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 debian-6-turnkey-codeigniter_12.1-1_i386.tar.gz.sig gpg: Signature made Tue Jun 4 20:19:22 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum f85d5f1d073d2e1bf7401b77060229449a4a9563 * md5sum f6221bf04d9c94b40c5be18310493568 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) iQEcBAABAgAGBQJRrkvBAAoJEIXCXpWhbrlNgIkH/1GP9fyIArsMO69DNgBrrUnT 2uZdyE3wIojZzxdOIwUhZf1I5eSXaKF/G161Yn7EqpdrzvcfHxI5ECMv9GLZZNzd iap+HHXMHA5cTAiMaIzJt1dsFNJtN8G5PPf4BWXfufRw8MK6oReRbGdXp23h31ks 9zWmNk/lgD7Hn4CO2lEAK1/gEpSXxKEmWilhSJQK+dqH7nrtsQd1thyTwM/FlYqu fXSckpZOQGC9GwpALrOsMmAVqNUtFdMVqSPLy3id5YmNPmbEBx0zWL1Tg20ntpvG vjR3Vw++WBJmgNjeP0zkyH9ZjyDdP0RpC50CDQPqe+cfu7EevtsErnBhnGbwrfY= =pDgL -----END PGP SIGNATURE-----