-----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-ghost_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-ghost_14.1-1_amd64.ova a73d7c41dadcdf8fd0f4abfd9c64fd9f $ sha1sum debian-8-turnkey-ghost_14.1-1_amd64.ova 2e698dbf597cc6e377cc87da1b1e041db82e46c0 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXRb5mAAoJEIXCXpWhbrlNdMMIAIf2ZL2edL0jLpgCjMD/czE9 882+grlxd+LU6Yl5FgTtp4D8vCFaOVSG5KHA/+dYrQc/ozrfZoJkU8rDpNBX0zO4 G8O/7JCVhYdElyCkdhu+DyBp6eO5azi1yFR3JH8tUYTtPDUAVxW14mb6ZiNY0ozk hp4eXxCLZvUl2JCdpNsJKAX5Bhl+b3oxsJlsgc4Fw3r0u0UXYrLxGo5QWrwcCXMw p+gRlpE70hr7mI0/jOYORic6RyhAT1CfflrCWiWaIeEPuvatK2sBGpSAZTXdqZNA U+mqab36AK2qpACBgViREPtrDW2cAWF/8IBBLM2wmbmbz3UEMxAufF9rRnFlziU= =28Ko -----END PGP SIGNATURE-----