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-torrentserver-12.0-squeeze-x86-ovf.zip.sig gpg: Signature made Tue Aug 21 12:39:13 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 13eaae4c0bbaa3ced6f0ef29a8bcf93a1b362823 * md5sum 9d725c6edf0493a30ae9c45b700f9152 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) iQEcBAABAgAGBQJQM4FhAAoJEIXCXpWhbrlNl08H/RlDgpAtWsJ88/nXnbKVIV+z LVZD18c9JjXGNAH3uXsarDJ2QiL7X/Lmow1csuCUU8KGo3yg1XBSQY15KE8JDl0+ dy1Hy656X1Ch5xxGCkoorg5EKVMTPniH4KPZ73q08Qu/2syNdzjb+jKSNgrCwObi Dgx3O4ykBjBfZvg7crnLEtrL19f9tUgE/cA4Abc18dPnej+GEq9YULu89bL4KdBS jiH9BHuUVtnbqK/qBs11QJukD77chQ5ubFleQ9lQZ5Hz3lYHUHlLBfS4JgM6mHEo C/LMHwlieP6/ErifD0T87+1qDMQK2NW9n3fTUiZFEQanOQPq4FbkjvLnjZo8rbM= =SaR9 -----END PGP SIGNATURE-----