QCA::KeyLength Class Reference

#include <QtCrypto>

Public Member Functions
	KeyLength (int min, int max, int multiple)
int	maximum () const
int	minimum () const
int	multiple () const

Detailed Description

Simple container for acceptable key lengths

The KeyLength specifies the minimum and maximum byte sizes allowed for a key, as well as a "multiple" which the key size must evenly divide into.

As an example, if the key can be 4, 8 or 12 bytes, you can express this as

KeyLength keyLen( 4, 12, 4 );

If you want to express a KeyLength that takes any number of bytes (including zero), you may want to use

#include<limits>
KeyLength( 0, std::numeric_limits<int>::max(), 1 );

Examples

aes-cmac.cpp.

Definition at line 700 of file qca_core.h.

Constructor & Destructor Documentation

KeyLength()

QCA::KeyLength::KeyLength ( int  min, int  max, int  multiple  )

inline

Construct a KeyLength object.

Parameters

min	the minimum length of the key, in bytes
max	the maximum length of the key, in bytes
multiple	the number of bytes that the key must be a multiple of.

Definition at line 711 of file qca_core.h.

Member Function Documentation

maximum()

int QCA::KeyLength::maximum ( ) const

inline

Obtain the maximum length for the key, in bytes.

Definition at line 729 of file qca_core.h.

minimum()

int QCA::KeyLength::minimum ( ) const

inline

Obtain the minimum length for the key, in bytes.

Definition at line 721 of file qca_core.h.

multiple()

int QCA::KeyLength::multiple ( ) const

inline

Return the number of bytes that the key must be a multiple of.

If this is one, then anything between minimum and maximum (inclusive) is acceptable.

Definition at line 740 of file qca_core.h.

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

• qca_core.h