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-statusnet-12.1-squeeze-amd64-ovf.zip.sig gpg: Signature made Tue Jun 4 16:09:48 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 1c8df0765f43b2f3291fdfcf9b436216b6318afe * md5sum 1ca4bf2c4e5504bd9bd60200711c1466 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) iQEcBAABAgAGBQJRrhFDAAoJEIXCXpWhbrlNU/cIAN5lTmrwABsS/sZFEctDh8wD cZxoIyAFpVVTJUpicmZfUUh+bk5KdtbS4dV3QXnlXDq03aXi65desc541WGpTT/D Qimmeheqny0lZBdY3V/yFTjz93bcKwuWx3zJlGyQliOoE8UcYOCylC7iI5utiOKG /dXOaxIwTpcGudrOsOXmgYKe45u6NklYZEHQbf9XiQxRLFnw3xrctKhEvOseWx9E yiFho2YuQqEAct2SXnIOaAAVAndzr5LJk76I3LgjLTMBDG7oPPDtO9m1WdbbKTq2 UieJOyeg4hYa2ZGNH6Y0dfxlJrHA2J4rBmyRWYsgNTzwQvzOJ81T4vTdv5V2xZU= =71+Z -----END PGP SIGNATURE-----