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-magento-12.1-squeeze-i386-ovf.zip.sig gpg: Signature made Tue Jun 4 21:51:03 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum b8648b16f1aee39c2aa0e8bb4907b81d32f7613b * md5sum 12dcd99550eacba907d78c3c00ab04e2 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) iQEcBAABAgAGBQJRrmE3AAoJEIXCXpWhbrlNFdAH/iAQyCMiQELhPhdNoRYaKFE+ Eg/zQSumFc6mraU2xOhlObr4dlw6BjYCAARL5o7Nds9Ricr8fYNetrct9BW0EV3K +0dW3gsV6G/xF70FMf+XhFjBSCGwy+VeZJNS6d2rpqc9WaAOyPc7B7hBgbG6tIpZ qwfl9bSx/3aFvj48Yu1CKJoeJQXQmQZ/+jGYRWsPuwm1WirI7c5YXyTTrPJZjfTU Aj4p/GnjTuOh7g48YsepMRdrC+/5YdVxbj0hGL1L7SNk4ZMXLNu4aFLqOw1C7s+h bWV5zlCz7mLFtC2ff8I1aV3142t0bGNM4hXSHcbAXYm3b/uzX9LpUBOmSmDCxFQ= =jljE -----END PGP SIGNATURE-----