move everything into bitmask namespace

8 files changed, 1507 insertions, 0 deletions

diff --git a/src/leap/bitmask/crypto/tests/__init__.py b/src/leap/bitmask/crypto/tests/__init__.py
new file mode 100644
index 00000000..7f118735
--- /dev/null
+++ b/src/leap/bitmask/crypto/tests/__init__.py
@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+# __init__.py
+# Copyright (C) 2013 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
diff --git a/src/leap/bitmask/crypto/tests/eip-service.json b/src/leap/bitmask/crypto/tests/eip-service.json
new file mode 100644
index 00000000..24df42a2
--- /dev/null
+++ b/src/leap/bitmask/crypto/tests/eip-service.json
@@ -0,0 +1,43 @@
+{
+  "gateways": [
+    {
+      "capabilities": {
+        "adblock": false, 
+        "filter_dns": false, 
+        "limited": true, 
+        "ports": [
+          "1194", 
+          "443", 
+          "53", 
+          "80"
+        ], 
+        "protocols": [
+          "tcp", 
+          "udp"
+        ], 
+        "transport": [
+          "openvpn"
+        ], 
+        "user_ips": false
+      }, 
+      "host": "harrier.cdev.bitmask.net", 
+      "ip_address": "199.254.238.50", 
+      "location": "seattle__wa"
+    }
+  ], 
+  "locations": {
+    "seattle__wa": {
+      "country_code": "US", 
+      "hemisphere": "N", 
+      "name": "Seattle, WA", 
+      "timezone": "-7"
+    }
+  }, 
+  "openvpn_configuration": {
+    "auth": "SHA1", 
+    "cipher": "AES-128-CBC", 
+    "tls-cipher": "DHE-RSA-AES128-SHA"
+  }, 
+  "serial": 1, 
+  "version": 1
+}
\ No newline at end of file
diff --git a/src/leap/bitmask/crypto/tests/fake_provider.py b/src/leap/bitmask/crypto/tests/fake_provider.py
new file mode 100755
index 00000000..54af485d
--- /dev/null
+++ b/src/leap/bitmask/crypto/tests/fake_provider.py
@@ -0,0 +1,376 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# fake_provider.py
+# Copyright (C) 2013 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""A server faking some of the provider resources and apis,
+used for testing Leap Client requests
+
+It needs that you create a subfolder named 'certs',
+and that you place the following files:
+
+XXX check if in use
+
+[ ] test-openvpn.pem
+[ ] test-provider.json
+[ ] test-eip-service.json
+"""
+import binascii
+import json
+import os
+import sys
+import time
+
+import srp
+
+from OpenSSL import SSL
+
+from zope.interface import Interface, Attribute, implements
+
+from twisted.web.server import Site, Request
+from twisted.web.static import File, Data
+from twisted.web.resource import Resource
+from twisted.internet import reactor
+
+from leap.common.testing.https_server import where
+
+# See
+# http://twistedmatrix.com/documents/current/web/howto/web-in-60/index.html
+# for more examples
+
+"""
+Testing the FAKE_API:
+#####################
+
+ 1) register an user
+ >> curl -d "user[login]=me" -d "user[password_salt]=foo" \
+         -d "user[password_verifier]=beef" http://localhost:8000/1/users
+ << {"errors": null}
+
+ 2) check that if you try to register again, it will fail:
+ >> curl -d "user[login]=me" -d "user[password_salt]=foo" \
+         -d "user[password_verifier]=beef" http://localhost:8000/1/users
+ << {"errors": {"login": "already taken!"}}
+
+"""
+
+# Globals to mock user/sessiondb
+
+_USERDB = {}
+_SESSIONDB = {}
+
+_here = os.path.split(__file__)[0]
+
+
+safe_unhexlify = lambda x: binascii.unhexlify(x) \
+    if (len(x) % 2 == 0) else binascii.unhexlify('0' + x)
+
+
+class IUser(Interface):
+    """
+    Defines the User Interface
+    """
+    login = Attribute("User login.")
+    salt = Attribute("Password salt.")
+    verifier = Attribute("Password verifier.")
+    session = Attribute("Session.")
+    svr = Attribute("Server verifier.")
+
+
+class User(object):
+    """
+    User object.
+    We store it in our simple session mocks
+    """
+
+    implements(IUser)
+
+    def __init__(self, login, salt, verifier):
+        self.login = login
+        self.salt = salt
+        self.verifier = verifier
+        self.session = None
+        self.svr = None
+
+    def set_server_verifier(self, svr):
+        """
+        Adds a svr verifier object to this
+        User instance
+        """
+        self.svr = svr
+
+    def set_session(self, session):
+        """
+        Adds this instance of User to the
+        global session dict
+        """
+        _SESSIONDB[session] = self
+        self.session = session
+
+
+class FakeUsers(Resource):
+    """
+    Resource that handles user registration.
+    """
+
+    def __init__(self, name):
+        self.name = name
+
+    def render_POST(self, request):
+        """
+        Handles POST to the users api resource
+        Simulates a login.
+        """
+        args = request.args
+
+        login = args['user[login]'][0]
+        salt = args['user[password_salt]'][0]
+        verifier = args['user[password_verifier]'][0]
+
+        if login in _USERDB:
+            request.setResponseCode(422)
+            return "%s\n" % json.dumps(
+                {'errors': {'login': 'already taken!'}})
+
+        print '[server]', login, verifier, salt
+        user = User(login, salt, verifier)
+        _USERDB[login] = user
+        return json.dumps({'errors': None})
+
+
+def getSession(self, sessionInterface=None):
+    """
+    we overwrite twisted.web.server.Request.getSession method to
+    put the right cookie name in place
+    """
+    if not self.session:
+        #cookiename = b"_".join([b'TWISTED_SESSION'] + self.sitepath)
+        cookiename = b"_".join([b'_session_id'] + self.sitepath)
+        sessionCookie = self.getCookie(cookiename)
+        if sessionCookie:
+            try:
+                self.session = self.site.getSession(sessionCookie)
+            except KeyError:
+                pass
+        # if it still hasn't been set, fix it up.
