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-i386-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 07:21:02 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum a16ffd1fa4ae8dce26f6cc488918ac3f7384841a * md5sum 186a457a4212913f8e4a2ce04614ccdf 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) iQEcBAABAgAGBQJSXj5SAAoJEIXCXpWhbrlNgYIH/0+x2DEorf1hacy2I2m3qvHo UH8i99I6JByPSqy+PMvhJ7bUO2joP5XFW4zr0hLo8uJhlddAGIrQrNCTe5eQa9if CoOM4AAZyfw/fOrXi7G6UhHUiVHQeuNbLw5szwafwGWmf2c78zooyn6VT9b1aujs VZ0bxA8QyzkIR6e+1e38tR/JeV/ETHiXC7KfTdB7d/wj5drc6nrW+ClZlDFz+G6b nKrDvURcFYXYjwFRXhCbQlvJdg4XmxJ6dVhMSLoeb6dT85LYhgi+MDzG+llcgUrH or85sOO0nyMfRdM+Ox3RJDsMFSxaMTw9dzVdvb+8YUhdyP2QyJLKtVQ4aS97gH0= =rc/y -----END PGP SIGNATURE-----