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-amd64-ovf.zip.sig gpg: Signature made Tue Jun 4 14:07:29 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 5accad1ccbb31ad44c3a3f1f105d855e6fd53b24 * md5sum 54b0fd6c75c6eb913a1fc0467f130455 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) iQEcBAABAgAGBQJRrfSXAAoJEIXCXpWhbrlN62QIAIa9STCX18qXf93DDThESn4j fkvscJmMDTSMQ0PeGccNOJF1Qu5X4U4zGMG6dsezCi8n2wB4J4UEeVWZdTBSYvUM AfummCFod/kW/7t1f0cYOhdhBQnlFRoWr28hbzbmEwKU9BDrLVseaxJwHjRc7TwY x/zkv/IuHxZiea3+tPthhLBLshVO/6AERHza426xhw3/yLSo50vNY5SJu1VqgFEZ IW3A70fPtp6awkW83SLJXRLrmNCG3L/k9Z/10F+0OomFE/RljUQ9jZGME5mkDRct 9SC2llYm/VVFIruES6Jy2hSydjATP2JaxJKqbO7J6cIhzKGcSIvq3yQDPeoezAQ= =6Agb -----END PGP SIGNATURE-----