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-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:35:25 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum f8bab2c7d2801d3aae06eb47a14d154ab64f4e1c * md5sum d2109d1920c8b90ab0cedb4298e569d6 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) iQEcBAABAgAGBQJSc3XTAAoJEIXCXpWhbrlN7UMH/19beHQCGLT0OJ8VjYXsrCG0 Uiq+Y96p1PsZB0QYaNmXsJ0NX8rFHXZz03Ok0wWzulr18IkAyg430ieYrkjfVpXJ pSvTQf7ZeOMa/0QkuBnBsHbZSAcBfiBnT0iyL+d67ddpkWIxrDqnmvUQjpcBQP0J azJvAue9niB7Yii6L44G7fd8tS9GbL7qYeDxymu6QdnOmgtJUdUFlYJ/342lYKNL 14DhtNEucvphQf0kIoPUXOj64v2hqE1zBwiuawHQOQQwGe+lGMwpCg2QBBybKUsv AnUikxFu+U5phpFlw9NHeCTV7/KDTDZHTvr5FrKQvoAfTpK/9ayrcrpQ15yC5ag= =Ff65 -----END PGP SIGNATURE-----