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-drupal6-12.1-squeeze-i386-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 20:51:28 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 0376f40943ea8b024b136b1822388ea0a769ae93 * md5sum 47fa72f4cf2de59c9691ad2b7dad50dc 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) iQEcBAABAgAGBQJRrlNFAAoJEIXCXpWhbrlN1GsH/3RPVrh+nEve3LovPwG1klXv DsEjxChuzcsy6Cha+EOApJhn1Z1N4ZlsfjCLgXBvFh6/Bq+GQhDEflHnzTdWCKyW wLZ3KLfvJtDeJOFw5HfLqu/p8JvhTj5KBFsnHfzvMZxBo9GrGTL0L/zk2euiRzDl 0SjeThykuJJ9tjrUU/F6hmmgVDmENtnaRZVhRDJ0JmyU1xG1D+4TtI8AjmesRXaI FH2nMkiwtGM4jw2uhIvZHoJgl79kopgTiLprVqVv27AkEI2JxznvTVwGyVz1SXdO OU4Bjfw9gI8AtaSCF/iRV/TJsX4FHperuNmcU11xWrNHCUXtxFaOLRZMG+tvB6M= =B0S0 -----END PGP SIGNATURE-----