-----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-foodsoft-14.1-jessie-amd64.iso.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-foodsoft-14.1-jessie-amd64.iso fde04032fa6e19bd887b2b99f0b348c5 $ sha1sum turnkey-foodsoft-14.1-jessie-amd64.iso 0024be8952b4397171baba97b8db6306c5ff2b7e -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXCkPxAAoJEIXCXpWhbrlNEjoIAKvZItGReeXz3uZFjaiIwA0V FFhXpM2YR8nMPFnX0WW3kEfDQ32Ywb3PIPlELoeSs23PFQB5IOSteCcaXjNMgYak XHK7G+/X5cUHkPdiQZ7twYo7hRWjYIVUXAUUiczpZHhKkIALI8+ywmgMj8Rhddja eFQ4fPuT5K4AJqvE5LK/Eg6ytSNIXqKNeHh7itYYDOY2xlLYyw1s/vjhUHSlsn/6 5am0qHC+jN3s/+2nxi3YfkPVm8WyWYvXiIkirN/NzkIeJFKSEXLBrnBJ2qSkHYoG tC4AR5mimePPpie66PX63jJ0LF58qFr7ChPolcz0W/y9CguaFz8YL78hEHAkzs8= =q+ld -----END PGP SIGNATURE-----