-----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-nextcloud_15.2-1_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-nextcloud_15.2-1_amd64.tar.gz 08be4e6038bd44d61688b69915d46b9c04b84ee66b4738829e54558a25d02f5c debian-9-turnkey-nextcloud_15.2-1_amd64.tar.gz $ sha512sum debian-9-turnkey-nextcloud_15.2-1_amd64.tar.gz 623dc766c99f183cb2ee405a66fa55d149dc11efd19c90a5f9652ef310f94c3c2e065390217966d0bc7dab2cc93216c5fe721c655f2eddfe6dd5aa33a2bb559d debian-9-turnkey-nextcloud_15.2-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-nextcloud_15.2-1_amd64.tar.gz.hash debian-9-turnkey-nextcloud_15.2-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-nextcloud_15.2-1_amd64.tar.gz.hash debian-9-turnkey-nextcloud_15.2-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAl0TG/wACgkQhcJelaFu uU0YjAf9HjRfdIP+SeLqk/8ciie/nxjhEfgv+vTs5D5e7i9A87r9t4ufwTVMM8oA ne0daFPF7vKzFF7A/+KzQJ1OXnYcRHw/WExDLnAxhxMfInKyr2uIFPDOLesvhkah AeNg+0CccNgm1xi/vCdTQit24KgGgUpWWGVoZALs0XA2mxTpC5K9Ic9PqjZL8UJi lOJQgyW+12XZXBq7RF8IVj4SOgGBZcJT4xIe1YGNHIIbH8dDE4dgYwr6ufg9j/CT 92aOFw71RqBTlVPnx3xHIXdnSrouf/ZrgpjfPGEoTrBCpd6vA1XXbMnMcAj2UqaM axobg0+1B+5YotfukzXQIwn6NnaVbQ== =8xdW -----END PGP SIGNATURE-----