Some clean-up and simplification for JobObject class.
[MUtilities.git] / src / Hash_Blake2.cpp
blob0c85c4796fd18ce3e803c4080fa485f4fe0ad0a2
1 ///////////////////////////////////////////////////////////////////////////////
2 // Simple x264 Launcher
3 // Copyright (C) 2004-2016 LoRd_MuldeR <MuldeR2@GMX.de>
4 //
5 // This program is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
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9 //
10 // This program is distributed in the hope that it will be useful,
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13 // GNU General Public License for more details.
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16 // with this program; if not, write to the Free Software Foundation, Inc.,
17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 // http://www.gnu.org/licenses/gpl-2.0.txt
20 ///////////////////////////////////////////////////////////////////////////////
23 BLAKE2 reference source code package - reference C implementations
25 Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
27 To the extent possible under law, the author(s) have dedicated all copyright
28 and related and neighboring rights to this software to the public domain
29 worldwide. This software is distributed without any warranty.
31 You should have received a copy of the CC0 Public Domain Dedication along with
32 this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
35 #include "Hash_Blake2.h"
37 //MUtils
38 #include <MUtils/Exception.h>
40 //Internal
41 #include "3rd_party/blake2/include/blake2.h"
43 #include <malloc.h>
44 #include <string.h>
45 #include <stdexcept>
47 static const size_t HASH_SIZE = 64;
49 class MUtils::Hash::Blake2_Context
51 friend Blake2;
53 Blake2_Context(void)
55 if(!(state = (MUtils::Hash::Internal::Blake2Impl::blake2b_state*) _aligned_malloc(sizeof(MUtils::Hash::Internal::Blake2Impl::blake2b_state), HASH_SIZE)))
57 MUTILS_THROW("Aligend malloc has failed!");
59 memset(state, 0, sizeof(MUtils::Hash::Internal::Blake2Impl::blake2b_state));
62 ~Blake2_Context(void)
64 memset(state, 0, sizeof(MUtils::Hash::Internal::Blake2Impl::blake2b_state));
65 _aligned_free(state);
68 private:
69 MUtils::Hash::Internal::Blake2Impl::blake2b_state *state;
72 MUtils::Hash::Blake2::Blake2(const char *const key)
74 m_context(new Blake2_Context()),
75 m_finalized(false)
77 if(key && key[0])
79 blake2b_init_key(m_context->state, HASH_SIZE, key, (uint8_t)strlen(key));
81 else
83 blake2b_init(m_context->state, HASH_SIZE);
87 MUtils::Hash::Blake2::~Blake2(void)
89 delete m_context;
92 bool MUtils::Hash::Blake2::process(const quint8 *const data, const quint32 len)
94 if(m_finalized)
96 MUTILS_THROW("BLAKE2 was already finalized!");
99 if(data && (len > 0))
101 if(blake2b_update(m_context->state, data, len) != 0)
103 MUTILS_THROW("BLAKE2 internal error!");
107 return true;
110 QByteArray MUtils::Hash::Blake2::finalize(void)
112 QByteArray result(HASH_SIZE, '\0');
113 if(blake2b_final(m_context->state, (uint8_t*) result.data(), result.size()) != 0)
115 MUTILS_THROW("BLAKE2 internal error!");
117 m_finalized = true;
118 return result;