+        if not self.session:
+            self.session = self.site.makeSession()
+            self.addCookie(cookiename, self.session.uid, path=b'/')
+    self.session.touch()
+    if sessionInterface:
+        return self.session.getComponent(sessionInterface)
+    return self.session
+
+
+def get_user(request):
+    """
+    Returns user from the session dict
+    """
+    login = request.args.get('login')
+    if login:
+        user = _USERDB.get(login[0], None)
+        if user:
+            return user
+
+    request.getSession = getSession.__get__(request, Request)
+    session = request.getSession()
+
+    user = _SESSIONDB.get(session, None)
+    return user
+
+
+class FakeSession(Resource):
+    def __init__(self, name):
+        """
+        Initializes session
+        """
+        self.name = name
+
+    def render_GET(self, request):
+        """
+        Handles GET requests.
+        """
+        return "%s\n" % json.dumps({'errors': None})
+
+    def render_POST(self, request):
+        """
+        Handles POST requests.
+        """
+        user = get_user(request)
+
+        if not user:
+            # XXX get real error from demo provider
+            return json.dumps({'errors': 'no such user'})
+
+        A = request.args['A'][0]
+
+        _A = safe_unhexlify(A)
+        _salt = safe_unhexlify(user.salt)
+        _verifier = safe_unhexlify(user.verifier)
+
+        svr = srp.Verifier(
+            user.login,
+            _salt,
+            _verifier,
+            _A,
+            hash_alg=srp.SHA256,
+            ng_type=srp.NG_1024)
+
+        s, B = svr.get_challenge()
+
+        _B = binascii.hexlify(B)
+
+        print '[server] login = %s' % user.login
+        print '[server] salt = %s' % user.salt
+        print '[server] len(_salt) = %s' % len(_salt)
+        print '[server] vkey = %s' % user.verifier
+        print '[server] len(vkey) = %s' % len(_verifier)
+        print '[server] s = %s' % binascii.hexlify(s)
+        print '[server] B = %s' % _B
+        print '[server] len(B) = %s' % len(_B)
+
+        # override Request.getSession
+        request.getSession = getSession.__get__(request, Request)
+        session = request.getSession()
+
+        user.set_session(session)
+        user.set_server_verifier(svr)
+
+        # yep, this is tricky.
+        # some things are *already* unhexlified.
+        data = {
+            'salt': user.salt,
+            'B': _B,
+            'errors': None}
+
+        return json.dumps(data)
+
+    def render_PUT(self, request):
+        """
+        Handles PUT requests.
+        """
+        # XXX check session???
+        user = get_user(request)
+
+        if not user:
+            print '[server] NO USER'
+            return json.dumps({'errors': 'no such user'})
+
+        data = request.content.read()
+        auth = data.split("client_auth=")
+        M = auth[1] if len(auth) > 1 else None
+        # if not H, return
+        if not M:
+            return json.dumps({'errors': 'no M proof passed by client'})
+
+        svr = user.svr
+        HAMK = svr.verify_session(binascii.unhexlify(M))
+        if HAMK is None:
+            print '[server] verification failed!!!'
+            raise Exception("Authentication failed!")
+            #import ipdb;ipdb.set_trace()
+
+        assert svr.authenticated()
+        print "***"
+        print '[server] User successfully authenticated using SRP!'
+        print "***"
+
+        return json.dumps(
+            {'M2': binascii.hexlify(HAMK),
+             'id': '9c943eb9d96a6ff1b7a7030bdeadbeef',
+             'errors': None})
+
+
+class API_Sessions(Resource):
+    """
+    Top resource for the API v1
+    """
+    def getChild(self, name, request):
+        return FakeSession(name)
+
+
+class FileModified(File):
+    def render_GET(self, request):
+        since = request.getHeader('if-modified-since')
+        if since:
+            tsince = time.strptime(since.replace(" GMT", ""))
+            tfrom = time.strptime(time.ctime(os.path.getmtime(self.path)))
+            if tfrom > tsince:
+                return File.render_GET(self, request)
+            else:
+                request.setResponseCode(304)
+                return ""
+        return File.render_GET(self, request)
+
+
+class OpenSSLServerContextFactory(object):
+
+    def getContext(self):
+        """
+        Create an SSL context.
+        """
+        ctx = SSL.Context(SSL.SSLv23_METHOD)
+        #ctx = SSL.Context(SSL.TLSv1_METHOD)
+        ctx.use_certificate_file(where('leaptestscert.pem'))
+        ctx.use_privatekey_file(where('leaptestskey.pem'))
+
+        return ctx
+
+
+def get_provider_factory():
+    """
+    Instantiates a Site that serves the resources
+    that we expect from a valid provider.
