-----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-mantis-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-mantis-14.1-jessie-amd64-openstack.tar.gz 44374ad47065c36df345295be7013898 $ sha1sum turnkey-mantis-14.1-jessie-amd64-openstack.tar.gz 553441581e6dae62bb54aedb3bcde5a3ca05ee52 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn1AAoJEIXCXpWhbrlNOS4H/0SNKVVwXMJaXqJIuTyCYz6S 57XtVDScpTvk+W7xmCFlVH6PWqX8mB0kl+b8nfSf9N2GdHaOv6LEMls8XtCsnP4j sV4BuANzhplsYZ++XiYa7JUsTukKaZWXpo5RJwvGpP63nrOFDgWq0QCsLHoG/r77 boIOPqm8QELtGbAQw1fbDi+rEAD1kDg8xJlXkkmNb7MFeSHhXR8Qcw+FYIRPXxVs 1o339gCr8UYMt9G37150Ipw1eWgRStzxTpzDgJbpRrC/OLbiBlPwPlp4PtifnO2O lHuad9hxc+vnqwVJ5JQmMWz7auvidSc31UDwrKH3MjT7fO1T0StWxEoKuCEcook= =1iwF -----END PGP SIGNATURE-----