diff --git a/src/lib/routes.js b/src/lib/routes.js
deleted file mode 100644
index b2c9f3b2..00000000
--- a/src/lib/routes.js
+++ /dev/null
@@ -1,39 +0,0 @@
-
-var first_factor = require('./routes/FirstFactor');
-var second_factor = require('./routes/second_factor');
-var reset_password = require('./routes/reset_password');
-var verify = require('./routes/verify');
-var u2f_register_handler = require('./routes/u2f_register_handler');
-var totp_register = require('./routes/totp_register');
-var objectPath = require('object-path');
-
-module.exports = {
-  login: serveLogin,
-  logout: serveLogout,
-  verify: verify,
-  first_factor: first_factor,
-  second_factor: second_factor,
-  reset_password: reset_password,
-  u2f_register: u2f_register_handler,
-  totp_register: totp_register,
-}
-
-function serveLogin(req, res) {
-  if(!(objectPath.has(req, 'session.auth_session'))) {
-    req.session.auth_session = {};
-    req.session.auth_session.first_factor = false;
-    req.session.auth_session.second_factor = false;
-  }
-  res.render('login');
-}
-
-function serveLogout(req, res) {
-  var redirect_param = req.query.redirect;
-  var redirect_url = redirect_param || '/';
-  req.session.auth_session = {
-    first_factor: false,
-    second_factor: false
-  }
-  res.redirect(redirect_url);
-}
-
diff --git a/src/lib/routes.ts b/src/lib/routes.ts
new file mode 100644
index 00000000..1446fa59
--- /dev/null
+++ b/src/lib/routes.ts
@@ -0,0 +1,41 @@
+
+import FirstFactor = require("./routes/FirstFactor");
+import second_factor = require("./routes/second_factor");
+import reset_password = require("./routes/reset_password");
+import AuthenticationValidator = require("./routes/AuthenticationValidator");
+import u2f_register_handler = require("./routes/u2f_register_handler");
+import totp_register = require("./routes/totp_register");
+import objectPath = require("object-path");
+
+import express = require("express");
+
+export = {
+  login: serveLogin,
+  logout: serveLogout,
+  verify: AuthenticationValidator,
+  first_factor: FirstFactor,
+  second_factor: second_factor,
+  reset_password: reset_password,
+  u2f_register: u2f_register_handler,
+  totp_register: totp_register,
+};
+
+function serveLogin(req: express.Request, res: express.Response) {
+  if (!(objectPath.has(req, "session.auth_session"))) {
+    req.session.auth_session = {};
+    req.session.auth_session.first_factor = false;
+    req.session.auth_session.second_factor = false;
+  }
+  res.render("login");
+}
+
+function serveLogout(req: express.Request, res: express.Response) {
+  const redirect_param = req.query.redirect;
+  const redirect_url = redirect_param || "/";
+  req.session.auth_session = {
+    first_factor: false,
+    second_factor: false
+  };
+  res.redirect(redirect_url);
+}
+
diff --git a/src/lib/routes/AuthenticationValidator.ts b/src/lib/routes/AuthenticationValidator.ts
new file mode 100644
index 00000000..38b861da
--- /dev/null
+++ b/src/lib/routes/AuthenticationValidator.ts
@@ -0,0 +1,43 @@
+
+import objectPath = require("object-path");
+import BluebirdPromise = require("bluebird");
+import express = require("express");
+
+function verify_filter(req: express.Request, res: express.Response) {
+  const logger = req.app.get("logger");
+
+  if (!objectPath.has(req, "session.auth_session"))
+    return BluebirdPromise.reject("No auth_session variable");
+
+  if (!objectPath.has(req, "session.auth_session.first_factor"))
+    return BluebirdPromise.reject("No first factor variable");
+
+  if (!objectPath.has(req, "session.auth_session.second_factor"))
+    return BluebirdPromise.reject("No second factor variable");
+
+  if (!objectPath.has(req, "session.auth_session.userid"))
+    return BluebirdPromise.reject("No userid variable");
+
+  const host = objectPath.get<express.Request, string>(req, "headers.host");
+  const domain = host.split(":")[0];
+
