class QSslDiffieHellmanParameters¶

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

Synopsis¶

Methods¶

def __init__()
def error()
def errorString()
def isEmpty()
def isValid()
def __ne__()
def __eq__()
def swap()

Static functions¶

def defaultParameters()
def fromEncoded()

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

Detailed Description¶

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

See also

QSslSocket QSslCipher QSslConfiguration

class Error¶

Describes a QSslDiffieHellmanParameters error.

Constant

Description

QSslDiffieHellmanParameters.NoError

No error occurred.

QSslDiffieHellmanParameters.InvalidInputDataError

The given input data could not be used to construct a QSslDiffieHellmanParameters object.

QSslDiffieHellmanParameters.UnsafeParametersError

The Diffie-Hellman parameters are unsafe and should not be used.

Constant	Description
QSslDiffieHellmanParameters.NoError	No error occurred.
QSslDiffieHellmanParameters.InvalidInputDataError	The given input data could not be used to construct a `QSslDiffieHellmanParameters` object.
QSslDiffieHellmanParameters.UnsafeParametersError	The Diffie-Hellman parameters are unsafe and should not be used.

__init__()¶

Constructs an empty QSslDiffieHellmanParameters instance.

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

See also

isValid() QSslConfiguration

__init__(other)

Parameters:: other – QSslDiffieHellmanParameters

Constructs an identical copy of other.

static defaultParameters()¶

Return type:: QSslDiffieHellmanParameters

Returns the default QSslDiffieHellmanParameters used by QSslSocket .

This is currently the 2048-bit MODP group from RFC 3526.

error()¶

Return type:: Error

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

errorString()¶

Return type:: str

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

static fromEncoded(device[, format=QSsl.Pem])¶

Parameters:

device – QIODevice
format – EncodingFormat

Return type:

QSslDiffieHellmanParameters

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 None or not open for reading, an invalid object will be returned.

See also

isValid() QSslConfiguration

static fromEncoded(encoded[, format=QSsl.Pem])

Parameters:

encoded – QByteArray
format – EncodingFormat

Return type:

QSslDiffieHellmanParameters

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

isValid() QSslConfiguration

isEmpty()¶

Return type:: bool

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.

isValid()¶

Return type:: bool

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

error()

__ne__(rhs)¶

Parameters:: rhs – QSslDiffieHellmanParameters
Return type:: bool

Returns true if lhs is not equal to rhs; otherwise returns false.

__eq__(rhs)¶

Parameters:: rhs – QSslDiffieHellmanParameters
Return type:: bool

Returns true if lhs is equal to rhs; otherwise returns false.

swap(other)¶

Parameters:: other – QSslDiffieHellmanParameters

Swaps this QSslDiffieHellmanParameters with other. This function is very fast and never fails.