-----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_15.1-1_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_15.1-1_amd64.tar.gz 8b045b81fab0b03fb59eb3834fe98f9070ea6d91adc9e4979e4342646551d384 debian-9-turnkey-tomcat_15.1-1_amd64.tar.gz $ sha512sum debian-9-turnkey-tomcat_15.1-1_amd64.tar.gz f5f460adc73146f88981f9f6a71cd335498024d49dd000c253c2ff19d51ba37148cbc95057b4f487573a908772aab37b717e0624b5ea26cfbdd525e8eabb4836 debian-9-turnkey-tomcat_15.1-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-tomcat_15.1-1_amd64.tar.gz.hash debian-9-turnkey-tomcat_15.1-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-tomcat_15.1-1_amd64.tar.gz.hash debian-9-turnkey-tomcat_15.1-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAlv/phMACgkQhcJelaFu uU1YhggAuixRKxAr4QtQHMBjIDPyZ81tbvO2V5/yVMzWqeF0jfu5WBM7KFuopEyK aJ8mAZ6EZQcML2O7JUBiKFNYItDGERbkbF0L68yuK79wgb6dtmnZAx5/NaVID5KI Bfqh75J5LyNHROVnJQNFxKfewcJK+HlaaeqiH5iugqfBn59DVcTpxDwLA2vtQ9uO I0gvLSN5naU3uLTT8+SbHX9FpmuKDsbjVfNNczHEXzaxeedOttH0XYHb3KuxzfLu 4iYeKHtcVuAp7cJnqTuZAPcUtcO4NCXcOZ5Z1yhplSZQUxaxBoLoGyXPZzhcTuPW BvfWVNKe35E3SeH8eLmeX0doKUGE7w== =9xip -----END PGP SIGNATURE-----