This is a Ruby gem that, given a message and a secret, produces a signature.

Openneo auth servers use this gem to sign messages they send to auth clients, and auth clients use this gem to sign the message they receive to make sure that they get the same signature. This confirms that the authentication message was sent by someone who knows the secret (in this case, the auth server), rather than some hacker trying to send his or her own fake message.

secret = '5ebe2294ecd0e0f08eab7690d2a6ee69'
signatory = Openneo::Auth::Signatory.new(secret)

message = {:foo => 1, :bar => 2}
signature = signatory.sign(message)

puts signature # => 22dc5ff40bcf9ece92f8b6cf6542b05750aea9379d27e048b32ec02a65e33641

Copyright (c) 2010 Matchu. See LICENSE for details.