-----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 turnkey-tomcat-14.2-jessie-amd64.iso.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 turnkey-tomcat-14.2-jessie-amd64.iso 6f6360d1000841e7073ed9c46b7be1ae91d6cc3890f2d06178ceb343e283482c turnkey-tomcat-14.2-jessie-amd64.iso $ sha512sum turnkey-tomcat-14.2-jessie-amd64.iso ad2d5f2bb39d4c21511c345a8ec458aab116350018bde565f61a30631f657652e6de78786d40f588070f3dd23fd63bc029ecefd0cdbba823d17320767fdf2a9a turnkey-tomcat-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-tomcat-14.2-jessie-amd64.iso.hash turnkey-tomcat-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-tomcat-14.2-jessie-amd64.iso.hash turnkey-tomcat-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZAJDqAAoJEIXCXpWhbrlNpM4IAIwr4EVmgQbDi+JX7uE5hWku ajQLqrMz4jeVeLRTbcyZWma56KMkHQ+YuhA/cCpmMuaGPoAybkNAiy2qBJp5C/eg pQ/xrJ65x8HT2vTwevxsHd0cYH/UV+A8Sg6/J1wCA3NNkC8FtpOBkJO8uBu5mq7y 9rse1gOvKtGPmueaWlDBIoalomR3UfHk8mAr8VdK/OlpESEv4E1bpqK14WggUxXn 6iYhpv9OxVEEMKlEGHY+DcEmqaFFEENeES2SANpoOy1Qd5uMu/OFC6nj/f+CqZid KJEO2XkR63CWCnYq6gfas+IhaKozIGEm9N2vxNEIQcl1+KOKt5tOt5HTbzSfWrE= =Igky -----END PGP SIGNATURE-----