-----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-openvpn-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-openvpn-14.1-jessie-amd64-xen.tar.bz2 b0a5115b7a15a45eecc1880924d6e9f3 $ sha1sum turnkey-openvpn-14.1-jessie-amd64-xen.tar.bz2 c2948707b68cad02e7c7654ce2cc9d792db466a8 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn3AAoJEIXCXpWhbrlNINIH/311dBVwZwt4+7elwt5Ja256 UGBeJ2GrfaiLupZSz0PgLMP9mfkQc0yNwL4O6BNOQKBrgVcs0zLsWsPkkjzs9klX iYFlaMZieUOyE8uzarf05Xtvzp8+mSp/r3NSU3HFIu8nGE6RMdn68UQ3nFPqylgC 2EHz+7SSdq/K3UPOQ90ES0dZVVo2gvGReS9+/xKpBUZi73kgWu6WmYxavaYyzFwC 9jGE+Bzv6Vz/w/iL0LWU49HeXdinpij2WNRt+nqYalSOAxvnfWw7XLnV4VQ53YON UGgzxozu7ivGuM4EH5Ygm4SfBu44CQpLbDR0fxxYiFSxgjYEMEItGFzgXzOZeT4= =v2p4 -----END PGP SIGNATURE-----