-----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_15.3-1_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_15.3-1_amd64.tar.gz 0f9a77fb94ce8b732f8930537c49a5aad9597f1ab15595c05e00befe073b0ba4 debian-9-turnkey-drupal8_15.3-1_amd64.tar.gz $ sha512sum debian-9-turnkey-drupal8_15.3-1_amd64.tar.gz 1951e772bfba55acc6615544133533295ad1e25e61b94f2a3426c157f8170ba1a176bb79ea0905c88d9fbe704629cf8876e9413b63b8708be4781a16389db083 debian-9-turnkey-drupal8_15.3-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-drupal8_15.3-1_amd64.tar.gz.hash debian-9-turnkey-drupal8_15.3-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-drupal8_15.3-1_amd64.tar.gz.hash debian-9-turnkey-drupal8_15.3-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/pg0ACgkQhcJelaFu uU3Ougf+PcosZHv/uaEtDGPambJhJVqirYbyh6i1r+H5PMxAj8TPJ6D1DD/Nb0jJ /GIRSDelz+A16LYxx/sw85eUmnk5haanfWA2atNAMrZp3lwkYDHZlHAUo9WuVPE8 ZdPPpBFdiwAHY1i32nocrZ3FoNX5EfJrApI5yhyKxJVYsD9DvYnmupbQ8s38UGZx KZU2ZUh8g9JGJZ/IWR8ZdOi2mrP+FNf8H3jr17Ni9NejH1/su5maqyaQ61Y33hnh SQaXY/HfkJYXe074ebn1/pEF6+BlXgmWlkDkjx72u5pXvjBoH+P9faX84Qq9X+St qFbXKtMwGaDZl//NZ4/jqEbHNbgn/w== =QEf/ -----END PGP SIGNATURE-----