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-phplist-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:31:28 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 8bdbb5990211f228e119c4b5f6cfe06432f1d55d * md5sum 55bf70340fb31bb96b87d599fd0c31fe 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) iQEcBAABAgAGBQJSc3ToAAoJEIXCXpWhbrlN+rgIAMUfpZXcwfrK22MA31G35HaJ 0f3x41x9TVihW892V5jHwbNXRQXfTAlfo93BErAA+T/IQms2WYJxJ8XswDEP7g5Y x32SDQsm+bMBXd6I2nWNnF3Z/Rv5A5WPNgiwJawOHMlB5F0gmHGUPJ5wV+YCfVit ibAUyPQcgh3aDlZxUU48vZh92gyV3IXvjg6BGD7b2ZcwqPakJg7AC3O2awYAsoEH i+Q1rHSUspku8Fa1+TqrdYqnaTs5TijK4hrOZMhJnN2tlwXkG7nST1A6SjRv9B6o cvOn6EVCiWGFpGkHdo6I8NPTU2LJjw3bLvJWYF3W8OYcqOFKGrPWgUuNVq/n2kA= =4OIe -----END PGP SIGNATURE-----