diff --git a/rhodecode/__init__.py b/rhodecode/__init__.py
--- a/rhodecode/__init__.py
+++ b/rhodecode/__init__.py
@@ -25,11 +25,12 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 # MA  02110-1301, USA.
-
+import platform
 
 VERSION = (1, 2, 0, 'beta')
 __version__ = '.'.join((str(each) for each in VERSION[:4]))
 __dbversion__ = 3 #defines current db version for migrations
+__platform__ = platform.system()
 
 try:
     from rhodecode.lib.utils import get_current_revision
@@ -48,5 +49,5 @@ def get_version():
 
 BACKENDS = {
     'hg': 'Mercurial repository',
-   #'git': 'Git repository',
+    #'git': 'Git repository',
 }
diff --git a/rhodecode/lib/auth.py b/rhodecode/lib/auth.py
--- a/rhodecode/lib/auth.py
+++ b/rhodecode/lib/auth.py
@@ -24,11 +24,11 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 # MA  02110-1301, USA.
 
-import bcrypt
 import random
 import logging
 import traceback
 import hashlib
+
 from tempfile import _RandomNameSequence
 from decorator import decorator
 
@@ -36,6 +36,14 @@ from pylons import config, session, url,
 from pylons.controllers.util import abort, redirect
 from pylons.i18n.translation import _
 
+from rhodecode import __platform__
+
+if __platform__ == 'Windows':
+    from hashlib import sha256
+if __platform__ in ('Linux', 'Darwin'):
+    import bcrypt
+
+
 from rhodecode.lib.exceptions import LdapPasswordError, LdapUsernameError
 from rhodecode.lib.utils import get_repo_slug
 from rhodecode.lib.auth_ldap import AuthLdap
@@ -72,13 +80,49 @@ class PasswordGenerator(object):
         self.passwd = ''.join([random.choice(type) for _ in xrange(len)])
         return self.passwd
 
+class RhodeCodeCrypto(object):
+
+    @classmethod
+    def hash_string(cls, str_):
+        """
+        Cryptographic function used for password hashing based on pybcrypt
+        or pycrypto in windows
+        
+        :param password: password to hash
+        """
+        if __platform__ == 'Windows':
+            return sha256(str_).hexdigest()
+        elif __platform__ in ('Linux', 'Darwin'):
+            return bcrypt.hashpw(str_, bcrypt.gensalt(10))
+        else:
+            raise Exception('Unknown or unsupoprted platform %s' % __platform__)
+
+    @classmethod
+    def hash_check(cls, password, hashed):
+        """
+        Checks matching password with it's hashed value, runs different
+        implementation based on platform it runs on
+        
+        :param password: password
+        :param hashed: password in hashed form
+        """
+
+        if __platform__ == 'Windows':
+            return sha256(password).hexdigest() == hashed
+        elif __platform__ in ('Linux', 'Darwin'):
+            return bcrypt.hashpw(password, hashed) == hashed
+        else:
+            raise Exception('Unknown or unsupoprted platform %s' % __platform__)
+
+
+
+
 
 def get_crypt_password(password):
-    """Cryptographic function used for password hashing based on pybcrypt
-    
-    :param password: password to hash
-    """
-    return bcrypt.hashpw(password, bcrypt.gensalt(10))
+    return RhodeCodeCrypto.hash_string(password)
+
+def check_password(password, hashed):
+    return RhodeCodeCrypto.hash_check(password, hashed)
 
 def generate_api_key(username, salt=None):
     if salt is None:
@@ -86,9 +130,6 @@ def generate_api_key(username, salt=None
 
     return hashlib.sha1(username + salt).hexdigest()
 
-def check_password(password, hashed):
-    return bcrypt.hashpw(password, hashed) == hashed
-
 def authfunc(environ, username, password):
     """Dummy authentication function used in Mercurial/Git/ and access control,
     
diff --git a/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,6 @@
 import sys
 from rhodecode import get_version
+from rhodecode import __platform__
 
 py_version = sys.version_info
 
@@ -13,7 +14,6 @@ requirements = [
         "mercurial>=1.7.5",
         "whoosh>=1.3.4",
         "celery>=2.2.4",
-        "py-bcrypt",
         "babel",
     ]
 
@@ -29,6 +29,10 @@ if py_version < (2, 6):
     requirements.append("simplejson")
     requirements.append("pysqlite")
 
+if __platform__ in ('Linux', 'Darwin'):
+    requirements.append("py-bcrypt")
+
+
 #additional files from project that goes somewhere in the filesystem
 #relative to sys.prefix
 data_files = []