-----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-nginx-php-fastcgi-14.0-jessie-amd64-vmdk.zip.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-nginx-php-fastcgi-14.0-jessie-amd64-vmdk.zip 81bc787a2c438130eb232262930dc362 $ sha1sum turnkey-nginx-php-fastcgi-14.0-jessie-amd64-vmdk.zip 77d1c0e41ae3e01997270b3ea632d8ca1f127750 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMJdXAAoJEIXCXpWhbrlNpEgH/jMycOCOTYMIKzPeqA3D3TM+ qLRU1JfUNJFyZrsOJgeXHrYaeQHe47sWUoNpnzZ2o+D7duwAu+U38tKwHxIazAJi KrIw1uhN+lfOLBo2TZYx5JrwKzvb98I5yIZ3cHt1BZ6hj1Qz9VIEibDhlAjhEXKV NUy1K3LGGrvVkz+lCzsnXpF5jxINP5lxqiZk/nZEbGVVvJWf9THf2ANI+76rd/cS ImTwB8g6F8i7tt3ZAXaKHhMHfg4fnJdLdJW0568a0vyfvR18HXWKlYTWAItz7Ej+ uJxR/KQWO3hfOxNNYSf3fBR37MJ8Rrth1rn7H6tTfEW2Wh6AqEkRyrKceXKQEz0= =+EUg -----END PGP SIGNATURE-----