-----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-core-14.1-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-core-14.1-jessie-amd64-openstack.tar.gz a395bb7bf2e05085940e46e7c6a7d5bd $ sha1sum turnkey-core-14.1-jessie-amd64-openstack.tar.gz c589c90237307a11454363338d6b690499231189 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJnxAAoJEIXCXpWhbrlNRIsIAOuOk0a36KKmXbEpNRLCLXnu NXQZrVSG6dl9lh3c3yfhY+5bkH8z63ZTdPSrgdOq1W54sUkZjmbQ9LQPwYnbUETz MHOdrahIvjfyWM1Sd3IX/0NP02NOqCAMAe2exWnbnjKhezLHOqQ7VXJdkHQzKGav kz9slZib02eZQj53e3z51ZhYZyzhUHeKTUDGr3R0PocvvT1rgjJD3vrnnb4OOJf8 YV03q380f+JHyMsrYjyCE5s3Q9TqK486fIKhgSWew1TG5lsVMygd5CpwVoPxp+r1 wEHL87fjyfOm7xuU8Ny/7sqO7gRmVGiFjQWPgARlTjzSy7W72q3yTX/6iBnAO8Q= =djca -----END PGP SIGNATURE-----