+    Listens on:
+    * port 8000 for http connections
+    * port 8443 for https connections
+
+    :rparam: factory for a site
+    :rtype: Site instance
+    """
+    root = Data("", "")
+    root.putChild("", root)
+    root.putChild("provider.json", FileModified(
+        os.path.join(_here,
+                     "test_provider.json")))
+    config = Resource()
+    config.putChild(
+        "eip-service.json",
+        FileModified(
+            os.path.join(_here, "eip-service.json")))
+    apiv1 = Resource()
+    apiv1.putChild("config", config)
+    apiv1.putChild("sessions", API_Sessions())
+    apiv1.putChild("users", FakeUsers(None))
+    apiv1.putChild("cert", FileModified(
+        os.path.join(_here,
+                     'openvpn.pem')))
+    root.putChild("1", apiv1)
+
+    factory = Site(root)
+    return factory
+
+
+if __name__ == "__main__":
+
+    from twisted.python import log
+    log.startLogging(sys.stdout)
+
+    factory = get_provider_factory()
+
+    # regular http (for debugging with curl)
+    reactor.listenTCP(8000, factory)
+    reactor.listenSSL(8443, factory, OpenSSLServerContextFactory())
+    reactor.run()
diff --git a/src/leap/bitmask/crypto/tests/openvpn.pem b/src/leap/bitmask/crypto/tests/openvpn.pem
new file mode 100644
index 00000000..a95e9370
--- /dev/null
+++ b/src/leap/bitmask/crypto/tests/openvpn.pem
@@ -0,0 +1,33 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/src/leap/bitmask/crypto/tests/test_provider.json b/src/leap/bitmask/crypto/tests/test_provider.json
new file mode 100644
index 00000000..c37bef8f
--- /dev/null
+++ b/src/leap/bitmask/crypto/tests/test_provider.json
@@ -0,0 +1,15 @@
+{
+  "api_uri": "https://localhost:8443", 
+  "api_version": "1", 
+  "ca_cert_fingerprint": "SHA256: 0f17c033115f6b76ff67871872303ff65034efe7dd1b910062ca323eb4da5c7e", 
+  "ca_cert_uri": "https://bitmask.net/ca.crt", 
+  "default_language": "en", 
+  "domain": "example.com", 
+  "enrollment_policy": "open", 
+  "name": {
+    "en": "Bitmask"
+  }, 
+  "services": [
+    "openvpn"
+  ]
+}
diff --git a/src/leap/bitmask/crypto/tests/test_srpauth.py b/src/leap/bitmask/crypto/tests/test_srpauth.py
new file mode 100644
index 00000000..e3258fd3
--- /dev/null
+++ b/src/leap/bitmask/crypto/tests/test_srpauth.py
@@ -0,0 +1,790 @@
+# -*- coding: utf-8 -*-
+# test_srpauth.py
+# Copyright (C) 2013 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+Tests for:
+    * leap/crypto/srpauth.py
+"""
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+import os
+import sys
+import binascii
+import requests
+import mock
+
+from mock import MagicMock
+from nose.twistedtools import reactor, deferred
+from twisted.python import log
+from twisted.internet import threads
+from functools import partial
+from requests.models import Response
+from simplejson.decoder import JSONDecodeError
+
+from leap.common.testing.https_server import where
+from leap.config.providerconfig import ProviderConfig
+from leap.crypto import srpregister, srpauth
+from leap.crypto.tests import fake_provider
+from leap.util.request_helpers import get_content
+
+log.startLogging(sys.stdout)
+
+
+def _get_capath():
+    return where("cacert.pem")
+
+_here = os.path.split(__file__)[0]
+
+
+class ImproperlyConfiguredError(Exception):
+    """
+    Raised if the test provider is missing configuration
+    """
+
+
+class SRPAuthTestCase(unittest.TestCase):
+    """
+    Tests for the SRPAuth class
+    """
+    __name__ = "SRPAuth tests"
+
+    def setUp(self):
+        """
+        Sets up this TestCase with a simple and faked provider instance:
+
+        * runs a threaded reactor
+        * loads a mocked ProviderConfig that points to the certs in the
+          leap.common.testing module.
+        """
+        factory = fake_provider.get_provider_factory()
+        http = reactor.listenTCP(0, factory)
+        https = reactor.listenSSL(
+            0, factory,
+            fake_provider.OpenSSLServerContextFactory())
+        get_port = lambda p: p.getHost().port
+        self.http_port = get_port(http)
+        self.https_port = get_port(https)
+
+        provider = ProviderConfig()
+        provider.get_ca_cert_path = mock.create_autospec(
+            provider.get_ca_cert_path)
+        provider.get_ca_cert_path.return_value = _get_capath()
+
+        provider.get_api_uri = mock.create_autospec(
+            provider.get_api_uri)
+        provider.get_api_uri.return_value = self._get_https_uri()
+
+        loaded = provider.load(path=os.path.join(
+            _here, "test_provider.json"))
+        if not loaded:
+            raise ImproperlyConfiguredError(
+                "Could not load test provider config")
+        self.register = srpregister.SRPRegister(provider_config=provider)
+        self.provider = provider
+        self.TEST_USER = "register_test_auth"
+        self.TEST_PASS = "pass"
+
+        # Reset the singleton
+        srpauth.SRPAuth._SRPAuth__instance = None
+        self.auth = srpauth.SRPAuth(self.provider)
+        self.auth_backend = self.auth._SRPAuth__instance
+
+        self.old_post = self.auth_backend._session.post
+        self.old_put = self.auth_backend._session.put
+        self.old_delete = self.auth_backend._session.delete
+
+        self.old_start_auth = self.auth_backend._start_authentication
+        self.old_proc_challenge = self.auth_backend._process_challenge
+        self.old_extract_data = self.auth_backend._extract_data
+        self.old_verify_session = self.auth_backend._verify_session
+        self.old_auth_preproc = self.auth_backend._authentication_preprocessing
+        self.old_get_sid = self.auth_backend.get_session_id
+        self.old_cookie_get = self.auth_backend._session.cookies.get
+        self.old_auth = self.auth_backend.authenticate
+
+    def tearDown(self):
+        self.auth_backend._session.post = self.old_post
+        self.auth_backend._session.put = self.old_put
+        self.auth_backend._session.delete = self.old_delete
+
+        self.auth_backend._start_authentication = self.old_start_auth
+        self.auth_backend._process_challenge = self.old_proc_challenge
+        self.auth_backend._extract_data = self.old_extract_data
+        self.auth_backend._verify_session = self.old_verify_session
+        self.auth_backend._authentication_preprocessing = self.old_auth_preproc
+        self.auth_backend.get_session_id = self.old_get_sid
+        self.auth_backend._session.cookies.get = self.old_cookie_get
+        self.auth_backend.authenticate = self.old_auth
+
+    # helper methods
+
+    def _get_https_uri(self):
+        """
+        Returns a https uri with the right https port initialized
+        """
+        return "https://localhost:%s" % (self.https_port,)
+
+    # Auth tests
+
+    def _prepare_auth_test(self, code=200, side_effect=None):
+        """
+        Creates the needed defers to test several test situations. It
+        adds up to the auth preprocessing step.
