-----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-jenkins_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-jenkins_15.0-1_amd64.tar.gz fb3e20a1dadb5d5b092fdd0ce596e862b8992a217df3e31aa2f00d52e851d9c2 debian-9-turnkey-jenkins_15.0-1_amd64.tar.gz $ sha512sum debian-9-turnkey-jenkins_15.0-1_amd64.tar.gz 959fc6ce4dee96712200dd756c9aa4e61e41066b055c3c1d7d091e8b9a7237a9a097861a8f66c98d7ced456b7395d4e4c39b957fe9064e12f983eb26547576d3 debian-9-turnkey-jenkins_15.0-1_amd64.tar.gz Note, you can compare hashes automatically:: $ sha256sum -c debian-9-turnkey-jenkins_15.0-1_amd64.tar.gz.hash debian-9-turnkey-jenkins_15.0-1_amd64.tar.gz: OK $ sha512sum -c debian-9-turnkey-jenkins_15.0-1_amd64.tar.gz.hash debian-9-turnkey-jenkins_15.0-1_amd64.tar.gz: OK -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEaUz/JnlaKbrge061hcJelaFuuU0FAluM+9UACgkQhcJelaFu uU3CNQf/ayY4pEj4qL1FsIZ3MJgP7hBCv4g7W9SjjMJ1vPzsWNOqn+P+X03qFnoV VTAsVxZUP2RbV7SVm1VbmDVO0Xkk3cy1GjWkJXb9tAPFfdUQSmPUVPgp2B8zL/lS 9w1TD6+HKmfZ5gU0JBkuyfNBN0MMCwDuy1c9b52iZt98EI/rUxD0hqKSSqTQd7Od iwSoePWl6NiKd9GUgBky/PZ9BOGmJ4iKbAjF2qD249rqz5xwvcGycjGENPiI+sHL 9yICu5xd5Y4IGVbc59xn5KhWRcm4p3joJJcXL3oL1eis7yV7izehnZiVNfuqevVT SMdns3n6k+4Ogh1ZDEKvlT7LJ/G8YA== =0M/X -----END PGP SIGNATURE-----