-----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-drupal8_15.4-1_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-drupal8_15.4-1_amd64.tar.gz 122dbb564b5dcfeda95e8a41ba8e6765b1d33f814caf83deedef8f05e399786a debian-9-turnkey-drupal8_15.4-1_amd64.tar.gz $ sha512sum debian-9-turnkey-drupal8_15.4-1_amd64.tar.gz 01cf34da43e5ddf3c761ad188701e8d734b5c36644714fa9c4e3b2f4d4a03891f070f4927b47409fcc5f82941ba552183e774735ee0c115a9c6642329cb09c76 debian-9-turnkey-drupal8_15.4-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-drupal8_15.4-1_amd64.tar.gz.hash debian-9-turnkey-drupal8_15.4-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-drupal8_15.4-1_amd64.tar.gz.hash debian-9-turnkey-drupal8_15.4-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlxhNvkACgkQhcJelaFu uU181QgAmGHSm/GSJc1skLHTWZp5Yjg+QZCveXq0uzudB6W4kV/3hzcLrboPcqx/ n9WIkrjxWKGucEnHgbUqJJGnAtPOEO9tMt77iUssU8Qlpkz6fRQIRapddpb5EIdL ni20pQty2WU0YV8yujEMvPX1UOlNLssIFzaBErZYiD9oOj4u96nrjOD4kspjzl06 Nuj1T7r0uVKubKzJr4eHFArr2BJmp4Am+czC8+3EGfyADtBQmVJWWlmJj75LKWxG uOwUKcF/cp/jNawODwOC4RetVOx5c4NQGT2awBgOL3/gA0Pqji8zW4pvr+vq7vkj voVLc/sGFI36xcG7bdL4qVijVBWjvg== =uJR9 -----END PGP SIGNATURE-----