内容

• 公共类型
• 公共函数
• 静态公共成员
• 相关非成员
• 详细描述

QSslDiffieHellmanParameters Class

The QSslDiffieHellmanParameters class provides an interface for Diffie-Hellman parameters for servers. 更多...

头：	#include <QSslDiffieHellmanParameters>
CMake:	find_package(Qt6 COMPONENTS Network REQUIRED) target_link_libraries(mytarget PRIVATE Qt6::Network)
qmake:	QT += network
Since:	Qt 5.8

• 所有成员列表，包括继承成员

注意： 此类的所有函数 可重入 .

公共类型

enum	Error { NoError, InvalidInputDataError, UnsafeParametersError }

公共函数

	QSslDiffieHellmanParameters (QSslDiffieHellmanParameters && other )
	QSslDiffieHellmanParameters (const QSslDiffieHellmanParameters & other )
	QSslDiffieHellmanParameters ()
QSslDiffieHellmanParameters &	operator= (QSslDiffieHellmanParameters && other )
QSslDiffieHellmanParameters &	operator= (const QSslDiffieHellmanParameters & other )
	~QSslDiffieHellmanParameters ()
QSslDiffieHellmanParameters::Error	error () const
QString	errorString () const
bool	isEmpty () const
bool	isValid () const
void	swap (QSslDiffieHellmanParameters & other )

静态公共成员

QSslDiffieHellmanParameters	defaultParameters ()
QSslDiffieHellmanParameters	fromEncoded (const QByteArray & encoded , QSsl::EncodingFormat encoding = QSsl::Pem)
QSslDiffieHellmanParameters	fromEncoded (QIODevice * device , QSsl::EncodingFormat encoding = QSsl::Pem)

相关非成员

size_t	qHash (const QSslDiffieHellmanParameters & dhparam , size_t seed = 0)
bool	operator!= (const QSslDiffieHellmanParameters & lhs , const QSslDiffieHellmanParameters & rhs )
QDebug	operator<< (QDebug debug , const QSslDiffieHellmanParameters & dhparam )
bool	operator== (const QSslDiffieHellmanParameters & lhs , const QSslDiffieHellmanParameters & rhs )

详细描述

QSslDiffieHellmanParameters provides an interface for setting Diffie-Hellman parameters to servers based on QSslSocket .

另请参阅 QSslSocket , QSslCipher ，和 QSslConfiguration .

成员类型文档编制

enum QSslDiffieHellmanParameters:: Error

Describes a QSslDiffieHellmanParameters 错误。

常量	值	描述
QSslDiffieHellmanParameters::NoError	0	没有出现错误。
QSslDiffieHellmanParameters::InvalidInputDataError	1	The given input data could not be used to construct a QSslDiffieHellmanParameters 对象。
QSslDiffieHellmanParameters::UnsafeParametersError	2	The Diffie-Hellman parameters are unsafe and should not be used.

成员函数文档编制

QSslDiffieHellmanParameters:: QSslDiffieHellmanParameters ( QSslDiffieHellmanParameters && other )

Move-constructs from other .

注意： The moved-from object other is placed in a partially-formed state, in which the only valid operations are destruction and assignment of a new value.

QSslDiffieHellmanParameters:: QSslDiffieHellmanParameters (const QSslDiffieHellmanParameters & other )

Constructs an identical copy of other .

QSslDiffieHellmanParameters:: QSslDiffieHellmanParameters ()

Constructs an empty QSslDiffieHellmanParameters instance.

If an empty QSslDiffieHellmanParameters instance is set on a QSslConfiguration object, Diffie-Hellman negotiation will be disabled.

另请参阅 isValid () 和 QSslConfiguration .

QSslDiffieHellmanParameters &QSslDiffieHellmanParameters:: operator= ( QSslDiffieHellmanParameters && other )

移动赋值 other 到此 QSslDiffieHellmanParameters 实例。

注意： The moved-from object other is placed in a partially-formed state, in which the only valid operations are destruction and assignment of a new value.

