-----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-lighttpd-php-fastcgi-14.1-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-lighttpd-php-fastcgi-14.1-jessie-amd64-vmdk.zip fc0ea57d39836b8523c5117a4b4b4d07 $ sha1sum turnkey-lighttpd-php-fastcgi-14.1-jessie-amd64-vmdk.zip 8770b931163865addb447833f1a40b074a000286 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn0AAoJEIXCXpWhbrlNnNwIAMsTp/lUcpykxQzgK8VAR4pA EjDEJbP950B9QsTHV8W+nbQw4Ixfohah5HBN16IbMZ/62ne10G7jEq9vvTFAHqPx hBLiirgoqpvKxd6/NRWDFcIFDkHKPQM7eTOVa/wM1QJOiQxnTttia0YO5WUavsPh AVWM4ctCb2QCl+Sp20YTYpKwF1lZ4hDj/b66fmoKCwMuxE/nxgtKzSjYvIS42Icg CUei8vlBBQ3thwgOsbhd+DMSx0BRBvzPHkcm2LS7RuH9EA8wE2VJev1dit8foRj3 HgCB0XJS3NFA0w3VrR3OVNmvPEMQr2xiQ7fG7oqct2cAZTakPsQJmtAv4SvdUOk= =T7m0 -----END PGP SIGNATURE-----