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-phplist-13.0-wheezy-i386-openstack.tar.gz.sig gpg: Signature made Tue Oct 15 17:53:32 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 93149698ddc6aa36111aadd3ea750f663eea50bd * md5sum b922d23e6f66744049c7534c7b828792 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) iQEcBAABAgAGBQJSXYETAAoJEIXCXpWhbrlNKooH+wc1F+RWQ8C/9gvil420u0Dq 4WdM1gdUBEBD/Q0ASEKNGlI7MeBMrXcEnIhPiN5G/Fsr1W6n/e5XaqDQuxIRTMw7 1cOFlWmqo+IDhcwTo3AD9cjzYbUOblwH9sy857OF1W0g0Tukul0OIuDqIzQ9LpVS 0zqXmcGMuzPasvm2IO24cHhgNhhMEtUtG4TDBRcNTlAKP8PSv3qR03Zp8+/h1p9V Z1rat1ZMvUxPWDFOPIL6GobsmfAds+gMos5o5T5CFappM6cvCvK6XE+T0depGMEN rdBcwwyooO4hfyPLoF4DAaXc3D1uJ6DxnXYwko/KDbGZsafG5iKYU5degYILhPs= =zuoo -----END PGP SIGNATURE-----