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-mambo_13.0-1_i386.ova.sig gpg: Signature made Tue Oct 15 16:46:59 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 2baddaff0e7946bc009894a1aa99046ee0429980 * md5sum 1e04d07c7af5fb6b1f48172aec053424 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) iQEcBAABAgAGBQJSXXF8AAoJEIXCXpWhbrlNXb8IAM04y0KtesGFT9vNjOES7MeJ WXDVqq3z2xf1gl3KbGfp5U0V67EL0vh538nxq2woS3dp7TPJX896lisMg6a3Y9fU Bn7+tVxCggTj9W6sBDI+j2vWH4x6j51NPNqebM/n52+Nu1zxqNUxkqzxIDzcaykm If/bdkUmJnd0hIZtqhX8p8wmoRBVnGqb1BPlAbpMV4Hg4gVupjWtGEHGSfDBBc+u IhSI3f+CNORffjnL3D/5pp/fyMrRXB8QkUsaNzFmjpgEmF1UZOv36SUmKwm0Rv+p Lkq7+AugdHJXVlJYyRdXGt+gF/j4QIkcDTSOsKaWGba6bx5Fgc8rGEahZfZvYfQ= =Ve1J -----END PGP SIGNATURE-----