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-bugzilla-13.0-wheezy-i386-openstack.tar.gz.sig gpg: Signature made Tue Oct 15 15:03:11 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 1d44d3f09dea37bca6eea87c9039efe54f26e783 * md5sum 4b33b75e502731fd4f13fbf7f3e610a3 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) iQEcBAABAgAGBQJSXVkmAAoJEIXCXpWhbrlNdXwIAJOIxuM8nWAG+/BT4d4YrIB3 rJn1Kyg5G7RD3r0D4Y8Lxrj293I3n3cwV6lcvHGOJNFRY1Yapk8bcTx5BD7+CMOq DXIfHrAf2HQjr/7L6OHLdLFC6uh8ONfbiMj+kOLEC2rgqzVIlU7AvVr6eQHuGiXl wVjHgbI1TZh20pAB7sS8OJewob3Wwxzo0IBrSyVt+6MxaCrCjkXTInxOsPXiJ5tY mCFlhaU2OKdjBZopj/Hh0D5XRSXvrso43+E9CGbu3GDNVW3QJn6HypK41rnn+Uh5 rd4ZJPYL8G907akDjvh2yD5QSPXdl5z7PaRDt7OBgt+a0GqTKxp6sMzzsstD9CQ= =srzX -----END PGP SIGNATURE-----