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-moodle_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 17:08:49 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 479176be030d717cc8cd732432f5612e72b7e290 * md5sum 5a954ca2478ab92d440375dec177dedd 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) iQEcBAABAgAGBQJSXXaYAAoJEIXCXpWhbrlN4ZgH/1DCp+3LomzmunAay6JSXFxh 7O6nvmbW8J5ADN86whiD464M2wa+MoIYr8nKq4g9IdKgKx9sFo18TK+XWRUoM/bE FupxUpy8QGBqQw2sKguzAiOAOLyUmcujpzG5VrHW1tDT2AHw2wNai1OqgVlVUzMm OLx9w5Ut6X+hENO5MJlm+65JExCERB31oPs0NxtdLUZ4PkKADxSag0fpt3bBtuXp WutHYqgUGYx8ARprAE3kS38b5mvoI/daWsiltf0Ix5F4Bundr7XnLQGURqonzcC4 N689lPKNJ3oczolcM3qvUzSAq5lnxG8UacJec4SuunTPUYjzQVxs+MV0edTkySk= =sqiW -----END PGP SIGNATURE-----