-----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-bugzilla-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-bugzilla-14.0-jessie-amd64-xen.tar.bz2 99c3a71ab0691310471b926bfa254f15 $ sha1sum turnkey-bugzilla-14.0-jessie-amd64-xen.tar.bz2 a3a997107b6b7d2eb57b34d43d450ec2f1a9fb52 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiAAAoJEIXCXpWhbrlNJ2QIAK96Y5auHaOHwchQPWbwcnmw LFvw5XdFYWp1OVvLkXQYD1ftsN8Q87xdbjY5hxtb2RhWPiZCc6/poBPlyUz7Sq6P JXatcXDwYiuokC9KBOzjFxixQEPCKLo4GDeeaRBZYFgA6iADZi0yAYYprEBoP4JB g92dKcIabTkCh7GGTg/aQs9Tsd+sboyaRcrUBKRqlvNqTmIdUcNygXKt3P+Qg57i XwQUH+G6eI+9mYs3M1zLcSSRlUG4XVpnPpemK3vvokKKC13ub9IeaQGNR+2OjpFH OZtEBp3PlzeYoel0bzKg60XznS8lvxBxF16P6z0QoWvJcv/A8LNbwC6I2U2lOFo= =Mvrj -----END PGP SIGNATURE-----