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-gallery-12.1-squeeze-amd64-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 13:51:30 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum aa2eafea01873bf7868cd2a3e050fb099afdc19e * md5sum 77592e93c75c5f7796fcb2dc6dd3a99c 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) iQEcBAABAgAGBQJRrfDaAAoJEIXCXpWhbrlNZdUIAJETv7HmAiH4mn61fuEoNhIZ 1zF/t31FcBtfe7QB+15gWOUoCkCCW4LnvHqtWN2arnqmPoFH2C9V4ylm+FUBqFom wB/NYyDCeB7IUT4wMll0lNRdEfwNUpZ5aXMjyGKT/qtWb5J9SfcfAL/xbowW0YdG OCSVYxsYf0/NCAaXF0s3YJ91pQHw95Cdh2h7H6MampYJxUxDcihIbI+aj/jn2EhP Wn+DbcPL3zeRdWuLKZ20RAHuaFlJSQePlf27UNsKd8PC4pYOyIfoMwO8yzmOeRcQ Ou4Th1GmAwnwda7Gs3kxGnvMU+N2IJIt5e3R2c23LUrn8Xb7RJYV5s8qXMMqkks= =Kqxu -----END PGP SIGNATURE-----