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-zurmo-12.1-squeeze-amd64-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 17:22:20 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum ef10b6fe9f6a6f7fc3ba9fe81588652e62f1e0cc * md5sum 959f07f62613d511239c6bc13e806751 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) iQEcBAABAgAGBQJRriJFAAoJEIXCXpWhbrlNxLEIANy9iYFDaidBtBFcosAECGN4 LmU1puCUaWz/R9u9GRXzoJHGSIMdwsg2N4+u7hVZ/oeM4Jddbgc2QWkDwL22IadK VPki0sH45qeHXIis4hKH1Eq/dkI2SeMjDWFpBwp6U4RSxq8k/HlDcUagO6DJJBlJ K1XQseIJbo3VZrDQT33B3NPCzF1fbLXsxaZfCupSwO8LAFl7TvzplcZQYrtu64Q1 1l5iXrWfnFNIwSCeb8mJ5knm8Kc9HfkkQv6Z0cSMX2qWZsYtIVvi8pK5yCH4jono l24tGa1V0LvDbnmtiSSrJOQQMxJj0AIvkMdYX8+Ij04mzlseknvGOQvDDQv6eaE= =iNRX -----END PGP SIGNATURE-----