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-processmaker-12.0-squeeze-x86-openstack.tar.gz.sig gpg: Signature made Tue Aug 21 16:32:26 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 6cbb92abd309c08c5101f7dd39807807d027a8ef * md5sum 2d84fca84d6db4a973715a37c48325f1 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) iQEcBAABAgAGBQJQM7gOAAoJEIXCXpWhbrlN6H8H/R1txkuF0wOyFSp+voGl1Cs8 vb8o4C8D4Zzr2ZH89kc33kEuqa0JZ1/LuMWgSn8pG2R0qDpwaWbQsh627RcumXgs yHLg7T0tkibCxLhPK+Qg/+Mug74+ufl0vDjZj2yf3/lI/ugVWI9QJNMdCUwXZVAg al2Dpi8fOlAASO/R1jMLH+nqRqgPjFEqTza2K4ao2FN5rxPPA2XmrfpL8uMCNPrJ 41lM4qbzixPFElkHcCmPqcmqGZUDPq3HGrs0YcegN+asUorpctt8eYRVN4sH5sk1 O5ZqB6jA5cghKzl9dtISz/7Hoi9ZIXr9XLMye9sjeoCsXzM1Qs2SYFXiBC+QBDM= =nh5U -----END PGP SIGNATURE-----