CRC2Decryptor Class Reference

class CRC2Decryptor : public CRC2

Concrete class for RC2 decryption.

Inherits from

Protected Member Functions
	CRC2Decryptor (void)

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 )
	CRC2::BlockSize()const
	CRC2::CRC2(void)
	CRC2::KeySize()const
	CRC2::Reset()
	CRC2::SetKey(const TDesC8 &,TInt)

CRC2Decryptor

(

void

)

[protected]

void

IMPORT_C CRC2Decryptor *	NewL	(	const TDesC8 &	aKey,
			TInt	aEffectiveKeyLenBits = KSSLCompatibilityBits
		)	[static]

Creates an instance of this class.

leave: KErrKeyNotWeakEnough If the key size is larger than that allowed by the cipher strength restrictions of the crypto library. See TCrypto::IsSymmetricWeakEnoughL()

const TDesC8 & aKey	The key to be used for decryption. The key length must fall between 1 and KRC2MaxKeySizeBytes (=128) bytes inclusive.
TInt aEffectiveKeyLenBits = KSSLCompatibilityBits	Effective key length bits (defaults KSSLCompatibilityBits = 1024).

IMPORT_C CRC2Decryptor *	NewLC	(	const TDesC8 &	aKey,
			TInt	aEffectiveKeyLenBits = KSSLCompatibilityBits
		)	[static]

Creates an instance of this class and leaves it on the cleanup stack.

leave: KErrKeyNotWeakEnough If the key size is larger than that allowed by the cipher strength restrictions of the crypto library. See TCrypto::IsSymmetricWeakEnoughL()

const TDesC8 & aKey	The key to be used for decryption. The key length must fall between 1 and KRC2MaxKeySizeBytes (=128) bytes inclusive.
TInt aEffectiveKeyLenBits = KSSLCompatibilityBits	Effective key length bits (defaults KSSLCompatibilityBits = 1024).

void

Transform

(

TDes8 &

aBlock

)

[virtual]

Transforms the supplied block, returning the new value using the same parameter. aBlock.Size() must be the same length as BlockSize() .

TDes8 & aBlock

On input, the data to be transformed; on return, the data after transformation.