-----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-zurmo-14.1-jessie-amd64-vmdk.zip.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-zurmo-14.1-jessie-amd64-vmdk.zip 9f053d4ec89141de99cd53d622cae861 $ sha1sum turnkey-zurmo-14.1-jessie-amd64-vmdk.zip c8bf335104a34c883f0e8f7ff3015d6d8007e033 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn9AAoJEIXCXpWhbrlNcEsIALb8VGFL2FU9aRPV6z3+xUVY /A1Cpn9Zb5hboMRAXBO3lVF/sIsx0nxcoBK0Cr4FEx7OQq+1iOYKcAxkDJ0iLUgR CfPV6hFTN8iy82HoWM2RBYyiDFuE8RtUF7P3wM/EK8tZO4+FXQXQxfUHQBBAMgvk fSac2y37RaPFfJ7q0lJ2Ol/RjvbaHrShVXpD8rOLH06SBWslDdd/J4JXw5dG5HwF r/Hy1ijgSyTSbUxD+vR+fbiNk+S0WW59jWcUFGfPh943uS8KFn6F4fSGCN4gZ845 6KvsfsomBVhUuU58b1OpQc5srdVKdL2TZqqXKmhTsDJTdV2Bh2o/oJllUBZtq14= =kq7K -----END PGP SIGNATURE-----