+
+        :param code: status code for the response of POST in requests
+        :type code: int
+        :param side_effect: side effect triggered by the POST method
+                            in requests
+        :type side_effect: some kind of Exception
+
+        :returns: the defer that is created
+        :rtype: defer.Deferred
+        """
+        res = Response()
+        res.status_code = code
+        self.auth_backend._session.post = mock.create_autospec(
+            self.auth_backend._session.post,
+            return_value=res,
+            side_effect=side_effect)
+
+        d = threads.deferToThread(self.register.register_user,
+                                  self.TEST_USER,
+                                  self.TEST_PASS)
+
+        def wrapper_preproc(*args):
+            return threads.deferToThread(
+                self.auth_backend._authentication_preprocessing,
+                self.TEST_USER, self.TEST_PASS)
+
+        d.addCallback(wrapper_preproc)
+
+        return d
+
+    def test_safe_unhexlify(self):
+        input_value = "somestring"
+        test_value = binascii.hexlify(input_value)
+        self.assertEqual(
+            self.auth_backend._safe_unhexlify(test_value),
+            input_value)
+
+    def test_safe_unhexlify_not_raises(self):
+        input_value = "somestring"
+        test_value = binascii.hexlify(input_value)[:-1]
+
+        with self.assertRaises(TypeError):
+            binascii.unhexlify(test_value)
+
+        self.auth_backend._safe_unhexlify(test_value)
+
+    def test_preprocessing_loads_a(self):
+        self.assertEqual(self.auth_backend._srp_a, None)
+        self.auth_backend._authentication_preprocessing("user", "pass")
+        self.assertIsNotNone(self.auth_backend._srp_a)
+        self.assertTrue(len(self.auth_backend._srp_a) > 0)
+
+    @deferred()
+    def test_start_authentication(self):
+        d = threads.deferToThread(self.register.register_user, self.TEST_USER,
+                                  self.TEST_PASS)
+
+        def wrapper_preproc(*args):
+            return threads.deferToThread(
+                self.auth_backend._authentication_preprocessing,
+                self.TEST_USER, self.TEST_PASS)
+
+        d.addCallback(wrapper_preproc)
+
+        def wrapper(_):
+            return threads.deferToThread(
+                self.auth_backend._start_authentication,
+                None, self.TEST_USER)
+
+        d.addCallback(wrapper)
+        return d
+
+    @deferred()
+    def test_start_authentication_fails_connerror(self):
+        d = self._prepare_auth_test(
+            side_effect=requests.exceptions.ConnectionError())
+
+        def wrapper(_):
+            with self.assertRaises(srpauth.SRPAuthConnectionError):
+                self.auth_backend._start_authentication(None, self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+        return d
+
+    @deferred()
+    def test_start_authentication_fails_any_error(self):
+        d = self._prepare_auth_test(side_effect=Exception())
+
+        def wrapper(_):
+            with self.assertRaises(srpauth.SRPAuthenticationError):
+                self.auth_backend._start_authentication(None, self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+        return d
+
+    @deferred()
+    def test_start_authentication_fails_unknown_user(self):
+        d = self._prepare_auth_test(422)
+
+        def wrapper(_):
+            with self.assertRaises(srpauth.SRPAuthUnknownUser):
+                with mock.patch('leap.util.request_helpers.get_content',
+                                new=mock.create_autospec(get_content)) as \
+                        content:
+                    content.return_value = ("{}", 0)
+
+                    self.auth_backend._start_authentication(
+                        None, self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+        return d
+
+    @deferred()
+    def test_start_authentication_fails_errorcode(self):
+        d = self._prepare_auth_test(302)
+
+        def wrapper(_):
+            with self.assertRaises(srpauth.SRPAuthBadStatusCode):
+                with mock.patch('leap.util.request_helpers.get_content',
+                                new=mock.create_autospec(get_content)) as \
+                        content:
+                    content.return_value = ("{}", 0)
+
+                    self.auth_backend._start_authentication(None,
+                                                            self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+        return d
+
+    @deferred()
+    def test_start_authentication_fails_no_salt(self):
+        d = self._prepare_auth_test(200)
+
+        def wrapper(_):
+            with self.assertRaises(srpauth.SRPAuthNoSalt):
+                with mock.patch('leap.util.request_helpers.get_content',
+                                new=mock.create_autospec(get_content)) as \
+                        content:
+                    content.return_value = ("{}", 0)
+
+                    self.auth_backend._start_authentication(None,
+                                                            self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+        return d
+
+    @deferred()
+    def test_start_authentication_fails_no_B(self):
+        d = self._prepare_auth_test(200)
+
+        def wrapper(_):
+            with self.assertRaises(srpauth.SRPAuthNoB):
+                with mock.patch('leap.util.request_helpers.get_content',
+                                new=mock.create_autospec(get_content)) as \
+                        content:
+                    content.return_value = ('{"salt": ""}', 0)
+
+                    self.auth_backend._start_authentication(None,
+                                                            self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+        return d
+
+    @deferred()
+    def test_start_authentication_correct_saltb(self):
+        d = self._prepare_auth_test(200)
+
+        test_salt = "12345"
+        test_B = "67890"
+
+        def wrapper(_):
+            with mock.patch('leap.util.request_helpers.get_content',
+                            new=mock.create_autospec(get_content)) as \
+                    content:
+                content.return_value = ('{"salt":"%s", "B":"%s"}' % (test_salt,
+                                                                     test_B),
+                                        0)
+
+                salt, B = self.auth_backend._start_authentication(
+                    None,
+                    self.TEST_USER)
+                self.assertEqual(salt, test_salt)
+                self.assertEqual(B, test_B)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+        return d
+
+    def _prepare_auth_challenge(self):
+        """
+        Creates the needed defers to test several test situations. It
+        adds up to the start authentication step.
