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-lapp-12.1-squeeze-i386-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 21:50:55 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 5878f26e3f4b61dd04b70433c99d78970f9c6571 * md5sum 9d88fcf1f8b781c2a06d7f6f9815fc3a 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) iQEcBAABAgAGBQJRrmE2AAoJEIXCXpWhbrlNXG8IAI5xz6cX9RJ/A7h3TkfLjeyW zvtmeKqXdKlQ3ItUTDqC7ngPhtIGIE+p/OZM2pD/eXhcc1roHwRxtnaH6pUy5ycp FNl+nUD4DotPClsmauCAo0QqTt38Xo3irUsehWK7BVm0woPiaPzDOdsB83kSCOWf jFgjkf+J/QGKdXbzzS+BzpkX4+8eIJJNTchJkg7pX5jEM4eS5PLWZJVehs+H345E 66DY/UOAoeccQJTOeIh/DlyJOwOKhp5Vl3+IvNuDjGsHb1ujhWzOajFE7K0eEjI0 tiMkXnSTZoESwLZJvvvtjyt85ef64vAyNSjz7JxNv+iz7Q0CKUIa17425GWVos0= =ykR6 -----END PGP SIGNATURE-----