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-revision-control-12.1-squeeze-amd64-ovf.zip.sig gpg: Signature made Tue Jun 4 15:44:26 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum de6005997a118a9cb9927cdb1ba6dbb144a4b72c * md5sum 9b4e6297dbdbd6f263f0318d15ecc49b 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) iQEcBAABAgAGBQJRrgtSAAoJEIXCXpWhbrlN5rgIALMztoZUztBI3sHn8yZnqYnh 93vsTZm+B2IRrPBt0l6Zjh2QfpO1w+Yumuaj9NzCO1xcir4qSzJ7e7+xXDNy16fA Xi9hx6uKdjGMA1OjC0Hb7RGpQYEWxcDPhKgSPJGm9XrBo/Qh82RCFWBkAysmrvBG LvqOEGpzkMiA5fIwyoR07mXmlwt6N7mNK+e26ZnwlmNbzyrKPDpFn7kh8t+O6Tvy GeCJj/agQUrt3+N4BZznKSmqa0R9XE/ZMfD4M55wawFCm0/SWqOVHbpNZIo1dl5T GuV0f5TQfFZTrifyRynZoRCZzjByfLcVB3AXTu+1GZ0z9xYLYGAs0FeaTNTJ860= =OcAm -----END PGP SIGNATURE-----