diff --git a/app/controllers/saml_logins_controller.rb b/app/controllers/saml_logins_controller.rb
new file mode 100644
index 0000000..8a999cf
--- /dev/null
+++ b/app/controllers/saml_logins_controller.rb
@@ -0,0 +1,34 @@
+class SamlLoginsController < ApplicationController
+
+  require "net/http"
+  require "uri"
+  require 'rexml/document'
+  include REXML
+
+  def index 
+  
+    if params[:wa] == "wsignoutcleanup1.0" #logout
+
+      redirect_to :root
+
+    else  #login
+
+
+    @wresult = params[:wresult]
+    @wctx = params[:wctx]
+
+    @main_url = LIST[:sites][@wctx]['url']
+    @main_public_key = LIST[:sites][@wctx]['key']
+
+    @doc = REXML::Document.new @wresult
+    
+    public_key = OpenSSL::PKey::RSA.new(@main_public_key)
+    encrypted_data = public_key.public_encrypt(@doc.elements["//saml:AttributeValue"].text)
+    
+    redirect_to "http://#{@main_url}/user_login?" + { :wresult => encrypted_data }.to_param
+
+   end
+
+  end
+
+end
diff --git a/config/list.yml b/config/list.yml
index b9722e7..b12a31d 100644
--- a/config/list.yml
+++ b/config/list.yml
@@ -80,3 +80,27 @@ default_widget_style:
   - style3
   - style4
   - style5
+
+sites:
+  coph:
+    url: coph.ntu.edu.tw
+    key: "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzpqn0cXyC98jZ2hk4F8W\n0K7qgNSqHvH8unxCbgEuxWvkUA1ld2NMfsj9fTl9f2UlhPtwiaZchVAFSDjpYeQD\nH3A5XtlonUXfTD5XdnKBvk6WtKl7cFuyhIazcxp3MA8/cmSuGbXIjyZLMiUkElZg\n5CZ/1n+yhGFjXQz/d4d8W7sN7AjmhHjTi5vgJF4fkaSr1g6TwWJfLhhzzYsva2z/\nDRkQl3OpUEbSQP1X9/RmManDrYpn7Wrqi9Joqu7rPk0Grki8lCo5T/kaEsQ0wKte\nt7N9QRCBM/f2tOYoH+elitnOJq9zAtAtGaw80xso/GkjMHhcmPnI2YZ90yy1Fvau\nOwIDAQAB\n-----END PUBLIC KEY-----\n"
+  dph:
+    url: dph.ntu.edu.tw
+    key: "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0wNXuqsY6iHiPORSA+M1\nQzzoepGnJGSP92VszqTp7M+rDf6R98J+jFzG4YkMMUaFids4sXTwVp3zfgmhfl5k\nLJiufcXk9U5HYQ5b88kW+8BOAj9GBMQ7tDTw5hkFGL98anAAxZgW/FVovlAr3jv7\nei5/MBRPwctuOYhR4s9Mh47tbCnMFOswyjErEp5OfkbTo+qar44f2m4d1RVPTM1k\n0RCU65+0syw+hYgg01yRuWkSNzHie5FOVD7CujWeTD2CVZFh72kaGLp99ExOtrM3\n7AzS8duVmty/f7RG8DiJdB4a/mcHjcanlBLcowoo3FaaA1Arg1DkdjH0zwB2UVMs\nEQIDAQAB\n-----END PUBLIC KEY-----\n"
+  ntuhpm:
+    url: ntuhpm.ntu.edu.tw
+    key: "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAq/kK75YjD3Yvv9wacE0+\ncImWxnVcVFXhtG5T8Hm0tkit3OroJ2BobWHe23QBThnzXCF4+S1XosYw60XPNAKk\nrmImHry9lG2iz/UfXwj49AfMHOw0tpOcf2UHiVAZUKb9zZRAEDL6WbhVQ5C/9jZ1\nKWtrcArRxck1tivgT5tUaKrCHrnj9/jo6eAHiKg0CsEfS0hlXQFfo7/2kBZc0oBq\ntuVyoDADaY1PoyvqzHxZC3eyUTjURVa0+Lkpw9d9jbSUNnf2XfEi51Rt79PlrtNj\naxsQ2UKhz0xYouTXQPt9Mc+vxow9bvd1CPr52ywX37sjRlmOQ4gpcxEPa21bRevW\nwwIDAQAB\n-----END PUBLIC KEY-----\n"
