-----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-piwik-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-piwik-14.0-jessie-amd64.ova fb5d5e93570a5e17baaa87882b8b6f36 $ sha1sum turnkey-piwik-14.0-jessie-amd64.ova 5bad54987c51781a54db42007aef339859407cff -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdYAAoJEIXCXpWhbrlNeLgIAOa0975loh8jHZau0rqVeqMq 1Ig35C3KrZ/4RDl1ZsfVt2gR6K/zF09ZNYoY22RbrWDuW5gf8ROW2GD6CeZHr6ne Yq3mca/P8iTjiDZW11YDdcmMNMY3B/4ou7O45aJENi4D/rXjMiTadUYVW2NpXDw1 16ZbLZtgxzJwzy/XHrx848whNhR8cAooaSooWCbBmMqy7HLinHQDSneY8PQjJ6gY abpkL9RcHz+7WccDNOGFLAsokeqnVbIYOu1Dz9BuTtB891hGZzUdEUe0YlZLuqY5 PhF6Isp1JNCxyd3PRoYB01AxtLt70N+FHTxUN5Lm5sCIT1y21PcvFSrav6rrelY= =hwW5 -----END PGP SIGNATURE-----