-----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-trac-14.0-jessie-amd64-openstack.tar.gz.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-trac-14.0-jessie-amd64-openstack.tar.gz daf1a679a127572a3a5af46f752a232f $ sha1sum turnkey-trac-14.0-jessie-amd64-openstack.tar.gz fefd8f3f46b48dc259c9df10fb66a5cd4088232d -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWXYG/AAoJEIXCXpWhbrlNXt4H/16addjUE6V1v+XgiUJ7uOlj 0t/AAWyTlVizfn/H5UmTu69NSUcWCTbGjWuuwhQX4jpOXDJmRIPEUjM95HzHlMvs 8n52cbtvcfN4nQ6kKnM9ZNdivO6IOOGujaxR+gkGTIe9T5x8yA6CwlM91+FsHZDF gvDrgi5EWK9gnmRYTljx4tjEgzdEv6vmoquE4mGSx+bjcaROb3PYpotqu2JqIHRd xGF5YwPeh5W42B5fftnUhJeuTSBGqFJmv1hBKVPwSPkTDP7r0+Ov/uQzkXJHjL92 3veJU2f1l6sy3LJDeGKXFYpsuxuJsgcujOKZ3yG8xWwW938M3bFncWZ4MF70SkY= =bgzk -----END PGP SIGNATURE-----