+
+        :returns: the defer that is created
+        :rtype: defer.Deferred
+        """
+        d = threads.deferToThread(self.register.register_user,
+                                  self.TEST_USER,
+                                  self.TEST_PASS)
+
+        def wrapper_preproc(*args):
+            return threads.deferToThread(
+                self.auth_backend._authentication_preprocessing,
+                self.TEST_USER, self.TEST_PASS)
+
+        d.addCallback(wrapper_preproc)
+
+        def wrapper_start(*args):
+            return threads.deferToThread(
+                self.auth_backend._start_authentication,
+                None, self.TEST_USER)
+
+        d.addCallback(wrapper_start)
+
+        return d
+
+    @deferred()
+    def test_process_challenge_wrong_saltb(self):
+        d = self._prepare_auth_challenge()
+
+        def wrapper(salt_B):
+            with self.assertRaises(srpauth.SRPAuthBadDataFromServer):
+                self.auth_backend._process_challenge("",
+                                                     username=self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+        return d
+
+    @deferred()
+    def test_process_challenge_requests_problem_raises(self):
+        d = self._prepare_auth_challenge()
+
+        self.auth_backend._session.put = mock.create_autospec(
+            self.auth_backend._session.put,
+            side_effect=requests.exceptions.ConnectionError())
+
+        def wrapper(salt_B):
+            with self.assertRaises(srpauth.SRPAuthConnectionError):
+                self.auth_backend._process_challenge(salt_B,
+                                                     username=self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+
+        return d
+
+    @deferred()
+    def test_process_challenge_json_decode_error(self):
+        d = self._prepare_auth_challenge()
+
+        def wrapper(salt_B):
+            with mock.patch('leap.util.request_helpers.get_content',
+                            new=mock.create_autospec(get_content)) as \
+                    content:
+                content.return_value = ("{", 0)
+                content.side_effect = JSONDecodeError("", "", 0)
+
+                with self.assertRaises(srpauth.SRPAuthJSONDecodeError):
+                    self.auth_backend._process_challenge(
+                        salt_B,
+                        username=self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+
+        return d
+
+    @deferred()
+    def test_process_challenge_bad_password(self):
+        d = self._prepare_auth_challenge()
+
+        res = Response()
+        res.status_code = 422
+        self.auth_backend._session.put = mock.create_autospec(
+            self.auth_backend._session.put,
+            return_value=res)
+
+        def wrapper(salt_B):
+            with mock.patch('leap.util.request_helpers.get_content',
+                            new=mock.create_autospec(get_content)) as \
+                    content:
+                content.return_value = ("", 0)
+                with self.assertRaises(srpauth.SRPAuthBadPassword):
+                    self.auth_backend._process_challenge(
+                        salt_B,
+                        username=self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+
+        return d
+
+    @deferred()
+    def test_process_challenge_bad_password2(self):
+        d = self._prepare_auth_challenge()
+
+        res = Response()
+        res.status_code = 422
+        self.auth_backend._session.put = mock.create_autospec(
+            self.auth_backend._session.put,
+            return_value=res)
+
+        def wrapper(salt_B):
+            with mock.patch('leap.util.request_helpers.get_content',
+                            new=mock.create_autospec(get_content)) as \
+                    content:
+                content.return_value = ("[]", 0)
+                with self.assertRaises(srpauth.SRPAuthBadPassword):
+                    self.auth_backend._process_challenge(
+                        salt_B,
+                        username=self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+
+        return d
+
+    @deferred()
+    def test_process_challenge_other_error_code(self):
+        d = self._prepare_auth_challenge()
+
+        res = Response()
+        res.status_code = 300
+        self.auth_backend._session.put = mock.create_autospec(
+            self.auth_backend._session.put,
+            return_value=res)
+
+        def wrapper(salt_B):
+            with mock.patch('leap.util.request_helpers.get_content',
+                            new=mock.create_autospec(get_content)) as \
+                    content:
+                content.return_value = ("{}", 0)
+                with self.assertRaises(srpauth.SRPAuthBadStatusCode):
+                    self.auth_backend._process_challenge(
+                        salt_B,
+                        username=self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+
+        return d
+
+    @deferred()
+    def test_process_challenge(self):
+        d = self._prepare_auth_challenge()
+
+        def wrapper(salt_B):
+            self.auth_backend._process_challenge(salt_B,
+                                                 username=self.TEST_USER)
+
+        d.addCallback(partial(threads.deferToThread, wrapper))
+
+        return d
+
+    def test_extract_data_wrong_data(self):
+        with self.assertRaises(srpauth.SRPAuthBadDataFromServer):
+            self.auth_backend._extract_data(None)
+
+        with self.assertRaises(srpauth.SRPAuthBadDataFromServer):
+            self.auth_backend._extract_data("")
+
+    def test_extract_data_fails_on_wrong_data_from_server(self):
+        with self.assertRaises(srpauth.SRPAuthBadDataFromServer):
+            self.auth_backend._extract_data({})
+
+        with self.assertRaises(srpauth.SRPAuthBadDataFromServer):
+            self.auth_backend._extract_data({"M2": ""})
+
+    def test_extract_data_sets_uidtoken(self):
+        test_uid = "someuid"
+        test_m2 = "somem2"
+        test_token = "sometoken"
+        test_data = {
+            "M2": test_m2,
+            "id": test_uid,
+            "token": test_token
+        }
+        m2 = self.auth_backend._extract_data(test_data)
+
+        self.assertEqual(m2, test_m2)
+        self.assertEqual(self.auth_backend.get_uid(), test_uid)
+        self.assertEqual(self.auth_backend.get_uid(),
+                         self.auth.get_uid())
+        self.assertEqual(self.auth_backend.get_token(), test_token)
+        self.assertEqual(self.auth_backend.get_token(),
+                         self.auth.get_token())
+
+    def _prepare_verify_session(self):
+        """
+        Prepares the tests for verify session with needed steps
+        before. It adds up to the extract_data step.
