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-mibew_13.0-1_amd64.ova.sig gpg: Signature made Wed Oct 16 09:20:20 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 1bdd2a95a587cdf5ace3d63752e29128df29b160 * md5sum 432cd0068a5c57a68113ff4dfbadafcc 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) iQEcBAABAgAGBQJSXlpOAAoJEIXCXpWhbrlNd40IAOpwaM2eFCrXPmCxfOVrqFQu i4nlDIUechGZg4soFtVibTinzvyMEgoA6FcgesCkK3KX4qIlCqJV/XmJnmiDlsd9 p5TjIusbSSfVibGcYIQuAiVua58as+6zx3CoZ8GQgGNtZKgMNm0pSDvPGvDuL1tt DPnMYffyB4Ftd1cx70R2G0nlhXnWXu79B0/+1oJAhuPaTDC9jrnfbLvtPzP57Q2G 1vpfnz6ButfRbCkirEvtk6L7kdQ+1BoKyo6lD0rVb2ANPlA/1HDp/DYq7gmDLpWa vdtyLNoXk5HkjVLRjUPt7nLLw8gaboxy/UKD3e9/K2bxYt+XoMSJTAywgAUdcD8= =6VEy -----END PGP SIGNATURE-----