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-xoops-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 12:42:23 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 57b7c47a578e171202cb215f038307733a3eaf8e * md5sum bc7c9b03b73bb7f3db65d61bf4649269 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) iQEcBAABAgAGBQJQM4IiAAoJEIXCXpWhbrlNS6EIAKjvNXViLjacyu1oC37FnOEz UdwcRORihJGft79+0x3Hwz4TfylI2JLF2cercC2rR956oF/LXzvEzN68n+jhbAjl JUIYjencTfDlxXCA/JHwiSurX7NPjSNk1SU0CIQ+0zanZ06o0NlsEpJ2pqBiBAK0 Pj4O/NCL55UyP+EEgJj06gR45K+DIDUCmfh9Z4dAgfzL0ZvbGgKVFqSpwaz5an7N B3ksUlWNv5CiaiR5sJflKYiDdg7cVqaephRnRs5wAtpiJsJsI3+3bNy4nDUkvdY5 1cQr2qYVKBMBrgmWD0OiNOs3xNfZ3FAdUUypANbSTlg3OdxEAbRq85l6x0PHe7Y= =yOpp -----END PGP SIGNATURE-----