+
+        :returns: The defer to chain to
+        :rtype: defer.Deferred
+        """
+        d = self._prepare_auth_challenge()
+
+        def wrapper_proc_challenge(salt_B):
+            return self.auth_backend._process_challenge(
+                salt_B,
+                username=self.TEST_USER)
+
+        def wrapper_extract_data(data):
+            return self.auth_backend._extract_data(data)
+
+        d.addCallback(partial(threads.deferToThread, wrapper_proc_challenge))
+        d.addCallback(partial(threads.deferToThread, wrapper_extract_data))
+
+        return d
+
+    @deferred()
+    def test_verify_session_unhexlifiable_m2(self):
+        d = self._prepare_verify_session()
+
+        def wrapper(M2):
+            with self.assertRaises(srpauth.SRPAuthBadDataFromServer):
+                self.auth_backend._verify_session("za")  # unhexlifiable value
+
+        d.addCallback(wrapper)
+
+        return d
+
+    @deferred()
+    def test_verify_session_unverifiable_m2(self):
+        d = self._prepare_verify_session()
+
+        def wrapper(M2):
+            with self.assertRaises(srpauth.SRPAuthVerificationFailed):
+                # Correctly unhelifiable value, but not for verifying the
+                # session
+                self.auth_backend._verify_session("abc12")
+
+        d.addCallback(wrapper)
+
+        return d
+
+    @deferred()
+    def test_verify_session_fails_on_no_session_id(self):
+        d = self._prepare_verify_session()
+
+        def wrapper(M2):
+            self.auth_backend._session.cookies.get = mock.create_autospec(
+                self.auth_backend._session.cookies.get,
+                return_value=None)
+            with self.assertRaises(srpauth.SRPAuthNoSessionId):
+                self.auth_backend._verify_session(M2)
+
+        d.addCallback(wrapper)
+
+        return d
+
+    @deferred()
+    def test_verify_session_session_id(self):
+        d = self._prepare_verify_session()
+
+        test_session_id = "12345"
+
+        def wrapper(M2):
+            self.auth_backend._session.cookies.get = mock.create_autospec(
+                self.auth_backend._session.cookies.get,
+                return_value=test_session_id)
+            self.auth_backend._verify_session(M2)
+            self.assertEqual(self.auth_backend.get_session_id(),
+                             test_session_id)
+            self.assertEqual(self.auth_backend.get_session_id(),
+                             self.auth.get_session_id())
+
+        d.addCallback(wrapper)
+
+        return d
+
+    @deferred()
+    def test_verify_session(self):
+        d = self._prepare_verify_session()
+
+        def wrapper(M2):
+            self.auth_backend._verify_session(M2)
+
+        d.addCallback(wrapper)
+
+        return d
+
+    @deferred()
+    def test_authenticate(self):
+        self.auth_backend._authentication_preprocessing = mock.create_autospec(
+            self.auth_backend._authentication_preprocessing,
+            return_value=None)
+        self.auth_backend._start_authentication = mock.create_autospec(
+            self.auth_backend._start_authentication,
+            return_value=None)
+        self.auth_backend._process_challenge = mock.create_autospec(
+            self.auth_backend._process_challenge,
+            return_value=None)
+        self.auth_backend._extract_data = mock.create_autospec(
+            self.auth_backend._extract_data,
+            return_value=None)
+        self.auth_backend._verify_session = mock.create_autospec(
+            self.auth_backend._verify_session,
+            return_value=None)
+
+        d = self.auth_backend.authenticate(self.TEST_USER, self.TEST_PASS)
+
+        def check(*args):
+            self.auth_backend._authentication_preprocessing.\
+                assert_called_once_with(
+                    username=self.TEST_USER,
+                    password=self.TEST_PASS
+                )
+            self.auth_backend._start_authentication.assert_called_once_with(
+                None,
+                username=self.TEST_USER)
+            self.auth_backend._process_challenge.assert_called_once_with(
+                None,
+                username=self.TEST_USER)
+            self.auth_backend._extract_data.assert_called_once_with(
+                None)
+            self.auth_backend._verify_session.assert_called_once_with(None)
+
+        d.addCallback(check)
+
+        return d
+
+    @deferred()
+    def test_logout_fails_if_not_logged_in(self):
+
+        def wrapper(*args):
+            with self.assertRaises(AssertionError):
+                self.auth_backend.logout()
+
+        d = threads.deferToThread(wrapper)
+        return d
+
+    @deferred()
+    def test_logout_traps_delete(self):
+        self.auth_backend.get_session_id = mock.create_autospec(
+            self.auth_backend.get_session_id,
+            return_value="1234")
+        self.auth_backend._session.delete = mock.create_autospec(
+            self.auth_backend._session.delete,
+            side_effect=Exception())
+
+        def wrapper(*args):
+            self.auth_backend.logout()
