2 Copyright (C) 2014-2021 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
23 #include "dcpomatic_assert.h"
24 #include <nettle/md5.h>
41 Digester::~Digester ()
48 Digester::add (void const * data, size_t size)
50 md5_update (&_context, size, reinterpret_cast<uint8_t const *>(data));
55 Digester::add (string const & s)
57 add (s.c_str(), s.length());
62 Digester::get () const
65 unsigned char digest[MD5_DIGEST_SIZE];
66 md5_digest (&_context, MD5_DIGEST_SIZE, digest);
68 char hex[MD5_DIGEST_SIZE * 2 + 1];
69 for (int i = 0; i < MD5_DIGEST_SIZE; ++i) {
70 sprintf(hex + i * 2, "%02x", digest[i]);
76 return _digest.get ();
81 Digester::get (uint8_t* buffer) const
83 md5_digest (&_context, MD5_DIGEST_SIZE, buffer);
88 Digester::size () const
90 return MD5_DIGEST_SIZE;