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CPBDecryptor Class Reference

class CPBDecryptor : public CBase

Abstract class defining the interface required to allow the actual transformation of ciphertext to plaintext.

Generally this class' descendants are constructed using the functions CPBEncryptElement::NewDecryptLC() or CPBEncryptSet::NewDecryptLC().

Inherits from

CPBDecryptor
- CBase

Public Member Functions
TInt	MaxFinalOutputLength(TUint)
TInt	MaxOutputLength(TUint)
void	Process(const TDesC8 &, TDes8 &)
void	ProcessFinalL(const TDesC8 &, TDes8 &)

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()

Member Functions Documentation

MaxFinalOutputLength(TUint)

TInt

MaxFinalOutputLength

(

aMaxInputLength

)

const [pure virtual]

Gets the maximum length of the output given a certain input length.

Parameters

TUint aMaxInputLength

The maximum input length in bytes.

MaxOutputLength(TUint)

TInt

MaxOutputLength

(

aMaxInputLength

)

const [pure virtual]

Gets the maximum length of the output given a certain input length.

Parameters

TUint aMaxInputLength

The maximum input length in bytes.

Process(const TDesC8 &, TDes8 &)

void	Process	(	const TDesC8 &	aInput,
			TDes8 &	aOutput
		)	[pure virtual]

Transforms aInput into its decrypted form, aOutput, and unpads.

See the Cryptography api-guide documentation for an explanation of how buffering of data supplied to this function is handled.

Parameters

const TDesC8 & aInput	The ciphertext.
TDes8 & aOutput	On return, the plaintext.

ProcessFinalL(const TDesC8 &, TDes8 &)

void	ProcessFinalL	(	const TDesC8 &	aInput,
			TDes8 &	aOutput
		)	[pure virtual]

Transforms aInput into its decrypted form, aOutput, and unpads.

Parameters

const TDesC8 & aInput	The ciphertext.
TDes8 & aOutput	On return, the plaintext.

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