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-mantis_13.0-1_i386.tar.gz.sig gpg: Signature made Tue Oct 15 16:48:59 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 77cf02dc4986b6f233bc72bc23b952b1cd5c1f29 * md5sum a8f9e9245593f077c2ce9ca6eb2c6091 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) iQEcBAABAgAGBQJSXXH1AAoJEIXCXpWhbrlN+8oH/iGiZzk4aa/AsOXt1Mt+CAzz zfu+a3B8SSmVcNDZYsW4/qiMxWLOe8gwZQuE5SKOqA6d/9i0TyVuyg3hOgrFG6iH s9bNrvaE3ImNc8PSlsp78p/HGpbk4C3YJvC7GMgJ2txLNPitW2W45nNvbhUYSQ1O X90p+C8VR41GmzG5uLMJbJs/QrQ+82VdErNc8haI2uT+9wF5cMwP0Uy+d/idhyIB 0NdCS/5yTCIpLxKgcvg9NTLwMBGbcXWmjix8QSjsvVVyDC7+Wg7miaXJEKZm9vDY WCzjO/+X6Zgwm1ZG4z0oPz8w2Vk+IweZ9lng9ua7bdcYCYvb2AbS8Zp14zhRvXg= =p0Cq -----END PGP SIGNATURE-----