-----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-foodsoft-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-foodsoft-14.0-jessie-amd64-xen.tar.bz2 e344bc88f0bc1d36b60beef1a139193c $ sha1sum turnkey-foodsoft-14.0-jessie-amd64-xen.tar.bz2 342c5cf7d670b4beb53e342bc636db8c4f3b7e78 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJWMdiAAAoJEIXCXpWhbrlNsDUH+wfMigAo2oiLA95QpKzn/YXM 8G5NPkKq+RSzOfwWM0GJG+guXrlqXU5YktRaXOv8qxhC6xxXBuRSWqGFj6vR7Jog 8jf0atn50JaFvT0G3asgo88nKvYS40xn8Z1WhB+p5HFRGFWVos7Ms+CmdyEInVel 15/R9Yx75DOoqNi0oOAvmBh3kG6svFa2PaxFN2myFv+hH/mcKz+QcijktliMvk18 Cf3xK0EvXOih5Hw5lKJMdjkk0vpeJVSZPcboM6ldttp1aIQSPeXPfSEt2z8SfWfP EOOeleh7xoGyEND81E/1Og1dlD3KQ+hKD+Pr04BAe32dj8zFyzKJlQm1sVDZpF0= =kpXP -----END PGP SIGNATURE-----