+
+        d = threads.deferToThread(wrapper)
+        return d
+
+    @deferred()
+    def test_logout_clears(self):
+        self.auth_backend._session_id = "1234"
+
+        def wrapper(*args):
+            old_session = self.auth_backend._session
+            self.auth_backend.logout()
+            self.assertIsNone(self.auth_backend.get_session_id())
+            self.assertIsNone(self.auth_backend.get_uid())
+            self.assertNotEqual(old_session, self.auth_backend._session)
+
+        d = threads.deferToThread(wrapper)
+        return d
+
+
+class SRPAuthSingletonTestCase(unittest.TestCase):
+    def setUp(self):
+        self.old_auth = srpauth.SRPAuth._SRPAuth__impl.authenticate
+
+    def tearDown(self):
+        srpauth.SRPAuth._SRPAuth__impl.authenticate = self.old_auth
+
+    def test_singleton(self):
+        obj1 = srpauth.SRPAuth(ProviderConfig())
+        obj2 = srpauth.SRPAuth(ProviderConfig())
+        self.assertEqual(obj1._SRPAuth__instance, obj2._SRPAuth__instance)
+
+    @deferred()
+    def test_authenticate_notifies_gui(self):
+        auth = srpauth.SRPAuth(ProviderConfig())
+        auth._SRPAuth__instance.authenticate = mock.create_autospec(
+            auth._SRPAuth__instance.authenticate,
+            return_value=threads.deferToThread(lambda: None))
+        auth._gui_notify = mock.create_autospec(
+            auth._gui_notify)
+
+        d = auth.authenticate("", "")
+
+        def check(*args):
+            auth._gui_notify.assert_called_once_with(None)
+
+        d.addCallback(check)
+        return d
+
+    @deferred()
+    def test_authenticate_errsback(self):
+        auth = srpauth.SRPAuth(ProviderConfig())
+        auth._SRPAuth__instance.authenticate = mock.create_autospec(
+            auth._SRPAuth__instance.authenticate,
+            return_value=threads.deferToThread(MagicMock(
+                side_effect=Exception())))
+        auth._gui_notify = mock.create_autospec(
+            auth._gui_notify)
+        auth._errback = mock.create_autospec(
+            auth._errback)
+
+        d = auth.authenticate("", "")
+
+        def check(*args):
+            self.assertFalse(auth._gui_notify.called)
+            self.assertEqual(auth._errback.call_count, 1)
+
+        d.addCallback(check)
+        return d
+
+    @deferred()
+    def test_authenticate_runs_cleanly_when_raises(self):
+        auth = srpauth.SRPAuth(ProviderConfig())
+        auth._SRPAuth__instance.authenticate = mock.create_autospec(
+            auth._SRPAuth__instance.authenticate,
+            return_value=threads.deferToThread(MagicMock(
+                side_effect=Exception())))
+
+        d = auth.authenticate("", "")
+
+        return d
+
+    @deferred()
+    def test_authenticate_runs_cleanly(self):
+        auth = srpauth.SRPAuth(ProviderConfig())
+        auth._SRPAuth__instance.authenticate = mock.create_autospec(
+            auth._SRPAuth__instance.authenticate,
+            return_value=threads.deferToThread(MagicMock()))
+
+        d = auth.authenticate("", "")
+
+        return d
+
+    def test_logout(self):
+        auth = srpauth.SRPAuth(ProviderConfig())
+        auth._SRPAuth__instance.logout = mock.create_autospec(
+            auth._SRPAuth__instance.logout)
+
+        self.assertTrue(auth.logout())
+
+    def test_logout_rets_false_when_raises(self):
+        auth = srpauth.SRPAuth(ProviderConfig())
+        auth._SRPAuth__instance.logout = mock.create_autospec(
+            auth._SRPAuth__instance.logout,
+            side_effect=Exception())
+
+        self.assertFalse(auth.logout())
diff --git a/src/leap/bitmask/crypto/tests/test_srpregister.py b/src/leap/bitmask/crypto/tests/test_srpregister.py
new file mode 100644
index 00000000..66b815f2
--- /dev/null
+++ b/src/leap/bitmask/crypto/tests/test_srpregister.py
@@ -0,0 +1,201 @@
+# -*- coding: utf-8 -*-
+# test_srpregister.py
+# Copyright (C) 2013 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+Tests for:
+    * leap/crypto/srpregister.py
+"""
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+import os
+import sys
+
+from mock import MagicMock
+from nose.twistedtools import reactor, deferred
+from twisted.python import log
+from twisted.internet import threads
+
+from leap.common.testing.https_server import where
+from leap.config.providerconfig import ProviderConfig
+from leap.crypto import srpregister, srpauth
+from leap.crypto.tests import fake_provider
+
+log.startLogging(sys.stdout)
+
+
+def _get_capath():
+    return where("cacert.pem")
+
+_here = os.path.split(__file__)[0]
+
+
+class ImproperlyConfiguredError(Exception):
+    """
+    Raised if the test provider is missing configuration
+    """
+
+
+class SRPTestCase(unittest.TestCase):
+    """
+    Tests for the SRPRegister class
+    """
+    __name__ = "SRPRegister tests"
+
+    @classmethod
+    def setUpClass(cls):
+        """
+        Sets up this TestCase with a simple and faked provider instance:
+
+        * runs a threaded reactor
+        * loads a mocked ProviderConfig that points to the certs in the
+          leap.common.testing module.
