-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Two steps are required to cryptographically verify image integrity. 1. By verifying the integrity of this signature file, you can be sure that the checksums included in this file are valid. $ gpg --keyserver hkp://pool.sks-keyservers.net --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify turnkey-twiki-14.1-jessie-amd64-xen.tar.bz2.sig gpg: Good signature from "Turnkey Linux Release Key" 2. By calculating the image checksum and validating the hashed value is the same as listed below, you can be sure the image was not corrupted in transit or tampered with. $ md5sum turnkey-twiki-14.1-jessie-amd64-xen.tar.bz2 17236328a2f861c0486eedd25f9b6acd $ sha1sum turnkey-twiki-14.1-jessie-amd64-xen.tar.bz2 5ec8ae9ddd5fb97d5889291e0db9e78a7cff07d6 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn8AAoJEIXCXpWhbrlNOZkH/id6X/QJo4G9dpmgkThO646L kdyTu7U3Jzk/uIzrxf9dcPmUnlKXMgw9Psj2LSJ0gISr1jp4EnVgu1CGJs9E67JT E2EljLd7N84tMnkHyiNQpf+4BGSbNUHUZ2mkBYohcKYLIKlRjnIUGVqnnTHN8y7w k1Bl6Oz2qOUZM3uCIgyqjWXMo4bZHluWvXDiOam0tVpj27TT3Ta7fvGDdl0uF5Sy 4ozKJk+qkq+OEYB7RlWpb+3mJPa100vD2QjPdQtcss5eWqodgIgAjKX4znq9sbE0 Z9dvKki5qz+BRNlBFuV9Ll8CvRnb2qGE36cZ3mG52VA9iXclKhVJTWGyWzq51AM= =eJk9 -----END PGP SIGNATURE-----