# File lib/merb-auth-more/mixins/salted_user/relaxdb_salted_user.rb, line 25
        def authenticate(login, password)
          login_param = Merb::Authentication::Strategies::Basic::Base.login_param
          @u = all.sorted_by(login_param) { |q| q.key(login) }.first
          @u && @u.authenticated?(password) ? @u : nil
        end