a01b37a4a38d60e5 debian-9-turnkey-owncloud_15.1-1_amd64.tar.gz $ sha512sum debian-9-turnkey-owncloud_15.1-1_amd64.tar.gz 274b59ed570ff2b26d2c88c47cacffd04b0a9671966d8181a7cb5a39a1d43097d63b57f5e40d22bfdd92219aed3375c4f2306dbbaf7db22afe795d2249f6f8f3 debian-9-turnkey-owncloud_15.1-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-owncloud_15.1-1_amd64.tar.gz.hash debian-9-turnkey-owncloud_15.1-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-owncloud_15.1-1_amd64.tar.gz.hash debian-9-turnkey-owncloud_15.1-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/phEACgkQhcJelaFu uU0H2Af9G5C307WMbFCa3zDcJYXd0n+V3b/g9wmOrJIiHyrLwE7KesKCpnUheTwA +Zk/7QoLoiCTI0iPnZsw8WajOpHUt/xE01yDIwgmLhWK1IDP/bG85VWxfDK146F1 zn9ebsPaNkdbYT0R7AdKt+HfZDrVSc41KwOFy4b/Pa1Rfk3OUy4YdkY2XRo4qyXs /XORodp2L/zYoEnTVXqsSbUB4eofNJCmlQvSMvStdp+/KRW5QQy39m8sbFnC+gix U4P8HzOMchEXNeRMKXMJwi24Aw6fh9kzOIniz43nROVDiEpfAJ7IJo4U5dPfsoZ6 99MpXlR+olmZeW3nDrF8FKuamGR1ug== =tvkN -----END PGP SIGNATURE-----