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-postgresql-12.1-squeeze-i386-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 23:25:24 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum adbb7959ca45793d5c7873eab34c839b2bcb8076 * md5sum bf90b02e763be16d85f0b12ca221364e 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 v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrndbAAoJEIXCXpWhbrlNNPEH/RIku3GZk6pxcDjmS8EqdnOc h9tZFNjgmkK6j5mFs6/bWrpSxqjakCn9kwlVnqhOi8JFh48L23IAD0pZ0YKv2nmc Yd418l7gBqjuEtEE9YlHypyBygbfbes1hs2FEKNvA9NAc0Q7+N3q4p1p6B/jO+Qq MjybTeZDVJZNFxfdLJcgkAEiv45q+46ucr6wPDdhlUDNXco+931gQyGvXZ46wX11 uJtBgUFLGw3aNwyFYVlZvowdXFTlkszxW+jHphzgtZFtdmi6pBIJYdd9Jk4DybM7 bhxh4ZfSKTIJjRqjR20nHnHBRRVx2+TlWp5hWnbRQ9S4JfOPQLvXrf+BbrBfAM0= =+Nz8 -----END PGP SIGNATURE-----