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-trac-13.0-wheezy-amd64-xen.tar.bz2.sig gpg: Signature made Fri Nov 1 09:41:24 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum c869e0bb4ae8c6bd0b61325863fdce9ebeae23b7 * md5sum 3d9bcb7adbaa9455c73e4c03ca7f79fa 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) iQEcBAABAgAGBQJSc3c+AAoJEIXCXpWhbrlNwBoIAKq/J7vAaie9dxpXVdW+OBjN HQhCEtZPJP03bcR1OSAqyJGyRtSMOzp4lyCjMtvxmPFta6NuKmDTR6EhdYofer1r 0ABzOow0mv1ku3yhfIWhuUfMgeIQuSpjvtFMZp+y1VVz5mEUsAnwiBnEtQp3AuHS NXUdM1Bsv3AyBht3Tlhdf+ndbJ5gBmRPivtE3/0Vkw9qeP8tUvb2LzrDw2sDGhfJ axV2Vtp+Qv9kUsggRUMz685cKXzjc85vl96U0nrjIrSYw6LwOrlIt6YZ8LbAX67B RDdoins97znF6HCFvHpChT6e3OsVDTX84Em3eSdXaALAdaA5Lm9oI5CQj1NcWQE= =ViLW -----END PGP SIGNATURE-----