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-e107-13.0-wheezy-amd64-ovf.zip.sig gpg: Signature made Wed Oct 16 08:12:03 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum cfe66c478c3c3709bab53a09531833be35c49537 * md5sum a9fa224ae8ac11bd44ab933993ed5549 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) iQEcBAABAgAGBQJSXkpJAAoJEIXCXpWhbrlNVQ4IAKMvbRXi1Qigyu74T/Y0A6Ru n+BP0AfMT+6lWbtrSKGVjvzB8Hi5UEBIBdFuQ/jWgn179LGe0klMTZ3Rw1B0Dpix TUNngILEin6PCZMcCHyAoh3CdlWmQ9wnqJhFSwHfKy7WOw7e0hb1bKBarfhamRkx fRpxPs/UtgrJCzn/WgwETt0sHz83rKacJL0bTqTlIGVhP8MDxri/2gsee6K0wIIS PgVdthw9vmz+t5czryB0Bb0qkgVqwcMvzTwGKNQIJcxkTZfX3+HycpM0BQX4HbUZ E0iZwN85uYS3f1eIlXHAoR6w7S3wqTdK1zcO/RV6HT08EVG1o4ASnewuzsvgys8= =+PJ1 -----END PGP SIGNATURE-----