-----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-gitlab-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-gitlab-14.0-jessie-amd64-xen.tar.bz2 f73fa58e06a225a79d0ac43de2de4144 $ sha1sum turnkey-gitlab-14.0-jessie-amd64-xen.tar.bz2 ff6596bc54ca1f2d9c3cc521885b4ec9a256effc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiBAAoJEIXCXpWhbrlN5+4IAJCqCMUP+q9R9pRRSIMy5O34 VYG05VGHdOYgq4kg9aFHRvlquqhHG1EJxt+9iFLB0uOlpxRAJw77Cl4p1PvEZK9H bvQVKAYQoE2Cs/1HvMH35nzDfTr1gpO+9GW3O+hhZhNCAXHB2zXS2yhA1xAPd58j UVc7uEZ30tN36PeQVYzMCO2h93aY8U5FNjipTFX5dBYA1St49QPKRGQZIxSmJ6U/ A9kKCbWEbCrPATC0RgX9mQZtpC/bGtnqdu34IN2rLFf+7R0rjvOAdI3bocY9mp8m CPEMKumKFOW8bC4sFq5hDVsWtLFqWGCTpqHX9B1IQ5S/npkYSCq16lsW8X+Odgw= =cqEV -----END PGP SIGNATURE-----