Errors

consistent_version
0.06,0.21
valid_signature
Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Thu 04 Jul 2013 07:43:10 AM JST
gpg:                using DSA key 31F9562596406EA0
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==