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CRC2 Class Reference

class CRC2 : public CBlockTransformation

Abstract base class for RC2 encipherment.

Inherits from

CRC2
- CBlockTransformation
  - CBase

Public Member Functions
TInt	BlockSize ()
TInt	KeySize ()
void	Reset ()

Protected Member Functions
	CRC2 (void)
void	SetKey (const TDesC8 &, TInt )

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()
	CBlockTransformation::GetExtension(TUint,TAny &,TAny )
	CBlockTransformation::Transform(TDes8 &)

Protected Attributes
TInt	iEffectiveKeyLenBits
TUint16	iK
TBuf8 < KRC2MaxKeySizeBytes >	iKey

Constructor & Destructor Documentation

CRC2(void)

CRC2

(

void

)

[protected]

Parameters

void

Member Functions Documentation

BlockSize()

TInt

BlockSize

(

)

const [virtual]

Gets the block size in bytes.

KeySize()

TInt

KeySize

(

)

const [virtual]

Gets the key size in bits.

Reset()

void

Reset

(

)

[virtual]

Resets the transformation back to its original state. Clears all its buffers.

SetKey(const TDesC8 &, TInt)

void	SetKey	(	const TDesC8 &	aKey,
			TInt	aEffectiveKeyLenBits
		)	[protected, virtual]

Parameters

const TDesC8 & aKey
TInt aEffectiveKeyLenBits

Member Data Documentation

TInt iEffectiveKeyLenBits

TInt

iEffectiveKeyLenBits

[protected]

The effective key length in bits

TUint16 iK

TUint16

[protected]

The expanded key buffer.

Each iK[i] is a 16-bit word.

TBuf8< KRC2MaxKeySizeBytes > iKey

TBuf8 < KRC2MaxKeySizeBytes >

iKey

[protected]

The input key

The key length must fall between 1 and KRC2MaxKeySizeBytes (=128) bytes inclusive.