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-movabletype-12.0-squeeze-x86-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 16:14:57 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum d7b5f9ed6515614c25f63dc0331786556e32032c * md5sum ae8096c5d07a571fd5279f0e01e48659 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) iQEcBAABAgAGBQJQM7P3AAoJEIXCXpWhbrlNWWoH/0e+FMDxKlobhAFPPYea6fr2 8P/G7kg0EWpmIqOqFmVYIRMysRMVYvETwfz7i3TvHa4dKz8BPKVZa8GMd/ivnozd dpXomcCl55yxf09fvZKOKp75HKdztYqfOqjz+1HejbFC0n0LG0ubAyE3hlE7PXOX j8stOaOW9N3VzvkU66NhxfaSbWlK9ASo/QUnzDDKrvBivbcxT7Q+yf3ngpuY9yex UPzd1jMFie3A6Y3IkecM6wOD1npNbVVutifxOjFCSIQzADiyZV0vP/MMMWxqvmg7 /mETm0Sst7fap89hFXn6EM+eEd/N5MKTu7VIT8NWM3Tfp7NGQ8QBe5lD6kPk5Es= =dXoA -----END PGP SIGNATURE-----