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 debian-7-turnkey-ejabberd_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 15:48:06 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum dcc9127e6bf5a8ccdcb9ffdea265d4c58e9d6e31 * md5sum 3135e51b97bcef00a85d54d3e01a426f 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) iQEcBAABAgAGBQJSXWOvAAoJEIXCXpWhbrlNOHMIALtKVPi/pFyaybAZua3P1gCW zGN2MngX4armdRebDmPyBN+F/f7X0IwH3Mhyc5DoSgs934kZE61kKJRAukEStr26 /TpBD3kCUkM+561+1BDWP334X+9/kRwk7lczyKNJ2hetuDzj9g8CVLrOdcQNi5X0 CXbhAWy1pyBiU2edbbKK1nhJiDkVrEnwETYT5Mk9dkkHfpEgKGjsoRSo/ZCfe1f0 KnYGgFioTSEkfdopejfJ0DVkVkgr9ZnOfYpy+8UB2Qv7tt3oyvxpKGnG0w6XDUJA zdB4eSwoQ17XQh3viJvrv1zL1vQPXsjjrnBLGQfAJJ3e2k4es1PUxhtyRjFm/BM= =JvtO -----END PGP SIGNATURE-----