QCA::BufferedComputation Class Reference

General superclass for buffered computation algorithms. More...

#include <QtCrypto>

Inheritance diagram for QCA::BufferedComputation:

QCA::Hash QCA::MessageAuthenticationCode List of all members.

Public Member Functions

virtual void clear ()=0
virtual void update (const MemoryRegion &a)=0
virtual MemoryRegion final ()=0
MemoryRegion process (const MemoryRegion &a)

Detailed Description

General superclass for buffered computation algorithms.

A buffered computation is characterised by having the algorithm take data in an incremental way, then having the results delivered at the end. Conceptually, the algorithm has some internal state that is modified when you call update() and returned when you call final().


Member Function Documentation

virtual void QCA::BufferedComputation::clear  )  [pure virtual]
 

Reset the internal state.

Implemented in QCA::Hash, and QCA::MessageAuthenticationCode.

virtual void QCA::BufferedComputation::update const MemoryRegion a  )  [pure virtual]
 

Update the internal state with a byte array.

Parameters:
a the byte array of data that is to be used to update the internal state.

Implemented in QCA::Hash, and QCA::MessageAuthenticationCode.

virtual MemoryRegion QCA::BufferedComputation::final  )  [pure virtual]
 

Complete the algorithm and return the internal state.

Implemented in QCA::Hash, and QCA::MessageAuthenticationCode.

MemoryRegion QCA::BufferedComputation::process const MemoryRegion a  ) 
 

Perform an "all in one" update, returning the result.

This is appropriate if you have all the data in one array - just call process on that array, and you will get back the results of the computation.

Note:
This will invalidate any previous computation using this object.


The documentation for this class was generated from the following file:
Generated on Fri Jul 6 13:23:43 2007 for Qt Cryptographic Architecture by  doxygen 1.4.6