Welcome to RoRtechie.com This gem provides very simple integration of Cybersource with Spree. Include the gem into your Gemfile as follows
gem "spree_cybersource_gateway", :path => "../spree_cybersource_gateway"
Then
bundle install
To complete the implementation
Register or login with test account https://ebctest.cybersource.com/ Navigate to Account Management > Transaction Security Keys > Security Keys for the SOAP Toolkit API Click on Generate Key and copy that into wordpad.
Now login to spree as admin and navigate to admin > Configuration > Payment Methods > New payment method You should see Gateway::CyberSource within dropdown for provider.
Select the same, it shall now ask for username and password. Enter username which is used for the cybersource. The key generated is the password
Copyright (c) 2011 [Jay @ Rortechie], released under the New BSD License