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-statusnet-13.0-wheezy-i386-openstack.tar.gz.sig gpg: Signature made Wed Oct 16 07:13:23 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b525d2e891bc7ca4445926491498845ad522d204 * md5sum ab415837035b901769a8d173c1e846e7 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) iQEcBAABAgAGBQJSXjyHAAoJEIXCXpWhbrlNOKsH/1913FM6iQ0xPwE7/4SdEZ8m Lfp7by0k+WEK06QeOgRWz4qu96G85R8cjQMWRWJ5TDPEAnBvGa1GOpHsdK9fE1cE z6dyzgKb+qYtiMW+674XJCxkgtfiu5bMPjK5mSiFn8aDUXSw+vI/K4iAg99MSDPI 6M4kVA0zU8UI1J26cztQdjDgL4rek4yln8mKvuf7TRV/pz6kC9rIneQ7abuDlDbY KY/iAKoP/nNeMu0jDfxOb7BeKTWyT9k2glieE9R6HMHVOHaxHsFvNUraithGRJik jOmDeAuofhQTck18hOuG45fufJnj4+MZL4GpxetibDPL+VU5DxcCpP90Q9Wi65c= =sb/5 -----END PGP SIGNATURE-----