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-jenkins-13.0-wheezy-i386-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:11:10 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 526cd21e96b6e333c0e90326b855a9d32c94bcb7 * md5sum e36228b2d6f01d3c9dc122418b80235c 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) iQEcBAABAgAGBQJSc3AfAAoJEIXCXpWhbrlNPrwH/2KAT93UX+b3RQmuYj37YX60 df6mWSwUVyZptpMBZ8hCBRkQnOBVrXEjJhQAYi7Gw95WFKPy0nPpbCvrBKH9fhb3 Ni7gAf601mAANpa2ijwQ/M1h1CSHaeej/jsqvL06T7sKD6vqN/CkZaArX2TdWeGF l9qaygrY/sg69e5MUzfdCO0n/iukHpbxDc+UrTlndoObrSMVejUdWQEGPhqj960R lxEgcPIpFFO28HuiE+wNYsXyI8UPxZPiFau7sGjbegvn2TUpKQZ+2PkJgj4rWcmE psjMPvljeZldiRZwFE2oJCl85MppUyCW9pYBH0WD9BCiSCS8wk7iY5EArI5E2RY= =g3Qp -----END PGP SIGNATURE-----