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-openvpn-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 09:24:07 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 429c1ac3cd74336b41d3a6880cac0267691e0ef9 * md5sum 882f636d0dfa7f4a304447e59e9046bf 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) iQEcBAABAgAGBQJSXlswAAoJEIXCXpWhbrlN78UIAJ+sr1KJUA2V0ZPNJOQtoxQc i06daviX1O0g56GEc6sbECZpZAlTXJZtnS7UrW3oeSWhkhvmMpTFYqgUMXBWCv4+ oqlEnX/4fl0CVgeYB8LNvAbpjpTQyxzoqtZ/XXHKJSwjAB3+fTJ5xdsHJhMSWQlg xH9smYNLn4/oacsl2Hc1cpOVBs5npdIfhWlBo5ZPPKV82H4zhkZrcrlnPZnIIL+C 4V87FKwow+b4ZZR7vDZJJjQKJBJAOvvYFslPwc7VSpVVg9Ee+dT0Gb+xN/mAp8Cf dX1++68wqYp6JEIasZGvr1c4wn763sSNxN1pCoM4be3StOb/hhRUMwxav7hLkJg= =IQtj -----END PGP SIGNATURE-----