-----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-lighttpd-php-fastcgi_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-lighttpd-php-fastcgi_14.0-1_amd64.ova 5c9bb68d20e1a5d2783f25ac0a7fe3d2 $ sha1sum debian-8-turnkey-lighttpd-php-fastcgi_14.0-1_amd64.ova 06cc824c3403f671bd281e0473b08e1736dc8586 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWObxTAAoJEIXCXpWhbrlNt/kH+wVhwWocXUVT49pDTF5h9RLX +7nEJgt5OQ35MwpdUYFLSCCAKbWGUb63S3LbU5NyhLIutNXpww94uUElpp+zDSM0 df1o8SDWHlABWw9Q5/1eWmd6LiLBVY6hrFhgLVjDN6E2RJcGPK46PHVEsm6odrLL GMDTNk28zepap+DQXumiTaI84Q/r9tMZSFxaY3qQCmQfZR42wCWbpmQk9MkH5B4P Y0MBxrTYT1WyG7NxaoDNd3kCPSBrfT10SuWEbNJn2veNqFY7PN8GETLPqjWkVDhc PJK/ynNk/BQOtShOZwSPlau42Zf59RKpASzwbpptyf3HEjd/zcre/I+cgjIvoR8= =mAyt -----END PGP SIGNATURE-----