+  epm:
+    url: epm.ntu.edu.tw
+    key: "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0pl5F02WcZC+YLDuowl7\nE2VbgXS/V4R1/pRryGCkuZFBQ5DRw6055dhDp8lribEUYRTk8Y8EUIM+8A1A80Y1\nJqaAhF/ZUE7Io1boqdf0XeRgAmQF4bCphLCSVTz6v2AeAQaS7btUqrLr3t7Ldbso\nbnXQ8qKxsBGTtuvIID5zx2JyRuO1U740KEbt7l5Nnb6zSYYHayOHzsS4FS4HmCa/\nK+1jQcnpis1k7tp/s3tif/9a8t4IjwuxyKI6PEUoyGTZYG9hyrTvoTGobR9g+r6s\n8IluoAauG6IlSjl92sL6D6p+BYS3VsFn+2mznrjgKl9TVt8HfQSgECgfyUAS/OgC\n3wIDAQAB\n-----END PUBLIC KEY-----\n"
+  ieh:
+    url: ieh.ntu.edu.tw
+    key: "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvtmUdzHwAE+b1Bt2HGSr\ny/o8rA4fWIpc9zTn4jXkAoH7yQMO0WsneMn1KxE0eUmhHiGaZGQLGrixxQ9ZG9DP\n1fe41IGRKZRt7ep5rpXQFCXxEwBV+CAmdVpwGM0ji3l9tL4CwKkX+ObmUiorQZLG\nAxQHAWpFdM7foiTNw37vqTm8TDIcCu0HXSV+Mb6IydbpQbvYTHdHN2wlgfIa41qU\nWhYqHckKimvApJCsIDHd8ZF32EuOaalfGFvYB7de7Z1Tn9YLvIqgPgIj6o89q4UK\n5EAr1E6kKX9jk3ru5r0u/EEL0zADdbJAWuops4a+XRdPaZMXqngdlEbcxwKTryU+\ncwIDAQAB\n-----END PUBLIC KEY-----\n"
+  omih:
+    url: omih.ntu.edu.tw
+    key: "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwgyfe4FFBnE6If3TH/L7\nVm43BYEunoK6ItBC9VccUGrhT3ZD5gAdnNC5OkR8HIUEBxtzvD57CsHaaGKrxxAf\nd8XJh5nXZCg5RaoQVaBNjFBmOPm4jZAWPUFPuGRow8Uzs/LzA5HNew196g+qWayB\nglTyX2TJUAADyx6Peq4ZNqEBBB68n4DyugXzfvlk0yXsrLDtbM44bzOhRuosKa7Y\nung+IonA5lqr2mJDrTMDOupIAgW6/4xO7ww2e/pMOVtfoVSw+5YfXFBGCbRjGKwT\nZ4b7whRBBuRd1lgWhQrzOikb+/NtEVQWLpWPpSeTFx5sIUyb5PmQTXtRxZX1xNcS\neQIDAQAB\n-----END PUBLIC KEY-----\n"
+  mph:
+    url: mph.ntu.edu.tw
+    key: "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7rlich0iWAWKUhT7pHji\nOHeEURjnykiX5ElkBD7twy5UyagiD9wVeBOi7mElaJjcR84WfoZVTJVbI08/a5KY\neFURiOy4CigwIFyiDKhwMH5XETuQD96JFqClZGgfxaZAtt9IEpqE3HbqGpPh/0Oc\noLP6Pez8icDYqShZrrZioQZ9XshlZJ6Xt2iStMHNucKHrptMylvtHo6sp/Uy00jC\nubbtH7cvAbQf/Ee/jbGWWMyVwjko1h8u1pMtQlXIC6R0UP6yfCAg7c/0P9eb33OE\n2B6t9i/7kdqTysyKvf6jdDeJeyDYxZVFFXEETu5TzffdhrEK67KAot3J3hi0Qwq7\nvQIDAQAB\n-----END PUBLIC KEY-----\n"
+
diff --git a/config/routes.rb b/config/routes.rb
index b68f8b0..61d2b28 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -13,6 +13,8 @@ Orbit::Application.routes.draw do
     match 'user_logout' => 'sessions#destroy'
   end
 
+  match "saml_login" => 'saml_logins#index'
+
   mount Resque::Server, :at => "/admin/resque"
   mount Rack::GridFS::Endpoint.new(:db => Mongoid.database,:lookup=>:path), :at => "gridfs"