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39 lines
1,022 B
C++
39 lines
1,022 B
C++
/*
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* Use GnuTLS for hashing as their code is more optimized than Qt's
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*
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* SPDX-License-Identifier: Apache-2.0
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* Copyright (C) 2022 Raspberry Pi Ltd
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*/
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#include "acceleratedcryptographichash.h"
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AcceleratedCryptographicHash::AcceleratedCryptographicHash(QCryptographicHash::Algorithm method)
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{
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if (method != QCryptographicHash::Sha256)
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throw std::runtime_error("Only sha256 implemented");
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gnutls_hash_init(&_sha256, GNUTLS_DIG_SHA256);
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}
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AcceleratedCryptographicHash::~AcceleratedCryptographicHash()
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{
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gnutls_hash_deinit(_sha256, NULL);
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}
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void AcceleratedCryptographicHash::addData(const char *data, int length)
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{
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gnutls_hash(_sha256, data, length);
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}
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void AcceleratedCryptographicHash::addData(const QByteArray &data)
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{
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addData(data.constData(), data.size());
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}
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QByteArray AcceleratedCryptographicHash::result()
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{
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unsigned char binhash[gnutls_hash_get_len(GNUTLS_DIG_SHA256)];
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gnutls_hash_output(_sha256, binhash);
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return QByteArray((char *) binhash, sizeof binhash);
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}
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