+  if (!req.session.auth_session.first_factor ||
+    !req.session.auth_session.second_factor)
+    return BluebirdPromise.reject("First or second factor not validated");
+
+  return BluebirdPromise.resolve();
+}
+
+export = function(req: express.Request, res: express.Response) {
+  verify_filter(req, res)
+    .then(function () {
+      res.status(204);
+      res.send();
+    })
+    .catch(function (err) {
+      req.app.get("logger").error(err);
+      res.status(401);
+      res.send();
+    });
+};
+
diff --git a/src/lib/routes/verify.js b/src/lib/routes/verify.js
deleted file mode 100644
index 1b40649b..00000000
--- a/src/lib/routes/verify.js
+++ /dev/null
@@ -1,44 +0,0 @@
-
-module.exports = verify;
-
-var objectPath = require('object-path');
-var BluebirdPromise = require('bluebird');
-
-function verify_filter(req, res) {
-  var logger = req.app.get('logger');
-
-  if(!objectPath.has(req, 'session.auth_session'))
-    return BluebirdPromise.reject('No auth_session variable');
-
-  if(!objectPath.has(req, 'session.auth_session.first_factor'))
-    return BluebirdPromise.reject('No first factor variable');
-
-  if(!objectPath.has(req, 'session.auth_session.second_factor'))
-    return BluebirdPromise.reject('No second factor variable');
-
-  if(!objectPath.has(req, 'session.auth_session.userid'))
-    return BluebirdPromise.reject('No userid variable'); 
-
-  var host = objectPath.get(req, 'headers.host');
-  var domain = host.split(':')[0]; 
-
-  if(!req.session.auth_session.first_factor || 
-     !req.session.auth_session.second_factor)
-    return BluebirdPromise.reject('First or second factor not validated');
- 
-  return BluebirdPromise.resolve();
-}
-
-function verify(req, res) {
-  verify_filter(req, res)
-  .then(function() {
-    res.status(204);
-    res.send();
-  })
-  .catch(function(err) {
-    req.app.get('logger').error(err);
-    res.status(401);
-    res.send();
-  });
-}
-
diff --git a/test/unitary/mocks/express.ts b/test/unitary/mocks/express.ts
index 31aec299..009cb4a3 100644
--- a/test/unitary/mocks/express.ts
+++ b/test/unitary/mocks/express.ts
@@ -1,17 +1,51 @@
 
 import sinon = require("sinon");
+import express = require("express");
 
 export interface RequestMock {
     app?: any;
     body?: any;
     session?: any;
     headers?: any;
+    get?: any;
 }
 
 export interface ResponseMock {
     send: sinon.SinonStub | sinon.SinonSpy;
+    sendStatus: sinon.SinonStub;
+    sendFile: sinon.SinonStub;
+    sendfile: sinon.SinonStub;
     status: sinon.SinonStub;
     json: sinon.SinonStub;
+    links: sinon.SinonStub;
+    jsonp: sinon.SinonStub;
+    download: sinon.SinonStub;
+    contentType: sinon.SinonStub;
+    type: sinon.SinonStub;
+    format: sinon.SinonStub;
+    attachment: sinon.SinonStub;
+    set: sinon.SinonStub;
+    header: sinon.SinonStub;
+    headersSent: boolean;
+    get: sinon.SinonStub;
+    clearCookie: sinon.SinonStub;
+    cookie: sinon.SinonStub;
+    location: sinon.SinonStub;
+    redirect: sinon.SinonStub;
+    render: sinon.SinonStub;
+    locals: sinon.SinonStub;
+    charset: string;
+    vary: sinon.SinonStub;
+    app: any;
+    write: sinon.SinonStub;
+    writeContinue: sinon.SinonStub;
+    writeHead: sinon.SinonStub;
+    statusCode: number;
+    statusMessage: string;
+    setHeader: sinon.SinonStub;
+    setTimeout: sinon.SinonStub;
+    sendDate: boolean;
+    getHeader: sinon.SinonStub;
 }
 
 export function RequestMock(): RequestMock {
@@ -25,6 +59,38 @@ export function ResponseMock(): ResponseMock {
     return {
         send: sinon.stub(),
         status: sinon.stub(),
-        json: sinon.stub()
+        json: sinon.stub(),
+        sendStatus: sinon.stub(),
+        links: sinon.stub(),
+        jsonp: sinon.stub(),
+        sendFile: sinon.stub(),
+        sendfile: sinon.stub(),
+        download: sinon.stub(),
+        contentType: sinon.stub(),
