-----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-phpbb-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-phpbb-14.0-jessie-amd64-xen.tar.bz2 2b16c5605666bb639f2446644266d6fa $ sha1sum turnkey-phpbb-14.0-jessie-amd64-xen.tar.bz2 c96a44ca3f8ce9d6ff7716e45f89e9ef17f97cc6 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiCAAoJEIXCXpWhbrlNfDcIAOKC3HSaEa5O3ooBidCCNF62 4fbjlxes4J6MhLTDjV/jt9YJQeW3jeeBz0SsjCym/J4ECg21r3oaQH3wrbhpAuEO LyJplmPx2oPk5lsPwPBm8xfTiz0kWQud5SAvgRla6JIWmVeRMB7lEzRWBnn6yx6E 3SjxiBxv7jTVIDL8nDgiSJF7XxKT8v2IBwSUFgAhPg9cXykuBVcM1MJg/bQ7c4h5 Ds1SM9CjWpzF1vbB89DQwXTPKwd+6tZOol6larrkBDHvdAAKeziJcIjPydk5DkT9 bE18YtU5BXVMl3hI2nuIkEglnTTHRsnbpufNMwWqm72EDv2cBpTnOSDjHsB7nCM= =q9Fq -----END PGP SIGNATURE-----