source: 3DVCSoftware/branches/HTM-6.2-dev1-Samsung/Lib/libmd5/MD5.h @ 347

Last change on this file since 347 was 347, checked in by samsung-htm, 11 years ago

D0122 Integration

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1/* The copyright in this software is being made available under the BSD
2 * License, included below. This software may be subject to other third party
3 * and contributor rights, including patent rights, and no such rights are
4 * granted under this license. 
5 *
6 * Copyright (c) 2010-2012, ITU/ISO/IEC
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 *
12 *  * Redistributions of source code must retain the above copyright notice,
13 *    this list of conditions and the following disclaimer.
14 *  * Redistributions in binary form must reproduce the above copyright notice,
15 *    this list of conditions and the following disclaimer in the documentation
16 *    and/or other materials provided with the distribution.
17 *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
18 *    be used to endorse or promote products derived from this software without
19 *    specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
32 */
33#pragma once
34#include "libmd5.h"
35
36//! \ingroup libMD5
37//! \{
38
39class MD5 {
40public:
41  /**
42   * initialize digest state
43   */
44  MD5()
45  {
46    MD5Init(&m_state);
47  }
48
49  /**
50   * compute digest over buf of length len.
51   * multiple calls may extend the digest over more data.
52   */
53  void update(unsigned char *buf, unsigned len)
54  {
55    MD5Update(&m_state, buf, len);
56  }
57
58  /**
59   * flush any outstanding MD5 data, write the digest into digest.
60   */
61  void finalize(unsigned char digest[16])
62  {
63    MD5Final(digest, &m_state);
64  }
65
66private:
67  context_md5_t m_state;
68};
69
70/**
71 * Produce an ascii(hex) representation of the 128bit digest.
72 *
73 * Returns: a statically allocated null-terminated string.  DO NOT FREE.
74 */
75inline const char*
76digestToString(unsigned char digest[16])
77{
78  const char* hex = "0123456789abcdef";
79  static char string[33];
80  for (int i = 0; i < 16; i++)
81  {
82    string[i*2+0] = hex[digest[i] >> 4];
83    string[i*2+1] = hex[digest[i] & 0xf];
84  }
85  return string;
86}
87//! \}
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