CPaddingSSLv3 Class Reference
| class CPaddingSSLv3 : public CPadding |
This concrete subclass of CPadding implements padding according to the SSLv3/TLS standard.
The SSL 3.0 spec does not specifiy the padding bytes to be used - it is assumed to be arbitrary (and the openssl implementation uses non-zero random data). The TLS spec however states that padding bytes should be the length of the padding - 1. This class implements the latter when padding, but does not check the padding byes when unpadding, so as to be interoperable with SSL 3.0.
| 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
CPaddingSSLv3(TInt)
| IMPORT_C | CPaddingSSLv3 | ( | TInt | aBlockBytes | ) | [protected] |
Parameters
| TInt aBlockBytes | The block size in bytes. |
CPaddingSSLv3(void)
| CPaddingSSLv3 | ( | void | | ) | [private] |
CPaddingSSLv3(const CPaddingSSLv3 &)
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 CPaddingSSLv3 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 CPaddingSSLv3 &)
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reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License
v1.0.