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_amd64.tar.gz.sig gpg: Signature made Wed Oct 16 09:22:21 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 33b982243a466fe5acaf5a63e2cbeecff6991b58 * md5sum 71d78c1f7448d28f8fca49383e51ff8b 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) iQEcBAABAgAGBQJSXlrFAAoJEIXCXpWhbrlNujIIAJ+DI7Bwo8EYqIhdc5epTuBt XqUMSkds6duxVdD8wc1ACtD0wXtxZAHyCEpUclM/M/Z90RFxqqLxIG5O31TiOtx+ O2Z1MoZ6Jt6ZHa9fTNoAq+bbI2M1CrEQGuKKJztH9G3a3Gup2C/0ewAKf3RU6jQW /bN8YfQwHRiDk+8ce22x+alqYO3oA/O9fiMN1+Xo8ECkG7tRLJbFg3gb11jKRgNr xdu3f5IXqcHFuxx3w+wz8WmxseUmcBB6/BkSxd8e/CRxFecGrol8T25o+edS9CM+ 2wtlPxX5ds47Qgf7P94ZrbkrgVq1II9aSjr3zQOhPKaDdsVofpA159Se+vXjs7I= =we7r -----END PGP SIGNATURE-----