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-ushahidi-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 10:34:56 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum c1c8621cb9793b2f0b16187f388dd05708cc2ff8 * md5sum ff2fa408bf97e6d71befc41718be82ae 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) iQEcBAABAgAGBQJSXmvGAAoJEIXCXpWhbrlNTbcIAMiPGIjTcXg/M4rg+N/wtFrn ZCedtI/fYs+H1ojPot6rcEf/48MwFbu+Dx9Y9YzVI/vt05T7NlmISrcsIoum1bm5 CrN7qh0VvoRUeaS9bfa/0CA4YwuUiYI629pQoPz3QsBSNieK1dDX20mBIZa1dghV NB5gEz42ufVO7cLnKZ1nyQU2hWsHLfRvN2LqKp//TGr4lR4cl0LwynwRSmbcoOmO fZqIva1OG9yhoTFNRbj4EWRRk1I6QlTZBgHeDF7uuXDjLp8iC3umgpu5WJmsuSfR TeT3mMOnevTyWzIbqeUd2df4ELW+jiD5JiWB9/rYNzIBnPydrQqySSG6dwCCfc0= =JI0i -----END PGP SIGNATURE-----