-----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-lxc-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-lxc-14.2-jessie-amd64.iso 90317b67fb21aafc23f284ba0555e070e97a6ccb8da41081937e4e125d137e91 turnkey-lxc-14.2-jessie-amd64.iso $ sha512sum turnkey-lxc-14.2-jessie-amd64.iso e6fa18139a76a6c740ddc1d765438385e877d4a2139d2fdb34e26710defc7bb5f2ac60163675aeafec729655c8da7b994d43d3e4acf3efad3b1c99e03d4cdf0a turnkey-lxc-14.2-jessie-amd64.iso Note, you can compare hashes automatically:: $ sha256sum -c turnkey-lxc-14.2-jessie-amd64.iso.hash turnkey-lxc-14.2-jessie-amd64.iso: OK $ sha512sum -c turnkey-lxc-14.2-jessie-amd64.iso.hash turnkey-lxc-14.2-jessie-amd64.iso: OK -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZeIKkAAoJEIXCXpWhbrlNQBUH/i9NlZO2wecZXER/p5SmL9dG 31VdP/qNohs4UfrD6s710Y2UjlUvsWPYkVEyMhgxd7tKLq3rPUnMtwKVsCOyqbxC cCew53BDXqVnHcqp399Ukt5a4YEIfCchSLD3P2OhUhS48XQYjfp8dPVlNSPfttI0 sTTSnDQdDqZgAy0Ic/5sGido9OQE8LwbDjMUliyC/1amC7K6yV3aKYLFg0ebu8db s7zHWEPtpJljTkb4Kd81WIsAl+4Kw3BJUgMg17cW44gvtF0IQsFDN+rdlqyOzqHk IQ6gm0vlFqjR47RkQGSdtybEL2I69vjU9lNcwQnrKWJxBDV3v8DxtEUCoDnY3Kw= =Of0a -----END PGP SIGNATURE-----