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diff --git a/frozen_deps/Crypto/Hash/MD4.py b/frozen_deps/Crypto/Hash/MD4.py
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+# -*- coding: utf-8 -*-
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+"""MD4 cryptographic hash algorithm.
+
+MD4 is specified in RFC1320_ and produces the 128 bit digest of a message.
+
+    >>> from Crypto.Hash import MD4
+    >>>
+    >>> h = MD4.new()
+    >>> h.update(b'Hello')
+    >>> print h.hexdigest()
+
+MD4 stand for Message Digest version 4, and it was invented by Rivest in 1990.
+
+This algorithm is insecure. Do not use it for new designs.
+
+.. _RFC1320: http://tools.ietf.org/html/rfc1320
+"""
+
+_revision__ = "$Id$"
+
+__all__ = ['new', 'digest_size', 'MD4Hash' ]
+
+from Crypto.Util.py3compat import *
+from Crypto.Hash.hashalgo import HashAlgo
+
+import Crypto.Hash._MD4 as _MD4
+hashFactory = _MD4
+
+class MD4Hash(HashAlgo):
+    """Class that implements an MD4 hash
+    
+    :undocumented: block_size
+    """
+
+    #: ASN.1 Object identifier (OID)::
+    #:
+    #:  id-md2 OBJECT IDENTIFIER ::= {
+    #:      iso(1) member-body(2) us(840) rsadsi(113549)
+    #:       digestAlgorithm(2) 4
+    #:  }
+    #:
+    #: This value uniquely identifies the MD4 algorithm.
+    oid = b('\x06\x08\x2a\x86\x48\x86\xf7\x0d\x02\x04')
+
+    digest_size = 16
+    block_size = 64
+
+    def __init__(self, data=None):
+        HashAlgo.__init__(self, hashFactory, data)
+
+    def new(self, data=None):
+        return MD4Hash(data)
+
+def new(data=None):
+    """Return a fresh instance of the hash object.
+
+    :Parameters:
+       data : byte string
+        The very first chunk of the message to hash.
+        It is equivalent to an early call to `MD4Hash.update()`.
+        Optional.
+
+    :Return: A `MD4Hash` object
+    """
+    return MD4Hash().new(data)
+
+#: The size of the resulting hash in bytes.
+digest_size = MD4Hash.digest_size
+
+#: The internal block size of the hash algorithm in bytes.
+block_size = MD4Hash.block_size
+