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-mibew-13.0-wheezy-i386-ovf.zip.sig gpg: Signature made Tue Oct 15 16:57:19 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 24a88b2a87ce52dc5959e071783a4d8bc3e0b814 * md5sum 986ab2debee17d53cde85796cec44a16 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) iQEcBAABAgAGBQJSXXPkAAoJEIXCXpWhbrlNj3IIAIXCr7IHAao+Btam9ueUUImj fHarE7+ARktMh7Jr4DpDUG0xQ8fBvE8hTGG+QNJT1qiH6ZPSqD9HKGKzJ4Rk7wfh SAkKVvq/5MCe50DwYtJ97GXALkJ7wj5nTS6zlPq0hKLDtrd2PiD61mQjgLRpYqlR irqiA6XNCf4LKphnrF5s9hfVlttdtzHiSrBwcj5TkwVxhf2Tpr+Tz55XQetRgSzs zExPW2v0tI9LrFicTsNGU93i4uoeFpT0pZOVy5aUff2y4ErVonXM8cnGPwvH2p6W P2R+pjS12Csnndga02yRXA4DnNumViqJBhcIyYAmvyu/nTfT5NF7fJstgGlicPs= =9axy -----END PGP SIGNATURE-----