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 turnkey-moodle-12.1-squeeze-i386-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 22:55:15 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum f5763f9e0cad1ea392f8fe73b3ee4d1e47db4f65 * md5sum 0d13ebf2ab4a4d4b02e331be82870419 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 v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRrnBGAAoJEIXCXpWhbrlNFzEH/iJ+CqTNQlTS+9mN4Jwvpvai Kt/WOBuxC212KwWvd8J5Y8JKsVgH5ZzhOHmzlSUJ5ve/5Vn6ugdqc7cJiDbo0kcJ D07qtYgKF2cF1UABWAB8vdzZadWynBW1N0itcfVxZzYwygxQLMNgw1kv+XOawuQK rAdbwwgnnQTGnf8NzUiGRpm66tGGasNM9KP8Q2+IjRZUlloqQeANsRzdWiWcTJHE xvxbT3wh2A55ZAszUPoGD+fPdW9sfOaFOCJFNrQJ0lxy9fcaIF6MF6eXNe1rLVtC cXn1xrj+5ohmGK/IJhEmst99Kd66jgqClBiGjtNLtF52RxV/H81YZdRMt8Lj648= =o4cL -----END PGP SIGNATURE-----