-----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-redmine_14.1-1_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-redmine_14.1-1_amd64.ova 80662d5327aa01c2c264b15e203451c7 $ sha1sum debian-8-turnkey-redmine_14.1-1_amd64.ova 9ea961b14ada0a22231812f243db3fffe2b153c5 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnuAAoJEIXCXpWhbrlN1kUIAKUa53KQsrbemTPEVfcK3uUf soThxVNG97vFQ8sHc7z4/6VJ0aOKOzetmUaExFguwzyMZ7OFEfM8W9wip3zXoDLK QX+h2A4IDTsrFSxSjHHQQzK5RsA1oanaR3FNkDjQiYfTJ2CVADHP7G/o+LqbI9Eh rC/fF9WthPvhTrGzl+6OlIhmOgpVJ+ttABZ2lm7wWtWr82hqd4EUuKv2V6MPIDF/ Y/CUF46SgLP3NaamJMBxonSn0+8i8Ht1IF/pathzpki0rX3LmYX8Y6/XF0KmQQ19 TCruJaryDLhol1FN+FxM9vEV1+ZikP2kImbhvcJWLbaMyZOZ1EkwFvzmcxNc9MI= =h30m -----END PGP SIGNATURE-----