-----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-phpbb_15.0-1_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-phpbb_15.0-1_amd64.tar.gz 263c6a3a06e556e591c4e050f073a03c0bb03903b21e68c70eefb21f10b06c84 debian-9-turnkey-phpbb_15.0-1_amd64.tar.gz $ sha512sum debian-9-turnkey-phpbb_15.0-1_amd64.tar.gz 68f1538042b8cb370c1b7244232b316a2ad5803a4c0540378910391ab25b0bcee8cdcd921dd198269ef7ca0192dafe1514a8ae475ba14e57cbaea1c193a6e28a debian-9-turnkey-phpbb_15.0-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-phpbb_15.0-1_amd64.tar.gz.hash debian-9-turnkey-phpbb_15.0-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-phpbb_15.0-1_amd64.tar.gz.hash debian-9-turnkey-phpbb_15.0-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAluM+9kACgkQhcJelaFu uU3QHAf/ZCNIWEnCZa2raI+QB5DQv5j2ljxzBYyHDHbsr+MZs0qW3nkuFdRK4CHM L2rR8P16x3ms9hHn34qdq1LWiCC2iUQA2aMshlyvBeIWVxyr2iYBngIjm+rCMIvQ MZLoAY5MSzWMEHpS4Z5DLt/PlmjeoPNU0IB5yA/vT4H/0Jy/LPmX0//JvdNe2FZN vLXdVW70J3QU8Z/qKlg+b1ADZL7mCNG9QsOVNtDiXZdNYLj4VTUo2hTzaSOd+JJf OEUHUhTBzNhsIp9otP17Ue0iAW0jU9HLNYc7tAXUXkfYqMwZ4IcxCfP8l+7nYYTz 8yb+x6ifPab7KqrXiSealfFDo9+kwg== =dYBl -----END PGP SIGNATURE-----