-----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-tomcat-apache_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-tomcat-apache_15.0-1_amd64.tar.gz b48f1c3f64f31579f031d287335b22c7d678cd239c2ede253e5f1ca608fef4cd debian-9-turnkey-tomcat-apache_15.0-1_amd64.tar.gz $ sha512sum debian-9-turnkey-tomcat-apache_15.0-1_amd64.tar.gz f6e582beb20b0b59167928461086ad95651d14e03bbdbe806f1ea68829bd5edbfc26390473a00305e1ee964e50669c46dd79b8224667c9950b2046ff0680e9c6 debian-9-turnkey-tomcat-apache_15.0-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-tomcat-apache_15.0-1_amd64.tar.gz.hash debian-9-turnkey-tomcat-apache_15.0-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-tomcat-apache_15.0-1_amd64.tar.gz.hash debian-9-turnkey-tomcat-apache_15.0-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAluM+9wACgkQhcJelaFu uU0bxAf+IUUCKblTUQNXA79aknwVLMCD5odYrJf/UC0yiLaM+grQzlU0hTecnrQe 4D1MYSOIbIEmai9+TY2+nA2E4+84Eeg3kSOjJ9kqgPUZn7SHwjt53yWEmQepw7AD JZdOZ2w43AfkG7eNcjwkj8VhzsGr42t+1h4TLYPO8oUnPEXvqoYHdot0Ar4UTJzF OYnjppSKvj7z3WMjqkeUygI25Y4mEmmGRwCtZlXwGaRMUnGRRuuuyMlfC9snwXwY AOl5LFrxzItj91XFr8UvJ3HlAE2lUrU5BbobPDLiI0xtOJOqd7rveHke70GIpDAZ rRhi9SCNLbQ+T0HRYtIscDosKAgSKw== =Pla7 -----END PGP SIGNATURE-----