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-canvas-12.0-squeeze-x86-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 15:24:29 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum 0b2b5d4a5ce48b36cbeabd8ee9d36b46e71a01a8 * md5sum 66e29633950d94e274cd65d94b359f9a 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) iQEcBAABAgAGBQJQM6gdAAoJEIXCXpWhbrlNxCIIALe4XJtLbIneAX+69Q0DZOoH AgFsNfNccmbhvkevtFhlsLV3MriuBkkiFKoJAZ/+rsY2mKi5nl2ZvYxLRLHytHMt G9biFcK90/2RdRadekMqVZDqNe39ifb/T5wt/gwZl+f8qf5OAQU5LDAOT1hHhbYM gZ+bsW4+AxVTu4QeL1CO0lHdyD7OmYqW4sGE/7pTNRSaNGLPx7fUHUYeOqyiLn7x 9eKHTc0ikZ+a+/QGNi56o3aMw6EVcFvz4L0XwCxO4y+Xp7lL4ipJqyRGEHeEqqHJ ufG91yVfRhXuoYxBIpJ9EYd1eb8CovwxU1IDlfmPpIl3Qov1G9aIToNIxoeu/F8= =YpgT -----END PGP SIGNATURE-----