+        type: sinon.stub(),
+        format: sinon.stub(),
+        attachment: sinon.stub(),
+        set: sinon.stub(),
+        header: sinon.stub(),
+        headersSent: true,
+        get: sinon.stub(),
+        clearCookie: sinon.stub(),
+        cookie: sinon.stub(),
+        location: sinon.stub(),
+        redirect: sinon.stub(),
+        render: sinon.stub(),
+        locals: sinon.stub(),
+        charset: "utf-8",
+        vary: sinon.stub(),
+        app: sinon.stub(),
+        write: sinon.stub(),
+        writeContinue: sinon.stub(),
+        writeHead: sinon.stub(),
+        statusCode: 200,
+        statusMessage: "message",
+        setHeader: sinon.stub(),
+        setTimeout: sinon.stub(),
+        sendDate: true,
+        getHeader: sinon.stub()
     };
 }
diff --git a/test/unitary/routes/AuthenticationValidator.test.ts b/test/unitary/routes/AuthenticationValidator.test.ts
new file mode 100644
index 00000000..8d54c359
--- /dev/null
+++ b/test/unitary/routes/AuthenticationValidator.test.ts
@@ -0,0 +1,110 @@
+
+import assert = require("assert");
+import AuthenticationValidator = require("../../../src/lib/routes/AuthenticationValidator");
+import sinon = require("sinon");
+import winston = require("winston");
+
+import express = require("express");
+
+import ExpressMock = require("../mocks/express");
+import AccessControllerMock = require("../mocks/AccessController");
+
+describe("test authentication token verification", function () {
+  let req: ExpressMock.RequestMock;
+  let res: ExpressMock.ResponseMock;
+  let accessController: AccessControllerMock.AccessControllerMock;
+
+  beforeEach(function () {
+    accessController = AccessControllerMock.AccessControllerMock();
+    accessController.isDomainAllowedForUser.returns(true);
+
+    req = ExpressMock.RequestMock();
+    res = ExpressMock.ResponseMock();
+    req.headers = {};
+    req.headers.host = "secret.example.com";
+    req.app.get = sinon.stub();
+    req.app.get.withArgs("config").returns({});
+    req.app.get.withArgs("logger").returns(winston);
+    req.app.get.withArgs("access controller").returns(accessController);
+  });
+
+  interface AuthenticationSession {
+    first_factor?: boolean;
+    second_factor?: boolean;
+    userid?: string;
+    groups?: string[];
+  }
+
+  it("should be already authenticated", function (done) {
+    req.session = {};
+    req.session.auth_session = {
+      first_factor: true,
+      second_factor: true,
+      userid: "myuser",
+    } as AuthenticationSession;
+
+    res.send = sinon.spy(function () {
+      assert.equal(204, res.status.getCall(0).args[0]);
+      done();
+    });
+
+    AuthenticationValidator(req as express.Request, res as any);
+  });
+
+  describe("given different cases of session", function () {
+    function test_session(auth_session: AuthenticationSession, status_code: number) {
+      return new Promise(function (resolve, reject) {
+        req.session = {};
+        req.session.auth_session = auth_session;
+
+        res.send = sinon.spy(function () {
+          assert.equal(status_code, res.status.getCall(0).args[0]);
+          resolve();
+        });
+
+        AuthenticationValidator(req as express.Request, res as any);
+      });
+    }
+
+    function test_unauthorized(auth_session: AuthenticationSession) {
+      return test_session(auth_session, 401);
+    }
+
+    function test_authorized(auth_session: AuthenticationSession) {
+      return test_session(auth_session, 204);
+    }
+
+    it("should not be authenticated when second factor is missing", function () {
+      return test_unauthorized({
+        userid: "user",
+        first_factor: true,
+        second_factor: false
+      });
+    });
+
+    it("should not be authenticated when first factor is missing", function () {
+      return test_unauthorized({ first_factor: false, second_factor: true });
