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-openldap-13.0rc3-wheezy-amd64.iso.sig gpg: Signature made Fri Sep 13 08:35:49 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum aa3e9ff3690b6135fa78c4147e35318520cc00fd * md5sum 8e8c71242f0c189c6d07f80d920c0189 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) iQEcBAABAgAGBQJSMs5gAAoJEIXCXpWhbrlNfN4H/jb57APQsvxz5P+SguSJ9OOP RJ49EfMogR6vdbohyTyGA1aKJ3Gb1h1wTsTArCiktNxghpkt9jalc7dK20KtDdFH VPX/HpLE7udFzE9dQx+Ssoxe/F47ULHBO6FBFfEC+ZWHbEUcSiQpdqpxp/kNJR8W gCIABgwEvFQwCiKTvI0P1pwJbXyvRtPUHMmRht/I0SfI6uRM6yXDhk7OrZBz1Yrx pm1v0ZAHs137EfqEbt8Zcbv/nLGbEo3ynIDJHnvo4x6v7a9xLPOsRq8vINNf88ZX S1PfZJeBdTAGSEZwX7g4ebebZVZParY/Pxwubl/6io8mPxNF0U0csAd5I6u/I9k= =MFSl -----END PGP SIGNATURE-----