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// Copyright (C) 2013 Ruslan Nigmatullin <euroelessar@yandex.ru>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QMESSAGEAUTHENTICATIONCODE_H
#define QMESSAGEAUTHENTICATIONCODE_H
#include <QtCore/qcryptographichash.h>
QT_BEGIN_NAMESPACE
class QMessageAuthenticationCodePrivate;
class QIODevice;
// implemented in qcryptographichash.cpp
class Q_CORE_EXPORT QMessageAuthenticationCode
{
public:
#if QT_CORE_REMOVED_SINCE(6, 6)
explicit QMessageAuthenticationCode(QCryptographicHash::Algorithm method,
const QByteArray &key);
#endif
explicit QMessageAuthenticationCode(QCryptographicHash::Algorithm method,
QByteArrayView key = {});
QMessageAuthenticationCode(QMessageAuthenticationCode &&other) noexcept
: d{std::exchange(other.d, nullptr)} {}
~QMessageAuthenticationCode();
QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QMessageAuthenticationCode)
void swap(QMessageAuthenticationCode &other) noexcept
{ qt_ptr_swap(d, other.d); }
void reset() noexcept;
#if QT_CORE_REMOVED_SINCE(6, 6)
void setKey(const QByteArray &key);
#endif
void setKey(QByteArrayView key) noexcept;
void addData(const char *data, qsizetype length);
#if QT_CORE_REMOVED_SINCE(6, 6)
void addData(const QByteArray &data);
#endif
void addData(QByteArrayView data) noexcept;
bool addData(QIODevice *device);
QByteArrayView resultView() const noexcept;
QByteArray result() const;
#if QT_CORE_REMOVED_SINCE(6, 6)
static QByteArray hash(const QByteArray &message, const QByteArray &key,
QCryptographicHash::Algorithm method);
#endif
static QByteArray hash(QByteArrayView message, QByteArrayView key,
QCryptographicHash::Algorithm method);
static QByteArrayView
hashInto(QSpan<char> buffer, QByteArrayView message, QByteArrayView key,
QCryptographicHash::Algorithm method) noexcept
{ return hashInto(as_writable_bytes(buffer), {&message, 1}, key, method); }
static QByteArrayView
hashInto(QSpan<uchar> buffer, QByteArrayView message, QByteArrayView key,
QCryptographicHash::Algorithm method) noexcept
{ return hashInto(as_writable_bytes(buffer), {&message, 1}, key, method); }
static QByteArrayView
hashInto(QSpan<std::byte> buffer, QByteArrayView message,
QByteArrayView key, QCryptographicHash::Algorithm method) noexcept
{ return hashInto(buffer, {&message, 1}, key, method); }
static QByteArrayView
hashInto(QSpan<char> buffer, QSpan<const QByteArrayView> messageParts,
QByteArrayView key, QCryptographicHash::Algorithm method) noexcept
{ return hashInto(as_writable_bytes(buffer), messageParts, key, method); }
static QByteArrayView
hashInto(QSpan<uchar> buffer, QSpan<const QByteArrayView> messageParts,
QByteArrayView key, QCryptographicHash::Algorithm method) noexcept
{ return hashInto(as_writable_bytes(buffer), messageParts, key, method); }
static QByteArrayView
hashInto(QSpan<std::byte> buffer, QSpan<const QByteArrayView> message,
QByteArrayView key, QCryptographicHash::Algorithm method) noexcept;
private:
Q_DISABLE_COPY(QMessageAuthenticationCode)
QMessageAuthenticationCodePrivate *d;
};
QT_END_NAMESPACE
#endif
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