QSslDiffieHellmanParameters Class

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

頭: #include <QSslDiffieHellmanParameters>
qmake: QT += network
Since: Qt 5.8

注意: 此類的所有函數 可重入 .

公共類型

enum Error { NoError, InvalidInputDataError, UnsafeParametersError }

公共函數

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

靜態公共成員

QSslDiffieHellmanParameters defaultParameters ()
QSslDiffieHellmanParameters fromEncoded (const QByteArray & encoded , QSsl::EncodingFormat encoding = QSsl::Pem)
QSslDiffieHellmanParameters fromEncoded (QIODevice * device , QSsl::EncodingFormat encoding = QSsl::Pem)
uint qHash (const QSslDiffieHellmanParameters & dhparam , uint seed = 0)
QDebug operator<< (QDebug debug , const QSslDiffieHellmanParameters & dhparam )
bool operator== (const QSslDiffieHellmanParameters & lhs , const QSslDiffieHellmanParameters & rhs )

詳細描述

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

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

另請參閱 QSslSocket , QSslCipher ,和 QSslConfiguration .

成員類型文檔編製

enum QSslDiffieHellmanParameters:: Error

Describes a QSslDiffieHellmanParameters 錯誤。

常量 描述
QSslDiffieHellmanParameters::NoError 0 沒有齣現錯誤。
QSslDiffieHellmanParameters::InvalidInputDataError 1 The given input data could not be used to construct a QSslDiffieHellmanParameters 對象。
QSslDiffieHellmanParameters::UnsafeParametersError 2 The Diffie-Hellman parameters are unsafe and should not be used.

成員函數文檔編製

QSslDiffieHellmanParameters:: QSslDiffieHellmanParameters ()

構造空的 QSslDiffieHellmanParameters 實例。

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

另請參閱 isValid () 和 QSslConfiguration .

QSslDiffieHellmanParameters:: QSslDiffieHellmanParameters (const QSslDiffieHellmanParameters & other )

Constructs an identical copy of other .

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 ()

銷毀 QSslDiffieHellmanParameters 對象。

[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)

構造 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.

另請參閱 isValid () 和 QSslConfiguration .

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

構造 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.

另請參閱 isValid () 和 QSslConfiguration .

bool QSslDiffieHellmanParameters:: isEmpty () const

返迴 true if this is a an empty QSslDiffieHellmanParameters 實例。

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

bool QSslDiffieHellmanParameters:: isValid () const

返迴 true if this is a valid QSslDiffieHellmanParameters ;否則 false。

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

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

另請參閱 error ().

void QSslDiffieHellmanParameters:: swap ( QSslDiffieHellmanParameters & other )

交換此 QSslDiffieHellmanParameters with other 。此函數非常快且從不失敗。

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:: operator= ( QSslDiffieHellmanParameters && other )

移動賦值 other 到此 QSslDiffieHellmanParameters 實例。

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.

相關非成員

uint qHash (const QSslDiffieHellmanParameters & dhparam , uint seed = 0)

Returns an hash value for dhparam ,使用 seed 做計算種子。

該函數在 Qt 5.8 引入。

QDebug operator<< ( QDebug debug , const QSslDiffieHellmanParameters & dhparam )

Writes the set of Diffie-Hellman parameters in dhparam 到 debug 對象 debug 為調試目的。

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

該函數在 Qt 5.8 引入。

另請參閱 調試技術 .

bool operator== (const QSslDiffieHellmanParameters & lhs , const QSslDiffieHellmanParameters & rhs )

返迴 true if lhs 等於 rhs ;否則返迴 false .

該函數在 Qt 5.8 引入。