-----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-canvas-14.1-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-canvas-14.1-jessie-amd64.ova a12ce6b9eef9a6a9bdb7b9733a0c8b10 $ sha1sum turnkey-canvas-14.1-jessie-amd64.ova 6543b4ada2cc40c05c42a0d3003303c557c5a60f -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXRb5nAAoJEIXCXpWhbrlNt8AH/jbPYp5s6weyP+fo416gQBV3 SWB2W53rLgi2yMv7+hEaIVOKlS+Dl3fqey3+J5EqmnerQ/JUKKIZLrjOyohw1A2o W3tGgaIA3wHiRZ3e6YxHC6MO+Z7FWcmRne/TZenXPbgXAAWVqeB2Qy3z3gMPfLPs pAyxH4B9Ks+T1bVDYl4iT4WLIFocA3MeuC9LlpjQHI+vrI1xHR/gfWK5eu7Yv6VJ 6lTqbw72K/fLAfsGJYq02G2pDivl3ZOgzzh2q0Gsv8ayNm5O5V6SmcJfE/InU9GS FQg6kZQxshfOFydOde4zv1FGdUHxxl9nx3rr3PXrwb+XBew1HfzcZJQWEBOTaHs= =wxkz -----END PGP SIGNATURE-----