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-owncloud-12.1-squeeze-amd64-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 15:07:00 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum ad0f49b511cbf8b5206d3dcf44eeea7a55f0fa8c * md5sum 19e7ef5311b2dc8aed1676acac653f2c 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) iQEcBAABAgAGBQJRrgKKAAoJEIXCXpWhbrlNjy4IAIF/UkVYtzHcXDW+N3ilxg98 57eNHr4jJII3kPXzzMIt2nnIvoTO68Gav7HGC8FVmkk5nEOfYeqwUdeyK/2ggCFl jSdUYMCH2iSnrYOLQRbKMxjD6ba7rcPi+JQyN8LGDSrntPlkXClVzDnSnpFQ9BbR RJIVqeG7KbJCQIaSzNJ1/IGsONGqptyrKc8g1rCwgfsDxtzO7oF1ujq0suuAsmVm rFJxw/dpeGXbtpvxrlDLmOm+JoZ328oJu+K/LHecpJTKpeIbxmnBDT/5jae/B4wX VUVij7GtV/AOeqZWb4dwDluUw3RN+ddzS/GsaQUdaVyh3mls6pZ9K18MAmd5Hvs= =zpcw -----END PGP SIGNATURE-----