-----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-revision-control-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-revision-control-14.1-jessie-amd64-xen.tar.bz2 81c879e3f1b995ffee88943e666ba844 $ sha1sum turnkey-revision-control-14.1-jessie-amd64-xen.tar.bz2 d89768f6b5413885715cba809ec1a4de192a58ca -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn5AAoJEIXCXpWhbrlNN6kIAOu9mBLG7HO1Vc9UstKXrMUa IvE6ogAMQjvqv2blNrBb04VuxH/vQygdLkudesN66Veac9sZb1neku9YnEtnKl7+ IXwovt0YaldeIzkupjv9e535JeiNFH39PsX3+PQoxMGQNFDPLZ+ORLb0SzHKabf7 aUdCoeH3nLSisdLGqvPyPgzyMmWoMoCKBB8sav1Y04yDfliJzcHP4/RYr70vVuAx QuTAJIm6Ga1bzKEDTLa+CAWQS9xJIzdNhrA+B9Fis6lHK4Gfhpa1Y6z0xhSy8Bkw ya9xmLrGwDtXgFOO0PjxVDwlE76+5Xi61e4mBHF4l2RcVaOeIsbBNz8s13ADTUA= =cPyt -----END PGP SIGNATURE-----