-----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-tkldev-14.1-jessie-amd64-vmdk.zip.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-tkldev-14.1-jessie-amd64-vmdk.zip cf3cfb226e62cf4d5823800bcd6d9c71 $ sha1sum turnkey-tkldev-14.1-jessie-amd64-vmdk.zip c7ab3794e8dbe7ab2d21f221f86b0eaccb348e54 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJXDJn7AAoJEIXCXpWhbrlN0OoH/3qrCsZrgsOrTCHqnEDaz/ss YRbJ/AK7TAgbNh4S84Sj3EZOfjaxOOmgGnsRQOIP0XvZQyygJX/2T7xYTnnu9Xz6 qPnVEyCZ75ya77mBThxzGl4h154sCTIwji871MBjuojs+otXvddNjFA4X4BB3or/ rQFkjioboJbzLHSfySD+zpQZrfbp6tPSMXhwjdZUjQjom0sFs9BOHyPJQrVZNzkw f7TcMwB/qdmR6FGcqdShzNGwSVQHPjWk91+mbGVviYgLkP8ucVyryhi16ye0SLWR I2vB1PD0JkNRVsA80IbujkGZLexHrAd7wTmHjmTPjwT/STIkSgRCSlMK7nsX2vg= =dNw+ -----END PGP SIGNATURE-----