-----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-symfony_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-symfony_15.0-1_amd64.tar.gz 253f8dd9e214b5a99d223c901ea11e8bbe02ecc532b40661e6632a9f85f225fd debian-9-turnkey-symfony_15.0-1_amd64.tar.gz $ sha512sum debian-9-turnkey-symfony_15.0-1_amd64.tar.gz 6608ca53d415e1b70b9f343fa456632cf91756124e7efb05200a2fc4474c904ee00e736fe7b49c682660222dcbb68aab7e31c4fd42663304afba72f5621ea714 debian-9-turnkey-symfony_15.0-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-symfony_15.0-1_amd64.tar.gz.hash debian-9-turnkey-symfony_15.0-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-symfony_15.0-1_amd64.tar.gz.hash debian-9-turnkey-symfony_15.0-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAluM+9sACgkQhcJelaFu uU0r/Af+JmqspSQM/DggwZw0avP+XOrCp5fyb1+IEGZpWC5c6tfTJ/7F6TZDapLw oQGWp8AB2/K4vFUW5mHVxCJ2ODYnleU83t/FiO0l3fQGapFIzSOJEZ4ehg1uQYCo pR3txf7uCaR81KxCXijaMHR8OVeL7sQoCFUHknJ4g3ImEjzAck1bSOcpG22JWq9T RBRYTqnZW/uQ4CkJGUQBUlva2LfyEJy9ZIVIVwdyhqqtJxvvPe5Q2Qy+IXGIaLZL iuqawPNzAuJilGWiw9b6qaD5hFzWUoTbG0eiTeCQYXl1zJyFmiFBv9LED+S0XAdn YhxQHLi7XA14dSJKdUURB8dxF3tftA== =g1kF -----END PGP SIGNATURE-----