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CPaddingPKCS1Encryption Class Reference

class CPaddingPKCS1Encryption : public CPadding

This concrete subclass of CPadding implements PKCS#1 v1.5 encryption padding. It is intended for use with RSA encryption/decryption.

Inherits from

Public Member Functions
TInt MinPaddingLength (void)
IMPORT_C CPaddingPKCS1Encryption * NewL ( TInt )
IMPORT_C CPaddingPKCS1Encryption * NewLC ( TInt )
void UnPadL (const TDesC8 &, TDes8 &)
Protected Member Functions
CPaddingPKCS1Encryption ( TInt )
Private Member Functions
CPaddingPKCS1Encryption (void)
CPaddingPKCS1Encryption (const CPaddingPKCS1Encryption &)
void DoPadL (const TDesC8 &, TDes8 &)
CPaddingPKCS1Encryption & operator= (const CPaddingPKCS1Encryption &)
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()
CPadding::BlockSize(void)const
CPadding::CPadding(TInt)
CPadding::GetExtension(TUint,TAny *&,TAny *)
CPadding::MaxPaddedLength(TInt)const
CPadding::MaxUnPaddedLength(TInt)const
CPadding::PadL(const TDesC8 &,TDes8 &)
CPadding::SetBlockSize(TInt)

Constructor & Destructor Documentation

CPaddingPKCS1Encryption(TInt)

IMPORT_C CPaddingPKCS1Encryption ( TInt aBlockBytes ) [protected]

Constructor

Parameters

TInt aBlockBytes The block size in bytes.

CPaddingPKCS1Encryption(void)

CPaddingPKCS1Encryption ( void ) [private]

Parameters

void

CPaddingPKCS1Encryption(const CPaddingPKCS1Encryption &)

CPaddingPKCS1Encryption ( const CPaddingPKCS1Encryption & ) [private]

Parameters

const CPaddingPKCS1Encryption &

Member Functions Documentation

DoPadL(const TDesC8 &, TDes8 &)

void DoPadL ( const TDesC8 & aInput,
TDes8 & aOutput
) [private, virtual]

Parameters

const TDesC8 & aInput
TDes8 & aOutput

MinPaddingLength(void)

TInt MinPaddingLength ( void ) const [virtual]

Gets the smallest number of bytes that PadL() will ever add to aInput in order to get a valid block aligned aOutput.

For example, in SSLv3 padding, if the block size is 8 and aInput is 7 bytes, it will append 1 byte of padding. For SSLv3 padding, this is the smallest amount possible as an 8 byte input will add another block size (8 more bytes) of padded data.

Parameters

void

NewL(TInt)

IMPORT_C CPaddingPKCS1Encryption * NewL ( TInt aBlockBytes ) [static]

Creates a new CPaddingPKCS1Encryption object.

Parameters

TInt aBlockBytes The block size in bytes.

NewLC(TInt)

IMPORT_C CPaddingPKCS1Encryption * NewLC ( TInt aBlockBytes ) [static]

Creates a new CPaddingPKCS1Encryption object and leaves a pointer to it on the cleanup stack.

Parameters

TInt aBlockBytes The block size in bytes.

UnPadL(const TDesC8 &, TDes8 &)

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

Removes padding from aInput and appends unpadded result to aOutput.

Parameters

const TDesC8 & aInput Data to be unpadded.
TDes8 & aOutput On return, the unpadded data.

operator=(const CPaddingPKCS1Encryption &)

CPaddingPKCS1Encryption & operator= ( const CPaddingPKCS1Encryption & ) [private]

Parameters

const CPaddingPKCS1Encryption &

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