Errors

use_warnings
BlueCoat::SGOS
valid_signature
Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Wed 29 Feb 2012 11:45:58 AM JST
gpg:                using RSA key BE21CD06D9621D6A
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==