-----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-symfony-14.0-jessie-amd64-xen.tar.bz2.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-symfony-14.0-jessie-amd64-xen.tar.bz2 6797cb633293de04f3afa3913ab01429 $ sha1sum turnkey-symfony-14.0-jessie-amd64-xen.tar.bz2 5dbfdf5b762095f2fe044cb024864a59ed532825 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiCAAoJEIXCXpWhbrlNWyEIAIi5R0IFz/iPplakUo9fOumk 7KUDPV74vN6BPn5XjBlwGJRaAxSmdRhc1HUubBIuCfZhuoILVSEz+ToSCXjXHST1 fjLbVEcYcshiJ3odT8ah//CwOvlEJQ+saErCDBzK1G2eM3frFgndkwCYJ8NUoMyR I+ABN8ZGOmsUdZFgmAXln1l3c5dWbXJ1hgLa6TxerNbG74DBJA90k5/eDGhLqESj 1wSY6swgXwaBL8QHZlaEkDgK6J2ZS0ggM/kY04QHRwhcJb4zSptzphO8uydZq5Nj OynDcRA9fHQ/MwCYDOuFc+sJm+PGkd54yplqGxjpm73TSze5svmIXRBejL0aV8w= =cy56 -----END PGP SIGNATURE-----