C3DESDecryptor Class Reference

class C3DESDecryptor : public C3DES

Concrete class for triple-DES decryption.

Inherits from

Public Member Functions
IMPORT_C C3DESDecryptor *	NewL (const TDesC8 &)
IMPORT_C C3DESDecryptor *	NewLC (const TDesC8 &)

Protected Member Functions
void	DoSetKey (const TDesC8 &)

Inherited Functions
	C3DES::BlockSize()const
	C3DES::C3DES()
	C3DES::ConstructL(const TDesC8 &)
	C3DES::KeySize()const
	C3DES::Reset()
	C3DES::Transform(TDes8 &)
	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 )
	CDES::CDES()
	CDES::ConstructL(const TDesC8 &,TBool)
	CDES::DoTransform(TUint32 &,TUint32 &,const TUint32 *)
	CDES::IsWeakKey(const TDesC8 &)
	CDES::SetKey(const TDesC8 &,TUint32 *)
	CDES::~CDES()

void

DoSetKey

(

const TDesC8 &

aKey

)

[protected, virtual]

Initialises the three key schedule arrays from the specified key.

const TDesC8 & aKey

The key to be used for encryption. The key length must be K3DESKeySize = 24 bytes.

IMPORT_C C3DESDecryptor *

NewL

(

const TDesC8 &

aKey

)

[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 be K3DESKeySize = 24 bytes.

IMPORT_C C3DESDecryptor *

NewLC

(

const TDesC8 &

aKey

)

[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 be K3DESKeySize = 24 bytes.