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-osqa-12.1-squeeze-i386-ovf.zip.sig gpg: Signature made Tue Jun 4 22:52:37 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum c03c34949ec4e9f277d11c4ae0b5ace884bdfbcc * md5sum e30c0d59e88c90fd9b1cc8b169469038 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) iQEcBAABAgAGBQJRrm+pAAoJEIXCXpWhbrlNRxEH/RnzEX5pMqM9lUiNhrkFoLnk 10ughbeF6NYXnM1xkRBEz/LI92BabYsgEXbLjC9Ex/9s37ZRBMhJ0/PfOvP8/TpP 0mJ7heqHdhnU7ExJi8hhbpQIIigvd9wNGUPu1KAJlbKSEGiH/xZdjlrHVj90M46m Lj2XrWiQvUcYQjnqG8WrZqB+hw6AShnv/XWfRb+oDpIohTH/13hFZ/u1CI/7SiQl udVEh1A0nz5nS8HD987I8oQad7cU3l6dKrXXLFjoStElA8xzLSmKy/J5sPv4WNB9 PvCXpqJry4tWEm+WTTkPV51SXqtwyx8tWRs5+dhPn+z5q5esAo0CO1zag/xCA7E= =Zk51 -----END PGP SIGNATURE-----