QSslDiffieHellmanParameters Class▲
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Header: QSslDiffieHellmanParameters
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Since: Qt 5.8
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CMake:
find_package(Qt6 REQUIRED COMPONENTS Network)
target_link_libraries(mytarget PRIVATE Qt6::Network)
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qmake: QT += network
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Group: QSslDiffieHellmanParameters is part of Network Programming API, ssl, shared
Detailed Description▲
QSslDiffieHellmanParameters provides an interface for setting Diffie-Hellman parameters to servers based on QSslSocket.
See Also▲
See also QSslSocket, QSslCipher, QSslConfiguration
Member Type Documentation▲
enum QSslDiffieHellmanParameters::Error▲
Describes a QSslDiffieHellmanParameters error.
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Constant |
Value |
Description |
|---|---|---|
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QSslDiffieHellmanParameters::NoError |
0 |
No error occurred. |
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QSslDiffieHellmanParameters::InvalidInputDataError |
1 |
The given input data could not be used to construct a QSslDiffieHellmanParameters object. |
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QSslDiffieHellmanParameters::UnsafeParametersError |
2 |
The Diffie-Hellman parameters are unsafe and should not be used. |
Member Function Documentation▲
QSslDiffieHellmanParameters::QSslDiffieHellmanParameters()▲
Constructs an empty QSslDiffieHellmanParameters instance.
If an empty QSslDiffieHellmanParameters instance is set on a QSslConfiguration object, Diffie-Hellman negotiation will be disabled.
See Also▲
See also isValid(), QSslConfiguration
QSslDiffieHellmanParameters::QSslDiffieHellmanParameters(const QSslDiffieHellmanParameters &other)▲
Constructs an identical copy of other.
QSslDiffieHellmanParameters::QSslDiffieHellmanParameters(QSslDiffieHellmanParameters &&other)▲
Move-constructs from other.
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()▲
Destroys the QSslDiffieHellmanParameters object.
[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)▲
Constructs a QSslDiffieHellmanParameters object using the byte array encoded in either PEM or DER form as specified by encoding.
Use the isValid() method on the returned object to check whether the Diffie-Hellman parameters were valid and loaded correctly.
See Also▲
See also isValid(), QSslConfiguration
[static] QSslDiffieHellmanParameters QSslDiffieHellmanParameters::fromEncoded(QIODevice *device, QSsl::EncodingFormat encoding = QSsl::Pem)▲
Constructs a QSslDiffieHellmanParameters object by reading from device in either PEM or DER form as specified by encoding.
Use the 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.
See Also▲
See also isValid(), QSslConfiguration
bool QSslDiffieHellmanParameters::isEmpty() const▲
Returns true if this is a an empty QSslDiffieHellmanParameters instance.
Setting an empty QSslDiffieHellmanParameters instance on a QSslSocket-based server will disable Diffie-Hellman key exchange.
bool QSslDiffieHellmanParameters::isValid() const▲
Returns true if this is a valid QSslDiffieHellmanParameters; otherwise false.
This method should be used after constructing a QSslDiffieHellmanParameters object to determine its validity.
If a QSslDiffieHellmanParameters object is not valid, you can use the error() method to determine what error prevented the object from being constructed.
See Also▲
See also error()
void QSslDiffieHellmanParameters::swap(QSslDiffieHellmanParameters &other)▲
Swaps this QSslDiffieHellmanParameters with other. This function is very fast and never fails.
QSslDiffieHellmanParameters &QSslDiffieHellmanParameters::operator=(const QSslDiffieHellmanParameters &other)▲
Copies the contents of other into this QSslDiffieHellmanParameters, making the two QSslDiffieHellmanParameters identical.
Returns a reference to this QSslDiffieHellmanParameters.
QSslDiffieHellmanParameters &QSslDiffieHellmanParameters::operator=(QSslDiffieHellmanParameters &&other)▲
Move-assigns other to this QSslDiffieHellmanParameters instance.
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.
Related Non-Members▲
[since 5.8] size_t qHash(const QSslDiffieHellmanParameters &dhparam, size_t seed = 0)▲
Returns an hash value for dhparam, using seed to seed the calculation.
This function was introduced in Qt 5.8.
[since 5.8] bool operator!=(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs)▲
Returns true if lhs is not equal to rhs; otherwise returns false.
This function was introduced in Qt 5.8.
[since 5.8] QDebug operator<<(QDebug debug, const QSslDiffieHellmanParameters &dhparam)▲
Writes the set of Diffie-Hellman parameters in dhparam into the debug object debug for debugging purposes.
The Diffie-Hellman parameters will be represented in Base64-encoded DER form.
This function was introduced in Qt 5.8.
See Also▲
See also Debugging Techniques
[since 5.8] bool operator==(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs)▲
Returns true if lhs is equal to rhs; otherwise returns false.
This function was introduced in Qt 5.8.