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-gallery-12.1-squeeze-amd64.iso.sig gpg: Signature made Wed May 1 12:39:27 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 9d48f224f7dc7fb64244ad67b393d4fd01a27764 * md5sum 486296d30895dd8c314603a3c3d3fd1c 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 v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJRgQz2AAoJEIXCXpWhbrlNK/8IAOWWisgzq1n41dr+uvzrNQCG lpuE+yPqUsT5iW8Ap/e4VwXrxwp0n9u0/i5rTTWOAA7rb1jxeOmwZX9W49X8a6xx Rl26zfbdQ9neMa13eXtdngepi3iIwjqAPOGQVxnj8DH3vlEKyB1llbW9hV1ZA84J ZUYqhz5N9aFu5qVSllI5tNRRDkhLoEv/WG24cTp8pQ3eUuLc5ubp/FhAgVo4SAaq 33b+JLoRjvCg9HCwYnOS1Y5oAtZHeetIP6ndKf3so6IkW/isvZPyM+0FglSxPl6q i0cbxfp9WgZGSZ7Cs8MbihKWSn6qB03zq+ftxYX+AtcLAf563jrZGrOrWdAgfVY= =VLPi -----END PGP SIGNATURE-----