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 debian-7-turnkey-tracks_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 19:55:57 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 9ce7389be2a2e2a17b0527c26a1b60430236c774 * md5sum e9b04575dacedf2bee4db514ed7942f2 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) iQEcBAABAgAGBQJSXZ2/AAoJEIXCXpWhbrlNSfcH/29iMYyM7p6kXi5H5ap/LBAW zAHimxFCVJtJ+WxEeZRJF+5pUQuUoMDFNvn7VQBmfbJL9QFtLpYT+JDitpXgzGC1 9eD9IqYhQsSzd59Yoq1JpGsZfwL8il9K4EdSWcdPGiMpYe6Uua/Tgpc6Zf/vbc2i 71PJLI03OS/waT+ZNU01l0IwuSJFivBjEVnyp2omxxw+boNMjfwuLVbeVizgqTQ3 tlmVxe3VH28okseOkznoByqn4x73znghAC8RC7AtOXLFUTAvbqk3TTi8/RI1n0dQ rluUQSs1WfvfWg8+7K07D/4aqId/U0Yrmn3+1OI0xu9EyfgP49im0LPj+QTHxV0= =Cp2Y -----END PGP SIGNATURE-----