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-sahana-eden-13.0-wheezy-i386.iso.sig gpg: Signature made Mon Oct 14 18:59:49 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum e162efdb85d7af8dbd646c49147715da07b2f493 * md5sum 3d4cdfb34bf8d5b642401fd3100fd3b2 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) iQEcBAABAgAGBQJSXD8XAAoJEIXCXpWhbrlNevEH/RINiPaNupGwtSkAyaksjaOs hVuSTx5oyLiprop8RkjMHDmo8/EKLDzLf72uD3KwNWfIEoDUpgHru7ilgEX03p/G t4sU1sgJJgOBBtafcy0TL/bZsETtn/mi+mlKI599kbtJDjUHeQNPSp5ffA4N6xie /Ova6U5yGPwomQ7cTv+uR9WHCaymxxwz9jvQ86Q47zod1cPhR7hm3e4NSE/kdz9E 1xzJ0N7RmXhjUkhewQ5IPO+9KUWFBE1+FsxqVsWzRF4+OQ38bulqyHclwdOQVyq7 Yx3McALDjbgiH5YJ58qc9Fg6Jkwg2qsk5/SH2pCS1ufmzlFQdJugkj73sxYrHJI= =jSSc -----END PGP SIGNATURE-----