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-joomla15_13.0-1_i386.tar.gz.sig gpg: Signature made Wed Oct 16 07:25:38 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 7491679f21e4389b533fcaf7929f4460ca0677e7 * md5sum c12bf0b76beeca57ee5404b527db606e 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) iQEcBAABAgAGBQJSXj9pAAoJEIXCXpWhbrlN/tIIAJh6j6gqA9jT/a3zWXWkNNod PZkGMay+fKKjUaNCaY88CuDQ3UETZ+z/ic2SgOWoapleNy+Tlq4ktbVqjftflpXE UXhLXtEHZbsVIQrjAQNiNtzc52isIxneanYaLClf6ZnZFG6Ow/visOXnutZ1Dmc8 HqxPTslKewCAHaqmx5rX5guE99TROzaH7G6NZDmcB8KL+Pzh+eEvL7Y9bZhhgOU3 dg/uQmNP21afZQZYjxGWJR8u1ELkAFZr3tVghUbTS+a72ifpcRhKrIOq7x3/QJJ5 LpBuE1Zc2L1ZBbcQ3gbbLFYvBqQgk6I2QIA3xWBKjI4pOAKeMOLb0F+ZXJScWMM= =+Gzs -----END PGP SIGNATURE-----