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-web2py-13.0-wheezy-amd64-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 10:53:07 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 643dc557ee0b31796b14a995b9abc1d567565f15 * md5sum 99e82aca055c712bde6d37763ba40e38 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 v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXnALAAoJEIXCXpWhbrlN+2cIAIO4SxZhWkv5JgrFaegixETw YicF5jHf/5ormuahST2gHmkYDtleq7pTJquVFZg0Wnfp+ietaTEltMgyo3mVJu9M gSOnJt2WYNkKXhe6gd+biVlyw7eo+VUY+xsqf1dlce7DRlQR3i/+oqglL1dinPma eR7XhzHji0GoAEOdHpPHyHCDIma6j8ONHXsSCsDvwb3uNMhGugm7NglgW/r3bMtX cDPdFjPPJicn4sSyYzIo0oJBbs7KHghs1RNGRiaaiUcuaNJ13lMplq/Cn4PtCcOW ucWiJHFTmtNFjGR+BtiRZAjYqIBmFHeysWVTwwLUodl6VI2bfxf9TeAoN0iaaXM= =sRWg -----END PGP SIGNATURE-----