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-lapp-13.0-wheezy-i386-ovf.zip.sig gpg: Signature made Tue Oct 15 16:19:36 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 4c18f3dcdde34795cddcf28a528fd68b2b7c7955 * md5sum 460ab177def237b23190f0b0b02d724d 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXWsOAAoJEIXCXpWhbrlNqKcH/18taXk6ERf60Pw1uPTZXR1O ivyWrm8uizehwM3PwRyCH0O40up1Nz6VB/U8FZxtpBc1g0JyJPSm4HClpjxNgpte oQYBhl4QtnlZD7ywEbc6NbjhT0O4QjEnT3jN4Y3wlpSbBN/6JbtLLttNtsJJ+2EA t0AwLj4LsZz5bNvxhdXJ0loS2JJhXHVtsc6qxkN/fwg2pxVRfp0YV7AhwxLYiARu 4JKq1K9UuwFw8lgE2G5uGxlfc8sP4b+FJtzVpD/UX5etJq3oS2doQF5k4m4JxMaU t1swUdtKCCLwkyghsr+TJybEjkHYN8if6p9t+Vvcj5wgug5d1uSShzHvWXiv6IU= =8FXJ -----END PGP SIGNATURE-----