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-lapp-12.1-squeeze-i386-openstack.tar.gz.sig gpg: Signature made Tue Jun 4 21:44:20 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 0c45d9d0292c27220f34458044362a0562df1657 * md5sum da087acfe5b44192a146751fe4ac66b1 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) iQEcBAABAgAGBQJRrl+rAAoJEIXCXpWhbrlNgfkH/iAWsvRkS9UzlFzW5FSw0JRs tgrmEjy1U/FwXhI+pQ0dpornZBDquAgu5XuIpe2jVWHE8cHDdVVAa9fez+lwJlMk 536v68W4gwFfcjDOdmD/aHZtF/4/sXTib9uym6lrT9QQhTKofQWvkcoQ9mwiRFTa q8WfPmNWN7muJ+w7+k47fEejPZhHh+Xf9aWAkJZMUtRQpijMctiDlWF00sQAkubc 9YeEqEx38YUEO28DlpMqoMAdxE+pB7mbGTjZzFPpgTIBOCUmQ/cFi2c5xqKTwDNa O2mRLKIMF9YfxI/5B1/YsCRZ7yo+MTKCXopVkOUWnbBz7hZxL8w0oU3f9UrZNDU= =VhKl -----END PGP SIGNATURE-----