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-silverstripe-12.1-squeeze-amd64-ovf.zip.sig gpg: Signature made Tue Jun 4 15:55:34 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum ec1adcc311dbd3d0a7569c00dec5b8e7ee8a2b9f * md5sum 0ae274384bec80a6eb1955ef8d0843e8 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) iQEcBAABAgAGBQJRrg3sAAoJEIXCXpWhbrlNEeYH/iiNtojOPZFEzYPGcPovwtCr kP3DJJYQkPnzIRKg8gyHte4ncl6FJ6supMEL81JwqWTHzUooHTrOIUjz6U5wJnCA X7UQ14MF1O45hZHLkhDDbuTF8Y6HpWofuO2jaVFbmZBDy9wKasK7VMIvji6pQLLR lFv4OC+8JTHtmY3A6kdcLbt2vQpmuQQAKeoDhuLKCIsbtyGxiPUbCb0xs/KpRsbG vzYjnGl/FTCpyGeQJTHdJPWXTA/vLllFpyWXypvvJdgkSQW8JwSJGYwAAZxpdmME P61QrHG9TsPyu9uEegUOc63pTL9rlC4F+WKHVflW1SLoHPrImMR9quuJmrTTsdY= =l5GI -----END PGP SIGNATURE-----