+    });
+
+    it("should not be authenticated when userid is missing", function () {
+      return test_unauthorized({
+        first_factor: true,
+        second_factor: true,
+        groups: ["mygroup"],
+      });
+    });
+
+    it("should not be authenticated when first and second factor are missing", function () {
+      return test_unauthorized({ first_factor: false, second_factor: false });
+    });
+
+    it("should not be authenticated when session has not be initiated", function () {
+      return test_unauthorized(undefined);
+    });
+
+    it("should not be authenticated when session is partially initialized", function () {
+      return test_unauthorized({ first_factor: true });
+    });
+  });
+});
+
diff --git a/test/unitary/routes/test_verify.js b/test/unitary/routes/test_verify.js
deleted file mode 100644
index a3b7710a..00000000
--- a/test/unitary/routes/test_verify.js
+++ /dev/null
@@ -1,101 +0,0 @@
-
-var assert = require('assert');
-var verify = require('../../../src/lib/routes/verify');
-var sinon = require('sinon');
-var winston = require('winston');
-
-describe('test authentication token verification', function() {
-  var req, res;
-  var config_mock;
-  var acl_matcher;
-
-  beforeEach(function() {
-    acl_matcher = {
-      is_domain_allowed: sinon.stub().returns(true)
-    };
-    var access_control = {
-      matcher: acl_matcher
-    }
-    config_mock = {};
-    req = {};
-    res = {};
-    req.headers = {};
-    req.headers.host = 'secret.example.com';
-    req.app = {};
-    req.app.get = sinon.stub();
-    req.app.get.withArgs('config').returns(config_mock);
-    req.app.get.withArgs('logger').returns(winston);
-    req.app.get.withArgs('access control').returns(access_control);
-    res.status = sinon.spy();
-  });
-
-  it('should be already authenticated', function(done) {
-    req.session = {};
-    req.session.auth_session = {
-      first_factor: true, 
-      second_factor: true,
-      userid: 'myuser',
-      allowed_domains: ['*']
-    };
- 
-    res.send = sinon.spy(function() {
-      assert.equal(204, res.status.getCall(0).args[0]);
-      done();
-    });
-
-    verify(req, res);
-  });
-
-  describe('given different cases of session', function() {
-    function test_session(auth_session, status_code) {
-      return new Promise(function(resolve, reject) {
-        req.session = {};
-        req.session.auth_session = auth_session;
- 
-        res.send = sinon.spy(function() {
-          assert.equal(status_code, res.status.getCall(0).args[0]);
-          resolve();
-        });
-
-        verify(req, res);
-      });
-    }
-
-    function test_unauthorized(auth_session) {
-      return test_session(auth_session, 401);
-    }
-
-    function test_authorized(auth_session) {
-      return test_session(auth_session, 204);
-    }
-
-    it('should not be authenticated when second factor is missing', function() {
-      return test_unauthorized({ first_factor: true, second_factor: false });
-    });
-
-    it('should not be authenticated when first factor is missing', function() {
-      return test_unauthorized({ first_factor: false, second_factor: true });
-    });
-
-    it('should not be authenticated when userid is missing', function() {
-      return test_unauthorized({ 
-        first_factor: true, 
-        second_factor: true,
-        group: 'mygroup',
-      });
-    });
-
-    it('should not be authenticated when first and second factor are missing', function() {
-      return test_unauthorized({ first_factor: false, second_factor: false });
-    });
-
-    it('should not be authenticated when session has not be initiated', function() {
-      return test_unauthorized(undefined);
-    });
-
-    it('should not be authenticated when session is partially initialized', function() {
-      return test_unauthorized({ first_factor: true });
-    });
-  });
-});
-