-----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-postgresql_14.0-1_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-postgresql_14.0-1_amd64.ova 2ca7cdadac28088970c44cfb47c3b159 $ sha1sum debian-8-turnkey-postgresql_14.0-1_amd64.ova 9e22d3ef29c8741f81f1f72ca24e52214cfe3236 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxVAAoJEIXCXpWhbrlNq7gIAOFkv64ZUYhp5R1j82jJX+kh Ysp3gc1Q7DLKaDem6JVxTcKQAEi9NgAun/oQcFqxuWagZSUYvI93Tz+Z0y/bJ8G8 0fpHrI9R8xneFZ4+fnXWMsiG06ywoTGFy3c/Bu7lg9wqPyobegCiz/JcUi15u4Ya C2g/BzsT0huGf5DU9QI51Xp5TRLs0ih2NI1TSfGHZ0wr0aRUDgPVI4HfBtpyTaJe 7Xvwz2xlFFB2Mve+Je9GYlPkOoExN/aUESchUx/IHyIgV39b8tbs6lrnxe3FuGf4 bmkwGrz/dQwBrnNTSIq3siIL5q2yu67sCaFnMeRy54Fof6CqY4bRe/DNz0jIs/M= =qheU -----END PGP SIGNATURE-----