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-amd64-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 14:00:29 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum a6dfd651b8e66a786620b18f5f127c0c4570a516 * md5sum 0691dd3651fd3a58ecc86308a9f70b53 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) iQEcBAABAgAGBQJRrfL3AAoJEIXCXpWhbrlNyxwH/A5fLjDbE//b3xwCH5ce6myy yI79UJyBj3MdLhYvk3duQe82fisq5uHIzcDjVbQSmJYhtpSSgn0VkDMrTOH6o//B fflEcOjQMbxyJJBPueRC+pVRUdqBselmpSEY4c3ALH3eg8NYUYxlPJtq8ZQiv7AP Rms9Fckic0EztIxrf5eHSLo/uzl0JUAeBt/j1QGlfxHw5nQZl/kzxqu6j57Se2bd 5suyiiz8nzb3LYWF116kDp7ad6w6QjY4weC9XBta7wZXB5atsXHv6WLZoYpDzNpw I3QyDcW/D7l/5hHpRBg1+LU0Rifw8AsvI2H/9Z42Rqb96+4uG2dUR4UhXxMShBo= =5ymU -----END PGP SIGNATURE-----