-----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-tracks-14.0-jessie-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 turnkey-tracks-14.0-jessie-amd64.ova 6b1d638e0b419e633348b0e221de5690 $ sha1sum turnkey-tracks-14.0-jessie-amd64.ova 7354dd581cb506b8e2af1d67ddfd16927bdca89e -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdaAAoJEIXCXpWhbrlNuX8H/3auhkQXTquM8ZI/iAAkhPdN zKHza01mEDZV54hfEAgJyN477EOR5LqrB4lOQuZoeNLd6+vHlN33YzDP2w7VQedt yuiyjmXHvo/ly0WcmK4xyS9zlYmzI5Pk5DDrM8IccVKB1wkY5eNb7VHv0K5vh51Q Cd6QQteh7+l00Pj7YqppeBNtq6MficAgYygzO+03QttX5ehTKN/GXhaKakGKKgtt io9yrZrL8q/jendcL5JcrNDOSjghOmmuNmUHHiIPPQyspSt7gYHgHhfVllnnXsDt w0ZchpCLIslwPrHoSC8/5hTwPQ5pQxOkeg1uqDvZO/gz5YTzLC9Hjt3vaap0crc= =xixU -----END PGP SIGNATURE-----