-----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 debian-8-turnkey-xoops_14.1-1_amd64.ova.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 debian-8-turnkey-xoops_14.1-1_amd64.ova 71a9dd915da81e05eb790f4c703e75f7 $ sha1sum debian-8-turnkey-xoops_14.1-1_amd64.ova ade52bcc2aa1107df59b624a3d68c63e0b1614cd -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnvAAoJEIXCXpWhbrlNZ8EIAJF8h06stZOU6rpRhn0odPwr dzHocadalwQE7NJ7EraAaP+167oIVEKCm8fZWw0PYl3v/3XvtNV2zzzLrNVp8gEX nIYO+ZykHmsC3d695FzoTHzU4zBXp4V9GEl0ubiEq+x1p352H0uO7qMecC4vaifT c353+s+LPYjlBICwItK7P3zJTGgKpOvOdoUZd5ggDzmu4owDlUTUxbo4aEH25zv6 WKxUMbCKfYO8ERl+/CMYePnbkIIkGncckXAGt1ZBQYCReiUTerqohZ8RPqIVhI9E J4p0+StPa8h0crz9idODTr9zEk+m34+JGbS8uxe0JjTyPB8GrQLtNbNqaAjgHBo= =fv1n -----END PGP SIGNATURE-----