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-punbb_12.1-1_amd64.tar.gz.sig gpg: Signature made Tue Jun 4 15:31:26 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 063001b6b0469f7f138562c9c1dec00deff6f2d9 * md5sum 631111336da898b5dfa519961a507a54 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) iQEcBAABAgAGBQJRrghIAAoJEIXCXpWhbrlNPhcH/0AoCCfGcoCoR69dE8NvIYAj MH/zoapuj/jmlU/+KVdDAbmwwI2kerNJES3f53aMmqed9KnyRkajkI+QUZcOdzry Rm1Mtmc/maRMGer4U9+R3ceE+9xHXY+EZM8jde1Zc0tYBDLGt3sO0cvO0CuR5o1+ cfqx84kt7HK68cA8nYMBCkxS76WghF7JpzYAHPYitUZAFW6hJ+2Z6GuDkJva6eS6 bMhl1Zw59u+ud/grMsVOUk0hxdxmfwkWlNQP9O0qUQdkbCVN9o+pGKkdVU6MiO1m HHm1TBWMbUgHtZq/kLi6JPyzwYQ60hGojO/HJKI2T8fv+pFmij/a/Augii2yasU= =2ULb -----END PGP SIGNATURE-----