This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --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-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 11:47:12 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 4b317195829f1be9ef9beef631203caddc20f587 * md5sum 87124a502201d4ce8a9263d8251394a7 You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJQM3UsAAoJEIXCXpWhbrlNU6MH/i1njzBzxijMNIsN4RqFqaFJ XHiBbX4iHqcyCfAp5kETnDfAlUU5yF7HjTAk7nENrazg1kdXOAEgyXQf25KCXFXA o2nooTu6clKGT8cLeGuUEN3uPGU+AAfh+rtL2irF/HfMAePR8LaNeJMhHtDppcSJ QSxCpZJMJcb3tGgwsMLG17DyvvTSlOFZ897viVV2fqJtKiYEk0uQdogUISc+bmOk RbjxD9/5lq4dJC2RfYsb5GGGajr6wb6w2Cdckr6g1CIYOYUCz3qZck/CtSBbl6gT 99wBdnCL28A7334whTuJRl72HpSEWO6MtueFrO3dG+ek4c+rS+MPp2lH1FOvMv8= =yUHg -----END PGP SIGNATURE-----