diff --git a/openstack_auth/user.py b/openstack_auth/user.py
index 91c1565d..fd000781 100644
--- a/openstack_auth/user.py
+++ b/openstack_auth/user.py
@@ -68,7 +68,7 @@ class Token(object):
 
         # Token-related attributes
         self.id = auth_ref.auth_token
-        if utils.is_asn1_token(self.id):
+        if len(self.id) > 32:
             self.id = hashlib.md5(self.id).hexdigest()
         self.expires = auth_ref.expires
 
diff --git a/openstack_auth/utils.py b/openstack_auth/utils.py
index 43aa4b2f..7278d2eb 100644
--- a/openstack_auth/utils.py
+++ b/openstack_auth/utils.py
@@ -76,52 +76,6 @@ def check_token_expiration(token):
         return False
 
 
-# Copied from Keystone's keystone/common/cms.py file.
-PKI_ASN1_PREFIX = 'MII'
-
-
-def is_asn1_token(token):
-    '''
-    thx to ayoung for sorting this out.
-
-    base64 decoded hex representation of MII is 3082
-    In [3]: binascii.hexlify(base64.b64decode('MII='))
-    Out[3]: '3082'
-
-    re: http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
-
-    pg4:  For tags from 0 to 30 the first octet is the identfier
-    pg10: Hex 30 means sequence, followed by the length of that sequence.
-    pg5:  Second octet is the length octet
-          first bit indicates short or long form, next 7 bits encode the number
-          of subsequent octets that make up the content length octets as an
-          unsigned binary int
-
-          82 = 10000010 (first bit indicates long form)
-          0000010 = 2 octets of content length
-          so read the next 2 octets to get the length of the content.
-
-    In the case of a very large content length there could be a requirement to
-    have more than 2 octets to designate the content length, therefore
-    requiring us to check for MIM, MIQ, etc.
-    In [4]: base64.b64encode(binascii.a2b_hex('3083'))
-    Out[4]: 'MIM='
-    In [5]: base64.b64encode(binascii.a2b_hex('3084'))
-    Out[5]: 'MIQ='
-    Checking for MI would become invalid at 16 octets of content length
-    10010000 = 90
-    In [6]: base64.b64encode(binascii.a2b_hex('3090'))
-    Out[6]: 'MJA='
-    Checking for just M is insufficient
-
-    But we will only check for MII:
-    Max length of the content using 2 octets is 7FFF or 32767
-    It's not practical to support a token of this length or greater in http
-    therefore, we will check for MII only and ignore the case of larger tokens
-    '''
-    return token[:3] == PKI_ASN1_PREFIX
-
-
 # From django.contrib.auth.views
 # Added in Django 1.4.3, 1.5b2
 # Vendored here for compatibility with old Django versions.