rails session security

http://www.javaeye.com/wiki/rails_weekly/1814-rails-questions-weekly-6-security-guide-one

http://andyhu1007.javaeye.com/blog/378622

http://www.javaeye.com/wiki/rails_weekly/1814-rails-questions-weekly-6-security-guide-one

http://blog.lxneng.com/?p=156