-----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-rails-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-rails-14.1-jessie-amd64-vmdk.zip 3aec28c2c16924bec6f06e98f2ef469c $ sha1sum turnkey-rails-14.1-jessie-amd64-vmdk.zip f8884b0597ad7b2b2cff0b938aacbce1bff58837 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn5AAoJEIXCXpWhbrlNWIwH/jnA+Lqm/DZ1vXRY2ANyCOKq V0I7sDSDqyzT5JctKkrp1rjwuEJCh7gmh3USDVUJL+zVKwacpYZObHzXmZR6Bkky OIUGXRewzyGMq5tlQYiQihlswaQkqHw7rjV45+Jvz9T6UgOqBpjoKGoviyZy6VV+ L6gq+tMY70puXy6MK9D5awDWaAmBJGp1Gg5F3+t/ap627fie+YiOHAtGJXBWAah1 0xAo1MvZZ8kpYgNqI5B5i5HuRnusejjxF+cN6RjtU4c9BxR1dLMziLAYbbk2ntXB I4fZdJ+Yhom/oeeHOOQDzY7bkBOIAPYhQT7Sl0b/ZWK5k9TEs5TKYJM05PSxj2Y= =EGbn -----END PGP SIGNATURE-----