Implement the NTLM authentication scheme by porting...

net/http/des.h

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef NET_HTTP_DES_H_
+#define NET_HTTP_DES_H_
+
+#include "base/basictypes.h"
+
+namespace net {
+
+//-----------------------------------------------------------------------------
+// DES support code for NTLM authentication.
+//
+// TODO(wtc): Turn this into a C++ API and move it to the base module.
+
+// Build a 64-bit DES key from a 56-bit raw key.
+void DESMakeKey(const uint8* raw, uint8* key);
+
+// Run the DES encryption algorithm in ECB mode on one block (8 bytes) of
+// data.  |key| is a DES key (8 bytes), |src| is the input plaintext (8
+// bytes), and |hash| is an 8-byte buffer receiving the output ciphertext.
+void DESEncrypt(const uint8* key, const uint8* src, uint8* hash);
+
+}  // namespace net
+
+#endif  // NET_HTTP_DES_H_