diff --git a/web/backend/config.sample.json b/web/backend/config.sample.json
index f94bf6a..be34908 100644
--- a/web/backend/config.sample.json
+++ b/web/backend/config.sample.json
@@ -16,6 +16,7 @@
     "MNT": "YOUR-MNT", // your MNT tag
     "listen": "0.0.0.0",
     "port": 8042, 
+    "domain": "example.org", // domain to use for kioubit verification service
     "flask-secret-key": "<secret-please-replace>", // secret key for session cookies
     "flask-debug": false, // optional; default false
     "flask-template-dir": "../frontend/" // optional; default "../frontend"
diff --git a/web/backend/kioubit_verify.py b/web/backend/kioubit_verify.py
index 371cf9d..fc8a031 100644
--- a/web/backend/kioubit_verify.py
+++ b/web/backend/kioubit_verify.py
@@ -35,9 +35,10 @@ class AuthVerifyer ():
         #, base64.b64decode(params), "sha512")
         h = SHA512.new()
         h.update(base64.b64decode(params))
-        print(h.hexdigest())
+        #print(h.hexdigest())
         verifier = DSS.new(self.pubkey, 'fips-186-3')
-        print(verifier.verify(h, signature))
+        valid = verifier.verify(h, signature)
+        return valid
 
 if __name__ == "__main__":
     example_com_verifier = AuthVerifyer("example.com")
diff --git a/web/backend/main.py b/web/backend/main.py
index 1e552e9..296d167 100644
--- a/web/backend/main.py
+++ b/web/backend/main.py
@@ -1,9 +1,11 @@
 #! /usr/bin/env python3
 
 from flask import Flask, Response, redirect, render_template, request, session, abort
-import json, os
+import json, os, base64
 from functools import wraps
 
+import kioubit_verify
+
 app = Flask(__name__)
 
 class Config (dict):
@@ -40,6 +42,7 @@ class Config (dict):
         print(self._config)
 
 config = Config()
+
 def auth_required():
     def wrapper(f):
         @wraps(f)
@@ -52,6 +55,15 @@ def auth_required():
     return wrapper
 
 
+kverifyer = kioubit_verify.AuthVerifyer(config["domain"])
+@app.route("/api/auth/kverify", methods=["GET", "POST"])
+def kioubit_auth():
+    params = request.args["params"]
+    signature = request.args["signature"]
+    print(base64.b64decode(params))
+    return str(kverifyer.verify(params, signature))
+
+
 @app.route("/login",methods=["GET","POST"])
 def login():
     if request.method == "GET":
diff --git a/web/frontend/login.html b/web/frontend/login.html
index 631cb3b..e5df8aa 100644
--- a/web/frontend/login.html
+++ b/web/frontend/login.html
@@ -4,7 +4,7 @@
 
 <form action="https://dn42.g-load.eu/auth/">
     <link rel="stylesheet" href="https://dn42.g-load.eu/auth/assets/button-font/auth.css"> 
-    <input type="hidden" id="return" name="return" value="{{return_addr}}">
+    <input type="hidden" id="return" name="return" value='{{"http://"+config["domain"]+"/api/auth/kverify"}}'>
     <button type="submit" class="kioubit-btn kioubit-btn-primary kioubit-btn-dark kioubit-btn-main">
     <span class="icon-kioubit-auth"></span>Authenticate with Kioubit.dn42
     </button>