+        """
+        factory = fake_provider.get_provider_factory()
+        http = reactor.listenTCP(8001, factory)
+        https = reactor.listenSSL(
+            0, factory,
+            fake_provider.OpenSSLServerContextFactory())
+        get_port = lambda p: p.getHost().port
+        cls.http_port = get_port(http)
+        cls.https_port = get_port(https)
+
+        provider = ProviderConfig()
+        provider.get_ca_cert_path = MagicMock()
+        provider.get_ca_cert_path.return_value = _get_capath()
+
+        provider.get_api_uri = MagicMock()
+        provider.get_api_uri.return_value = cls._get_https_uri()
+
+        loaded = provider.load(path=os.path.join(
+            _here, "test_provider.json"))
+        if not loaded:
+            raise ImproperlyConfiguredError(
+                "Could not load test provider config")
+        cls.register = srpregister.SRPRegister(provider_config=provider)
+
+        cls.auth = srpauth.SRPAuth(provider)
+
+    # helper methods
+
+    @classmethod
+    def _get_https_uri(cls):
+        """
+        Returns a https uri with the right https port initialized
+        """
+        return "https://localhost:%s" % (cls.https_port,)
+
+    # Register tests
+
+    def test_none_port(self):
+        provider = ProviderConfig()
+        provider.get_api_uri = MagicMock()
+        provider.get_api_uri.return_value = "http://localhost/"
+        loaded = provider.load(path=os.path.join(
+            _here, "test_provider.json"))
+        if not loaded:
+            raise ImproperlyConfiguredError(
+                "Could not load test provider config")
+
+        register = srpregister.SRPRegister(provider_config=provider)
+        self.assertEquals(register._port, "443")
+
+    @deferred()
+    def test_wrong_cert(self):
+        provider = ProviderConfig()
+        loaded = provider.load(path=os.path.join(
+            _here, "test_provider.json"))
+        provider.get_ca_cert_path = MagicMock()
+        provider.get_ca_cert_path.return_value = os.path.join(
+            _here,
+            "wrongcert.pem")
+        provider.get_api_uri = MagicMock()
+        provider.get_api_uri.return_value = self._get_https_uri()
+        if not loaded:
+            raise ImproperlyConfiguredError(
+                "Could not load test provider config")
+
+        register = srpregister.SRPRegister(provider_config=provider)
+        d = threads.deferToThread(register.register_user, "foouser_firsttime",
+                                  "barpass")
+        d.addCallback(self.assertFalse)
+        return d
+
+    @deferred()
+    def test_register_user(self):
+        """
+        Checks if the registration of an unused name works as expected when
+        it is the first time that we attempt to register that user, as well as
+        when we request a user that is taken.
+        """
+        # pristine registration
+        d = threads.deferToThread(self.register.register_user,
+                                  "foouser_firsttime",
+                                  "barpass")
+        d.addCallback(self.assertTrue)
+        return d
+
+    @deferred()
+    def test_second_register_user(self):
+        # second registration attempt with the same user should return errors
+        d = threads.deferToThread(self.register.register_user,
+                                  "foouser_second",
+                                  "barpass")
+        d.addCallback(self.assertTrue)
+
+        # FIXME currently we are catching this in an upper layer,
+        # we could bring the error validation to the SRPRegister class
+        def register_wrapper(_):
+            return threads.deferToThread(self.register.register_user,
+                                         "foouser_second",
+                                         "barpass")
+        d.addCallback(register_wrapper)
+        d.addCallback(self.assertFalse)
+        return d
+
+    @deferred()
+    def test_correct_http_uri(self):
+        """
+        Checks that registration autocorrect http uris to https ones.
+        """
+        HTTP_URI = "http://localhost:%s" % (self.https_port, )
+        HTTPS_URI = "https://localhost:%s/1/users" % (self.https_port, )
+        provider = ProviderConfig()
+        provider.get_ca_cert_path = MagicMock()
+        provider.get_ca_cert_path.return_value = _get_capath()
+        provider.get_api_uri = MagicMock()
+
+        # we introduce a http uri in the config file...
+        provider.get_api_uri.return_value = HTTP_URI
+        loaded = provider.load(path=os.path.join(
+            _here, "test_provider.json"))
+        if not loaded:
+            raise ImproperlyConfiguredError(
+                "Could not load test provider config")
+
+        register = srpregister.SRPRegister(provider_config=provider)
+
+        # ... and we check that we're correctly taking the HTTPS protocol
+        # instead
+        reg_uri = register._get_registration_uri()
+        self.assertEquals(reg_uri, HTTPS_URI)
+        register._get_registration_uri = MagicMock(return_value=HTTPS_URI)
+        d = threads.deferToThread(register.register_user, "test_failhttp",
+                                  "barpass")
+        d.addCallback(self.assertTrue)
+
+        return d
diff --git a/src/leap/bitmask/crypto/tests/wrongcert.pem b/src/leap/bitmask/crypto/tests/wrongcert.pem
new file mode 100644
index 00000000..e6cff38a
--- /dev/null
+++ b/src/leap/bitmask/crypto/tests/wrongcert.pem
@@ -0,0 +1,33 @@
+-----BEGIN CERTIFICATE-----
+MIIFtTCCA52gAwIBAgIJAIWZus5EIXNtMA0GCSqGSIb3DQEBBQUAMEUxCzAJBgNV
+BAYTAkFVMRMwEQYDVQQIEwpTb21lLVN0YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBX
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+SLhbnzQv5e84Doqz3YF0XW8jyR7q8GFLNA==
+-----END CERTIFICATE-----