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-mahara-13.0-wheezy-amd64-vmdk.zip.sig gpg: Signature made Wed Oct 16 08:50:43 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum fc33a3c042bbcfed41828124ef0f993328ba80ef * md5sum 6f86027e79c3b78ee1a21a00be971872 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) iQEcBAABAgAGBQJSXlNaAAoJEIXCXpWhbrlNBUEIAMkXdfm9y807A8TfAUeNDHVf f05NhBlIkYJYtDFdWMgGk6p4qXAlXfDWpCSQBTsSNdlTbm6z1hZhi85ub3iuoY7b l4mLm1mQH/jNQvH+hYOXDiSu3X5FYzyjwRl4J1853QmySKzxVcvTnJ9kuGEwKJaK BIeXqNrVsApZpbKfWgHiyYVOEHrsZVUN63r2/DDKWLI0tYCJ3VwnhBSFdhnspt2L yvWM3swG9I0yKFoRWV431fYtqL8p1UIpb3lISbw9Q4XcaXj/o45/MuZHZ+HDde3F cnrh0ZaH8ySr5mcI1kYvRXsziqz6j1tMkezPEDuUIg0q00LKSPBL8guQe/cU554= =gyJ8 -----END PGP SIGNATURE-----