CPaddingPKCS7 Class Reference
| class CPaddingPKCS7 : public CPadding |
This concrete subclass of CPadding implements padding according to the PKCS#7/TLS standard.
| 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::MaxUnPaddedLength(TInt)const |
| | CPadding::PadL(const TDesC8 &,TDes8 &) |
| | CPadding::SetBlockSize(TInt) |
Constructor & Destructor Documentation
CPaddingPKCS7(TInt)
| IMPORT_C | CPaddingPKCS7 | ( | TInt | aBlockBytes | ) | [protected] |
Parameters
| TInt aBlockBytes | The block size in bytes. |
CPaddingPKCS7(void)
| CPaddingPKCS7 | ( | void | | ) | [private] |
CPaddingPKCS7(const CPaddingPKCS7 &)
Member Functions Documentation
DoPadL(const TDesC8 &, TDes8 &)
| void | DoPadL | ( | const TDesC8 & | aInput, |
| | TDes8 & | aOutput |
| | ) | [private, virtual] |
MaxPaddedLength(TInt)
|
TInt
| MaxPaddedLength | ( | TInt | aInputBytes | ) | const [virtual] |
Gets the size of the aOutput buffer, in a call to PadL(), must be in order to accommodate a block size of BlockSize() and an input size of aInputBytes.
Note:
By default, this function returns the output of BlockSize(). If a derived padding system outputs more than a single block of padding, one must override this function and return the appropriate value.
Parameters
| TInt aInputBytes | The amount of data to be padded out in bytes. |
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.
NewL(TInt)
Parameters
| TInt aBlockBytes | The block size in bytes. |
NewLC(TInt)
Creates a new CPaddingPKCS7 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 CPaddingPKCS7 &)
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v1.0.