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-owncloud-12.1-squeeze-i386-ovf.zip.sig gpg: Signature made Tue Jun 4 22:52:50 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 86176836c4eac46f27f37e38a46aed08ba5a3519 * md5sum 0a6b7c021e19a72420e83f7e66623a41 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) iQEcBAABAgAGBQJRrm+zAAoJEIXCXpWhbrlNxkoIAJz6wu8P0W2fi9bjZB9q06rv 3gvOP+HlGC/751q5GCZNNJW75n0jQiUFS2n49OyJGlPKJPSOVhdDDoL2qIRfgJ5r LKN6Fnl5pWsgSdeOsOyO4xN6pKzl8Yu+QdkTxN96RiZYVW3L4hPQzSSF+P1e6H19 DO+j3FSRx7AYJa70z6tGq39ylTiy8efpQ7DSShxD7jNZbla9YZViWAn/sNQiEZao ycXcZWAsJMKsZa7SMi6aTqV52aCvmSxRtWolbOSZ07RNsgRSSuD77lBLagRLcey0 tmOfbNAyk1G/4fcyTSPLA518zwBFBynEESlgZCpfknM2BOXA7ZichW0xmf5nEyk= =8Fd2 -----END PGP SIGNATURE-----