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-elgg-12.0-squeeze-x86-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 15:32:14 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum c9d36584e0dd52f9940717ff61d89b332719f5d4 * md5sum 65c97af501bc7ad12b4642b647122d8d 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) iQEcBAABAgAGBQJQM6n1AAoJEIXCXpWhbrlNQsQIAMQD8CnUktk7wesrQ7fmhaaW h9MrblxEbu8fpZlSuuDt4e2OWO6fGddT0MMR+N4o4RrlX7BADG0uYRUjcGlmQS4u CZteeQgRgd2gAuqsnrAPGoC6fTM+zGsvBJDR9LgVtCnPfxU84DgKBhwkVCqkNSfm T3sOTv6SUm0B8fCrbPqNiSeU6T4GJHKNpeNiexxLDdBgnztq5MZLf+cC6hQnu0/t 7w3H+rBKyPRTWqcb1ecKRAJlccl4ar6FsyCM+QdQ4YgcGqjW9ms+UAnrn5aW8R49 muLeT5cIwhbkAevTMyGWMn6Cib3Wyko1GzOwmcT0+OW4vDdb0bomMUaVTnRKAnQ= =ffSu -----END PGP SIGNATURE-----