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-symfony_13.0-1_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 10:22:59 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 7820264831585e7d08404e043c6909b1174dbe01 * md5sum c764f9769ef80b74677ebb65e21c4c35 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) iQEcBAABAgAGBQJSXmj7AAoJEIXCXpWhbrlNhn8IAM4ln8tRLyCu6uxTknPQSgwy +WpuVsFsbd/YUrSqykDHZrXJ7zM4nqQoZMzeNMDnkruPpeeRjvaL6IvDiyoaE8ps OJQwoVGEVQ6U9UGevdH6lNOARdMTgTtcU+ueyfRaaMsMx9CqeseZUBN2l9UQuw1L ljULW6PY/+J2ivMlK282DzvI6o3NFzaVB/nmmdV4WzSYctP/568wVyvM3bI8lXiw z23cYm19A2NU38fbkeTDJkfoFHZ3cHvUdmgjGRPAByUFgSEpPpawm1YNsDz7eH7J x2oiVPaiCsii/vcyMkuIiOPi0F6o0fxN2zdIU2b3MQtrAYfHNB9O1eucUVZ8d2c= =Wn6C -----END PGP SIGNATURE-----