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-codeigniter_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 15:20:54 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 3ee8415a5b1955e5143c2e009385737d158f394a * md5sum c3ba7ae7b5fb9b37095c7ca7bbfd8ffb 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) iQEcBAABAgAGBQJSXV1PAAoJEIXCXpWhbrlNS5kIALXKgoaZsqMn0smPaz7Vc7u8 tlRFmcvaN/Ub6XleaL9No3WIW+uTZ9tcSdTYRT8HM4GEEPQ9zlFfIdmw8XJyNzVX hS6GBCxRkR5qAPGpkSEH/p3hSj7GXTEZpa8EeWk/N8Xbaxprw69pevq5Bdy1IFrR fAe5yoRGKvu8tONzvgsjYYTPTrKar6s+EJY4YY40/9jG4viiI9caqLzAXnVsuqFN ET1pG67jqW2+RcENelID6QJmbOmctojCPWIPLS+laLrbDqzefzVVFkO1SmMZohrv XD55O4QCXqa154DPWhjqBNHJ+szkJYOpTBnRwP5zpHu/jBzoPwU63oGPJSny6gw= =owXP -----END PGP SIGNATURE-----