SameKeyLengthAs< T, IV_REQ, IV_L > Class Template Reference

Provides key lengths based on another class's key length. More...

#include <seckey.h>

Inheritance diagram for SameKeyLengthAs< T, IV_REQ, IV_L >:

Static Public Member Functions
static size_t	StaticGetValidKeyLength (size_t keylength)
	Provides a valid key length for the algorithm provided by a static function. More...

Static Public Attributes
static const int	MIN_KEYLENGTH =T::MIN_KEYLENGTH
	The minimum key length used by the algorithm provided as a constant. More...
static const int	MAX_KEYLENGTH =T::MAX_KEYLENGTH
	The maximum key length used by the algorithm provided as a constant. More...
static const int	DEFAULT_KEYLENGTH =T::DEFAULT_KEYLENGTH
	The default key length used by the algorithm provided as a constant. More...
static const int	IV_REQUIREMENT =IV_REQ
	The default IV requirements for the algorithm provided as a constant. More...
static const int	IV_LENGTH =IV_L
	The default initialization vector length for the algorithm provided as a constant. More...

Detailed Description

template<class T, unsigned int IV_REQ = SimpleKeyingInterface::NOT_RESYNCHRONIZABLE, unsigned int IV_L = 0>
class SameKeyLengthAs< T, IV_REQ, IV_L >

Provides key lengths based on another class's key length.

Template Parameters

T	another FixedKeyLength or VariableKeyLength class
IV_REQ	the IV requirements
IV_L	default IV length, in bytes

See also

SimpleKeyingInterface

Definition at line 217 of file seckey.h.

Member Function Documentation

StaticGetValidKeyLength()

template<class T , unsigned int IV_REQ = SimpleKeyingInterface::NOT_RESYNCHRONIZABLE, unsigned int IV_L = 0>

static size_t SameKeyLengthAs< T, IV_REQ, IV_L >::StaticGetValidKeyLength ( size_t  keylength )

inlinestatic

Provides a valid key length for the algorithm provided by a static function.

Parameters

keylength

the size of the key, in bytes

If keylength is less than MIN_KEYLENGTH, then the function returns MIN_KEYLENGTH. If keylength is greater than MAX_KEYLENGTH, then the function returns MAX_KEYLENGTH. If keylength is a multiple of KEYLENGTH_MULTIPLE, then keylength is returned. Otherwise, the function returns keylength rounded down to the next smaller multiple of KEYLENGTH_MULTIPLE.

keylength is provided in bytes, not bits.

Definition at line 244 of file seckey.h.

Member Data Documentation

MIN_KEYLENGTH

template<class T , unsigned int IV_REQ = SimpleKeyingInterface::NOT_RESYNCHRONIZABLE, unsigned int IV_L = 0>

const int SameKeyLengthAs< T, IV_REQ, IV_L >::MIN_KEYLENGTH =T::MIN_KEYLENGTH

static

The minimum key length used by the algorithm provided as a constant.

MIN_KEYLENGTH is provided in bytes, not bits

Definition at line 222 of file seckey.h.

MAX_KEYLENGTH

template<class T , unsigned int IV_REQ = SimpleKeyingInterface::NOT_RESYNCHRONIZABLE, unsigned int IV_L = 0>

const int SameKeyLengthAs< T, IV_REQ, IV_L >::MAX_KEYLENGTH =T::MAX_KEYLENGTH

static

The maximum key length used by the algorithm provided as a constant.

MIN_KEYLENGTH is provided in bytes, not bits

Definition at line 225 of file seckey.h.

DEFAULT_KEYLENGTH

template<class T , unsigned int IV_REQ = SimpleKeyingInterface::NOT_RESYNCHRONIZABLE, unsigned int IV_L = 0>

const int SameKeyLengthAs< T, IV_REQ, IV_L >::DEFAULT_KEYLENGTH =T::DEFAULT_KEYLENGTH

static

The default key length used by the algorithm provided as a constant.

MIN_KEYLENGTH is provided in bytes, not bits

Definition at line 228 of file seckey.h.

IV_REQUIREMENT

template<class T , unsigned int IV_REQ = SimpleKeyingInterface::NOT_RESYNCHRONIZABLE, unsigned int IV_L = 0>

const int SameKeyLengthAs< T, IV_REQ, IV_L >::IV_REQUIREMENT =IV_REQ

static

The default IV requirements for the algorithm provided as a constant.

The default value is NOT_RESYNCHRONIZABLE. See IV_Requirement in cryptlib.h for allowed values.

Definition at line 232 of file seckey.h.

IV_LENGTH

template<class T , unsigned int IV_REQ = SimpleKeyingInterface::NOT_RESYNCHRONIZABLE, unsigned int IV_L = 0>

const int SameKeyLengthAs< T, IV_REQ, IV_L >::IV_LENGTH =IV_L

static

The default initialization vector length for the algorithm provided as a constant.

IV_LENGTH is provided in bytes, not bits. The default implementation uses 0.

Definition at line 235 of file seckey.h.

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

• seckey.h