QSslDiffieHellmanParameters &QSslDiffieHellmanParameters:: operator= (const QSslDiffieHellmanParameters & other )

Copies the contents of other 到此 QSslDiffieHellmanParameters , making the two QSslDiffieHellmanParameters identical.

Returns a reference to this QSslDiffieHellmanParameters .

QSslDiffieHellmanParameters:: ~QSslDiffieHellmanParameters ()

销毁 QSslDiffieHellmanParameters 对象。

[static] QSslDiffieHellmanParameters QSslDiffieHellmanParameters:: defaultParameters ()

Returns the default QSslDiffieHellmanParameters used by QSslSocket .

This is currently the 1024-bit MODP group from RFC 2459, also known as the Second Oakley Group.

QSslDiffieHellmanParameters::Error QSslDiffieHellmanParameters:: error () const

Returns the error that caused the QSslDiffieHellmanParameters object to be invalid.

QString QSslDiffieHellmanParameters:: errorString () const

Returns a human-readable description of the error that caused the QSslDiffieHellmanParameters object to be invalid.

[static] QSslDiffieHellmanParameters QSslDiffieHellmanParameters:: fromEncoded (const QByteArray & encoded , QSsl::EncodingFormat encoding = QSsl::Pem)

构造 QSslDiffieHellmanParameters object using the byte array encoded in either PEM or DER form as specified by encoding .

使用 isValid () method on the returned object to check whether the Diffie-Hellman parameters were valid and loaded correctly.

另请参阅 isValid () 和 QSslConfiguration .

[static] QSslDiffieHellmanParameters QSslDiffieHellmanParameters:: fromEncoded ( QIODevice * device , QSsl::EncodingFormat encoding = QSsl::Pem)

构造 QSslDiffieHellmanParameters object by reading from device in either PEM or DER form as specified by encoding .

使用 isValid () method on the returned object to check whether the Diffie-Hellman parameters were valid and loaded correctly.

In particular, if device is nullptr or not open for reading, an invalid object will be returned.

另请参阅 isValid () 和 QSslConfiguration .

bool QSslDiffieHellmanParameters:: isEmpty () const

返回 true if this is a an empty QSslDiffieHellmanParameters 实例。

设置空 QSslDiffieHellmanParameters instance on a QSslSocket -based server will disable Diffie-Hellman key exchange.

bool QSslDiffieHellmanParameters:: isValid () const

返回 true if this is a valid QSslDiffieHellmanParameters ；否则 false。

This method should be used after constructing a QSslDiffieHellmanParameters object to determine its validity.

若 QSslDiffieHellmanParameters object is not valid, you can use the error () method to determine what error prevented the object from being constructed.

另请参阅 error ().

void QSslDiffieHellmanParameters:: swap ( QSslDiffieHellmanParameters & other )

交换此 QSslDiffieHellmanParameters with other 。此函数非常快且从不失败。

相关非成员

[since 5.8] size_t qHash (const QSslDiffieHellmanParameters & dhparam , size_t seed = 0)

Returns an hash value for dhparam ，使用 seed 做计算种子。

该函数在 Qt 5.8 引入。

[since 5.8] bool operator!= (const QSslDiffieHellmanParameters & lhs , const QSslDiffieHellmanParameters & rhs )

返回 true if lhs 不等于 rhs ；否则返回 false .

该函数在 Qt 5.8 引入。

[since 5.8] QDebug operator<< ( QDebug debug , const QSslDiffieHellmanParameters & dhparam )

Writes the set of Diffie-Hellman parameters in dhparam 到 debug 对象 debug 为调试目的。

The Diffie-Hellman parameters will be represented in Base64-encoded DER form.

该函数在 Qt 5.8 引入。

另请参阅 调试技术 .

[since 5.8] bool operator== (const QSslDiffieHellmanParameters & lhs , const QSslDiffieHellmanParameters & rhs )

返回 true if lhs 等于 rhs ；否则返回 false .

该函数在 Qt 5.8 引入。