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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

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 ( TUint 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 ( TUint 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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