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-bugzilla-13.0-wheezy-amd64-ovf.zip.sig gpg: Signature made Wed Oct 16 08:11:22 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum a2709fce8d419b7d018de6465fe4189af7179464 * md5sum d28a1273ed9b05dfe29e5ea33556090a 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) iQEcBAABAgAGBQJSXkogAAoJEIXCXpWhbrlNrOwH/1PNXmYXd1ZdAMp8MqSrl7PI GwvUkUhtOuAdosDOneBphRQpDxNZIh1tf2by0Lc3wVXcbJTvii6TYBi+6rTGKdgt NB523AUQWzDwAiCbs880/m2CC5dyfuh3FkwuPrCSJGke18XTX11TZ7/QtfInHt3V i9RSZ4R8BOl2HCWaBiHiEnpgA/0j+O4OvqNcd0QX/NlJsVMbIDiQDBrtxlOS9vom PHhlYWznF0o3y4S99wQqF1D2zi+DXMmli6X/A6BZZlqzojufg/60SHLdCUfX/dBX U2j+XZn5ymfJO/k/IPZoCYlYoRC4FuDFdXXktnmR4tJc6cWrOIe6rKGNmOTqnxY= =xkQX -----END PGP SIGNATURE-----