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-12.1-squeeze-i386-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 21:44:36 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 06294b8bd3d73258e5c4bb2bb7688eeca28d1e99 * md5sum af39351acc88597ea1bd7935f4446516 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) iQEcBAABAgAGBQJRrl+wAAoJEIXCXpWhbrlNwMAIANNsFDW3KqZgg1XIGkjAlARR lam13O1Fvh6XiD9d4RAtARntxIOmjC5ET6pBID55p7euhZ+bo5PxYieojLuqf28B oRT90uBpnmzu/sTMNUqUBGVz7C6aZ9I6GlmcI2xUEHK/fyGuFAo73gqYhLELnBKt tEmMFW/nP2MfvZ8ACa8dJXjPI7saXgG+Ea/rsTKm28Keq1nCYBl6CgT9MpruMVgx Ff4y2FlGXYVxRV3vbcXoR6xvdqxB6jBOaodixFUQFwEj3Crp+A8cNIYcWQlyLMcj +mi43AZDKYR8vl7BtxbonQCHorbAaEn5I7HgI+bTBUONhmW8XZk797rKdWKuEzs= =J0S+ -----END PGP SIGNATURE-----