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QCA::CipherContext Class Referenceabstract

#include <QtCrypto>

Inheritance diagram for QCA::CipherContext:

Public Member Functions

 CipherContext (Provider *p, const QString &type)
virtual int blockSize () const =0
virtual bool final (SecureArray *out)=0
virtual KeyLength keyLength () const =0
virtual void setup (Direction dir, const SymmetricKey &key, const InitializationVector &iv, const AuthTag &tag)=0
virtual AuthTag tag () const =0
virtual bool update (const SecureArray &in, SecureArray *out)=0

Additional Inherited Members

- Protected Member Functions inherited from QCA::BasicContext
 BasicContext (Provider *parent, const QString &type)
 BasicContext (const BasicContext &from)

Detailed Description

Cipher provider.

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

Definition at line 227 of file qcaprovider.h.

Constructor & Destructor Documentation

QCA::CipherContext::CipherContext ( Provider p,
const QString type 

Standard constructor.

pthe provider associated with this context
typethe name of the type of cipher provided by this context
type includes the name of the cipher (e.g. "aes256"), the operating mode (e.g. "cbc" or "ofb") and the padding type (e.g. "pkcs7") if any.

Definition at line 240 of file qcaprovider.h.

Member Function Documentation

virtual int QCA::CipherContext::blockSize ( ) const
pure virtual

Returns the block size for this cipher.

virtual bool QCA::CipherContext::final ( SecureArray out)
pure virtual

Finish the cipher processing.

Returns true if successful.

outpointer to an array that should store the result
virtual KeyLength QCA::CipherContext::keyLength ( ) const
pure virtual

Returns the KeyLength for this cipher.

virtual void QCA::CipherContext::setup ( Direction  dir,
const SymmetricKey key,
const InitializationVector iv,
const AuthTag tag 
pure virtual

Set up the object for encrypt/decrypt.

dirthe direction for the cipher (encryption/decryption)
keythe symmetric key to use for the cipher
ivthe initialization vector to use for the cipher (not used in ECB mode)
tagthe AuthTag to use (only for GCM and CCM modes)
virtual AuthTag QCA::CipherContext::tag ( ) const
pure virtual

Returns the authentication tag for this cipher.

virtual bool QCA::CipherContext::update ( const SecureArray in,
SecureArray out 
pure virtual

Process a chunk of data.

Returns true if successful.

inthe input data to process
outpointer to an array that should store the result

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