-----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-wordpress-14.1-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-wordpress-14.1-jessie-amd64-xen.tar.bz2 cc70a6a49cbbb5c15894f06c0f92e242 $ sha1sum turnkey-wordpress-14.1-jessie-amd64-xen.tar.bz2 4950135f9541467e88ef3d6f9bd6b762775d1779 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn8AAoJEIXCXpWhbrlNKq8H/00Gdfm9buwqbx4Ls4vGFVXE oZMazF7KX5dQiTAIhSI9R/B5CU2wjZYAz1f6xdYRPlDI3ySrAVJSUtwyXs2Ddtfx FTQmGQuznJCOFfjvkTOB59x3fKW5NEWRsh2zWqSxXLGDl9tmrpsu91XuyE8hw1Wy uXg4vRlFYQGyJ88IpJMSKtHYKC2nvn3TvT/2abTaDMQbBol46wV4a9LwmdGi3kmm 3gfN6f8OyjEssGJJ5nRKFVi3+amfWXWvUbAQxY+RgG2bIN6gj70PtgLBBx5top/W PaDwGrNY9a/vj6eJw04bgqltddMfg4ckT+k4ToysllFLrGuGG4CzTfPpDEdhQ6Y= =aR5R -----END PGP SIGNATURE-----