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-12.0-squeeze-x86.iso.sig gpg: Signature made Sat Aug 18 17:07:05 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 0c6be05e147f91e0a3cb946c786e930725ca0c95 * md5sum 8554f76448a80f14b0b47944e987278d 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) iQEcBAABAgAGBQJQL8uuAAoJEIXCXpWhbrlNiFcH/22mHYEvt3tCElDzhX/pstYY zUoe4gkIpGGlSrXInYDFZQwmcGQMyd5fGdoAnuhBAHOsGO4xF3Y2g8Mfv9hVWRij rOVR4ZYPE3KkfV0jkvyaVSoxOY/BJgxD5kLC5hW65hW584xjvk4MwZ/vo2ILVohI jfUVzB3ry54/0AORs0hY/SfMW1nrsdRB4Ai7ybhFk8VmuPKHLKa7wIvZSwB6RhgZ l7QhzhCWqzWRP3Jd0x5CylpLKFfEtSWdC8W9RSiRK7ZNFIeRV+0Tc4M/gk0BkZ30 QZBJxNmuSaKEA1MFDIP0Frvecea2czIt5e5ajWT27PP8G965KNkiBtu++YcZsCY= =tVBl -----END PGP SIGNATURE-----