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-simpleinvoices_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 18:48:50 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b3fcf154e335ee9eb526d4bc743911a7d5598651 * md5sum b438a71c7c30410f7a994a660cc1fe3d 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) iQEcBAABAgAGBQJSXY4KAAoJEIXCXpWhbrlNnOIH/ReyPCv4hlWJHKDwTgnHttfM uAZICsBzS07IWhPsMjze3p8wBNgKUk7Daxox7E84Uigf7wuhEunDbKCYxcuwQ1QJ 7W5at1dC1YNXuOpBok74i06pv4/o2U/HZdYi5z7STdPoty8muJVqRWsZKqcVJfXa QlQMCh/NH1Ax5SVtAbZckzIFDPw9MkYbKKY+Rb7y/kex/MQU6aAUgzKowEkimif6 5ZEMMEmnDbZSUG+734YTPP+ETVybEIoV0DNHCNrddXDkmXwLylfs2bTHTl26iTFT heqk24DnFxTxM9hy17lugm798bTNyXZl6QvY4GjmqNxQ0J0jkyD8n9A4ycn9SO8= =S4Vw -----END PGP SIGNATURE-----