Qt Cryptographic Architecture: QCA::DHContext Class Reference

Qt Cryptographic Architecture

Public Member Functions | List of all members
QCA::DHContext Class Referenceabstract
QCA provider API

`#include <QtCrypto>`

Collaboration diagram for QCA::DHContext:
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## Public Member Functions
virtual void | createPrivate (const DLGroup &domain, bool block)=0
virtual void | createPrivate (const DLGroup &domain, const BigInteger &y, const BigInteger &x)=0
virtual void | createPublic (const DLGroup &domain, const BigInteger &y)=0
| DHContext (Provider *p)
virtual DLGroup | domain () const =0
virtual BigInteger | x () const =0
virtual BigInteger | y () const =0
Public Member Functions inherited from QCA::PKeyBase
virtual int | bits () const =0
virtual bool | canExport () const =0
virtual void | convertToPublic ()=0
virtual bool | decrypt (const SecureArray &in, SecureArray *out, EncryptionAlgorithm alg)
virtual SymmetricKey | deriveKey (const PKeyBase &theirs)
virtual SecureArray | encrypt (const SecureArray &in, EncryptionAlgorithm alg)
virtual QByteArray | endSign ()
virtual bool | endVerify (const QByteArray &sig)
virtual bool | isNull () const =0
virtual bool | isPrivate () const =0
virtual int | maximumEncryptSize (EncryptionAlgorithm alg) const
| PKeyBase (Provider *p, const QString &type)
virtual void | startSign (SignatureAlgorithm alg, SignatureFormat format)
virtual void | startVerify (SignatureAlgorithm alg, SignatureFormat format)
virtual PKey::Type | type () const =0
virtual void | update (const MemoryRegion &in)

## Additional Inherited Members
Signals inherited from QCA::PKeyBase
void | finished ()
Protected Member Functions inherited from QCA::BasicContext
| BasicContext (Provider *parent, const QString &type)
| BasicContext (const BasicContext &from)

## Detailed Description

Diffie-Hellman provider.

Note
  This class is part of the provider plugin interface and should not be used directly by applications. You probably want DHPublicKey or DHPrivateKey instead.

## Constructor & Destructor Documentation

## ◆ DHContext()

QCA::DHContext::DHContext | ( | Provider * | p | ) |
| inline

Standard constructor.

Parameters

  p | the provider associated with this context

## Member Function Documentation

## ◆ createPrivate() [1/2]

virtual void QCA::DHContext::createPrivate | ( | const DLGroup & | domain,
|  | bool | block
| ) |  |
| pure virtual

Generate a Diffie-Hellman private key.

If block is true, then this function blocks until completion. Otherwise, this function returns immediately and finished() is emitted when the operation completes.

If an error occurs during generation, then the operation will complete and isNull() will return true.

Parameters

  domain | the domain values to use for generation
  block | whether to use blocking mode

## ◆ createPrivate() [2/2]

virtual void QCA::DHContext::createPrivate | ( | const DLGroup & | domain,
|  | const BigInteger & | y,
|  | const BigInteger & | x
| ) |  |
| pure virtual

Create a Diffie-Hellman private key based on its numeric components.

Parameters

  domain | the domain values to use for generation
  y | the public Y component
  x | the private X component

## ◆ createPublic()

virtual void QCA::DHContext::createPublic | ( | const DLGroup & | domain,
|  | const BigInteger & | y
| ) |  |
| pure virtual

Create a Diffie-Hellman public key based on its numeric components.

Parameters

  domain | the domain values to use for generation
  y | the public Y component

## ◆ domain()

virtual DLGroup QCA::DHContext::domain | ( |  | ) | const
| pure virtual

Returns the public domain component of this Diffie-Hellman key.

## ◆ y()

virtual BigInteger QCA::DHContext::y | ( |  | ) | const
| pure virtual

Returns the public Y component of this Diffie-Hellman key.

## ◆ x()

virtual BigInteger QCA::DHContext::x | ( |  | ) | const
| pure virtual

Returns the private X component of this Diffie-Hellman key.

The documentation for this class was generated from the following file:

- qcaprovider.h