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-cakephp-12.1-squeeze-i386-xen.tar.bz2.sig gpg: Signature made Tue Jun 4 20:04:25 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum ed272bf9710c0cc1bcabeb01194ac118ea28e48c * md5sum 514df487d22533435bed114b41d913bd 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) iQEcBAABAgAGBQJRrkhAAAoJEIXCXpWhbrlNN74H/3G0KHWNqvRLny5faKUjkPu/ L/pfXM99hCo5JkCBHKFCaHbXjCIIeObWOMHZ+nKGJtJcja/289ZtOJP+ZBcNcNYz 55DXQFOVnFKI4YXEgKJy2w2qohy0dkzDVf7HyYoGgtHl+t5E0CAl2gdN/5hGRCFo MMx2Hiw3JUW1FPDla3YfhJqy/VPQXnpIwC/L3Mfg1cFme4s2xllcCR0RN2d0xIuQ 45LsmGll8Iix5QYoT2HIKAOX61EihvA8niS1SYQ7j1iwlT2D8/MjLyNp2MWLdCTV EgTfLN4TwzWwyZoFLb5mdSyiic6I33YI5fxqdpYnIyaqf7q8KckjMaqLAifzKhE= =PL2O -----END PGP SIGNATURE-----