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-ushahidi_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 20:40:21 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 443a763a8961520840231b18a5480ede14c03223 * md5sum 78b69d3d69d2e9099a3c482670212fb9 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) iQEcBAABAgAGBQJSXaguAAoJEIXCXpWhbrlNVHQIAMR2UaTPxOg4aETWmS3cSo4E yaB38veEq4l1TvQQQyo/S+puaSyKhVTOsZgQqdOYfkgPDKJc4yAMQrakUzt4R2uZ ZdNfrsUPm/BaTTaJO7VR3Bzj9dM3sj4kFb2kqdjP0LGjWcQBhCQWUHB2/kqPMEGe 8LtLDe2Bk0YJ9rm+fDWKyIbtLS5P4BG4kyZU1TYbf91MZSzfd6HuZMcjjhr/Q5+/ DeOywO0nTRplLJQ/I180iVttLkBmnb56JOFxtPuNcGUHWTTCXhxZAf+vP150hM6N yFo7CugolbghHTct7C4gvnBzwWzO490SScncpfgkInuQN4inqX4kk/Wrnj94qS0= =pSNW -----END PGP SIGNATURE-----