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-mibew-13.0-wheezy-amd64-ovf.zip.sig gpg: Signature made Wed Oct 16 09:14:51 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 3c1028f25059509e440e9712f493e9d4c5a7920a * md5sum ca9bbc77f662b429cdc4edf38bc33f24 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) iQEcBAABAgAGBQJSXlkBAAoJEIXCXpWhbrlN4KYIALIdzgBKqK5Vd+/xR9JewNhV xGkofSZPbacggLFq7TO/F4LQ9pt5w5jkMi9Q/yAb7YDFhv7PGaIpUgJKVHWXaE+w xEaW53fcLf7WqUsE6ICLQP1o/OD7OMc1YiMIUJYGARsY/PYnsLTtXmPRCBDLc2Q6 QUZAOcQ9LA77zlVnMV3MRrfLvSqzMyGYemHlGZNG0OrYAxX/K8GjNZmWUCox3dz0 QA9qZOee9CNL6FOObEZqWnBJ/nnwXZAdEpHd7CjM6Qxpj3i504/R6kOKVA5hqGp+ VY4pXMhozMGNzn+4yWnWQFO13ctgOj64TjG434Aa9DrT2mkitzR5E6QU8Xc33II= =HJse -----END PGP SIGNATURE-----