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 debian-7-turnkey-nodejs_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 17:15:05 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum d5626ddcc264acddd208f5993db7a11d112431f9 * md5sum 4e0b502ed282b6109b4a7dfb13051fed 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) iQEcBAABAgAGBQJSXXgTAAoJEIXCXpWhbrlNcpAH/087SNAhGYy2kLAFKO6PZHbe bWN8NTDI4QlYyneiq1HsPxtEF3Fa7BHTDrTX4V5sUmLfd0u03A/CxDSgRgv/i2Dg ynM+nNaJshdw4we4Q75hFtAFZJ0cR5hqjAGSZbstl8hC3VZdoZ+4dGHG8nwAxUE3 OWZTgAT6brJc/70S4+aGQkr8pVawTjqhVOPpkb8skff0G/UGl6OTpCIfd/a54Qwk Ww+Ltn1+/hk4B5QShKpehM5kN3u2fSKqIFbMvPGsE8DKpqCwzaepepqEwFY1PmaF L4iu0ywurMesGOZBd1WtS3iDWeTwBeM531j0u//+UICBWQYNAIePWdmj7K0tB6A= =3pth -----END PGP SIGNATURE-----